JP2012068442A - Image display device and method of controlling image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device which is capable of setting an operation to be invalid or valid without any particular setting change operation or the like performed by a user.SOLUTION: An image display device (e.g., projector) 100 controllable by an external information processing apparatus 200 includes: an operation section (e.g., operation panel) 111 for receiving an operation to the image display device 100; a communication section (communication I/F section) 114 for communicating with the information processing apparatus 200; an operation information notification section 117 for notifying the information processing apparatus 200 of operation information indicating contents of the operation via the communication section 114; and a control section 116 for determining whether the operation is invalid or valid based on a response of the information processing apparatus 200 to the operation information and invalidating or validating the operation on the basis of a determined result.

Description

  The present invention relates to an image display apparatus that can be controlled by an information processing apparatus such as a personal computer (hereinafter also referred to as “PC”) and a control method for the image display apparatus.

  Connect the image display device (which will be described below using a projector as an example) to an information processing device (which will be described using a PC as an example) via a serial cable, etc. There is known a projector capable of setting a state in which various controls such as input switching of the projector can be performed on the PC side.

  In such a projector, when the projector can be controlled by a PC, operations on a remote controller (hereinafter also referred to as “remote controller”) provided as an accessory of the projector and the projector It is preferable to have a function of invalidating the operation on the operation panel provided in the main body. As described above, various projectors having a function of invalidating the operation on the remote controller and the operation on the operation panel have been proposed (see, for example, Patent Document 1).

  The projector described in Patent Document 1 has a remote control number switching function, and performs setting change operations such as switching the remote control number to a number different from the registered number when invalidating the operation on the remote control. Therefore, the operation on the remote controller can be invalidated. In addition, even when the operation on the operation panel is invalidated, the operation on the operation panel can be invalidated by the user changing the setting for invalidating the operation. Thereby, for example, when the projector can be controlled by the PC, the operation on the remote controller and the operation on the operation panel can be invalidated.

  In the following, except for the case where the operation on the remote control and the operation on the operation panel are individually described, the operation on the remote control and the operation on the operation panel are respectively referred to as “operation on the operation unit”. Alternatively, it may be simply expressed as “operation”.

JP 2009-239720 A

  In the projector described in Patent Document 1, when the operation on the operation unit is invalidated, the user needs to change the setting for invalidating the operation each time. For this reason, if you forget to change the setting to invalidate the operation even in situations where the operation should be invalidated, such as when the projector can be controlled by a PC As a result, there is a problem that the projector is controlled by the operation of the operation unit. On the other hand, if the user wants to validate the operation when the operation is invalid, the user must change the setting for validating the operation each time.

  As described above, in the projector described in Patent Document 1, it is necessary to perform setting for invalidating or validating the operation in the operation unit each time. In particular, it is troublesome to make such a setting each time during a presentation or the like, and there is a problem that a smooth presentation cannot be performed due to forgetting to set.

  SUMMARY An advantage of some aspects of the invention is that it provides an image display device and a control method for the image display device that can invalidate or enable an operation on an operation unit without a special setting change.

  An image display device of the present invention is an image display device that can be controlled by an external information processing device, an operation unit that receives an operation on the image display device, a communication unit that communicates with the information processing device, and the communication unit The operation information notifying unit for notifying the information processing device of operation information indicating the content of the operation via the operation information, and the operation is invalid or valid based on the response of the information processing device to the operation information And a control unit that invalidates or validates the operation based on the determined result.

  According to the image display device of the present invention, when an operation on the operation unit is performed in a state where the image display device can be controlled by the information processing device, it is determined whether the operation is invalid or valid. However, since the operation is invalidated or validated based on the determination result, the image display device is controlled by the operation of the operation unit in a state where the image display device can be controlled by the information processing device. Can be prevented. Even in a state where the image display apparatus can be controlled by the information processing apparatus, the operation can be validated depending on the situation. In addition, since the setting for invalidating or validating the operation is automatically performed on the image display device side, it is not necessary for the user to make a special setting change. As a result, for example, in a presentation or the like, it is not necessary to make a setting for invalidating or validating an operation each time, and a smooth presentation is possible.

