JP2022113264A - Display device control method, display device, and image processing device control method - Google Patents

Abstract

An object of the present invention is to allow a user to visually recognize an image that is not projected. A control method for a projector (200) communicably connected to each of a plurality of personal computers (100), receiving an image from each of a first number (N1) of two or more personal computers (100), and displaying a display area (AR). is divided into a second number N2 of regions equal to or greater than the first number N1, and each of the first number N1 of images is assigned to each region to generate a composite image PM synthesized into one image, and the generated composite image PM is displayed, and when further images (for example, the fifth image PE) are received from a personal computer 100 different from the first number N1 of personal computers 100, the total number of received images is greater than the second number N2 , the received image (for example, the fifth image PE) is transmitted to each of the first number N1 of personal computers 100 . [Selection drawing] Fig. 4

Description

The present invention relates to a control method for a display device, a display device, and a control method for an image processing device.

2. Description of the Related Art Conventionally, there is known a technique for displaying a plurality of images on a display device (see, for example, Japanese Unexamined Patent Application Publication No. 2002-100001).
Patent Literature 1 describes a graphical user interface device for selecting and arranging an image input from any of a plurality of personal computers connected to a projector to be projected.

JP 2011-165197 A

However, with the technique described in Patent Document 1, in a projector that projects a plurality of images, if the number of images input exceeds the number of images that can be projected, there is a possibility that the images cannot be projected. As a result, the user may not be able to see images that are not projected.

One aspect of solving the above problem is a control method for a display device communicably connected to each of a plurality of terminal devices, which receives an image from each of a first number of two or more terminal devices and displays the image. dividing the region into a second number of regions equal to or greater than the first number, assigning each of the first number of images to each region, and generating a composite image synthesized into one image; and displaying the generated composite image. and when further images are received from a terminal device different from the first number of terminal devices, if the total number of received images is equal to or less than the second number, the further received images are displayed in the display area. generating an added composite image, displaying the generated composite image, and, if the total number of received images is greater than the second number, further transmitting the received image to each of the first number of terminal devices; do.

Another aspect of solving the above problem is a display device communicably connected to each of a plurality of terminal devices, receiving an image from each of a first number of two or more terminal devices, is divided into a second number of regions equal to or greater than the first number, each of the first number of images is assigned to each region, a composite image is generated by combining the images into one image, and the generated composite image is displayed. , when further images are received from a terminal device different from the first number of terminal devices, if the total number of received images is equal to or less than the second number, the further received images are added to the display area. and displaying the generated composite image, and if the total number of received images is greater than the second number, the received image is further transmitted to each of the first number of terminal devices. .

Still another aspect of solving the above problem is a control method for an image processing device communicably connected to a plurality of terminal devices and a display device, wherein from each of two or more first number of terminal devices A composite image obtained by receiving an image, dividing a display area of the display device into a second number of areas equal to or greater than the first number, assigning each of the first number of images to each area, and synthesizing the image into one image. is displayed on the display device, and further images are received from a terminal device different from the first number of terminal devices, the total number of received images is equal to or less than the second number In some cases, a composite image is generated by adding the received image to the display area, the generated composite image is displayed on the display device, and if the total number of received images is greater than the second number, and transmitting the received image to each of the first number of terminal devices.

The figure which shows an example of a structure of the 1st display system which concerns on 1st Embodiment. FIG. 2 is a diagram showing an example of the configuration of a projector; FIG. 4 is a diagram showing an example of a projection state of a projector; 4 is a flowchart showing an example of processing of a projector; 6 is a flowchart showing another example of processing of the projector; The figure which shows an example of a structure of the 2nd display system which concerns on 2nd Embodiment.

Hereinafter, this embodiment will be described with reference to the drawings.
The display system 1 according to the present embodiment includes a first display system 1A which is the display system according to the first embodiment described with reference to FIGS. and a second display system 1B, which is a display system according to.

[First embodiment]
FIG. 1 is a diagram showing an example of the configuration of a first display system 1A, which is a display system according to the first embodiment.
A first display system 1A includes a personal computer 100 and a projector 200 . Projector 200 is communicably connected to personal computer 100 via network NW.
The network NW is, for example, a LAN (Local Area Network).
In this embodiment, a case where the network NW is a LAN will be described, but the network NW is not limited to this. The network NW may be, for example, a WAN (Wide Area Network) or the Internet. Also, the projector 200 and the personal computer 100 may be communicatively connected by wireless communication such as Wi-Fi (registered trademark).

