JP2012023587A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of suppressing power consumed when simultaneously projecting by a projector and displaying on a display unit provided on a device body.SOLUTION: The electronic apparatus comprises: a projection unit 46 for projecting a projected image; a display unit 20 for displaying predetermined information; a reception unit for receiving a signal transmitted by a remote controller; and a power source control unit 50 which suppresses or stops supply of a driving current to the display unit when receiving a signal by the reception unit in the case of controlling the driving current to supply to the projection unit and the display unit and driving both the projection unit and the display unit.

Description

  The present invention relates to an electronic device.

  A camera including a projector is known (for example, see Patent Document 1). In this camera, when used as a projector, an image is projected, and an image for confirmation and selection is also displayed on an LCD display section provided on the back of the camera.

JP 2005-250392 A

  However, this camera does not consider the power consumption when performing projection by the projector and displaying on the LCD display unit.

  An object of the present invention is to provide an electronic apparatus capable of suppressing power consumption when performing projection by a projector and displaying on a display unit provided in the apparatus main body.

  An electronic apparatus according to the present invention supplies a projection unit that projects a projection image, a display unit that displays predetermined information, a reception unit that receives a signal transmitted from a remote controller, and the projection unit and the display unit. A power control unit that controls driving current and suppresses or stops the supply of the driving current to the display unit when a signal is received by the receiving unit when driving both the projection unit and the display unit; It is characterized by providing.

  In addition, the electronic device according to the present invention is configured so that the projection unit that projects a projection image with the light emitted from the light source, the display unit that displays predetermined information, and both the light source and the display unit are turned on. And a power supply control unit that suppresses at least one of a light source and a driving current supplied to the display unit.

  According to the electronic device of the present invention, it is possible to suppress power consumption when performing projection by the projector and displaying on the display unit provided in the apparatus main body.

It is a perspective view which shows the front surface of the camera main body which concerns on the 1st Embodiment of this invention, and a remote control. It is a figure which shows the back surface of the camera main body which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the system configuration | structure of the camera which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the drive current control process with respect to the projection part and LCD display part of the camera which concern on the 1st Embodiment of this invention. It is a flowchart which shows the other drive current control process with respect to the projection part and LCD display part of the camera which concern on the 1st Embodiment of this invention. It is a block diagram which shows the system configuration | structure of the camera which concerns on the 2nd Embodiment of this invention.

  Hereinafter, an electronic apparatus according to a first embodiment of the present invention will be described with reference to the drawings, taking a camera as an example. FIG. 1 is a perspective view showing the front of the camera and the remote control according to the first embodiment. The camera 2 is a digital camera including a projector, and the camera 2 includes an apparatus main body 4 and a remote controller 66. On the front surface of the apparatus main body 4, there are provided a photographing window 6 for entering subject light, a projector projection window 8 for projecting an image, and a remote control receiving unit 10 for receiving a signal transmitted from a remote controller 66. Also, on the upper surface of the apparatus body 4, a release button 12 for giving a release instruction, a power switch 14, a focus lever 16 for focusing an image projected by the projector, and a switching instruction to a projector mode for projecting by the projector A projector button 18 for performing the above is provided.

  The remote controller 66 also includes a projector button 68 for instructing switching to the projector mode, an operation key 70 for instructing and selecting a projected image, and a remote control transmitter 72 for transmitting a signal based on the operation input to the apparatus body 4. It has.

  FIG. 2 is a view showing the back surface of the camera body according to the first embodiment. On the back of the apparatus main body 4, an LCD display unit 20 that displays a captured image, a menu screen, and the like, a remote control receiver 22 that receives a signal transmitted from the remote control 66, and a shooting mode that instructs switching to a shooting mode for shooting. A button 24 and a playback button 26 for instructing switching to a playback mode for displaying a captured image on the LCD display unit 20 are provided. Here, on the LCD display unit 20, a touch panel 28 composed of transparent electrodes for receiving an operation instruction such as a projection image selection instruction or a determination instruction in the projector mode and a zoom instruction in the photographing mode is disposed. .

