CN110244473A - A display device and glasses - Google Patents

Abstract

An embodiment of the present application provides a display device and glasses. The glasses include a glasses body, an optical projection lens, and a display device. The glasses body includes glasses lenses and temples. The display device includes a micro OLED, an MCU, and a communication module; Inside the projection lens, the optical projection lens is set on the mirror leg close to the lens of the glasses. The MCU and communication module are integrated on the PCB board, and the PCB board is set inside the mirror leg; the communication module is used to receive multimedia information from the terminal device and send it to the MCU Send multimedia information; MCU is used to send the first information to the micro OLED; the micro OLED is used to convert the first information from an electrical signal to an optical signal, and project the optical signal to the optical projection lens; the optical projection lens is used to convert the projected optical signal The light is concentrated onto the spectacle lens; the spectacle lens is used to reflect the concentrated light signal to the user's eyes. In the embodiment of the present application, power consumption and volume can be reduced.

Description

A display device and glasses

technical field

The invention relates to the field of multimedia technology, in particular to a display device and glasses.

Background technique

The head up display (HUD) first appeared on military aircraft. It uses the principle of optical reflection to project important flight-related information on a piece of glass. , the projected text and images are adjusted to an infinite focal distance. When the pilot looks forward through the HUD, he can easily integrate the external scene with the data displayed on the HUD. The HUD device is a device provided with a HUD. Augmented reality technology (augmented reality, AR) is a technology that calculates the position and angle of camera images in real time and adds corresponding images, videos, and 3D models. The goal of this technology is to put the virtual world on the screen in the real world. and interact. Currently, liquid crystal on silicon (liquid crystal on silicon, LCOS) is generally used as a display technology in a HUD device with AR. However, since LCOS requires a dedicated driving circuit, the power consumption and volume of the HUD device with AR using the LCOS display technology are relatively large.

Contents of the invention

Embodiments of the present application provide a display device and glasses for reducing power consumption and volume.

The first aspect provides a kind of glasses, including glasses body, optical projection lens and display device, glasses body can include glasses lenses and temples, and display device can include micro (Micro) organic light emitting diode (organic light emitting diode, OLED), micro control Unit (micro control unit, MCU) and communication module; Micro OLED is set inside the optical projection lens, the optical projection lens is set on the temple leg close to the lens of the glasses, MCU and communication module are integrated on the printed circuit board (printed circuit board, PCB ) board, the PCB board is arranged inside the mirror leg, and the MCU is respectively coupled to the micro OLED and the communication module; the communication module receives multimedia information from the terminal device, and sends the multimedia information to the MCU. The multimedia information may include the first information, and the first information may be The video information can also be image information; the MCU sends the first information to the Micro OLED; the Micro OLED converts the first information from an electrical signal to an optical signal, and projects the optical signal to the optical projection lens; the optical projection lens gathers the projected optical signal The light hits the spectacle lenses; the spectacle lenses reflect the concentrated light signal to the user's eyes. Since the power consumption of the Micro OLED is low, and the Micro OLED does not require a dedicated power supply circuit, the power consumption and volume of the display device can be reduced, thereby reducing the power consumption and volume of the glasses.

As a possible implementation manner, the display device may further include an ambient light sensor, the ambient light sensor is integrated on the PCB, and the ambient light sensor is coupled to the MCU; the ambient light sensor collects the first brightness of the ambient light, and sends the first brightness to the MCU; The MCU obtains the second brightness corresponding to the first brightness according to the corresponding relationship between the brightness of the ambient light and the display brightness of the Micro OLED, and sends the second brightness to the Micro OLED; the Micro OLED can first adjust the brightness of the light signal to the second brightness, and then The adjusted optical signal is projected to the optical projection lens. It can be seen that the brightness of the light signal projected by the Micro OLED can be adjusted according to the brightness of the ambient light collected by the ambient light sensor, so that the flexibility of adjusting the brightness of the light signal projected by the OLED can be improved.

As a possible implementation manner, the display device may also include a proximity light sensor, which is integrated on the PCB board, and the proximity light sensor is coupled to the MCU; the proximity light sensor can detect the distance between the proximity light sensor and the user, and send the message to the MCU. The distance; the MCU can also control the Micro OLED to be in the working state when the distance is less than or equal to (or less than) the threshold, and control the Micro OLED to be in the off state when the distance is greater than (or not less than) the threshold. It can be seen that the working or closing of the Micro OLED can be flexibly controlled according to the distance between the proximity light sensor and the user, so that the ability to control the Micro OLED can be improved.

As a possible implementation manner, the display device can also include a compass, an acceleration sensor and a gyroscope, the compass, the acceleration sensor and the gyroscope are integrated on the PCB board, and the compass, the acceleration sensor and the gyroscope are respectively coupled to the MCU; the compass can collect the user's The first attitude data, send the first attitude data to the MCU; the acceleration sensor can collect the user's second attitude data, and send the second attitude data to the MCU; the gyroscope can collect the user's third attitude data, and send the third attitude data to the MCU ; The MCU can also adjust the first information according to the first attitude data, the second attitude data and the third attitude data, and send the adjusted first information to the Micro OLED; the Micro OLED can convert the adjusted first information from an electrical signal to light signal. It can be seen that the MCU can timely adjust the content projected by the Micro OLED according to the user's attitude data collected by the compass, acceleration sensor and gyroscope, thereby improving the flexibility of the displayed content.

As a possible implementation, the MCU may send the first posture data, the second posture data and the third posture data to the communication module, and the communication module sends the first posture data, the second posture data and the third posture data to the terminal device, The communication module receives the second information from the terminal device, sends the second information to the MCU, and the MCU sends the second information to the Micro OLED, and the Micro OLED converts the second information from an electrical signal to an optical signal. The second information is the information after adjusting the first information according to the first attitude data, the second attitude data and the third attitude data. It can be seen that the user's attitude data collected by the compass, acceleration sensor and gyroscope can be obtained from the terminal device. OLED projected content, which can increase the flexibility of display content.

As a possible implementation, the display device may also include an audio output device, the audio output device is integrated on the PCB board at a position away from the spectacle lens, and the audio output device is coupled to the MCU; the MCU may also, when the multimedia information includes an audio signal, Send the first audio signal to the audio output device, where the first audio signal is an audio signal included in the multimedia information; the audio output device can output the first audio signal. It can be seen that not only the information to be displayed can be displayed by means of projection, but also an audio signal can be output, so that the richness of the output content can be improved.