Personal computer 100 transmits an image to projector 200 .
The personal computer 100 includes a first personal computer 100A, a second personal computer 100B, a third personal computer 100C, a fourth personal computer 100D, and a fifth personal computer 100E.
The personal computer 100 corresponds to an example of "a plurality of terminal devices".
Each of the first personal computer 100A to the fifth personal computer 100E corresponds to an example of a "terminal device".

The first personal computer 100A to the fifth personal computer 100E have substantially the same configuration. Therefore, in the following description, the configuration of the first personal computer 100A will be described, and the description of the configurations of the second personal computer 100B to the fifth personal computer 100E will be omitted.
Moreover, when the first personal computer 100A to the fifth personal computer 100E are not distinguished, each of the first personal computer 100A to the fifth personal computer 100E may be referred to as the personal computer 100. FIG.
The first personal computer 100A includes a first control section 110, a first operation section 120, a display section 130, and a first communication section 140.

The first control section 110 controls the operation of each section of the first personal computer 100A. The first controller 110 includes a first memory 111 and a first processor 113 . The first memory 111 stores a first control program. The first processor 113 controls the operation of each part of the first personal computer 100A by executing the first control program.

The first operation unit 120 receives operations from the user. The first operation unit 120 includes, for example, a keyboard and a mouse. The first operation unit 120 receives a user's operation on a keyboard, mouse, etc., generates an operation signal, and transmits the generated operation signal to the first control unit 110 .

Display unit 130 has a display such as an LCD (Liquid Crystal Display), for example, and displays various images on the LCD according to instructions from first control unit 110 .

The first communication unit 140 communicates with the projector 200 according to the Ethernet (registered trademark) standard, for example. The first communication unit 140 transmits image information to the projector 200, for example.

FIG. 2 is a diagram showing an example of the configuration of the projector 200. As shown in FIG.
The projector 200 includes a projection section 210 and a drive section 220 that drives the projection section 210 . The projection unit 210 forms an optical image and projects the image onto the screen SC.
Projector 200 corresponds to an example of a “display device”.
The projection section 210 includes a light source section 211 , an optical modulator 212 and a projection optical system 213 . The driver 220 includes a light source driver 221 and a light modulator driver 222 .

The light source unit 211 includes a lamp light source such as a halogen lamp, a xenon lamp, an extra-high pressure mercury lamp, or a solid light source such as an LED (Light Emitting Diode) or a laser light source.
Also, the light source unit 211 may include a reflector that guides the light emitted by the light source to the light modulation device 212 and an auxiliary reflector. Furthermore, the light source unit 211 may include a lens group for enhancing the optical characteristics of the projected light, a polarizing plate, or a light control element for reducing the amount of light emitted by the light source on the path leading to the light modulation device 212. good.
The light source drive unit 221 is connected to the internal bus 207 and turns on and off the light source of the light source unit 211 according to instructions from a second control unit 250 that is also connected to the internal bus 207 .

The light modulation device 212 includes, for example, three liquid crystal panels 215 corresponding to the three primary colors of R, G and B. R indicates red, G indicates green, and B indicates blue. That is, the light modulation device 212 includes a liquid crystal panel 215 corresponding to R-color light, a liquid crystal panel 215 corresponding to G-color light, and a liquid crystal panel 215 corresponding to B-color light.
The light emitted by the light source unit 211 is separated into three color lights of RGB, and is incident on the corresponding liquid crystal panel 215 . Each of the three liquid crystal panels 215 is a transmissive liquid crystal panel and modulates transmitted light to generate image light PL. The image light PL modulated by passing through each liquid crystal panel 215 is synthesized by a synthesizing optical system such as a cross dichroic prism and emitted to the projection optical system 213 .
In the first embodiment, the case where the light modulation device 212 includes a transmissive liquid crystal panel 215 as a light modulation element will be described, but the present invention is not limited to this. The light modulation element may be a reflective liquid crystal panel or a digital micromirror device.

The light modulator 212 is driven by a light modulator driver 222 . The light modulation device driving section 222 is connected to the image processing section 245 .
Image data corresponding to the primary colors of R, G, and B are input from the image processing unit 245 to the light modulation device driving unit 222 . The light modulator driver 222 converts the input image data into a data signal suitable for the operation of the liquid crystal panel 215 . The light modulator driving section 222 applies a voltage to each pixel of each liquid crystal panel 215 based on the converted data signal, and draws an image on each liquid crystal panel 215 .

