TWI408949B - A video system for displaying 2d&3d images - Google Patents

Abstract

A video system for displaying 2D & 3D images comprises a channel control apparatus. The channel control apparatus comprises several channels, a signal processing device. The signal processing device processing the image of 2D/3D channels and formed a communication protocol, and The communication protocol consists of several different control signal. A monitor played the processing image of 2D/3D channels, and a transmit signal equipment, to transmit a communication protocol to several 3D glasses. The communication protocol can control the 3D glasses to open the flash lenses.

Description

Single screen multi-frequency synchronous 2D and 3D audio and video system

The invention relates to a 2D and 3D audio and video system, in particular to a single-screen multi-frequency synchronous 2D and 3D audio and video system, which can enable multiple people to simultaneously watch 2D of different channels with a single screen by wearing shutter glasses. 3D audio and video system.

In recent years, due to the popularity of 3D (3D/Three Dimensional) movies, the demand for 3D movies has increased. Relative 3D products have also moved from film to LCD industry. First of all, why can humans see the depth through the visual and feel the three-dimensional sense? The most important point is that the human eye can feel the depth, that is, the "depth perception"; After the information, the relative position in the three-dimensional space can be judged. Because the position of the two eyes of the person is different, the average distance between the two eyes is about 5 to 7 cm, so there will be binocular parallax when the object is seen, and the human brain will merge the two images together (convergence). ), and produce a three-dimensional feeling; and this is called "binocular cues". In addition, humans can also judge the distance of the object from the eye's adaptation to the near and far focal length, motion parallax, perspective or light and shadow, and even if the human eye has only one eye, it can judge the distance.

Therefore, in order to make a 2D (Two Dimensional) plane film into a 3D stereoscopic film, it is necessary to make the left and right eyes of the human being see different images (that is, the binocular parallax of the general object). Through brain fusion, 2D movies can become lifelike 3D movies.

In the prior art, shutter glasses are used. The basic principle of this technique is to interactively display the images of the left and right eyes at twice the frequency on the screen, and the glasses are dynamically shielded from use. The left and right eyes of the person cover the right eye when the left eye image is displayed on the screen, and cover the left eye when the right eye image is displayed on the screen. Let the two eyes see their different images. Although in this situation, no two eyes see the image at the same time, but because of the effect of the visual persistence of the human eye, it is still possible to feel that both eyes have different images, and thus a three-dimensional effect. .

The commercially available 3D display uses this technology, and this technology is mainly applied to 3D images. When this function is not used, the 3D display is no different from the general display.

In the average family, there are usually multiple monitors in the home due to age or multiple siblings, but sometimes it is not enough to provide full family viewing. This will not only make everyone vie for TV, but even if it is to buy a monitor, it is an overhead. And if it is a 3D display, its overhead is even greater.

Therefore, the present invention provides a single-screen multi-frequency synchronous 2D and 3D audio and video system, which uses 3D display technology to convert the left-eye image and the right-eye image of the original 3D image into a first channel and a second channel, with a plurality of The shutter glasses allow one shutter glasses to provide the first channel and the other shutter glasses to provide the second channel, so that even in the case of only a single screen, the two can simultaneously watch the channel they like. When the update frequency of the display screen is 120hz (120 times per second) or more, more people can watch the channel they like at the same time, or even watch the different channels at the same time and both are 3D images.

According to the above situation, one main object of the present invention is to provide a single-screen multi-frequency synchronous 2D and 3D audio and video system, by which a 2D picture displayed on a display can be converted into a 3D picture by wearing shutter glasses.

Another main object of the present invention is to provide a single-screen multi-frequency synchronous 2D and 3D audio and video system, which uses 3D display technology to divide the display screen into multiple channels, so that different people can use a single screen at the same time. Shutter glasses to watch different channels.

Another main object of the present invention is to provide a single-screen multi-frequency synchronous 2D and 3D audio and video system, which uses 3D display technology to divide the display screen into multiple channels, so that different people can use a single screen at the same time. The shutter glasses are used to watch different channels, and the pictures are all displayed in 3D.