  FIG. 3 is a block diagram illustrating a system configuration of the camera according to the first embodiment. The camera 2 includes a device main body 4 and a remote controller 66. The apparatus main body 4 includes a CPU 30. The CPU 30 includes an image sensor that includes a remote control receiving unit 10, 22, an operation unit 34, and a CCD or CMOS that captures an image of a subject and generates an image signal (analog signal as accumulated charge). 36, an image storage unit 38 for storing image data generated by A / D conversion of an image pickup signal output from the image pickup device 36 in an A / D conversion unit (not shown), a captured image, a projected image, and various data. Memory card 42 to be stored, display control unit 44 that performs display control of the LCD display unit 20, touch panel 28, projection unit 46 that projects images and various data stored in the image storage unit 38 and the memory card 42, and the apparatus body 4 A power control unit 50 is connected to supply power.

  Here, the operation unit 34 includes a release button 12, a power switch 14, a focus lever 16, a projector button 18, a shooting mode button 24, and a playback button 26, and a projection unit 46 displays an LED 52 that is a light source and an image to be projected. A projection control unit 56 that performs display control of the LCOS 54 is provided. The LCD display unit 20 includes an LCD panel 60 that displays a projected image and a backlight 62 that irradiates the LCD panel 60.

  Further, a battery 64 for supplying power is connected to the power control unit 50, and the power control unit 50 supplies power supplied from the battery 64 to the LED 52 and the backlight 62, and the device via the CPU 30. It supplies to each part of the main body 4. When an AC adapter (not shown) is connected to the apparatus main body 4 and receives power supply, the battery 64 may be charged in addition to supplying power to each part of the apparatus main body 4 via the CPU 30.

  In addition, the remote controller 66 includes a projector button 68, operation keys 70, and a remote control transmission unit 72.

  Next, a driving current control process for the LCD display unit and the projection unit at the time of projector projection of the camera according to the first embodiment will be described with reference to the flowchart shown in FIG. When the power of the apparatus main body 4 is turned on by operating the power switch 14, the power control unit 50 supplies a driving current to the backlight 62 and turns on the LCD display unit 20 (step S1). At this time, the power control unit 50 receives power from the battery 64 and supplies the maximum drive current that can be supplied to the backlight 62.

  Next, the CPU 30 determines whether or not the projector button 18 of the apparatus main body 4 has been operated (step S2). When the projector button 18 is operated, projection by the projection unit 46 is started. At this time, the power supply control unit 50 supplies a drive current that is less than the drive current that can be supplied to the LED 52, and lights the LED 52 in a dimmed state (step S3). That is, a projected image with a lower luminance is projected as compared with the case where the maximum drive current that can be supplied to the LED 52 is supplied. At this time, the power supply control unit 50 supplies the maximum drive current that can be supplied to the backlight 62, and the LCD display unit 20 is turned on without being dimmed.

  Here, if the maximum drive current that can be supplied to each of the backlight 62 and the LED 52 is supplied, the current that can be output from the battery 64 is exceeded, so the power supply control unit 50 can supply the maximum drive current that can be supplied to the LED 52. Less drive current. On the other hand, when the operation of the projector button 18 of the apparatus body 4 is not performed in step S2, the processes shown in steps S1 and S2 are repeated.

  Next, the CPU 30 determines whether or not an operation instruction using the operation key 70 of the remote controller 66 has been performed (step S4). That is, it is determined whether a signal based on an operation input using the operation key 70 is received via any one of the remote control receivers 10 and 22.

  If an operation instruction using the operation key 70 of the remote control 66 is not performed, it is determined whether or not a projection end instruction using the shooting mode button 24, the playback button 26, or the like has been performed (step S5). If no instruction is given, the processes shown in steps S3 to S5 are repeated.

  On the other hand, when a projection end instruction is given in step S5, for example, when the shooting mode button 24 is operated, the operation of the apparatus body 4 is switched to the shooting mode, so the projection process is terminated and the playback button 26 is finished. When the above operation is performed, the operation of the apparatus main body 4 is switched to the reproduction mode, and thus the projection process is terminated. Therefore, the power supply control unit 50 turns off the LED 52 by stopping the supply of the drive current to the LED 52 (step S11), and ends the drive current control process for the LED 52 and the backlight 62.