As a possible implementation manner, the display device can also include an audio collection device, the audio collection device is arranged on the mirror leg near the eyeglass lens, and the audio collection device is coupled to the MCU; the audio collection device can collect the second audio signal and send it to the MCU. The second audio signal; the MCU can also send the second audio signal to the communication module; the communication module can also send the second audio signal to the terminal device. It can be seen that not only the information to be displayed and the output audio signal can be displayed through projection, but also the audio signal can be collected, so that voice interaction can be realized.

As a possible implementation manner, the display device may also include an audio codec chip, the audio codec chip is integrated on the PCB board, and the audio codec chip is respectively coupled to the audio output device, the audio collection device and the MCU; Sending the first audio signal; the audio codec chip decodes the first audio signal, and sends the decoded first audio signal to the audio output device; the audio output device outputs the decoded first audio signal. The audio collection device sends the second audio signal to the audio codec chip; the audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU; the MCU sends the third audio signal to the communication module; The module sends the third audio signal to the terminal device. It can be seen that the transmitted voice signal is a coded voice signal, therefore, the reliability of information transmission can be improved.

As a possible implementation, the display device may also include a battery and a charging management chip, the charging management chip is integrated on the PCB, the battery is arranged inside the temple, and the charging management chip is coupled to the MCU and the battery respectively; when the charging management chip detects When the charger is connected to the glasses, it can send a charging signal to the MCU; the MCU can also obtain the third information of the charger according to the charging signal, and send the third information to the charging management chip; the charging management chip can also control the charging of the battery according to the third information current and charging voltage. The third information is the information of the charger. It can be seen that after the charger is coupled, it does not directly charge the battery, but needs to determine the charging current and charging voltage of the battery according to the information of the charger, so as to avoid using a large current to charge the battery, thereby improving the safety of battery charging .

As a possible implementation manner, the display device may also include a control switch and a power management chip, the power management chip is integrated on the PCB, the control switch is arranged outside the mirror leg on the same side as the PCB, and the power management chip is respectively coupled to the control switch and the power management chip. MCU; the control switch can send a shutdown command to the power management chip; the power management chip can cut off the path between the battery and the power supply unit according to the shutdown command, and the power supply unit is a component that needs battery power in the display device. The control switch can also send a power-on command to the power management chip; the power management chip can also connect the path between the battery and the power supply unit according to the power-on command. It can be seen that the power-on and power-off of the glasses can be flexibly controlled through the control switch.

The second aspect provides a display device, which is applied to a HUD device with AR. The display device may include a Micro OLED, an MCU, and a communication module; the MCU is coupled to the Micro OLED and the communication module; the communication module is used to receive information from the terminal device. The multimedia information is sent to the MCU, the multimedia information includes the first information, and the first information can be video information or image information; the MCU is used to send the first information to the Micro OLED; the Micro OLED is used to send the first information The electrical signal is converted into an optical signal, and the optical signal is projected to the optical projection lens. The optical projection lens can condense the projected optical signal onto the spectacle lens, and the spectacle lens can reflect the condensed optical signal to the user's eyes. Since the power consumption of the Micro OLED is low, and the Micro OLED does not require a dedicated power supply circuit, the power consumption and size of the display device can be reduced.

As a possible implementation manner, the display device may further include an ambient light sensor, which is coupled to the MCU, and the ambient light sensor may collect the first brightness of the ambient light and send the first brightness to the MCU; the MCU may Correspondence between the display brightness of Micro OLED Obtain the second brightness corresponding to the first brightness, and send the second brightness to Micro OLED; Micro OLED can first adjust the brightness of the light signal to the second brightness, and then project the adjusted light signal to the optical Projection lens. It can be seen that the brightness of the light signal projected by the MicroOLED can be adjusted according to the brightness of the ambient light collected by the ambient light sensor, so that the flexibility of adjusting the brightness of the light signal projected by the OLED can be improved.

As a possible implementation, the display device may also include a proximity light sensor, which is coupled to the MCU, and the proximity light sensor detects the distance between the proximity light sensor and the user, and sends the distance to the MCU; When the distance is equal to the threshold, the Micro OLED is controlled to be in the working state, and when the distance is greater than the threshold, the Micro OLED is controlled to be in the off state. It can be seen that the working or closing of the Micro OLED can be flexibly controlled according to the distance between the proximity light sensor and the user, so that the ability to control the Micro OLED can be improved.

As a possible implementation manner, the display device may also include a compass, an acceleration sensor, and a gyroscope, and the compass, the acceleration sensor, and the gyroscope are respectively coupled to the MCU; the compass collects the first attitude data of the user, and sends the first attitude data to the MCU; The sensor collects the second posture data of the user, and sends the second posture data to the MCU; the gyroscope collects the third posture data of the user, and sends the third posture data to the MCU; the MCU can use the first posture data, the second posture data and the third posture data The attitude data adjusts the first information, and sends the adjusted first information to the Micro OLED; the Micro OLED can convert the adjusted first information from an electrical signal to an optical signal. It can be seen that the MCU can timely adjust the content projected by the Micro OLED according to the user's attitude data collected by the compass, acceleration sensor and gyroscope, thereby improving the flexibility of the displayed content.

As a possible implementation, the MCU may send the first posture data, the second posture data and the third posture data to the communication module, and the communication module sends the first posture data, the second posture data and the third posture data to the terminal device, The communication module receives the second information from the terminal device, sends the second information to the MCU, and the MCU sends the second information to the Micro OLED, and the Micro OLED converts the second information from an electrical signal to an optical signal. The second information is the information after adjusting the first information according to the first attitude data, the second attitude data and the third attitude data. It can be seen that the user's attitude data collected by the compass, acceleration sensor and gyroscope can be obtained from the terminal device. The content projected by Micro OLED can improve the flexibility of display content.

As a possible implementation manner, the display device may further include an audio output device, the audio output device is coupled to the MCU, and the MCU may send a first audio signal to the audio output device when the multimedia information includes an audio signal, and the first audio signal is The audio signal included in the multimedia information; the audio output device outputs the first audio signal. It can be seen that not only the information to be displayed can be displayed by means of projection, but also an audio signal can be output, so that the richness of the output content can be improved.

As a possible implementation manner, the display device may further include an audio collection device, the audio collection device is coupled to the MCU, the audio collection device collects the second audio signal, and sends the second audio signal to the MCU; the MCU sends the second audio signal to the communication module; The communication module sends the second audio signal to the terminal device. It can be seen that not only the information to be displayed and the output audio signal can be displayed through projection, but also the audio signal can be collected, so that voice interaction can be realized.