According to the above object, the present invention provides a single-screen multi-frequency synchronous 2D and 3D audio and video system, comprising: a multi-frequency control device having a plurality of channels and a signal editing device, the signal editing device according to a plurality of channels of 2D or 3D images Editing the playback order and generating a communication protocol signal, and the communication protocol signal is composed of a plurality of different forms of image playback control square waves (or signals) and a picture update control square wave (or signal), wherein the channels are The video playback is controlled by the different forms of image playback control square wave; a display is connected to the multi-frequency control device, and sequentially displays at least one 2D or 3D image according to the playback order of the signal editing device; a signal transmitter Is configured in the display for outputting the communication protocol signal; a plurality of shutter glasses each having a receiving device for receiving the communication protocol signal transmitted by the signal transmitter to control the shutter glasses The left and right mirrors are turned on or off.

Through the design provided by the invention, the display with 3D display function can be converted into a single-screen multi-frequency synchronous 2D and 3D audio and video system, so that the ordinary 3D display can fully utilize the 3D display technology, and the expenditure on the home purchase display can be reduced. .

The present invention discloses a single-screen multi-frequency synchronous 2D and 3D audio and video system, in particular, a video and audio system using a 3D display technology; some of the methods used for updating the screen, shutter glasses, audio transmission, and video signal transmission, This is accomplished using the prior art and is not fully described in the following description. In addition, the drawings in the following texts are not completely drawn in accordance with actual relevant dimensions, and their function is only to show a schematic diagram relating to the features of the present invention.

First, please refer to Figures 1a to 1c, which are schematic diagrams of 3D video playback. First, as shown in FIG. 1a, the 3D display technology mainly provides a left-eye picture 50 and a right-eye picture 51 with one display 10, and alternately displays the left-eye picture 50 and the right eye in a very fast frequency. The screen 51; for example, as shown in FIG. 1b, is sequentially played in the left, right, left, and right modes; therefore, as shown in FIG. 1c, when the viewer views the screen of the display with naked eyes, A screen in which the left-eye image 50 and the right-eye image 51 overlap is seen.

Next, please refer to FIG. 2, which is a schematic diagram of a 3D video system of the present invention. As shown in FIG. 2, the 3D image system includes: a display 10 having a display screen 101 for displaying images; and a signal transmitter 12 disposed in the display 10 for playing back the already arranged 3D video signals and The communication protocol; a shutter glasses 30, has a receiving device 301 for receiving the 3D video signals and communication protocols transmitted by the signal transmitter 12, and controlling the shutter glasses 30 to switch the left mirror 3001 and the right mirror 3003 according to the communication protocol. When viewing the 3D image, the signal transmitter 12 of the display 10 will emit a 3D video signal to the display screen 101, and alternately display the left-eye image 50 and the right-eye image 51 on the display screen 101; at the same time, the signal transmitter 12 The issued communication protocol is received by the receiving device 301 of the shutter glasses 30. Therefore, when the screen on the display screen 101 is displayed as the left-eye image 50, the communication protocol causes the left mirror 3001 of the shutter glasses 30 to be turned on (at this time, right) The mirror 3003 remains in the closed state; otherwise, when the screen on the display screen 101 is displayed as the right eye screen 51, the communication protocol causes the right mirror 3003 of the shutter glasses 30 to be opened (at this time, the left mirror 3001 remains closed); The left-eye picture 50 and the right-eye picture 51 are sequentially played alternately, and the process of turning on and off the left-mirror 3001 and the right-mirror 3003 of the shutter glasses 30 by the communication protocol is controlled, and the human eye has the characteristics of residual image and is viewed. The person has a three-dimensional effect on the picture.