  When an operation instruction using the operation key 70 of the remote controller 66 is performed in step S4, the power supply control unit 50 turns off the LCD display unit 20 by stopping the supply of drive current to the backlight 62, and the LED 52. Is supplied with the maximum drive current that can be supplied (step S6). That is, the projection image is projected by the projection unit 46 with the maximum luminance.

  Next, the CPU 30 determines whether or not an operation instruction using the touch panel 28 has been performed (step S7). When the operation instruction using the touch panel 28 is not performed, it is determined whether or not a projection end instruction using the shooting mode button 24, the playback button 26, or the like has been performed (step S8), and the projection end instruction is performed. If not, the processes shown in steps S6 to S8 are repeated. On the other hand, when the projection end instruction is issued in step S8, the power supply control unit 50 turns off the LED 52 by stopping the supply of the drive current to the LED 52 (step S11), and the drive current control for the LED 52 and the backlight 62 is performed. The process ends.

  When an operation instruction using the touch panel 28 is performed in step S7, the power control unit 50 supplies a drive current smaller than the maximum current that can be supplied to the LED 52, and the LED 52 is lit in a dimmed state. At the same time, the maximum drive current that can be supplied to the backlight 62 is supplied, and the LCD display unit 20 is lit without dimming (step S9).

  Next, the CPU 30 determines whether or not a projection end instruction has been performed using the shooting mode button 24, the playback button 26, and the like (step S10). Return to processing. On the other hand, when a projection end instruction is given, the power supply control unit 50 stops supplying the drive current to the LED 52 to turn off the LED 52 (step S11), and ends the drive current control process for the LED 52 and the backlight 62. To do.

  Next, another drive current control process for the projection unit and the LCD display unit at the time of projector projection of the camera according to the first embodiment will be described with reference to the flowchart shown in FIG.

  When the power of the apparatus main body 4 is turned on by operating the power switch 14, the power control unit 50 supplies a driving current to the backlight 62 and turns on the LCD display unit 20 (step S21). At this time, the power control unit 50 receives power from the battery 64 and supplies the maximum drive current that can be supplied to the backlight 62.

  Next, the CPU 30 determines whether or not the projector button 68 of the remote controller 66 has been operated (step S22). That is, it is determined whether a signal indicating an instruction to switch to the projector mode is received via any of the remote control receivers 10 and 22.

  If the CPU 30 determines that the projector button 68 has been operated, it starts projection. At this time, the power supply control unit 50 turns off the LCD display unit 20 by stopping the supply of the drive current to the backlight 62 and supplies the maximum drive current that can be supplied to the LED 52 (step S23). On the other hand, when it is determined in step S22 that the projector button 68 of the remote controller 66 is not operated, the processes shown in steps S21 and S22 are repeated.

  Next, the CPU 30 determines whether or not an operation instruction using the touch panel 28 has been performed (step S24). Here, the processes shown in steps S24 to S26 are the same as the processes shown in steps S7 to S9 of the flowchart shown in FIG. If the projection end instruction is not issued in step S25, the processes shown in steps S23 and S24 are repeated. If the projection end instruction is issued, the power supply control unit 50 stops supplying the drive current to the LED 52. As a result, the LED 52 is turned off (step S31), and the drive current control process for the LED 52 and the backlight 62 is terminated.

  Next, the CPU 30 determines whether or not an operation instruction using the operation key 70 of the remote controller 66 has been performed (step S27). Here, the processes shown in steps S27 to S29 are the same as the processes shown in steps S4 to S6 shown in the flowchart of FIG. If the projection end instruction is not issued in step S28, the processes shown in steps S26 to S28 are repeated. If the projection end instruction is issued, the power supply control unit 50 stops supplying the drive current to the LED 52. As a result, the LED 52 is turned off (step S31), and the drive current control process for the LED 52 and the backlight 62 is terminated.

  Next, the CPU 30 determines whether or not a projection end instruction using the shooting mode button 24, the playback button 26, or the like has been performed (step S30). Return to processing. On the other hand, when a projection end instruction is issued, the power supply control unit 50 stops supplying the drive current to the LED 52 to turn off the LED 52 (step S31), and ends the drive current control process for the LED 52 and the backlight 62. To do.

  According to the camera of the present embodiment, it is possible to suppress power consumption when performing projection with a projector and displaying on a display unit provided in the main body. Therefore, the battery life can be extended when power is supplied from the battery.

