JP2015060574A - Projection system and operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of a projection system performing projection by using a plurality of projection devices when a user operates a terminal device to control the projection devices.SOLUTION: When an explainer directs the apical surface of a pointer to any of screens, flicker is detected. An operation device proceeds processing from step S202 to step S203, analyzes the flicker to detect the frequency of the flicker, and determines the names of a PC and PJ from the detected frequency (step S204). The operation device transmits, to a personal computer PC to which the projector PJ determined in the processing of step S204 is connected, desired operation and the name of the PJ (the name of the determined projector PJ) (step S205). The desired operation is the operation designated by the explainer by operating buttons provided on the pointer including, for example, switching from an image currently projected and displayed to another image.

Description

  The present invention relates to a projection system and an operation device used in the projection system and operated by an instructor who gives a presentation.

  Conventionally, a projection system in which a projector and a personal computer are wirelessly connected has been proposed (for example, see Patent Document 1 below). By using this system, an image displayed on a liquid crystal screen of a personal computer can be projected on the screen by a projector. Therefore, the presenter can make a presentation while switching and changing the projected image on the screen by operating the personal computer.

  In addition, presentation is also performed by using a laser pointer and displaying a laser cursor made of laser spot light on the screen (see, for example, Patent Document 2 below). Furthermore, today, a plurality of screens are arranged at the venue, and a projector and a personal computer are arranged for each screen, and a presentation is given while projecting different images for each screen. According to such a presentation format, it is possible to advance the presentation while comparing the contents of the images projected on the plurality of screens.

JP 2000-222163 A Japanese Patent Laid-Open No. 2001-125738

  When a projector is used to project and display different images, a description will be given while sequentially switching the projected images. Therefore, the presenter needs to move to the place where the personal computer corresponding to the projector displaying the image to be switched is placed, operate the personal computer, and perform an operation of switching the image displayed on the liquid crystal screen.

  Therefore, the smooth progress and explanation of the presentation are hindered due to the time lag associated with the movement of the presenter that occurs at the time of image switching and the movement of the presenter entering the visual perception of the viewer receiving the explanation. Further, when controlling a projector by operating a personal computer as well as at the time of image switching, the presenter must move to a place where the personal computer is placed and operate the personal computer, and the same problem occurs. .

  The present invention has been made in view of such a conventional problem, and in a projection system that performs projection using a plurality of projection apparatuses, the operability when a user operates a terminal apparatus to control the projection apparatus is improved. It is an object of the present invention to provide a projection system and an operation device.

  In order to solve the above-described problem, a projection system according to an invention is a display system including a plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device having an operation unit. The device, based on the display by the display device, specifies a terminal device corresponding to the display device, and transmits a request signal corresponding to the operation of the operation device to the terminal device specified by the specifying device And receiving means for receiving the request signal transmitted from the transmitting means of the operating device, and control means for controlling the corresponding display device in response to the request signal received by the receiving means. It is characterized by providing.

  The operation device according to the present invention includes a plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device, and the terminal device is transmitted from a transmission unit of the operation device. An operation device in a display system, comprising: a receiving means for receiving a request signal to be received; and a control means for controlling the corresponding display device in response to the request signal received by the receiving means. A specifying unit that specifies a terminal device corresponding to the display device based on a display by the device, and a transmission unit that transmits a request signal corresponding to the operation of the operation unit to the terminal device specified by the specifying unit. It is characterized by.

  According to the present invention, in a projection system that performs projection while selectively operating a plurality of terminal devices to control a corresponding projection device, it is possible to improve operability when a user controls a desired projection device. it can.