Next, please refer to FIGS. 3a to 3d, which are schematic diagrams showing the display sequence of the single-screen multi-frequency synchronous 2D audio and video system of the present invention. First, as shown in Figure 3a, the foregoing The left-eye picture 50 and the right-eye picture 51 provided by the display 10 are changed to display a 2D image signal on the first channel picture 60 and another 2D image signal on the second channel picture 61, and alternate at a very fast frequency. The first channel picture 60 and the second channel picture 61 are displayed, as shown in FIG. 3b; therefore, when the viewer is watching in the naked eye, the first channel picture 60 and the second channel picture 61 are overlapped, such as Figure 3c shows. When a plurality of viewers respectively wear the shutter glasses corresponding to the first channel and the second channel, the left mirror and the right mirror of the shutter glasses can be controlled only when the first channel picture is played. Turned on (at this time, the other shutter glasses are off); when playing to the second channel, the left and right mirrors of the other shutter glasses are simultaneously turned on (at this time, the other shutter glasses are off); When the first channel picture is played, only the left mirror and the right mirror of the shutter glasses are simultaneously opened to see the picture of the first channel; and when the second channel picture is played, only the left and right mirrors of the shutter glasses are simultaneously The opener only sees the second channel, as shown in Figure 3d.

Next, the playback and viewing process of the single-screen multi-frequency synchronous 2D audio and video system of the present invention will be described in detail. Please refer to FIG. 4, which is a schematic diagram of a single-screen multi-frequency synchronous 2D audio and video system of the present invention. As shown in FIG. 4, the single-screen multi-frequency synchronous 2D audio and video system includes: a display 10 having a display screen 101 for displaying images; and a signal transmitter 12 disposed in the display 10 for playing the already arranged arrangement. The 2D video signal and the communication protocol; a multi-frequency control device 20 is connected to the display 10 by a wire 22 (or the frequency control device 20 can be built into the display 10), and the multi-frequency control device 20 has a signal editing device. The device 201 and an audio transmitting device 203; a first shutter glasses 31 having a receiving device 315 for receiving 2D video signals and communication protocols transmitted by the signal transmitter 12, and causing the first shutter glasses 31 according to a communication protocol. Simultaneously, the left mirror 3101 and the right mirror 3103 are switched; a pair of first earphones 313 are disposed on the frame 311 of the first shutter glasses 31, and the pair of first earphones 313 are received. The first sound signal 2031 emitted by the audio transmitting device 203 of the multi-frequency control device 20; a second shutter glasses 33 having a receiving device 335 for receiving the 2D video signal and the communication protocol transmitted by the signal transmitter 12, and The second shutter glasses 33 are simultaneously turned on and off the left mirror 3301 and the right mirror 3303 according to the communication protocol; the pair of second earphones 333 are disposed on the frame 331 of the second shutter glasses 33, and the second earphone 333 receives more The second audio signal 2033 transmitted by the audio transmitting device 203 of the frequency control device 20. Further, a plurality of channel switching keys 40 and 3D image switching keys 42 are disposed on the side of the first shutter glasses 31 and the second shutter glasses 33, respectively. When a plurality of people view the plurality of channels of the display 10, the video signals of the first channel picture 60 and the second channel picture 61 are alternately displayed on the display screen 101 of the display 10, and when the display picture is the first channel picture 60, The signal transmitter 12 of the display 10 emits the first channel video signal and the communication protocol, and when the first shutter glasses 31 receive the communication protocol, the left mirror 3101 and the right mirror 3103 of the first shutter glasses 31 are simultaneously turned on (this The second shutter glasses 33 also receive the communication protocol, and the communication protocol signals cause the left mirror 3301 and the right mirror 3303 of the second shutter glasses 33 to be simultaneously closed; when the display screen is played to the second channel screen 61, The signal transmitter 12 of the display 10 emits the second channel image signal and the communication protocol, and when the second shutter glasses 33 receive the communication protocol, the left mirror 3301 and the right mirror 3303 of the second shutter glasses 33 are simultaneously turned on (at this time). The first shutter glasses 31 also receive the communication protocol, and the communication protocol signal causes the left mirror 3101 and the right mirror 3103 of the first shutter glasses 31 to be simultaneously closed; and at this time, the multi-frequency control device 20 The audio transmitting device 203 transmits the first audio signal 2031 of the first channel picture 60 to the first shutter glasses 31, and transmits the second audio signal 2033 corresponding to the second channel picture 61 to the second shutter glasses 33 for viewing. You can listen to the corresponding channel sound through the headphones on the shutter glasses. The best implementation of the audio transmission of the present invention is wireless transmission, such as: Bluetooth, infrared, etc., but can also be wired, such as: Source lines, cables, etc., the present invention does not limit the manner of audio transmission.