As a possible implementation manner, the display device may also include an audio codec chip, and the audio codec chip is respectively coupled to an audio output device, an audio collection device, and an MCU; the MCU sends the first audio signal to the audio codec chip; the audio codec chip The first audio signal is decoded, and the decoded first audio signal is sent to the audio output device; the audio output device outputs the decoded first audio signal. The audio collection device sends the second audio signal to the audio codec chip, and the audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU; the MCU sends the third audio signal to the communication module; The module sends the third audio signal to the terminal device. It can be seen that the transmitted voice signal is a coded voice signal, therefore, the reliability of information transmission can be improved.

As a possible implementation, the display device may also include a battery and a charging management chip, the charging management chip is coupled to the MCU and the battery respectively; when the charging management chip detects that the charger is connected to the HUD device, it sends a charging signal to the MCU; the MCU according to The charging signal acquires the third information of the charger, and sends the third information to the charging management chip; the charging management chip controls the charging current and charging voltage of the battery according to the third information. The third information is the information of the charger. It can be seen that after the charger is connected, the battery is not charged directly, but the charging current and charging voltage of the battery need to be determined according to the information of the charger, so as to avoid using a large current to charge the battery, thereby improving the safety of battery charging .

As a possible implementation, the display device may also include a control switch and a power management chip, and the power management chip is coupled to the control switch and the MCU respectively; the control switch can send a shutdown command to the power management chip; the power management chip can cut off the battery according to the shutdown command. The path to the power supply component, the power supply component is a component in the display device that needs to be powered by a battery. The control switch can also send a power-on command to the power management chip; the power management chip can connect the path between the battery and the power supply unit according to the power-on command. It can be seen that the power-on and power-off of the HUD device can be flexibly controlled through the control switch.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

Fig. 2 is a schematic structural view of glasses provided by an embodiment of the present application;

Fig. 3 is a structural diagram of glasses provided by another embodiment of the present application;

Fig. 4 is a schematic structural diagram of a display device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a display device provided by another embodiment of the present application.

Detailed ways

Embodiments of the present application provide a display device and glasses for reducing power consumption and volume. Each will be described in detail below.

In order to better understand the display device and the glasses provided by the embodiment of the present application, the network architecture used in the embodiment of the present application will be described below first. Please refer to FIG. 1. FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application. As shown in FIG. 1 , the network architecture may include a HUD device 101 and a terminal device 102 . Communication between the HUD device 101 and the terminal device 102 may be performed through a network, that is, information exchange may be performed through a network. For example, the HUD device 101 may send collected voice signals to the terminal device 102 , and may also send collected user posture data to the terminal device 102 ; the terminal device 102 may send multimedia information to the HUD device 101 . The HUD device 101 may be a HUD device with AR. The terminal device 102 may be a device capable of communicating, such as a tablet computer and a mobile phone.

Please refer to FIG. 2 . FIG. 2 is a schematic structural diagram of glasses provided by an embodiment of the present application. As shown in Figure 2, the glasses may include a glasses body 21, an optical projection lens 22 and a display device, the glasses body 21 may include glasses lenses 211 and temples 212, and the display device may include a Micro OLED, an MCU and a communication module, wherein:

The Micro OLED is arranged inside the optical projection lens 22, the optical projection lens 22 is arranged on the mirror leg 212 near the position of the spectacle lens 211, the MCU and the communication module are integrated on the PCB board, the PCB board is arranged inside the mirror leg 212, and the MCU is respectively coupled to the micro OLED and communication modules;

The communication module is used to receive multimedia information from the terminal device and send the multimedia information to the MCU. The multimedia information may include first information, and the first information is video information or image information;

The MCU is used to send the first information to the Micro OLED;

The Micro OLED is used to convert the first information from an electrical signal to an optical signal, and project the optical signal to the optical projection lens 22;

The optical projection lens 22 is used for focusing the projected optical signal onto the spectacle lens 211;

The spectacle lens 211 is used to reflect the concentrated light signal to the user's eyes.

The glasses may include a glasses body 21 , an optical projection lens 22 and a display device. The spectacle body 21 may include a spectacle lens 211 and a temple 212 , and the spectacle body may also include a mirror ring for assembling the spectacle lens, a stud for coupling the mirror ring and the temple, and a nose bridge for coupling the two mirror rings. The display device may include a Micro OLED, an MCU and a communication module, and the Micro OLED is arranged inside the optical projection lens 22 . The optical projection lens 22 is arranged on the mirror leg 212 near the position of the spectacle lens 211, it can be arranged on the left mirror leg, it can also be arranged on the right mirror leg, or it can also be arranged on both mirror legs, as shown in Fig. 2 A kind of embodiment that is arranged on the right temple 212 is shown. The MCU and the communication module can be integrated on the PCB board, and the PCB board is arranged inside the mirror leg 212, can be arranged inside the left mirror leg, and can also be arranged inside the right mirror leg. FIG. An embodiment.

After receiving the multimedia information, the communication module in the display device can send the multimedia information to the MCU. After the MCU receives the multimedia information from the communication module, it may first analyze the multimedia information, and if it is analyzed that the multimedia information includes the first information, it may send the first information to the Micro OLED. After the Micro OLED receives the first information from the MCU, it can convert the first information from an electrical signal to an optical signal, and then project the optical signal to the optical projection lens 22, and the optical projection lens 22 can focus the projected optical signal to the On the spectacle lens 211, the spectacle lens 211 can reflect the concentrated light signal to the user's eyes. Wherein, the communication module may be a Bluetooth module, may also be a wireless-fidelity (wireless-fidelity, WiFi) module, may also be a ZigBee module, or may be other modules with wireless communication functions. In the case that the information that the Micro OLED can process is different from the format and protocol of the first information, the MCU needs to convert the first information before sending it to the Micro OLED.