1 is a block diagram showing an overall configuration of a presentation system according to an embodiment of the present invention. It is a block diagram which shows the circuit structure of a projector. It is a block diagram which shows the circuit structure of a personal computer. It is a block diagram which shows the external appearance structure of a pointer. It is a block diagram which shows the circuit structure of a pointer. It is a series of general flowcharts showing the operations of the pointer, personal computer, and projector. It is a flowchart which shows the process sequence of a pointer. It is a flowchart which shows the process sequence of a personal computer.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a presentation system according to an embodiment of the present invention. This presentation system includes a plurality of projectors PJA, PJB, PJC, and PJC (which will be collectively referred to as a projector PJ when these projectors are collectively referred to) disposed in the venue, and a USB cable 100 connected to each projector PJ. A plurality of personal computers PCA, PCB, PCC connected to each other (referred to as a personal computer PC when these plural personal computers are collectively referred to), and proximity to the plurality of personal computers PC such as Bluetooth (registered trademark) It consists of a single pointer PT connected wirelessly. The personal computers PCA and PCB are connected to one corresponding projector PJA, PJB, while the personal computer PCC is connected to two projectors PJC and PJD. Also, corresponding screens SA to SC are arranged in front of each projector PJ.

  FIG. 2 is a block diagram showing a circuit configuration of the projector PJ. The projector PJ includes a control unit 11, an input / output interface 12, an image conversion unit 13, a display encoder 14, a display drive unit 15, and the like. The image signals of various standards input from the input / output connector unit 16 are converted through the input / output interface 12 and the system bus 17 so as to be unified into image signals of a predetermined format suitable for display by the image conversion unit 13. Thereafter, it is sent to the display encoder 14.

  A personal computer PC is connected to the input / output connector section 16 via the USB cable 100. A predetermined standard image signal from the personal computer PC input through the input / output connector section 16 and the input / output interface 12 is also unified into a predetermined format image signal suitable for display by the image conversion section 13 via the system bus 17. Then, it is sent to the display encoder 14.

  The display encoder 14 develops and stores the transmitted image signal in the video RAM 18, generates a video signal from the stored contents of the video RAM 18, and outputs the video signal to the display driving unit 15.

  The display driving unit 15 to which the video signal is input from the display encoder 14 drives the display element 19 which is a spatial light modulation element (SOM) at an appropriate frame rate in accordance with the transmitted image signal. Then, the light beam emitted from the mercury lamp 20 used as the light source device in the present embodiment is incident on the display element 19 through the light source side optical system, thereby forming an optical image with the reflected light of the display element 19. Then, an image is projected and displayed on the screens SA to SD via the movable lens group 21 serving as a projection side optical system. The movable lens group 21 of the projection side optical system is driven by a lens motor 22 for zoom adjustment and focus adjustment.

  The image compression / decompression unit 23 performs recording processing for compressing the luminance signal and the color difference signal in the image signal by processing such as ADTC and Huffman coding, and writing the data onto a memory card 24 that is a detachable recording medium. The image data recorded in the memory card 24 is read out, and individual image data constituting a series of moving images is decompressed in units of one frame and sent to the display encoder 14 via the image conversion unit 13 to be stored in the image data stored in the memory card 24. Based on this, it is possible to display a moving image or the like.

  The control unit 11 controls the operation of each circuit in the projector PJ, and includes a CPU (Central Processing Unit) and its peripheral circuits, a ROM (Read Only Memory) 111, a RAM (Random Access Memory) 112, and the like. Has been. The ROM 111 stores programs and data such as a CPU and various settings in advance, and the RAM 112 is used as a work memory or the like. The key / indicator unit 25 includes a main key and an indicator provided in the main body case and the like, and an operation signal thereof is sent to the control unit 11.

  An audio processing unit 30 is connected to the control unit 11 via the system bus 17, and the audio processing unit 30 includes a sound source circuit such as a PCM sound source, and converts the audio data into analog in the projection mode and the reproduction mode. The loudspeaker 31 can be driven to emit loud sounds. In addition, the control unit 11 sets the frequency in the light source frequency setting circuit 32 to operate the mercury lamp 20 at an AC frequency instructed from the corresponding personal computer PC. Therefore, the mercury lamp 20 of each projector PJ can perform light emission operation at arbitrary different light emission frequencies set by the light source frequency setting circuit 32.