Next, please refer to FIG. 5, which is a schematic view of the shutter glasses of the present invention. As shown in Fig. 5, firstly, a display with a screen update frequency of 120 hz is taken as an example. Under the update frequency specification, the display can provide a single person to watch a 3D video channel, or two people can simultaneously watch two different 2D images. The channel of the image; if the display with the update frequency of 240hz is taken as an example, under the specification of the update frequency, the display can provide two channels for watching two different 3D images simultaneously, or four people can watch different channels of 2D images at the same time. Or, at the same time, a single person can watch a channel of 3D images and a channel for two people to watch different 2D images; therefore, when the display screen update frequency is higher, the number of simultaneous viewers can be increased.

When the display needs to provide images of two channels, when two viewers watch at the same time, the images of the two channels to be viewed are set on the multi-frequency control device 20 (for example, first go to the following channel, then press the first channel). The multi-frequency control device 20 records the channel as the first channel; the second channel is also the same. At this time, the multi-frequency control device 20 also completes the setting of the communication protocol according to the number of the set viewing channels; then, the display 10 The signal transmitter 12 in the medium alternately displays the image of the first channel and the image of the second channel in sequence according to the setting of the multi-frequency control device 20, and simultaneously transmits the communication protocol. At this time, after each viewer wears the shutter glasses respectively, the channel to be viewed can be selected by operation; for example, when the shutter glasses are activated, the receiving device of the shutter glasses starts receiving the signal of the signal transmitter 12 in the display 10. At this time, each viewer wearing the shutter glasses can select the channel desired to watch by pressing a plurality of channel switching keys 40 on the shutter glasses; for example, the first channel is to be viewed with the first shutter glasses 31. In the case of 2D video, the channel switching button 40 can be pressed. When the first shutter glasses 31 are switched to the first channel, the signal transmitter 12 will be played when the signal transmitter 12 in the display 10 plays the image of the first channel. The left mirror 3101 and the right mirror 3103 of the first shutter glasses 31 are simultaneously turned on, and therefore, the first shutter eye is worn. The viewer of the mirror 31 can see the 2D image of the first channel.

If the viewer wants to view the 2D image of the second channel, it only needs to press the channel switching button 40 again. When the first shutter glasses 31 are switched to the second channel, the first shutter glasses 31 are based on the second channel. The communication protocol is to open or close the left mirror 3101 and the right mirror 3103 at the same time; therefore, when the signal transmitter 12 in the display 10 is playing the image to the second channel, the communication protocol will turn the left mirror 3101 of the first shutter glasses 31 and The right mirror 3103 is simultaneously turned on, so that the viewer wearing the first shutter glasses 31 can see the 2D image of the second channel.

Moreover, if the viewing channel is a 3D image, the viewer only needs to press the 3D image switching button 42 on the first shutter glasses 31, and the screen is converted into a 3D image. At this time, the first shutter glasses 31 will be The left mirror 3101 and the right mirror 3103 are turned on or off according to the communication protocol of the 3D image. The opening or closing of the left mirror and the right mirror of the shutter glasses is controlled by a communication protocol transmitted by the signal transmitter 12 of the display 10, for example, the 2D screen controls the left mirror and the right mirror to be simultaneously turned on or off; and the 3D screen will Control the left and right mirrors and the corresponding left and right eye screens to open or close.