In the image display device according to the aspect of the invention, when the control unit receives a control signal from the information processing device in a state where the control unit is not controllable by the information processing device, the control unit sets the state to be controllable by the information processing device. It is preferable to set for this.
Accordingly, it is possible to automatically perform setting for enabling the image display apparatus to be controlled by the information processing apparatus, and it is not necessary for the user to perform such setting each time.

In the image display device of the present invention, the control unit transmits a signal for requesting permission for the operation to the information processing device, and within a predetermined time after transmission of the signal for requesting permission for the operation. In addition, it is preferable to invalidate the operation when a control signal is received from the information processing apparatus.
Thereby, priority can be given to control by the control signal from the information processing apparatus, and it is possible to prevent the operation at the operation unit from becoming effective when control by the control signal from the information processing apparatus is performed. be able to.

  In the image display device of the present invention, the control unit transmits a signal for requesting permission for the operation to the information processing device, and within a predetermined time after transmission of the signal for requesting permission for the operation. In addition, when a signal prohibiting the operation is received from the information processing apparatus, the operation is preferably invalidated.

  Also by doing so, priority can be given to control by a control signal from the information processing apparatus. Note that the situation in which a signal prohibiting an operation is received can be exemplified by a case where a process corresponding to a control signal from the information processing apparatus is being executed.

  In the image display device of the present invention, the control unit transmits a signal for requesting permission for the operation to the information processing device, and within a predetermined time after transmission of the signal for requesting permission for the operation. In addition, when a signal permitting the operation is received from the information processing apparatus, it is preferable to validate the operation on the operation unit.

  As a result, even when the image display apparatus can be controlled by the information processing apparatus, the operation on the operation unit can be validated. Examples of such situations include situations where the information processing apparatus does not actually control the image display apparatus when the information display apparatus can control the image display apparatus. can do. In such a situation, the operation is valid.

  In the image display device of the present invention, the control unit transmits a signal for requesting permission for the operation to the information processing device, and within a predetermined time after transmission of the signal for requesting permission for the operation. In addition, when there is no response from the information processing apparatus, it is preferable to validate the operation.

  Also in this case, when the image display apparatus can be controlled by the information processing apparatus, the operation on the operation unit can be validated. As such a situation, a situation in which a program for controlling the image display apparatus on the information processing apparatus side cannot be executed for some reason can be exemplified. In such a situation, the operation is valid.

  An image display apparatus control method according to the present invention is an image display apparatus control method that can be controlled by an external information processing apparatus, and includes a step of accepting an operation on the image display apparatus, and operation information indicating a content of the operation. Notifying the information processing device and determining whether the operation is invalid or valid based on the response of the information processing device to the operation information, and invalidating the operation based on the determined result Or a step of enabling.

  Also in the control method of the image display device of the present invention, the same effect as that of the image display device of the present invention can be obtained. Note that the control method for the image display device of the present invention preferably has the characteristics of the image display device of the present invention.

The figure shown in order to demonstrate the structure of the image display system 10 which concerns on embodiment. FIG. 2 is a diagram illustrating a configuration of a projector 100 according to an embodiment. The figure which shows the structure of the image projection part 101 shown in FIG. 7 is a flowchart for explaining external control mode setting processing by an external control mode setting function of the control unit. 7 is a flowchart for explaining operation invalidation / validity setting processing by an operation invalidity / validity setting function included in the control unit 116;

  Hereinafter, embodiments of the present invention will be described. In the embodiment described below, the image display device is described as a projector.

  FIG. 1 is a diagram for explaining the configuration of an image display system 10 according to the embodiment. As shown in FIG. 1, the image display system 10 according to the embodiment connects a projector 100 as an image display device, a PC (personal computer) 200 as an information processing device, and the projector 100 and the PC 200 to connect the projector 100. And a communication cable 300 for performing communication between the PC 200 and the PC 200. The communication cable 300 is connected so that the projector 100 and the PC 200 can communicate bidirectionally, and an HDMI (High Definition Multimedia interface) cable or the like can be used.

  In the image display system 10 configured as described above, the projector 100 is operated by an operation on the remote controller 110 provided as an accessory of the projector 100 or an operation on the operation panel 111 provided in the main body of the projector 100. Various controls such as power on / off and input switching can be performed.