  FIG. 3 is a block diagram showing the configuration of the personal computer PC. As shown in the figure, this personal computer PC includes a control unit 52, an HDD (Hard Disk) 53, a RAM 54, a sound processing unit 55, a graphic processing unit 56, a DVD / CD-ROM drive 57, which are connected to each other via a bus 51. A wireless communication processing unit 58 and an interface unit 59 are provided.

  The control unit 52 includes a CPU, a ROM, and the like, and sequentially executes programs stored in the RAM 54 based on a boot program stored in the ROM and a basic program such as an OS (Operating System) to perform various processes. In addition, the operation of each part in the PC main body is controlled.

  The RAM 54 is used as a main memory, and stores programs and data transferred from the DVD / CD-ROM. The RAM 54 is also used as a work area during program execution. The sound processing unit 55 includes a speaker that performs processing for reproducing sound data in accordance with an instruction from the control unit 52, outputs the sound data as an audio signal, and reproduces the audio signal.

  The graphic processing unit 56 generates various image data in accordance with an instruction from the control unit 52, adds a predetermined synchronization signal to the generated image data, and outputs it to the display unit 61 as a video signal. The DVD / CD-ROM drive 57 drives a DVD / CD-ROM set in the personal computer PC in accordance with an instruction from the control unit 52, and loads programs and data stored in the DVD / CD-ROM through the bus 51. To the RAM 54.

  A wireless communication unit 64 is connected to the wireless communication processing unit 58. The wireless signal from the pointer PT is received by the wireless communication unit 64, demodulated by the wireless communication processing unit 58, and sent to the control unit 52. Each input signal such as an image signal and a control signal to the projector PJ is sent from the control unit 52 to the interface unit 59 via the bus 51, and is modulated as necessary, and is input / output connector unit 65 and the USB. It is sent to the projector PJ via the cable 100. A response signal from the projector PJ is supplied to the control unit 52 via the USB cable 100, the input / output connector unit 65, the interface unit 59, and the bus 51.

  Further, a keyboard 62 is connected to the interface unit 59. The interface unit 59 also controls data exchange between the keyboard 62 and the control unit 52 or RAM 54. The HDD 53 stores various programs and various data. The display unit 61 includes a display screen including a liquid crystal panel or the like that displays an image corresponding to the video signal from the graphic processing unit 56.

  Therefore, the control unit 52 can process the video signal from the graphic processing unit 56 displayed on the display unit 61 and transmit the image signal to the projector PJ via the interface unit 59 and the input / output connector unit 65. Therefore, the projector PJ inputs an image signal transmitted from the personal computer PC from the input / output connector unit 65 and performs processing by each unit as described above, whereby the image displayed on the display unit 61 of the personal computer PC is displayed. The same image can be projected on the screens SA to SD.

  FIG. 4 is a plan view showing the external shape of the pointer PT. The pointer PT has a long housing 81 that can be gripped by a human hand, like the remote control panel. Upper ends of a plurality of buttons 82 protrude from the upper surface of the housing 81, and an imaging lens 83 and a laser diode 84 having an AF function are provided on the front end surface 95. Therefore, the imaging direction, which is the direction in which the image is taken by the imaging lens 83, and the irradiation direction, which is the direction of the laser emitted from the laser diode 84, are the same.

  FIG. 5 is a block diagram showing a circuit configuration of the pointer PT. As illustrated, the pointer PT includes a control unit 85, an operation information input unit 86, an imaging unit 87, a connection list storage unit 88, and the like. All information related to the operation of the button 82 is supplied from the operation information input unit 86 to the control unit 85 via the bus line 89. The imaging unit 87 is disposed on the optical axis of the imaging lens 83 and has a CCD on which a subject image is formed, an A / D converter that processes a signal output from the CCD, a DSP, and the like, and an imaging signal (image Signal) is processed and supplied to the controller 85.