  In this case, even when the operation is performed using the touch panel when projecting the projector, the driving current is smaller than the total driving current that can be supplied to each of the LED and the battery. In order to supply, it can control so that the output possible current of a battery may not be exceeded. Therefore, an excessive burden on the battery can be prevented. Further, heat generation can be suppressed as compared with the case where the maximum drive current that can be supplied to the LED and the backlight is supplied.

  In addition, when performing an operation using a remote controller, it is considered that display on the LCD display unit is unnecessary, so the LCD display unit is turned off and the maximum drive current that can be supplied to the LED of the projection unit is supplied. Projection images with high brightness can be projected.

  In the above-described embodiment, the configuration is described in which the projection end instruction is performed using the shooting mode button 24 and the playback button 26 of the apparatus body 4. However, the projection ends when a predetermined operation is performed on the remote controller 66. It may be configured to give an instruction.

  Further, in the above-described embodiment, the LED 52 of the projection unit 46 is turned on in the dimmed state in the processing shown in steps S3, S9 of FIG. 4 and step S26 of FIG. 5, and the backlight 62 of the LCD display unit 20 is turned on. However, the LED 52 and the backlight 62 may be lit in a dimmed state, or the LED 52 may be lit without being dimmed and the backlight 62 may be dimmed. It is good also as a structure which lights in a state.

  In the above-described embodiment, in the processing shown in step S6 in FIG. 4 and steps S23 and S29 in FIG. 5, the power control unit 50 turns off the backlight 62 of the LCD display unit 20 and The configuration in which the LED 52 is turned on without being dimmed by supplying the maximum drive current that can be supplied to the LED 52 has been described, but the power supply control unit 50 is turned on with the backlight 62 dimmed, and the LED 52 is turned on. Alternatively, the LED 52 may be lit without being dimmed by supplying the maximum drive current that can be supplied.

  In the above-described embodiment, the drive current control process for the projection unit 46 and the LCD display unit 20 in the case of receiving power supply from the battery 64 has been described. However, an AC adapter is connected to the apparatus body 4 to supply power. 4 and 5 may be performed, or the power supply control unit 50 may supply the maximum drive current that can be supplied to each of the LED 52 and the backlight 62. Good.

  Next, a camera according to a second embodiment of the present invention will be described. In the camera according to the second embodiment, the projection unit is deleted from the main body of the camera according to the first embodiment, and a release button is added to the remote controller. Therefore, a detailed description of the same configuration as that of the first embodiment is omitted, and only different portions will be described in detail. Further, the same components as those in the first embodiment will be described with the same reference numerals.

  FIG. 6 is a block diagram illustrating a system configuration of a camera according to the second embodiment. The camera 2 includes a device main body 4 and a remote controller 66. The apparatus main body 4 includes a CPU 30. The CPU 30 includes a remote control receiving unit 10 provided on the front surface of the apparatus main body 4, a remote control receiving unit 22 provided on the back surface of the apparatus main body 4, an operation unit 34, an image storage unit 38, a memory. A display control unit 44 that performs display control of the card 42 and the LCD panel 60 and a power supply control unit 50 are connected.

  Here, the operation unit 34 includes a release button 12, a power switch 14, a shooting mode button 24, and a playback button 26. The LCD display unit 20 includes an LCD panel 60 and a backlight 62 for displaying a through image and a menu screen. I have. Further, a battery 64 is connected to the power supply control unit 50, and the power supply control unit 50 supplies power supplied from the battery 64 to the backlight 62 and also supplies each part of the apparatus main body 4 via the CPU 30. To do.

  In addition, the remote controller 66 includes a remote control transmitter 72 and a release button 74 for giving a release instruction in the shooting mode.

  Next, a drive current control process for the backlight in photographing using the remote controller of the camera according to the second embodiment will be described. When the apparatus body 4 is turned on by operating the power switch 14, the camera 2 is activated as a photographing mode. Further, the power control unit 50 supplies a driving current to the backlight 62 and turns on the LCD display unit 20. At this time, the power control unit 50 receives power from the battery 64 and supplies the maximum drive current that can be supplied to the backlight 62.