  The PC 200 includes a projector control unit 210 that controls the projector 100. The projector control unit 210 has a control program for controlling the projector 100. As a result, various controls such as turning on / off the power of the projector 100 and switching the input of the projector 100 can be performed on the PC 200 side.

  FIG. 2 is a diagram illustrating a configuration of the projector 100 according to the embodiment. As shown in FIG. 2, the projector 100 according to the embodiment includes an image projection unit 101, a timer 102, a power supply unit 103 that is connected to a commercial power supply and supplies power for operating the projector 100 to each unit, and an external An input switching unit 104 that switches input to select image data (including audio data) designated by the user from among a plurality of image data from the connected device 400, and an image selected by the input switching unit 104 An image data processing unit 105 that processes data, an image data output unit 106 that outputs image data processed by the image data processing unit 105 to the image projection unit 101, and audio data processed by the image data processing unit 105 An audio data output unit 107 that outputs to an output unit (speaker) 108; A remote control control signal receiving unit 112 that receives a remote control signal corresponding to an operation on the microcomputer 110, and an operation indicating the content of the operation on the remote control 110 or the operation panel 111 provided in the projector 100 main body. An operation information output unit 113 that outputs information, a communication interface unit (communication I / F unit) 114 as a communication unit that enables two-way communication with the PC 200, and a control signal (referred to as an external control signal) from the PC 200 ) Via the communication I / F unit 114, a control unit 116 that performs various controls described later, and the operation information to the PC 200 via the communication I / F unit 114. And an operation information notification unit 117. The remote controller 110 and the operation panel 111 correspond to the operation unit in the present invention.

  The control unit 116 includes a control function for performing various controls such as turning on / off the power of the projector 100 and switching the input of the projector 100, a function for setting the projector 100 to an external control mode state (referred to as an external control mode setting function), When the operation information is detected in the external control mode state, it is determined whether the operation on the remote controller 110 or the operation on the operation panel 111 is invalid or valid, and on the remote controller 110 based on the result of the determination. And a function for invalidating or validating the operation on the operation panel 111 (referred to as an operation invalidation / validation setting function). Among these functions, the external control mode setting function and the operation invalid / valid setting function will be described later. The external control mode state is a state in which the projector 100 can be controlled by an external device (in this case, the PC 200) connected to the projector 100.

  FIG. 3 is a diagram showing the configuration of the image projection unit 101 shown in FIG. As shown in FIG. 3, the image projection unit 101 includes a light source 510 that emits light including red light, green light, and blue light, a lens array 520, a superimposing lens 530, an image forming unit 540, and a projection lens 550. With.

The image forming unit 540 is separated by a first dichroic mirror 541 that separates light emitted from the light source 510 into red light (R), green light (G), and blue light (B), and a first dichroic mirror 541. The second dichroic mirror 542 that separates the green light and the blue light into the green light and the blue light, and the red light, the green light, and the blue light based on the image data output from the image data output unit 106 shown in FIG. The light modulation element 543R for red light, the light modulation element 543G for green light, the light modulation element 543B for blue light, and the red light transmitted through the first dichroic mirror 541 are guided to the light modulation element 543R. The first relay lens 545 and the first reflection mirror 546 that guide blue light transmitted through the reflection mirror 544 and the second dichroic mirror 542 to the light modulation element 543B. A second relay lens 547 and the second reflecting mirror 548, the light modulation element 543R, 543 g, and a cross dichroic prism 549 to form a color image light by synthesizing the image light by the color light modulated by the at 543B.
The projection lens 550 enlarges and projects the color image light synthesized by the cross dichroic prism 549 onto the screen SCR.

  Next, the operation of the projector 100 according to the embodiment will be described. The projector 100 is capable of bidirectional communication with the PC 200, and shifts to the external control mode state by an external control signal from the PC 200. When the projector 100 is in the external control mode, various controls such as turning on / off the projector 100 and switching the input can be performed on the PC 200 side.

  FIG. 4 is a flowchart for explaining external control mode setting processing by the external control mode setting function of the control unit 116. First, when an external control signal is received from the PC 200 (step S1), processing corresponding to the external control signal is executed (step S2), and a flag indicating an external control mode state (referred to as an external control mode flag) Is turned on (step S3).

  In FIG. 4, the order of executing the process corresponding to the external control signal (step S2) and turning on the external control mode flag (step S3) may be as shown in FIG. The reverse or simultaneous may be used.