  The connection list storage unit 88 is a memory for storing a connection list. In the connection list, channels that are not used at the time of storage (frequency set in the mercury lamp 20) and PJ names (PJA to PJD) indicating projectors to be set. And the PC name (any one of PCA to PCD) indicating the personal computer to which these PJA to PJD are connected by the USB cable 100 are stored in association with each other. Therefore, the PC name and PJ name corresponding to the frequency of the mercury lamp 20 can be specified by referring to the stored contents of the connection list storage unit 88.

  Note that the CCD included in the imaging unit 87 operates at a frame rate (sampling frequency) at which an image projected by the light flux emitted from the mercury lamp 20 of the projector PJ can be detected as flicker.

  The control unit 85 controls the operation of each circuit in the pointer PT, and includes a CPU and its peripheral circuits, a ROM 851, a RAM 852, and the like. The ROM 851 stores programs, data, and the like shown in the flowcharts described later in advance, and the RAM 852 is used as a work memory or the like.

  FIG. 6 is a series of general flowcharts showing the operations of the pointer PT, the personal computer PC, and the projector PJ. In addition, the name of the device (pointer PT, personal computer PC, projector PJ) that executes the content of the step is described in each step to clarify the device that operates.

  That is, the control unit 85 of the pointer PT constantly checks information fetched from the wireless communication unit 93 via the wireless communication processing unit 92 and determines whether or not there is a connection request from any personal computer PC (step S101). . If there is a connection request from any of the personal computers PC, the request is transmitted to the personal computer PC that has made the connection request with the PJ name that is the name of the projector to be used (the projector to be connected) (step S102).

  Then, the personal computer PC receiving this request transmits the name PJ name and the number of projectors to be used to the pointer PT side (step S103). Therefore, as shown in FIG. 1, when the personal computer PCC wants to use two projectors PJC and PJD, the personal computer PCC transmits “PJC” and “PJD” as the PJ names to the pointer PT. Therefore, “2” is transmitted as the number of units used.

Then, the pointer PT that has received this executes the following processes (1), (2), and (3) in the next step S104.
(1) Designate a channel (frequency set for the mercury lamp 20) that is not yet stored in the connection list of the connection list storage unit 88 at this time.
(2) The designated frequency, the PJ name (any of PJA to PJD) indicating the projector to which the specified frequency is set, and the PC name (any of PCA to PCD) indicating the personal computer controlling these PJA to PJD Is stored in the connection list.
(3) The specified frequency and the PJ name indicating the projector are transmitted to the personal computer PC stored in the connection list.

  The personal computer PC that has received this (the personal computer PC that made the connection request) inputs the designated frequency to the corresponding projector PJ via the USB cable 100. And the control part 11 of the said projector PJ is operated, the light source frequency setting circuit 32 is driven, and the alternating current frequency which operates the mercury lamp 20 is set. Then, the mercury lamp 20 of the projector PJ emits light at arbitrary different light emission frequencies set by the light source frequency setting circuit 32.

  Thus, for example, the presenter puts all personal computers PC and projectors PJ into the active state as described above, and projects the initial screen used for the first explanation on all the corresponding screens SA to SD. That is, the initial screen of the material stored in advance in the HDD 53 of the personal computer PC is displayed on the display unit 61. Then, the image data whose initial screen is displayed on the display unit 61 of the personal computer PC is transmitted to the projector PJ via the USB cable 100. The projector PJ receives this data, and is converted by the image conversion unit 13 so as to be unified into an image signal of a predetermined format suitable for display via the system bus 17. The display encoder 14 develops and stores the transmitted image signal in the video RAM 18, generates a video signal from the stored contents of the video RAM 18, and outputs the video signal to the display drive unit 15. The display drive unit 15, the display element 19 operates as described above. As a result, the same image as that displayed on the display unit 61 of the personal computer PC is displayed on the screens SA to SD.

At this time, since the process of step S104 described above is performed, as shown in FIG. 1, the projector PJA has a frequency A, the projector PJB has a frequency B, the projector PJC has a frequency C, and the projector PJD has a frequency D. Each projector PJ projects at a different frequency.