Please refer to FIG. 3 . FIG. 3 is a schematic structural diagram of glasses provided by another embodiment of the present application. As shown in Figure 3, the glasses can include a glasses body 31, an optical projection lens 32 and a display device, the glasses body 31 can include glasses lenses 311 and temples 312, and the display device can include a Micro OLED331, an MCU and a communication module, wherein:

Micro OLED331 is arranged inside the optical projection lens 32, and the optical projection lens 32 is arranged on the mirror leg 312 near the position of the spectacle lens 311, and the MCU and the communication module are integrated on the PCB board, and the PCB board is arranged inside the mirror leg 312, and the MCU is respectively coupled to the micro OLED and communication modules;

The communication module is used to receive multimedia information from the terminal device and send the multimedia information to the MCU. The multimedia information may include first information, and the first information is video information or image information;

MCU is used to send the first information to Micro OLED331;

The Micro OLED331 is used to convert the first information from an electrical signal to an optical signal, and project the optical signal to the optical projection lens 32;

The optical projection lens 32 is used to condense the projected optical signal onto the spectacle lens 311;

The spectacle lens 311 is used to reflect the concentrated light signal to the user's eyes.

Wherein, for a specific description, reference may be made to the description in FIG. 2 , and details are not repeated here.

In another embodiment, the display device may further include an ambient light sensor, wherein:

The ambient light sensor is integrated on the PCB, and the ambient light sensor is coupled to the MCU;

The ambient light sensor is used to collect the first brightness of the ambient light, and send the first brightness to the MCU;

The MCU is also used to obtain the second brightness corresponding to the first brightness according to the corresponding relationship between the brightness of the ambient light and the display brightness of the Micro OLED331, and send the second brightness to the Micro OLED331;

Micro OLED331 projects light signal to optical projection lens 32 including:

The Micro OLED 331 adjusts the brightness of the light signal to the second brightness, and projects the adjusted light signal to the optical projection lens 32 .

The ambient light sensor can collect the first brightness of the ambient light where the HUD device is located in real time or periodically, that is, the current brightness of the ambient light, and then send the first brightness to the MCU. After the MCU receives the first brightness from the ambient light sensor, it can obtain the second brightness corresponding to the first brightness according to the pre-stored correspondence between the brightness of the ambient light and the display brightness of the Micro OLED331, and then send the second brightness to the Micro OLED331. After Micro OLED 331 receives the second brightness from the MCU, it can adjust the brightness of the light signal to be projected to the second brightness before projecting. In the case that the light signal to be projected already has the second brightness, it does not need to be adjusted. After the MCU receives the first brightness from the ambient light sensor, it can also directly send the first brightness to the Micro OLED331. After the Micro OLED331 receives the first brightness from the MCU, it can first obtain the second brightness corresponding to the first brightness according to the corresponding relationship between the brightness of the ambient light stored in advance and the display brightness of the Micro OLED331. In the case of the brightness, the brightness of the optical signal is adjusted to the second brightness before projection.

In yet another embodiment, the display device may further include a proximity light sensor, wherein:

The proximity light sensor is integrated on the PCB, and the proximity light sensor is coupled to the MCU;

The proximity light sensor is used to detect the distance between the proximity light sensor and the user, and sends the distance to the MCU;

The MCU is also used to control the Micro OLED331 to be in the working state when the distance is less than or equal to the threshold, and to control the Micro OLED331 to be in the off state when the distance is greater than the threshold.

The proximity light sensor can detect the distance between the proximity light sensor and the user in real time or periodically, and then send the distance to the MCU. After the MCU receives the distance from the proximity light sensor, it can determine whether the distance is less than or equal to (or less than) the threshold, and if it is determined that the distance is less than or equal to (or less than) the threshold, it indicates that there is a user who wants to use or has The user is using the HUD device and controls the Micro OLED331 to be in the working state so as not to affect the user's use; when the Micro OLED331 is already in the working state, no processing is required; when the Micro OLED is off, the Micro OLED331 can be started Make Micro OLED331 in working condition. If it is judged that the distance is greater than (or not less than) the threshold, it indicates that the user is not using the HUD device, and the Micro OLED331 is turned off to save power consumption; if the Micro OLED331 is already turned off, no processing is required, When the Micro OLED331 is in the working state, the Micro OLED331 can be turned off so that the Micro OLED331 is in the off state.

In yet another embodiment, the display device may further include a compass, an acceleration sensor, and a gyroscope, wherein:

The compass, acceleration sensor and gyroscope are integrated on the PCB, and the compass, acceleration sensor and gyroscope are respectively coupled to the MCU;

The compass is used to collect the first posture data of the user, and send the first posture data to the MCU;

The acceleration sensor is used to collect the second attitude data of the user, and sends the second attitude data to the MCU;

The gyroscope is used to collect the third attitude data of the user and send the third attitude data to the MCU;

The MCU is also used to adjust the first information according to the first attitude data, the second attitude data and the third attitude data, and send the adjusted first information to the Micro OLED331;

Micro OLED331 converts the first information from electrical signal to optical signal including:

Micro OLED331 converts the adjusted first information from electrical signal to optical signal.

The compass can collect the first attitude data of the user, and then send the first attitude data to the MCU. The acceleration sensor can collect the second attitude data of the user, and then send the second attitude data to the MCU. The gyroscope collects the third attitude data of the user, and then sends the third attitude data to the MCU. After the MCU receives the first attitude data from the compass, the second attitude data from the acceleration sensor and the third attitude data from the gyroscope, it can adjust the first information according to the first attitude data, the second attitude data and the third attitude data , and then send the adjusted first information to Micro OLED331. After the Micro OLED 331 receives the adjusted first information from the MCU, it can convert the adjusted first information from an electrical signal to an optical signal. For example, in the case where the first information is map navigation information, the projected map information can be adjusted as the user moves, that is, the difference between the first posture data, the second posture data and the third posture data, such as adjusting the direction of the arrow, The position of the arrow in the map information, the projected map information, etc.

In yet another embodiment, the MCU adjusts the first information according to the first attitude data, the second attitude data and the third attitude data, and sending the adjusted first information to the Micro OLED331 may include:

The MCU sends the first attitude data, the second attitude data and the third attitude data to the communication module;

The communication module sends the first posture data, the second posture data and the third posture data to the terminal device;

The communication module receives the second information from the terminal device, and sends the second information to the MCU, where the second information is information after adjusting the first information according to the first attitude data, the second attitude data and the third attitude data;

MCU sends second information to Micro OLED331;

Micro OLED331 converts the adjusted first information from electrical signal to optical signal including:

Micro OLED331 converts the second information from electrical signal to optical signal.

After the MCU receives the first attitude data from the compass, the second attitude data from the acceleration sensor and the third attitude data from the gyroscope, it can send the first attitude data, the second attitude data and the third attitude data to the terminal device through the communication module. attitude data, so that the terminal device can adjust the first information according to the first attitude data, the second attitude data and the third attitude data to obtain the second information, and then send it to the MCU through the communication module. Then the MCU sends the second information to the MicroOLED331, so that the MicroOLED331 converts the second information from an electrical signal to an optical signal.