  FIG. 5 is a flowchart for explaining operation invalidation / validity setting processing by the operation invalidity / validity setting function of the control unit 116. The operation invalid / valid setting process shown in FIG. 5 is executed based on an operation invalid / valid setting process program.

  First, when an operation is performed on the remote controller 110 or the operation panel 111, operation information is output from the operation information output unit 113. Here, when the control unit 116 detects the operation information (step S11), it is determined whether or not the external control mode state is set, that is, whether or not the external control mode flag is ON (step S12). At this time, if the external control mode state (external control mode flag is ON), the timer 102 is started (step S13), and a signal for requesting the operation permission to the PC 200 (referred to as an operation permission request signal). Transmit (step S14).

  The timer 102 is set to output a predetermined time elapsed signal when a predetermined time is measured. Further, the order of the timer start (step S13) and the transmission of the operation permission request signal (step S14) in FIG. 5 may be the order as shown in FIG. 5, or vice versa. .

  And it is determined whether the external control signal from PC200 was received (step S15). This external control signal is an external control signal (referred to as a new external control signal) different from the external control signal (see step S1 in FIG. 4) when the projector 100 is in the external control mode state. At this time, the predetermined time elapsed signal has not yet been output from the timer 102, and this is referred to as within the predetermined time.

  If it is determined in step S15 that a new external control signal has been received (“Yes” in step S15), processing corresponding to the new external control signal is executed (step S16). The valid setting processing program is terminated.

  Thus, when an operation is performed in the external control mode state, an operation permission request signal is transmitted to the PC 200, and a new external control signal is received from the PC 200 within a predetermined time after the operation permission request signal is transmitted. First, the process corresponding to the external control signal is preferentially executed, and then the operation invalid / valid setting process program is terminated. For this reason, the process corresponding to the operation is not executed, and the operation becomes invalid.

  On the other hand, as a result of determining whether or not a new external control signal has been received in step S15, if no new external control signal has been received (in the case of “No” in step S15), a signal for prohibiting the operation. It is determined whether or not an operation prohibition signal has been received (step S17). If an operation prohibition signal has been received (“Yes” in step S17), the operation invalidation / validity setting processing program is terminated. To do. At this time, the predetermined time elapsed signal is not yet output from the timer 102, that is, within a predetermined time.

  As described above, when the operation prohibition signal is received from the PC 200 within a predetermined time after the transmission of the operation permission request signal, the operation invalidation / validity setting processing program is terminated. For this reason, the process corresponding to the operation is not executed, and the operation becomes invalid. The situation where the operation prohibition signal is output from the PC 200 can be exemplified by the case where the execution of the process based on the already received external control signal is continued.

  On the other hand, as a result of determining whether or not the operation prohibition signal has been received in step S17, if the operation prohibition signal has not been received (in the case of “No” in step S17), an operation permission signal (operation permission signal). Is determined (step S18). At this time, the predetermined time elapsed signal is not yet output from the timer 102, that is, within a predetermined time.

  Here, when the operation permission signal is received (in the case of “Yes” in step S18), the external control mode flag is turned off (step S20), the operation is validated and the process corresponding to the operation is executed (step S21). After that, the operation invalid / valid setting processing program is terminated.

  As described above, when the operation permission signal is received from the PC 200 within a predetermined time after the transmission of the operation permission request signal, the operation becomes valid and processing corresponding to the operation is executed. An example of the situation where the operation permission signal is output from the PC 200 is a case where the PC 100 is not actually performing external control on the projector 100 even when the projector 100 is in the external control mode. can do.

  On the other hand, as a result of determining whether or not the operation permission signal is received in step S18, if the operation permission signal is not received (in the case of “No” in step S18), a predetermined time elapsed signal is output from the timer 102. It is determined whether or not a predetermined time has elapsed (step S19). Then, as a result of determining whether or not the predetermined time has elapsed, when the predetermined time has elapsed, the external control mode flag is turned off (step S20), and the operation is validated and the process corresponding to the operation is executed (step S20). After S21), the operation invalid / valid setting processing program is terminated. This is a case where there is no response from the PC 200 even after a predetermined time has elapsed after transmission of the operation permission signal. In such a case, the operation is validated and processing corresponding to the operation is executed.