  FIG. 7 is a flowchart showing the processing procedure of the pointer PT. The control unit 85 of the pointer PT constantly monitors the state of the operation information input unit 86, and determines whether or not there is an end instruction by operating the button 82 (step S201). Steps S202 to S206 are repeated until an end instruction is issued by operating the button 82.

  First, it is determined whether or not flicker is detected (step S202). At this time, when the presenter points the front end surface 95 of the pointer PT toward any one of the screens SA to SD on which the image is projected, the cursor by the laser light from the laser diode 84 is displayed on the screen. Therefore, the presenter can smoothly advance the presentation while changing the direction of the pointer PT held and changing the position of the cursor on the screen.

  Further, when the front end surface 95 of the pointer PT is directed to any one of the screens SA to SD in this way, flicker generated on the screen is detected by imaging by the imaging unit 87 having the imaging lens 83. Therefore, the control unit 85 determines YES in step S202, and proceeds from step S202 to step S203. Then, the frequency is detected by analyzing the flicker detected by the imaging in the imaging unit 87.

  Thereafter, as described above, the connection list of the connection list storage unit 88 stores the frequency, the PJ name indicating the corresponding projector, and the PC name indicating the personal computer in association with each other. A PJ name is specified (step S204). Subsequently, the desired operation and the PJ name (name of the specified projector PJ) are transmitted to the personal computer PC to which the projector PJ specified in step S204 is connected (step S205). Here, the desired operation is a motion of the projector PJ desired by the presenter, and is a motion designated by the presenter operating the button 82 provided on the pointer PT. For example, switching from the currently projected image to another image, adjusting the brightness and size of the image, and the like.

  Next, the control unit 85 of the pointer PT determines whether or not there is a change in the detected frequency (step S206), and the process of step S205 is repeated until the change occurs. At this time, if the explainer changes the direction of the pointer PT so that the front end surface 95 is directed to another screen and the cursor is displayed on the screen for explanation, the flicker frequency detected by the imaging unit 87 is detected. Changes. Then, every time the detected flicker frequency changes, the control unit 85 returns from step S206 to step S201 and restarts the process from step S201.

  FIG. 8 is a flowchart showing the processing procedure of the personal computer PC. The control unit 52 of the personal computer PC constantly monitors the state of the keyboard 62 and determines whether or not an end instruction is given by a key operation (step S301). The processes in steps S301 to S303 are repeated until an end instruction is given by a key operation.

  First, it is determined whether or not there is an operation request from the pointer PT (step S302). At this time, if the desired operation and the PJ name for the projector PJ specified in the process of step S205 are transmitted from the pointer PT to the personal computer PC, the determination of the control unit 52 in step S302 is YES. Therefore, the control unit 52 of the personal computer PC performs a designated operation on the designated projector PJ, and controls the designated projector PJ to execute the designated operation (step S303).

  Then, a control signal from the personal computer PC is input to the projector PJ via the USB cable 100, and the control unit 11 of the projector PJ performs an operation designated based on the input signal and a program stored in the ROM 111. Run.

  Accordingly, as shown in FIG. 1, even when a presentation is performed using a plurality of projectors PT and a personal computer PC and different images are projected and displayed on the screens SA to SD, the presenter operates the pointer PT. Thus, the explanation can be advanced while switching the projection image of the projector PJ. Therefore, when it becomes necessary to switch any image as the presentation progresses, the presenter moves to the place where the personal computer corresponding to the projector displaying the image to be switched is placed and operates the personal computer. There is no need to perform an operation of switching the images displayed on the liquid crystal screen, and a plurality of projection images having different screens can be switched and displayed without moving.

  Therefore, the smooth progress and explanation of the presentation are not hindered due to the time lag that accompanies the movement of the explainer occurring at the time of image switching and the movement of the explainer enter the visual perception of the viewer receiving the explanation. Further, when controlling a projector by operating a personal computer as well as at the time of image switching, it is not necessary for the presenter to move to a place where the personal computer is placed and operate the personal computer.