The single-screen multi-frequency synchronous 2D and 3D audio and video system of the present invention changes the communication protocol signal transmitted by the signal transmitter 12 by configuring a multi-frequency control device 20, so that the left and right mirrors of the shutter glasses are on the corresponding channels. It will be turned on at the same time (such as the first channel), while the other channel (such as the second channel) will be turned off at the same time. In addition, it is particularly emphasized that the foregoing description mainly describes the operation of the single-screen multi-frequency synchronous 2D audio and video system, and is not limited by the screen update frequency of the display. As mentioned before, when the display screen update frequency is higher, the more viewers can be simultaneously.

Next, please refer to FIG. 6 , which is a schematic diagram of the communication protocol signal of the single-screen multi-frequency synchronous 2D and 3D audio and video system of the present invention. First, as shown in Fig. 6, the number and time interval of the high-level state of the square wave signal are divided into three types of control square wave patterns (represented by A, B, and C), wherein the square wave type A is controlled. The square wave signal is made up of three high (high) The square wave of the state is composed, the square wave width of each high state is 25us (1ms=1000us), and the low state time interval between square waves is also 25us, so the total time of controlling the square wave type A is 125us. The square wave signal controlling the square wave type B is composed of two high states, the square wave width of each high state is 25 us, and the time interval of the low state between square waves is 75 us, so the second control side of the type B The total length of the wave is 125us. The square wave signal controlling square wave type C is composed of two high states. The square wave width of each high state and the low state time interval between square waves are both 25us, so the third control square wave time length of type C is It is 75us. The type A represents that the display 10 needs to display the first channel picture 60, the type B represents that the display 10 needs to display the second channel picture 61, and the type C represents the end of each channel picture, and the next picture update is required.

Taking the time axis of FIG. 6 as an example, when the display screen update frequency is 120hz, the time for updating each display screen to the next display screen is about 8.33 ms. As shown in FIG. 6, at the beginning, the shutter glasses detect the type A of the communication protocol emitted by the signal transmitter 12; at this time, the display 10 displays the first channel picture 60, at this time, with the first The first shutter glasses 31 corresponding to the channel screen 60 simultaneously open the left mirror 3101 and the right mirror 3103, and the second shutter glasses 33 corresponding to the second channel screen 61 simultaneously close the left mirror 3301 and the right mirror 3303, so that only the wearing is performed The person of the first shutter glasses 31 can see the picture. Then, when the shutter glasses detect the type C of the communication protocol emitted by the signal transmitter 12; this means that the picture will enter the update state, so all shutter glasses will be closed accordingly. Then, when the shutter glasses detect the type B of the communication protocol emitted by the signal transmitter 12; at this time, the display screen has been updated, the display 10 will display the second channel picture 61, at this time, with the second channel picture. The corresponding second shutter glasses 33 open the left mirror 3301 and the right mirror 3303 at the same time, and the first shutter glasses 31 corresponding to the first channel screen 60 simultaneously close the left mirror 3101 and the right mirror 3103, so only the second lens is worn. The person of the shutter glasses 33 can see the picture. Then, the shutter glasses will detect the signal again. The type C of the protocol transmitted by the transmitter 12 indicates that the picture will re-enter the update state, so all shutter glasses are closed. Then it will return to the detected type A and loop.

The start time of each action (start display, stop display, update completion) is the end of the square wave signal of each control square wave type (A, B, C); that is, after detecting the detected type A after 125us, the display 10 Only after the first channel picture 60 is displayed, after 1.9ms and 75us of the type C (total 1.795ms), the picture starts to be converted, and after 6.23ms plus the type B 125us (total 6.355ms), the display 10 The second channel picture 61 is displayed, and then returns to the pattern C, and then to the pattern A loop.

The square wave signal detection method can also be applied to the 3D display. As shown in FIG. 6, during the period when the first channel picture 60 is originally displayed, the left eye picture 50 is displayed instead, and at this time, the left lens of the shutter glasses 30 is displayed. The 3001 will be turned on, and the right mirror 3003 will be turned off. Then, when the time period comes to the screen update time, the left mirror 3001 and the right mirror 3003 will be simultaneously turned off. When the time period comes to the time when the second channel picture 61 is displayed, the right eye picture 51 is displayed instead, and the left mirror 3001 of the shutter glasses 30 is turned off, and the right mirror 3003 is turned on, and then the time period will enter the picture update time again. At this time, the left mirror 3001 and the right mirror 3003 will be closed at the same time, and then return to the left eye frame loop.