In yet another embodiment, the display device may further include an audio output device 332, wherein:

The audio output device 332 is integrated on the PCB board away from the spectacle lens 311, and the audio output device 332 is coupled to the MCU;

The MCU is further configured to send a first audio signal to the audio output device 331 when the multimedia information includes an audio signal, where the first audio signal is an audio signal included in the multimedia information;

The audio output device 332 is used to output the first audio signal.

After receiving the multimedia information from the communication module, the MCU may send the first audio signal to the audio output device 332 if it analyzes that the multimedia information includes an audio signal. The first audio signal is the audio signal included in the multimedia information. After receiving the first audio signal from the MCU, the audio output device 332 outputs the first audio signal. Wherein, the audio output device 332 may be a loudspeaker, a loudspeaker, and the like. There can be one audio output device 332 or multiple audio output devices. In the case of multiple audio output devices 332, one audio output device 332 can be the main audio output device, and the other audio output devices can be secondary audio output devices. The audio output device 332 is integrated on the PCB at a position away from the spectacle lens 311 , that is, the audio output device 332 should be arranged at a position closer to the user's ear.

In yet another embodiment, the display device may also include an audio collection device 333, wherein:

The audio collection device 333 is arranged on the mirror leg 312 near the spectacle lens 311, and the audio collection device 333 is coupled to the MCU;

The audio collecting device 333 is used for collecting the second audio signal, and sends the second audio signal to the MCU;

The MCU is also used to send a second audio signal to the communication module;

The communication module is also used to send the second audio signal to the terminal device.

When the user needs to obtain information from a terminal device that establishes communication coupling with the HUD device, the user can speak to the audio collection device 333, and the audio collection device 333 can collect the second audio signal, and then send the second audio signal to the MCU. After receiving the second audio signal from the audio collection device 333, the MCU sends the second audio signal to the terminal device, so as to obtain multimedia information from the terminal device that establishes communication coupling with the HUD device. The audio collection device 333 may be a microphone, or other devices with an audio collection function. There can be one audio collection device 333 or multiple audio collection devices. In the case of multiple audio collection devices 333, one audio collection device 333 may be the main audio collection device, and the other audio collection devices 333 may be secondary audio collection devices. The audio collection device 333 is arranged on the temple 312 close to the spectacle lens 311 , that is, the audio collection device 333 should be arranged at a position closer to the user's mouth.

In one embodiment, the display device may further include an audio codec chip, wherein;

The audio codec chip is integrated on the PCB, and the audio codec chip is respectively coupled to the audio output device 332, the audio collection device 333 and the MCU;

The MCU sending the first audio signal to the audio output device 332 includes:

The MCU sends the first audio signal to the audio codec chip;

The audio codec chip decodes the first audio signal, and sends the decoded first audio signal to the audio output device 332;

The audio output device 332 outputs the first audio signal including:

The audio output device 332 outputs the decoded first audio signal;

The audio collecting device 333 sending the second audio signal to the MCU includes:

The audio collection device 333 sends the second audio signal to the audio codec chip;

The audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU;

MCU sending the second audio signal to the communication module includes:

MCU sends the third audio signal to the communication module;

The communication module sending the second audio signal to the terminal device includes:

The communication module sends the third audio signal to the terminal device.

When the transmitted audio signal is a coded audio signal, the audio output device 332 cannot directly output the first audio signal. Therefore, the audio codec chip is required to decode the first audio signal before being output by the audio output device. Similarly, the second audio signal collected by the audio collection device 333 must be encoded before being sent to the MCU. When the format and protocol of the information that the audio codec chip can process and the information that the communication module can transmit are different, the MCU also needs to convert the format and protocol of the first audio signal and the second audio signal.

In yet another embodiment, the display device may further include a battery 334 and a charging management chip, wherein:

The charging management chip is integrated on the PCB, the battery 334 is arranged inside the temple 312, and the charging management chip is coupled to the MCU and the battery 334 respectively;

The charging management chip is used to send a charging signal to the MCU when the charger is detected to be connected to the glasses;

The MCU is also used to acquire third information according to the charging signal, and send the third information to the charging management chip, where the third information is information of the charger;

The charging management chip is also used to control the charging current and charging voltage of the battery 334 according to the third information.

When the charging management chip detects that the charger is connected to the HUD device, the charging management chip can send a charging signal to the MCU. After the MCU receives the charging signal from the charging management chip, it can obtain the information of the charger according to the charging signal, that is, the third information, and then send the third information to the charging management chip. After the charging management chip receives the third information from the MCU, it can control the charging current and charging voltage of the battery according to the third information. Wherein, the battery may be one battery or multiple batteries. In the case of one battery, the battery can be arranged inside the left temple or inside the right temple. In the case of multiple batteries, multiple batteries can be arranged inside the left temple, or all can be arranged inside the right temple, or some batteries can be arranged inside the left temple and some batteries can be arranged inside the right temple.

In one embodiment, the display device may further include a control switch and a power management chip, wherein:

The power management chip is integrated on the PCB, the control switch is set outside the temple 312 on the same side as the PCB, and the power management chip is coupled to the control switch and the MCU respectively;

The control switch is used to send a shutdown command to the power management chip;

The power management chip is used to cut off the path between the battery and the power supply component according to the shutdown command, and the power supply component is a component in the display device that needs battery power;

The control switch is also used to send a power-on command to the power management chip;

The power management chip is also used to connect the path between the battery and the power supply unit according to the power-on command.

The control switch is the switch of the glasses, which can be used to turn on or off the glasses, and can be turned on or off according to the operation of the control switch by the user. The power management chip can manage the battery to supply power to the power supply components in the glasses or cut off the power supply. The power management chip can also cut off the path between the battery and the power supply unit when the charger is charging the battery. At this time, the power supply unit is powered by the charger. The power management chip may be a power management integrated circuit (power management integrated circuit, PMIC), or other circuits with power management functions.

In one embodiment, as shown in FIG. 3 , the optical projection lens 32 may include an astigmatism lens 321, a reflection lens 322 and a condenser lens 323, wherein:

Micro OLED32 is used for projecting light signal on the astigmatism lens 321;

The astigmatism lens 321 is used to astigmatize the projected light signal onto the reflection lens 322;

The reflective lens 322 is used to reflect the astigmatic light signal to the condensing lens 323;

The condenser lens 323 is used to focus the reflected light signal onto the spectacle lens 311 .