The projection optical system 213 includes lenses, mirrors, and the like that form an image of the incident image light PL on the screen SC. The projection optical system 213 also includes a zoom mechanism for enlarging or reducing the image projected on the screen SC, a focus adjustment mechanism for adjusting focus, a lens shift mechanism for adjusting the projection direction of the image light PL, and the like.

The projector 200 further includes a second operation section 231 , a remote control light receiving section 233 , an input interface 235 , a storage section 237 , a communication interface 241 , a frame memory 243 , an image processing section 245 and a second control section 250 . The input interface 235, storage unit 237, communication interface 241, image processing unit 245, and second control unit 250 are connected via the internal bus 207 so as to be able to communicate with each other.

The second operation unit 231 includes various buttons and switches provided on the housing surface of the projector 200 , generates operation signals corresponding to the operations of these buttons and switches, and outputs the signals to the input interface 235 . The input interface 235 includes a circuit that outputs an operation signal input from the second operation section 231 to the second control section 250 .

The remote control light receiving section 233 receives an infrared signal transmitted from the remote controller 5 and decodes the received infrared signal to generate an operation signal. Remote control light receiving section 233 outputs the generated operation signal to input interface 235 . The input interface 235 outputs the operation signal input from the remote control light receiving section 233 to the second control section 250 .

The storage unit 237 is, for example, a magnetic recording device such as a HDD (Hard Disk Drive), or a storage device using a semiconductor storage device such as an SSD (Solid State Drive) or flash memory. The storage unit 237 stores programs executed by the second control unit 250, data processed by the second control unit 250, image information, audio information, and the like.

The communication interface 241 is communicably connected to each of the first personal computer 100A to the fifth personal computer 100E according to the Ethernet standard, for example. The communication interface 241 includes circuits for transmitting and receiving various information to and from each of the first personal computer 100A to the fifth personal computer 100E according to the Ethernet standard.

Each of the image processing unit 245 and the frame memory 243 can be configured by an integrated circuit, for example. Integrated circuits include LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), and PLD (Programmable Logic Device). PLDs include, for example, FPGAs (Field-Programmable Gate Arrays). Also, part of the configuration of the integrated circuit may include analog circuitry, or may be a combination of a processor and an integrated circuit. A combination of a processor and an integrated circuit is called a microcontroller (MCU), SoC (system-on-a-chip), system LSI, chipset, or the like.

The image processing unit 245 develops the image information input from the communication interface 241 in the frame memory 243 . The frame memory 243 has multiple banks. Each bank has a storage capacity capable of writing image information for one frame. The frame memory 243 is composed of, for example, SDRAM (Synchronous Dynamic Random Access Memory).

The image processing unit 245 performs image processing such as resolution conversion processing, resizing processing, distortion aberration correction, shape correction processing, digital zoom processing, and image color and brightness adjustment on the image data developed in the frame memory 243. process.
The image processing unit 245 also generates a vertical synchronization signal by converting the input frame frequency of the vertical synchronization signal into a drawing frequency. The generated vertical sync signal is called an output sync signal. The image processing section 245 outputs the generated output synchronization signal to the light modulation device driving section 222 .

The second controller 250 includes a second memory 251 and a second processor 253 .
The second memory 251 is a storage device that nonvolatilely stores programs and data executed by the second processor 253 . The second memory 251 is composed of a magnetic memory device, a semiconductor memory device such as a flash ROM, or other types of non-volatile memory devices. The second memory 251 may also include a RAM forming a work area for the second processor 253 . The second memory 251 stores data processed by the second control unit 250 and a second control program executed by the second processor 253 .

The second processor 253 may be composed of a single processor, or may be configured so that multiple processors function as the second processor 253 . The second processor 253 executes the second control program to control each part of the projector 200 . For example, the second processor 253 outputs to the image processing section 245 an image processing execution instruction corresponding to the operation accepted by the second operation section 231 and the remote controller 5 and the parameters used for this image processing. The parameters include, for example, geometric correction parameters for correcting geometric distortion of the image projected onto the screen SC. In addition, the second processor 253 controls the light source driving section 221 to control the lighting and extinguishing of the light source section 211 and adjust the brightness of the light source section 211 .

Next, an example of processing of the second control unit 250 of the projector 200 will be described with reference to FIG. FIG. 3 is a diagram showing an example of the projection state of the projector 200. As shown in FIG.
Second control unit 250 receives image information from each of first personal computer 100A to fourth personal computer 100D. Specifically, the second control unit 250 receives the first image information JA from the first personal computer 100A. Also, the second control unit 250 receives the second image information JB from the second personal computer 100B. The second control section 250 receives the third image information JC from the third personal computer 100C. The second control section 250 receives the fourth image information JD from the fourth personal computer 100D.
The first personal computer 100A to the fourth personal computer 100D correspond to an example of "the first number of terminal devices". The first number N1 is, for example, four.