It should be emphasized here that the control square wave patterns represented by the time axis are only for convenience to explain the time indicated by the present invention, and the detailed control square wave pattern may be according to the display of each brand or the shutter glasses. The invention is not limited in its scope.

Next, please refer to FIG. 7 , which is a schematic diagram of the 240hz frequency picture display mode of the present invention. As shown in Figure 7, when the display is 240hz, the display can watch two channels of different 3D images simultaneously, or four people can watch different channels of 2D images at the same time, or simultaneously watch a single person. 3D video channels and dual channels for viewing 2D video. As shown on the T1 timeline, this T1 timeline represents the channel in which four people simultaneously watch different 2D images. For, first channel (2D) → screen update → second channel (2D) → screen update → third channel (2D) → screen update → fourth channel (2D) → screen update → first channel (2D) → → In the above manner, when the first channel (2D) is played, only the left mirror and the right mirror of the corresponding shutter glasses are simultaneously turned on, and the rest of the corresponding shutter glasses are closed, and so on.

Then, as indicated by the time axis of T2, the T2 time axis indicates that two people simultaneously watch different channels of two 3D images, and the screen display mode is: first channel left eye picture (3D) → picture update → second channel left eye picture (3D) → Screen Update → First Channel Right Eye Screen (3D) → Screen Update → Second Channel Right Eye Screen (3D) → Screen Update → First Channel Left Eye Screen (3D) → → Loop; In the way, when the first channel left eye picture (3D) is played, only the left mirror of the corresponding shutter glasses will be opened, the left mirror and the right mirror of the right mirror and the rest of the corresponding shutter glasses will be closed, and so on.

Then, as indicated by the time axis of T3, the T3 time axis indicates that the channel for watching a 3D image and the channel for watching a different 2D image are displayed by the single person at the same time, and the screen display mode is the first channel left eye picture (3D). → Screen Update → Second Channel (2D) → Screen Update → First Channel Right Eye Screen (3D) → Screen Update → Third Channel (2D) → Screen Update → First Channel Left Eye Screen (3D) → → Loop; When the first channel left eye picture (3D) is played, only the left mirror of the corresponding shutter glasses will be turned on, and the rest of the corresponding shutter glasses will be closed, and in the second channel (2D) playback, only the corresponding shutter glasses will be used. The left mirror and the right mirror will be turned on at the same time, and the rest of the corresponding shutter glasses will be closed, and the third channel is also the same; therefore, it can be seen that the different channels or the left and right screens are cyclically played in an interlaced manner to achieve the update of each channel screen. The interval is relatively average. However, due to the increase in the frequency of the 240hz frequency, the high-level state of the square wave signal described in Figure 6 will also increase with the channel to increase the different types of display, such as different display screens, such as : Four channels will have four different types of square wave signals as the beginning of the channel picture, but still use the same type of square wave signal as The end of the screen (the beginning of the screen update).