In another embodiment, the optical projection lens 32 may only include a condensing lens, wherein:

Micro OLED is used to project the light signal onto the condenser lens;

The condensing lens is used to condense the projected optical signal on the spectacle lens 311 .

It can be seen that when the light signal projected by the Micro OLED 32 can be directly projected on the condensing lens, at this time, the optical projection lens can only include the condensing lens. When the light signal projected by the Micro OLED32 cannot be directly projected on the condenser lens, the optical projection lens needs to include astigmatism lens and reflective lens in addition to the condenser lens.

Please refer to FIG. 4 . FIG. 4 is a schematic structural diagram of a display device provided by an embodiment of the present application. Wherein, the display device is applied to a HUD device with an AR function. As shown in Figure 4, the display device may include Micro OLED, MCU and communication module, wherein:

The MCU is coupled to the Micro OLED and the communication module respectively;

The communication module is used to receive multimedia information from a device that establishes a communication coupling with the HUD device, and send the multimedia information to the MCU. The multimedia information includes first information, and the first information is video information or image information;

The MCU is used to send the first information to the Micro OLED;

The Micro OLED is used to convert the first information from an electrical signal to a light signal, and project the light signal to the optical projection lens, and the optical projection lens is used to condense the projected light signal onto the spectacle lens, and the spectacle lens is used to condense the light signal The light signal is reflected to the user's eyes.

Wherein, for the specific description of Micro OLED, MCU and communication module, reference may be made to the corresponding description in FIG. 2 , which will not be repeated here.

Please refer to FIG. 5 . FIG. 5 is a schematic structural diagram of a display device provided by another embodiment of the present application. Wherein, the display device is applied to a HUD device with an AR function. As shown in Figure 5, the display device shown in Figure 5 may include an ambient light sensor in addition to the Micro OLED, MCU and communication module shown in Figure 4, wherein:

Ambient light sensor coupling MCU;

The ambient light sensor is used to collect the first brightness of the ambient light, and send the first brightness to the MCU;

The MCU is also used to obtain the second brightness corresponding to the first brightness according to the corresponding relationship between the brightness of the ambient light and the display brightness of the Micro OLED, and send the second brightness to the Micro OLED;

Micro OLED project light signal to optical projection lens including:

The Micro OLED adjusts the brightness of the light signal to the second brightness, and projects the adjusted light signal to the optical projection lens.

Wherein, for the specific description of the ambient light sensor, MCU and Micro OLED, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

In another embodiment, the display device may further include a proximity light sensor, wherein:

Proximity light sensor coupling MCU;

The proximity light sensor is used to detect the distance between the proximity light sensor and the user, and sends the distance to the MCU;

The MCU is also used to control the Micro OLED to be in the working state when the distance is less than or equal to the threshold, and to control the Micro OLED to be in the off state when the distance is greater than the threshold.

Wherein, for the specific description of the proximity light sensor, MCU and Micro OLED, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

In yet another embodiment, the display device may further include a compass, an acceleration sensor, and a gyroscope, wherein:

The compass, acceleration sensor and gyroscope are respectively coupled to the MCU;

The compass is used to collect the first posture data of the user, and send the first posture data to the MCU;

The acceleration sensor is used to collect the second attitude data of the user, and sends the second attitude data to the MCU;

The gyroscope is used to collect the third attitude data of the user, and send the third attitude data to the MCU;

The MCU is also used to adjust the first information according to the first attitude data, the second attitude data and the third attitude data, and send the adjusted first information to the Micro OLED;

Micro OLED converts the first information from electrical signal to optical signal including:

Micro OLED converts the adjusted first information from electrical signal to optical signal.

For specific descriptions of the compass, acceleration sensor, gyroscope, MCU, and Micro OLED, reference may be made to the corresponding description in FIG. 3 , and details are not repeated here.

In yet another embodiment, the MCU adjusts the first information according to the first attitude data, the second attitude data and the third attitude data, and sending the adjusted first information to the Micro OLED includes:

The MCU sends the first attitude data, the second attitude data and the third attitude data to the communication module;

The communication module sends the first posture data, the second posture data and the third posture data to the terminal device;

The communication module receives the second information from the terminal device, and sends the second information to the MCU, where the second information is information after adjusting the first information according to the first attitude data, the second attitude data and the third attitude data;

MCU sends second information to Micro OLED;

Micro OLED converts the adjusted first information from electrical signal to optical signal including:

Micro OLED converts the second information from electrical signal to optical signal.

Wherein, for a specific description, reference may be made to the description corresponding to FIG. 3 , and details are not repeated here.

In yet another embodiment, the display device may further include an audio output device, wherein:

The audio output device is coupled to the MCU;

The MCU is also used to send a first audio signal to the audio output device when the multimedia information includes an audio signal, and the first audio signal is an audio signal included in the multimedia information;

The audio output device is used for outputting the first audio signal.

Wherein, for the specific description of the MCU and the audio output device, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

In yet another embodiment, the display device may also include an audio collection device, wherein:

The audio acquisition device is coupled to the MCU;

The audio collecting device is used for collecting the second audio signal, and sends the second audio signal to the MCU;

The MCU is also used to send a second audio signal to the communication module;

The communication module is also used to send the second audio signal to the terminal device.

Wherein, for the specific description of the MCU and the audio collection device, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

In yet another embodiment, the display device may further include an audio codec chip, wherein;

The audio codec chip is respectively coupled to the audio output device, the audio acquisition device and the MCU;

The MCU sends the first audio signal to the audio output device and sends the audio output device to include:

MCU sends the first audio signal to the audio codec chip;

The audio codec chip decodes the first audio signal, and sends the decoded first audio signal to the audio output device;

The audio output device outputting the first audio signal includes:

The audio output device outputs the decoded first audio signal;

The audio collecting device sends the second audio signal to the MCU including:

The audio collection device sends the second audio signal to the audio codec chip;

The audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU;

MCU sending the second audio signal to the communication module includes:

MCU sends the third audio signal to the communication module;

The communication module sending the second audio signal to the terminal device includes:

The communication module sends the third audio signal to the terminal device.

Wherein, for the specific description of the audio codec chip, the audio collection device, the MCU and the audio collection device, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

In yet another embodiment, the display device further includes a battery and a charging management chip, wherein:

The charging management chip is coupled to the MCU and the battery respectively;

The charging management chip is used to send a charging signal to the MCU when it detects that the charger is connected to the HUD device;

The MCU is also used to acquire third information according to the charging signal, and send the third information to the charging management chip, where the third information is information of the charger;

The charging management chip is also used to control the charging current and charging voltage of the battery according to the third information.