For this reason, even if it is necessary to make a presentation with a multifaceted explanation using a plurality of personal computers, projectors, and screens as the explanation becomes complicated, it is possible to smoothly promote a presentation with a multifaceted explanation. Become.
Also. In the present embodiment, since flicker is detected by imaging by the imaging unit 87, a plurality of types of flicker can be reliably detected with simple processing content of imaging.

  In the embodiment, the projector PJ is specified by detecting the frequency by flicker on the screen on which the image is projected by the projector PJ. However, the present invention is not limited to this, and the personal computer PC and the projector PJ to be operated may be specified by using, for example, an angle sensor depending on whether or not the pointer PT is oriented in any of the screens SA to SD.

  In the embodiment, the light source of the projector PJ is described as the mercury lamp 20. However, as long as the emission frequency can be arbitrarily changed, the light source is not limited to the mercury lamp, and a semiconductor light source such as an LED or LD is used. Also good.

As mentioned above, although embodiment of this invention was described, these are suitably changeable if it is in the range with which the effect of this invention is acquired, Embodiment after change is also invention described in the claim, And the scope of the invention equivalent to that invention.
The invention described in the scope of the claims of the present application will be appended below.

[Claim 1]
A display system comprising a plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device having an operation means,
The operating device is:
A specifying means for specifying a terminal device corresponding to the display device based on the display by the display device;
Transmission means for transmitting a request signal corresponding to the operation of the operation means to the terminal device specified by the specification means,
The terminal device
Receiving means for receiving a request signal transmitted from the transmitting means of the operating device;
A display system comprising: control means for controlling the corresponding display device in response to a request signal received by the receiving means.

[Claim 2]
The display system according to claim 1, wherein the operation device includes an association unit that associates one of the display devices with the terminal device in advance.

[Claim 3]
The display system according to claim 2, wherein the association unit associates one of the display devices in response to a request from the terminal device.

[Claim 4]
The display system according to claim 2, wherein the association unit is a storage unit that associates and stores the terminal device and the display device.

[Claim 5]
The display device includes light sources that emit images at different frequencies and display images,
The operating device includes detection means for detecting the frequency of the light source based on an image displayed by the display device,
5. The display system according to claim 1, wherein the specifying unit specifies a terminal device corresponding to the display device based on a frequency of the light source detected by the detection unit.

[Claim 6]
The display system according to claim 5, wherein the detection unit detects the frequency by flicker on a display surface on which an image is displayed by the display device.

[Claim 7]
The display system according to claim 6, wherein the detection unit is an imaging unit that images the display surface.

[Claim 8]
The display system according to claim 5, wherein the control unit of the terminal device includes a setting unit that sets a frequency at which a light source included in the corresponding display device operates.

[Claim 9]
The said terminal device is provided with the screen which displays an image, The said display device acquires the image displayed on the said screen from a corresponding terminal device, and displays it on a predetermined | prescribed display surface. 8. The display system according to any one of 8.

[Claim 10]
A plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device, wherein the terminal device receives a request signal transmitted from a transmission unit of the operation device; The operation device in a display system comprising control means for controlling the corresponding display device in response to a request signal received by the receiving means,
Operation means;
A specifying means for specifying a terminal device corresponding to the display device based on the display by the display device;
Transmitting means for transmitting a request signal corresponding to the operation of the operating means to the terminal device specified by the specifying means;
An operating device comprising:

[Claim 11]
The operation device according to claim 10, further comprising an association unit that associates one of the display devices with the terminal device in advance.

[Claim 12]
The operation device according to claim 11, wherein the association unit associates one of the display devices in response to a request from the terminal device.

[Claim 13]
The operation device according to claim 11, wherein the association unit is a storage unit that stores the terminal device and the display device in association with each other.

[Claim 14]
The display device includes light sources that emit images at different frequencies and display images,
The operating device includes detection means for detecting the frequency of the light source based on an image displayed by the display device,
The operation device according to claim 10, wherein the specifying unit specifies a terminal device corresponding to the display device based on the frequency of the light source detected by the detection unit.