  Note that, after the operation permission signal is transmitted, the PC 200 does not respond even after a predetermined time has elapsed, for example, when the control program for controlling the projector 100 in the PC 200 cannot be executed for some reason. Can be illustrated.

  By the way, in step S12, when it is not in the external control mode state (in the case of “No” in step S12), the operation is validated and processing corresponding to the operation is executed (step S21).

  By performing the operation invalidation / validation setting process as described above, it is possible to prevent the operation on the operation unit from becoming valid when the projector 100 is in the external control mode. Even when the projector 100 is in the external control mode, the operation can be validated depending on the situation. Such operation invalidation / validation setting processing is performed automatically by the control unit 116, so that when the image display apparatus is in the external control mode, the user does not perform any special setting change. The operation can be disabled or enabled.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the following modifications (1) to (4) are possible.
(1) In the above embodiment, the case where the image display device is a projector has been exemplified, but a direct-view image display device may be used.
(2) In the above-described embodiment, the case where data transmission / reception between the projector 100 and the PC 200 is performed by the wired system using the communication cable 300 is illustrated, but the wired system may be used instead of the wired system.
(3) The light source 510 (see FIG. 3) of the projector 100 may be a discharge-type light source such as a xenon lamp or an ultra-high pressure mercury lamp, or a solid light source such as an LED (Light Emitting Diode) light source or a laser, Alternatively, other light sources can be used.
(4) In the above embodiment, a case where a transmissive liquid crystal light valve (light modulation elements 543R, 543G, 543B) is used as the light modulation element is exemplified, but instead of this, a reflection type liquid crystal light valve or the like is used. It is also possible to use a type of light modulation element. In addition, by controlling the emission direction of incident light for each micromirror as a pixel, a micromirror array device that modulates light emitted from a light source can be used as a light modulation element.

  DESCRIPTION OF SYMBOLS 10 ... Image display system, 100 ... Projector (image display apparatus), 110 ... Remote control (operation part), 111 ... Operation panel (operation part), 114 ... Communication I / F part ( Communication unit), 116 ... control unit, 117 ... operation information notification unit, 200 ... PC (information processing device), 300 ... communication cable

Claims (7)

An image display device that can be controlled by an external information processing device,
An operation unit that receives an operation on the image display device;
A communication unit that communicates with the information processing apparatus;
An operation information notification unit for notifying the information processing apparatus of operation information indicating the content of the operation via the communication unit;
A control unit that determines whether the operation is invalid or valid based on a response of the information processing apparatus to the operation information, and invalidates or validates the operation based on the determined result;
An image display device comprising: The image display device according to claim 1,
When the control unit receives a control signal from the information processing apparatus in a state that is not controllable by the information processing apparatus, the control unit performs setting for setting the controllable state by the information processing apparatus. An image display device. The image display device according to claim 1 or 2,
The control unit transmits a signal for requesting permission for the operation to the information processing apparatus, and performs control from the information processing apparatus within a predetermined time after transmission of the signal for requesting permission for the operation. An image display device characterized by invalidating the operation when a signal is received. The image display device according to claim 1 or 2,
The control unit transmits a signal for requesting permission for the operation to the information processing apparatus, and the operation is performed from the information processing apparatus within a predetermined time after transmission of the signal for requesting permission for the operation. The image display device is characterized in that the operation is invalidated when a signal prohibiting the operation is received. The image display device according to claim 1 or 2,
The control unit transmits a signal for requesting permission for the operation to the information processing apparatus, and the operation is performed from the information processing apparatus within a predetermined time after transmission of the signal for requesting permission for the operation. The image display device is characterized in that the operation is validated when a signal permitting the operation is received. The image display device according to claim 1 or 2,
The control unit transmits a signal for requesting permission for the operation to the information processing device, and a response is received from the information processing device within a predetermined time after transmission of the signal for requesting permission for the operation. If not, the image display device is characterized in that the operation is validated. An image display device control method that can be controlled by an external information processing device,
Receiving an operation on the image display device;
Notifying the information processing apparatus of operation information indicating the content of the operation;
Determining whether the operation is invalid or valid based on a response of the information processing apparatus to the operation information, and invalidating or validating the operation based on the determined result;
A control method for an image display device, comprising:

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