Wherein, for the specific description of the charging management chip, the battery and the MCU, reference may be made to the corresponding description in FIG. 3 , and details are not repeated here.

In one embodiment, the display device may further include a control switch and a power management chip, wherein:

The power management chip is coupled with the control switch and the MCU respectively;

The control switch is used to send a shutdown command to the power management chip;

The power management chip is used to cut off the path between the battery and the power supply component according to the shutdown command, and the power supply component is a component in the display device that needs battery power;

The control switch is also used to send a power-on command to the power management chip;

The power management chip is also used to connect the battery and power supply components according to the power-on command;

The power management chip is also used to cut off the path between the battery and the power supply components when the charger is charging the battery.

Wherein, for the specific description of the power management chip and the control switch, reference may be made to the corresponding description in FIG. 3 , which will not be repeated here.

The specific implementation described above is a further detailed description of the purpose, technical solutions and beneficial effects of the application. It should be understood that the above description is only a specific implementation of the application and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of this application shall be included within the protection scope of this application.

Claims (20)

1. A kind of glasses, it is characterized in that, comprise glasses body, optical projection lens and display device, described glasses body comprises spectacle lens and mirror leg, and described display device comprises micro OLED, micro control unit MCU and communication module, wherein: The micro OLED is arranged inside the optical projection lens, the optical projection lens is arranged on the temple leg close to the spectacle lens, the MCU and the communication module are integrated on the printed circuit board PCB, The PCB board is arranged inside the temple, and the MCU is respectively coupled to the micro OLED and the communication module; The communication module is used to receive multimedia information from a terminal device, and send the multimedia information to the MCU, where the multimedia information includes first information, and the first information is video information or image information; The MCU is configured to send the first information to the micro OLED; The micro OLED is used to convert the first information from an electrical signal to an optical signal, and project the optical signal to the optical projection lens; The optical projection lens is used to condense the projected light signal onto the spectacle lens; The spectacle lens is used to reflect the focused light signal to the user's eyes. 2. The glasses according to claim 1, wherein the display device further comprises an ambient light sensor, wherein: The ambient light sensor is integrated on the PCB board, and the ambient light sensor is coupled to the MCU; The ambient light sensor is used to collect a first brightness of ambient light, and send the first brightness to the MCU; The MCU is further configured to obtain a second brightness corresponding to the first brightness according to the correspondence between the brightness of ambient light and the display brightness of the micro OLED, and send the second brightness to the micro OLED; Projecting the optical signal to the optical projection lens by the micro OLED includes: The micro OLED adjusts the brightness of the light signal to the second brightness, and projects the adjusted light signal to the optical projection lens. 3. The glasses according to claim 1 or 2, wherein the display device further comprises a proximity light sensor, wherein: The proximity light sensor is integrated on the PCB board, and the proximity light sensor is coupled to the MCU; The proximity light sensor is used to detect the distance between the proximity light sensor and the user, and send the distance to the MCU; The MCU is further configured to control the micro OLED to be in an on state when the distance is less than or equal to a threshold, and to control the micro OLED to be in an off state when the distance is greater than the threshold. 4. The glasses according to any one of claims 1-3, wherein the display device further comprises a compass, an acceleration sensor and a gyroscope, wherein: The compass, the acceleration sensor and the gyroscope are integrated on the PCB, and the compass, the acceleration sensor and the gyroscope are respectively coupled to the MCU; The compass is used to collect first posture data of the user, and send the first posture data to the MCU; The acceleration sensor is used to collect the second posture data of the user, and send the second posture data to the MCU; The gyroscope is used to collect third posture data of the user, and send the third posture data to the MCU; The MCU is further configured to adjust the first information according to the first posture data, the second posture data and the third posture data, and send the adjusted first information to the micro OLED; The conversion of the first information from an electrical signal to an optical signal by the micro OLED includes: The micro OLED converts the adjusted first information from an electrical signal into an optical signal. 5. The glasses according to claim 4, wherein the MCU adjusts the first information according to the first attitude data, the second attitude data and the third attitude data, and sends the information to the micro The adjusted first information sent by OLED includes: The MCU sends the first posture data, the second posture data and the third posture data to the communication module; The communication module sends the first posture data, the second posture data and the third posture data to the terminal device; The communication module receives second information from the terminal device, and sends the second information to the MCU, the second information is based on the first posture data, the second posture data and the first posture data. The information obtained by adjusting the first information from the three attitude data; The MCU sends the second information to the micro OLED; The conversion of the adjusted first information from an electrical signal into an optical signal by the micro OLED includes: The micro OLED converts the second information from an electrical signal into an optical signal. 6. The glasses according to any one of claims 1-5, wherein the display device further comprises an audio output device, wherein: The audio output device is integrated on the PCB at a position away from the spectacle lens, and the audio output device is coupled to the MCU; The MCU is further configured to send a first audio signal to the audio output device when the multimedia information includes an audio signal, where the first audio signal is the audio signal included in the multimedia information; The audio output device is used to output the first audio signal. 7. The glasses according to claim 6, wherein the display device further comprises an audio collection device, wherein: The audio collection device is arranged on the temple at a position close to the spectacle lens, and the audio collection device is coupled to the MCU; The audio collection device is used to collect a second audio signal, and send the second audio signal to the MCU; The MCU is also configured to send the second audio signal to the communication module; The communication module is further configured to send the second audio signal to the terminal device. 8. The glasses according to claim 7, wherein the display device further comprises an audio codec chip, wherein: The audio codec chip is integrated on the PCB board, and the audio codec chip is respectively coupled to the audio output device, the audio collection device and the MCU; The MCU sending the first audio signal to the audio output device includes: The MCU sends a first audio signal to the audio codec chip; The audio codec chip decodes the first audio signal, and sends the decoded first audio signal to the audio output device; The audio output device outputting the first audio signal includes: the audio output device outputs the decoded first audio signal; Sending the second audio signal by the audio collection device to the MCU includes: The audio collection device sends the second audio signal to the audio codec chip; The audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU; The MCU sending the second audio signal to the communication module includes: The MCU sends the third audio signal to the communication module; Sending the second audio signal by the communication module to the terminal device includes: The communication module sends the third audio signal to the terminal device. 