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

10‧‧‧ display

12‧‧‧Signal transmitter

101‧‧‧ display screen

20‧‧‧Multi-frequency control device

22‧‧‧Wire

201‧‧‧Signal editing device

203‧‧‧Operation transmitting device

2031‧‧‧First voice signal

2033‧‧‧second voice signal

30‧‧‧Shutter glasses

301‧‧‧ receiving device

3001‧‧‧ left mirror

3003‧‧‧right mirror

31‧‧‧First shutter glasses

311‧‧‧ frames

313‧‧‧First earphone

315‧‧‧ receiving device

3101‧‧‧left mirror

3103‧‧‧Right mirror

33‧‧‧Second shutter glasses

331‧‧‧ frames

333‧‧‧second earphone

335‧‧‧ receiving device

3301‧‧‧left mirror

3303‧‧‧Right mirror

40‧‧‧channel switch button

42‧‧‧Image switch button

50‧‧‧ Left eye screen

51‧‧‧ right eye screen

60‧‧‧ first channel screen

61‧‧‧Second channel screen

Figure 1a is a schematic diagram of a 3D display technology playback screen; 1b is a 3D display technology screen playback sequence; 1c is a 3D display technology viewer naked view; 2 is a 3D imaging system of the present invention 3A is a schematic diagram of a single screen multi-frequency synchronous 2D audio and video system playing screen of the present invention; FIG. 3b is a schematic diagram of a single screen multi-frequency synchronous 2D video system playing sequence of the present invention; FIG. 3c is a view of the present invention The single-screen multi-frequency synchronous 2D audio and video system viewer naked view; the 3d picture is the single-screen multi-frequency synchronous 2D audio and video system viewer wearing shutter glasses for viewing; FIG. 4 is a single screen of the present invention Schematic diagram of a frequency-synchronized 2D video system; FIG. 5 is a schematic diagram of a shutter glasses of the present invention; and FIG. 6 is a schematic diagram of a time display screen of a single-screen multi-frequency synchronous 2D video system of the present invention; Fig. 7 is a schematic diagram showing the screen display mode of the 240hz frequency specification of the present invention.

10‧‧‧ display

12‧‧‧Signal transmitter

101‧‧‧ display screen

20‧‧‧Multi-frequency control device

22‧‧‧Wire

201‧‧‧Signal editing device

203‧‧‧Operation transmitting device

2031‧‧‧First voice signal

2033‧‧‧second voice signal

31‧‧‧First shutter glasses

311‧‧‧ frames

313‧‧‧First earphone

315‧‧‧ receiving device

3101‧‧‧left mirror

3103‧‧‧Right mirror

33‧‧‧Second shutter glasses

331‧‧‧ frames

333‧‧‧second earphone

335‧‧‧ receiving device

3301‧‧‧left mirror

3303‧‧‧Right mirror

Claims (11)

A single-screen multi-channel synchronous audio and video system includes: a multi-frequency control device having a plurality of channels and a signal editing device, the signal editing device editing a play order according to the 2D or 3D images of the plurality of channels and generating a communication protocol a signal, wherein the communication protocol signal is composed of a plurality of different image playback control signals and a picture update control signal, wherein the video playback of the channels is controlled by the different image playback control signals; Connected to the multi-frequency control device, and sequentially display at least one of the 2D or 3D images according to the playing sequence of the signal editing device; a signal transmitter is disposed in the display for outputting the communication a plurality of shutter glasses, each of the shutter glasses having a receiving device for receiving the communication protocol signal transmitted by the signal transmitter to control the opening of the left and right mirrors of the shutter glasses Or off; and a plurality of image switching keys are disposed on each of the shutter glasses. The video and audio system of claim 1, wherein the different types of video playback control signals have the same total time length of each control signal and a different number of square waves. The audio-visual system of claim 2, wherein the total length of time of the picture update control signal is different from the total length of time of the image playback control signals. The audio-visual system of claim 1, wherein the multi-frequency control device further comprises an audio transmitting device. The audio-visual system of claim 4, wherein the audio transmitting device transmits the wireless transmission or the wired transmission. The audio-visual system of claim 5, wherein each of the shutter eyes The pair of earphones are further disposed on the frame of the shutter glasses, and the pair of earphones receive the sound signal emitted by the audio transmitting device of the multi-frequency control device. The audio-visual system of claim 1, wherein the image switching key is a channel switching key. The video and audio system of claim 1, wherein the image switching key is a 3D image switching key. The video and audio system of claim 1, wherein the 2D video playback sequence of the multi-frequency control device is repeatedly displayed repeatedly by a plurality of channel pictures. The audio-visual system of claim 1, wherein the multi-frequency control device plays a sequence of two channels and alternately displays one of the left and right images of the 3D image. The audio-visual system of claim 1, wherein the control signal of the communication protocol signal is a square wave signal.