  Next, when a signal transmitted from the remote control 66 is received in the shooting mode, the CPU 4 determines whether the signal is received via the remote control receiving unit 10 or the remote control receiving unit 22.

  When a signal is received by the remote control receiving unit 10 provided on the front surface of the apparatus body 4, the user cannot confirm a through image displayed on the LCD display unit 20 located on the front surface side of the apparatus body 4. The control unit 50 stops supplying power to the backlight 62 and turns off the LCD display unit 20.

  On the other hand, when a signal is received by the remote control receiving unit 22 provided on the back side of the apparatus main body 4, the user confirms a through image displayed on the LCD display unit 20 located on the back side of the apparatus main body 4. Since it is possible, the power supply control unit 50 maintains the supply of drive current to the backlight 62. That is, the maximum drive current that can be supplied to the backlight 62 is supplied.

  According to the camera according to the present embodiment, the power consumption can be suppressed because the LCD display unit is turned off when it is not necessary to check the through image displayed on the LCD display unit.

  In the above-described second embodiment, the LCD display unit 20 is turned off when it is received via the remote control light receiving unit 10 provided on the front surface of the apparatus body 4. The LCD display unit 20 may be turned on in a dimmed state by supplying a drive current smaller than the maximum drive current that can be supplied to the backlight 62.

  In the second embodiment described above, the apparatus main body 4 has been described as a configuration that does not include a projection unit. However, the apparatus main body 4 may include a projection unit. In this case, the remote control 66 may include a projector button.

  In each of the above-described embodiments, the configuration in which the LCD display unit 20 is provided on the back surface of the apparatus main body 4 has been described, but a configuration in which an organic EL display is provided instead of the LCD display unit 20 may be employed.

DESCRIPTION OF SYMBOLS 2 ... Camera, 4 ... Apparatus main body 10,22 ... Remote control receiving part, 18 ... Projector button, 20 ... LCD display part, 28 ... Touch panel, 46 ... Projection part, 50 ... Power supply control part, 52 ... LED, 62 ... Back Light, 64 ... battery, 66 ... remote control, 68 ... projector button, 72 ... remote control transmitter

Claims (10)

A projection unit for projecting projected images;
A display unit for displaying predetermined information;
A receiving unit for receiving a signal transmitted by the remote control;
When the drive current supplied to the projection unit and the display unit is controlled to drive both the projection unit and the display unit, the drive current to the display unit is received when a signal is received by the reception unit. An electronic device comprising: a power control unit that suppresses or stops supply.   The electronic apparatus according to claim 1, further comprising an imaging unit that images a subject. A projection unit that projects a projected image by light emitted from a light source;
A display unit for displaying predetermined information;
An electronic apparatus comprising: a power control unit that suppresses at least one of a drive current supplied to the light source and the display unit when both the light source and the display unit are turned on. A receiving unit for receiving a signal transmitted by the remote control;
The electronic device according to claim 3, wherein the power control unit suppresses or stops the supply of the driving current to the display unit when a signal is received by the receiving unit.   The electronic apparatus according to claim 3, further comprising an imaging unit that images a subject. A first receiving unit arranged on the front surface of the apparatus main body for receiving a signal transmitted from a remote controller and a second receiving unit arranged on the rear side of the apparatus main body for receiving the signal;
The display unit is disposed on the back of the apparatus body,
The power supply control unit suppresses or stops the supply of the driving current to the display unit when the signal is received by the first receiving unit in an imaging mode in which imaging is performed using the imaging unit, 6. The electronic apparatus according to claim 5, wherein when the signal is received by the second receiving unit, the supply of the driving current to the display unit is maintained.   The power supply control unit suppresses the supply of the drive current to the display unit when the signal is received by the first receiving unit or the second receiving unit in the projection mode in which the projection unit performs projection. The electronic apparatus according to claim 6, wherein the electronic apparatus is stopped.   The electronic apparatus according to claim 1, further comprising an operation unit configured by a touch panel that is stacked on the display unit.   When the operation unit constituted by the touch panel is operated in a state where the supply of the drive current to the display unit is stopped, the power supply control unit supplies the drive current to the display unit. The electronic device according to any one of claims 1 to 8.   The electronic device according to claim 1, wherein the power supply control unit controls the drive current using a power supply supplied from a battery.

Images