9. The glasses according to any one of claims 1-8, wherein the display device further comprises a battery and a charging management chip, wherein: The charging management chip is integrated on the PCB, the battery is arranged inside the temple, and the charging management chip is coupled to the MCU and the battery respectively; The charging management chip is used to send a charging signal to the MCU when it is detected that the charger is connected to the glasses; The MCU is further configured to obtain third information according to the charging signal, and send the third information to the charging management chip, where the third information is information of the charger; The charging management chip is also used to control the charging current and charging voltage of the battery according to the third information. 10. The glasses according to claim 9, wherein the display device further comprises a control switch and a power management chip, wherein: The power management chip is integrated on the PCB, the control switch is arranged outside the temple on the same side as the PCB, and the power management chip is coupled to the control switch and the MCU respectively; The control switch is used to send a shutdown command to the power management chip; The power management chip is used to cut off the path between the battery and the power supply component according to the shutdown command, and the power supply component is a component in the display device that needs power from the battery; The control switch is also used to send a power-on command to the power management chip; The power management chip is also used for connecting the path between the battery and the power supply component according to the power-on command. 11. A display device, characterized in that the display device is applied to a head-up display HUD device with augmented reality technology AR, and the display device includes a micro OLED, an MCU and a communication module, wherein: The MCU is respectively coupled to the micro OLED and the communication module; The communication module is used to receive multimedia information from a terminal device, and send the multimedia information to the MCU, where the multimedia information includes first information, and the first information is video information or image information; The MCU is configured to send the first information to the micro OLED; The micro OLED is used to convert the first information from an electrical signal to a light signal, and project the light signal to an optical projection lens, and the optical projection lens is used to condense the projected light signal onto the spectacle lens, The spectacle lens is used to reflect the focused light signal to the user's eyes. 12. The display device according to claim 11, further comprising an ambient light sensor, wherein: The ambient light sensor is coupled to the MCU; The ambient light sensor is used to collect a first brightness of ambient light, and send the first brightness to the MCU; The MCU is further configured to obtain a second brightness corresponding to the first brightness according to the correspondence between the brightness of ambient light and the display brightness of the micro OLED, and send the second brightness to the micro OLED; Projecting light signals to the optical projection lens by the micro OLED includes: The micro OLED adjusts the brightness of the light signal to the second brightness, and projects the adjusted light signal to the optical projection lens. 13. The display device according to claim 11 or 12, wherein the display device further comprises a proximity light sensor, wherein: The proximity light sensor is coupled to the MCU; The proximity light sensor is used to detect the distance between the proximity light sensor and the user, and send the distance to the MCU; The MCU is further configured to control the micro OLED to be in an on state when the distance is less than or equal to a threshold, and to control the micro OLED to be in an off state when the distance is greater than the threshold. 14. The display device according to any one of claims 11-13, wherein the display device further comprises a compass, an acceleration sensor and a gyroscope, wherein: The compass, the acceleration sensor and the gyroscope are respectively coupled to the MCU; The compass is used to collect first posture data of the user, and send the first posture data to the MCU; The acceleration sensor is used to collect the second posture data of the user, and send the second posture data to the MCU; The gyroscope is used to collect third posture data of the user, and send the third posture data to the MCU; The MCU is further configured to adjust the first information according to the first posture data, the second posture data and the third posture data, and send the adjusted first information to the micro OLED; The conversion of the first information from an electrical signal to an optical signal by the micro OLED includes: The micro OLED converts the adjusted first information from an electrical signal into an optical signal. 15. The display device according to claim 14, wherein the MCU adjusts the first information according to the first attitude data, the second attitude data and the third attitude data, and sends the information to the The adjusted first information sent by the micro OLED includes: The MCU sends the first posture data, the second posture data and the third posture data to the communication module; The communication module sends the first posture data, the second posture data and the third posture data to the terminal device; The communication module receives second information from the terminal device, and sends the second information to the MCU, the second information is based on the first posture data, the second posture data and the first posture data. The information obtained by adjusting the first information from the three posture data; The MCU sends the second information to the micro OLED; The conversion of the adjusted first information from an electrical signal into an optical signal by the micro OLED includes: The micro OLED converts the second information from an electrical signal into an optical signal. 16. The display device according to any one of claims 11-15, wherein the display device further comprises an audio output device, wherein: The audio output device is coupled to the MCU; The MCU is further configured to send a first audio signal to the audio output device when the multimedia information includes an audio signal, where the first audio signal is the audio signal included in the multimedia information; The audio output device is used to output the first audio signal. 17. The display device according to claim 16, wherein the display device further comprises an audio collection device, wherein: The audio collection device is coupled to the MCU; The audio collection device is used to collect a second audio signal, and send the second audio signal to the MCU; The MCU is also configured to send the second audio signal to the communication module; The communication module is further configured to send the second audio signal to the terminal device. 18. The display device according to claim 17, further comprising an audio codec chip, wherein: The audio codec chip is respectively coupled to the audio output device, the audio collection device and the MCU; The MCU sending the first audio signal to the audio output device includes: The MCU sends a first audio signal to the audio codec chip; The audio codec chip decodes the first audio signal, and sends the decoded first audio signal to the audio output device; The audio output device outputting the first audio signal includes: the audio output device outputs the decoded first audio signal; Sending the second audio signal by the audio collection device to the MCU includes: The audio collection device sends the second audio signal to the audio codec chip; The audio codec chip encodes the second audio signal to obtain a third audio signal, and sends the third audio signal to the MCU; The MCU sending the second audio signal to the communication module includes: The MCU sends the third audio signal to the communication module; Sending the second audio signal by the communication module to the terminal device includes: The communication module sends the third audio signal to the terminal device. 19. The display device according to any one of claims 11-18, further comprising a battery and a charge management chip, wherein: The charge management chip is coupled to the MCU and the battery respectively; The charging management chip is used to send a charging signal to the MCU when it is detected that the charger is connected to the HUD device; The MCU is further configured to obtain third information according to the charging signal, and send the third information to the charging management chip, where the third information is information of the charger; The charging management chip is also used to control the charging current and charging voltage of the battery according to the third information. 20. The display device according to claim 19, further comprising a control switch and a power management chip, wherein: The power management chip is coupled to the control switch and the MCU respectively; The control switch is used to send a shutdown command to the power management chip; The power management chip is used to cut off the path between the battery and the power supply component according to the shutdown command, and the power supply component is a component in the display device that needs power from the battery; The control switch is also used to send a power-on command to the power management chip; The power management chip is also used for connecting the path between the battery and the power supply component according to the power-on command.