As shown in FIG. 3, the second control unit 250 of the projector 200 divides the display area AR of the screen SC into a first area AR1 and a second area AR2 by a straight line LH extending in the horizontal direction and a straight line LV extending in the vertical direction. , a third area AR3, and a fourth area AR4.
The straight line LH vertically bisects the display area AR. The straight line LV bisects the display area AR horizontally. That is, the areas of the first area AR1 to the fourth area AR4 are the same as each other.
The four areas composed of the first area AR1 to the fourth area AR4 correspond to an example of the "second number of areas". That is, the second number N2 is, for example, four.
The second control unit 250 also assigns the first image PA to the first area AR1, the second image PB to the second area AR2, the third image PC to the third area AR3, and the image PC to the fourth area AR4. Assign the fourth image PD. Then, the second control unit 250 combines the first image PA to the fourth image PD to generate a composite image PM, and projects the composite image PM onto the screen SC.
The first image PA corresponds to the first image information JA, the second image PB corresponds to the second image information JB, the third image PC corresponds to the third image information JC, and the fourth image PD corresponds to , corresponds to the fourth image information JD.

A case where the second control unit 250 further receives the fifth image information JE from the fifth personal computer 100E in the state shown in FIG. 3 will be described below.
The fifth personal computer 100E corresponds to an example of "a terminal device different from the first number of terminal devices".
The total number of received images NP is five. Since the second number N2 is four, the total number NP is greater than the second number N2. In this case, the second control section 250 transmits the fifth image information JE to each of the first personal computer 100A to the fourth personal computer 100D. Each of the first personal computer 100A to the fourth personal computer 100D further displays on the display unit 130 the fifth image PE corresponding to the received fifth image information JE.

Thus, in order to transmit the received fifth image information JE to each of the first personal computer 100A to the fourth personal computer 100D, each user of the first personal computer 100A to the fourth personal computer 100D The fifth image PE corresponding to the five image information JE can be easily visually recognized. Therefore, the user can see the non-projected image (here, the fifth image PE).

Further, the second control unit 250 notifies the fifth personal computer 100E to transmit the received fifth image information JE to each of the first personal computer 100A to the fourth personal computer 100D. Fifth personal computer 100E displays the notified content on display unit 130 .

In order to notify the fifth personal computer 100E to transmit the received fifth image information JE to each of the first personal computer 100A to the fourth personal computer 100D, the user of the fifth personal computer 100E , that each user of the first personal computer 100A to the fourth personal computer 100D can visually recognize the fifth image PE. Therefore, user convenience can be improved.

Although FIG. 3 illustrates the case where each of the first number N1 and the second number N2 is four, the second number N2 may be equal to or greater than the first number N1. For example, when the first number N1 is 4 and the second number N2 is 5 or more (for example, 9), the second control unit 250 performs the following process.
The total number NP of received images is five. Since the second number N2 is nine, the total number NP is less than or equal to the second number N2. In this case, since the second number N2 is nine, the display area AR of the screen SC is divided into the first area AR1 to the ninth area AR9.
The second control unit 250 further generates a synthesized image PM by adding the received image (fifth image PE) to the display area AR. That is, the second control unit 250 allocates the first image PA to the first area AR1, the second image PB to the second area AR2, the third image PC to the third area AR3, and the third image PC to the fourth area AR4. A fourth image PD is assigned, and a fifth image PE is assigned to the fifth area AR5. Then, the second control unit 250 combines the first image PA to the fifth image PE to generate the composite image PM. Then, the second control unit 250 projects the generated composite image PM onto the screen SC.

FIG. 3 describes the case where the first image PA to fourth image PD are synthesized to generate the synthesized image PM, and the synthesized image PM is projected onto the screen SC. It is also possible to display one of the images PD in full screen.
For example, a case where the projector 200 displays the first image PA on the full screen will be described below. When displaying the first image PA on the full screen, the projector 200 displays the first image PA on the entire display area AR of the screen SC.
Further, the second control unit 250 of the projector 200 converts the second image information JB to the fourth image information JD corresponding to the second image PB to the fourth image PD, which are not displayed in the display area AR of the screen SC, into the first It is transmitted to each of personal computer 100A to fourth personal computer 100D. Then, each of the first personal computer 100A to the fourth personal computer 100D displays the second image PB to the fourth image PD corresponding to the received second image information JB to fourth image information JD, respectively, on the display unit 130. indicate.