[Claim 15]
15. The operating device according to claim 14, wherein the detecting unit detects the frequency by flicker on a display surface on which an image is displayed by the display device.

[Claim 16]
The operation device according to claim 15, wherein the detection unit is an imaging unit that images the display surface.

DESCRIPTION OF SYMBOLS 11 Control part 12 Input / output interface 13 Image conversion part 14 Display encoder 15 Display drive part 16 Input / output connector part 17 System bus 18 Video RAM
DESCRIPTION OF SYMBOLS 19 Display element 20 Mercury lamp 32 Light source frequency setting circuit 58 Wireless communication processing part 59 Interface part 61 Display part 62 Keyboard 64 Wireless communication part 65 Input / output connector part 65 Input / output connector part 81 Housing 82 Button 83 Imaging lens 84 Laser diode 85 Control Unit 86 operation information input unit 87 imaging unit 88 connection list storage unit 92 wireless communication processing unit 93 wireless communication unit 95 distal end surface 100 USB cable

Claims (16)

A display system comprising a plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device having an operation means,
The operating device is:
A specifying means for specifying a terminal device corresponding to the display device based on the display by the display device;
Transmission means for transmitting a request signal corresponding to the operation of the operation means to the terminal device specified by the specification means,
The terminal device
Receiving means for receiving a request signal transmitted from the transmitting means of the operating device;
A display system comprising: control means for controlling the corresponding display device in response to a request signal received by the receiving means.   The display system according to claim 1, wherein the operation device includes an association unit that associates one of the display devices with the terminal device in advance.   The display system according to claim 2, wherein the association unit associates one of the display devices in response to a request from the terminal device.   The display system according to claim 2, wherein the association unit is a storage unit that associates and stores the terminal device and the display device. The display device includes light sources that emit images at different frequencies and display images,
The operating device includes detection means for detecting the frequency of the light source based on an image displayed by the display device,
5. The display system according to claim 1, wherein the specifying unit specifies a terminal device corresponding to the display device based on a frequency of the light source detected by the detection unit.   The display system according to claim 5, wherein the detection unit detects the frequency by flicker on a display surface on which an image is displayed by the display device.   The display system according to claim 6, wherein the detection unit is an imaging unit that images the display surface.   The display system according to claim 5, wherein the control unit of the terminal device includes a setting unit that sets a frequency at which a light source included in the corresponding display device operates. The said terminal device is provided with the screen which displays an image, The said display device acquires the image displayed on the said screen from a corresponding terminal device, and displays it on a predetermined | prescribed display surface. 8. The display system according to any one of 8. A plurality of display devices, a plurality of terminal devices corresponding to the plurality of display devices, and an operation device, wherein the terminal device receives a request signal transmitted from a transmission unit of the operation device; The operation device in a display system comprising control means for controlling the corresponding display device in response to a request signal received by the receiving means,
Operation means;
A specifying means for specifying a terminal device corresponding to the display device based on the display by the display device;
Transmitting means for transmitting a request signal corresponding to the operation of the operating means to the terminal device specified by the specifying means;
An operating device comprising:   The operation device according to claim 10, further comprising an association unit that associates one of the display devices with the terminal device in advance.   The operation device according to claim 11, wherein the association unit associates one of the display devices in response to a request from the terminal device.   The operation device according to claim 11, wherein the association unit is a storage unit that stores the terminal device and the display device in association with each other. The display device includes light sources that emit images at different frequencies and display images,
The operating device includes detection means for detecting the frequency of the light source based on an image displayed by the display device,
The operation device according to claim 10, wherein the specifying unit specifies a terminal device corresponding to the display device based on the frequency of the light source detected by the detection unit.   15. The operating device according to claim 14, wherein the detecting unit detects the frequency by flicker on a display surface on which an image is displayed by the display device.   The operation device according to claim 15, wherein the detection unit is an imaging unit that images the display surface.

Images