In this way, in order to transmit the second image information JB to the fourth image information JD to each of the first personal computer 100A to the fourth personal computer 100D, each user of the first personal computer 100A to the fourth personal computer 100D can easily visually recognize the second image PB to fourth image PD corresponding to each of the second image information JB to fourth image information JD. Therefore, the user can see the non-projected images (here, the second image PB to the fourth image PD).

Also, the second control unit 250 of the projector 200 determines the transmission speed for transmitting one image according to the number of images to be transmitted to each of the first personal computer 100A to the fourth personal computer 100D. As the number of images transmitted to each of the first personal computer 100A to the fourth personal computer 100D increases, the second control unit 250 reduces the transmission speed for transmitting one image.
Specifically, when transmitting three images, the second control unit 250 reduces the transmission rate to 1/3 of that when transmitting one image. The second control unit 250 reduces the transmission speed by, for example, reducing the image resolution. Also, the second control unit 250 reduces the transmission speed by, for example, reducing the frame rate.

FIG. 4 is a flowchart showing an example of processing of the second control unit 250 of the projector 200. As shown in FIG.
As shown in FIG. 4, first, in step S101, the second control unit 250 receives the first number N1 of image information from the first number N1 of personal computers 100. As shown in FIG. The second control unit 250 receives the first image information JA to fourth image information JD from the first personal computer 100A to fourth personal computer 100D, for example, as described with reference to FIG. The first number N1 is, for example, four.
Next, in step S103, the second control unit 250 generates a composite image PM having a second number N2 of regions. For example, as described with reference to FIG. 3, the second control unit 250 assigns the first image PA to the first area AR1, assigns the second image PB to the second area AR2, and assigns the second image PB to the third area AR3. 3 images PC are assigned, and the fourth image PD is assigned to the fourth area AR4. Then, the second control unit 250 combines the first image PA to the fourth image PD to generate the composite image PM. The second number N2 is, for example, four.
Next, in step S105, the second control unit 250 projects and displays the composite image PM on the screen SC.

Next, in step S<b>107 , the second control section 250 further receives images from other personal computers 100 . For example, the second control unit 250 further receives fifth image information JE from the fifth personal computer 100E.
Next, in step S109, the second control unit 250 determines whether or not the total number NP of received images, that is, (the first number N1+1) is greater than the second number N2.
When the second control unit 250 determines that (the first number N1+1) is not greater than the second number N2 (step S109; NO), the process proceeds to step S111.
Then, in step S111, the second control unit 250 generates a composite image PM including the image received in step S107, that is, the fifth image PE. For example, the second control unit 250 allocates the first image PA to the first area AR1, the second image PB to the second area AR2, the third image PC to the third area AR3, and the third image PC to the fourth area AR4. A fourth image PD is assigned, and a fifth image PE is assigned to the fifth area AR5. Then, the second control unit 250 combines the first image PA to the fifth image PE to generate the composite image PM.
Next, in step S113, the second control unit 250 projects and displays the composite image PM on the screen SC. After that, the process ends.

When the second control unit 250 determines that (the first number N1+1) is greater than the second number N2 (step S109; YES), the process proceeds to step S115.
Then, in step S115, the second control unit 250 transmits the image received in step S107, that is, the fifth image PE to the personal computers 100 of the first number N1. For example, the second control unit 250 transmits the fifth image information JE corresponding to the fifth image PE to each of the first personal computer 100A to the fourth personal computer 100D.
Next, in step S117, the second control unit 250 notifies the fifth personal computer 100E to transmit the image further received in step S107, that is, the fifth image PE to the first number N1 of personal computers 100. do. After that, the process ends.

FIG. 5 is a flowchart showing another example of processing of the second control unit 250 of the projector 200. As shown in FIG.
Since each of steps S201 to S205 in FIG. 5 is the same processing as each of steps S101 to S105 in FIG. 4, description thereof will be omitted.
As shown in FIG. 5, in step S207, the second control unit 250 displays one image out of the first number N1 of images on the full screen. For example, the second control unit 250 displays the first image PA on the full screen.
Next, in step S209, the second control unit 250 transmits all other images to the personal computers 100 of the first number N1. The second control unit 250, for example, transmits the second image information JB to the fourth image information JD to each of the first personal computer 100A to the fourth personal computer 100D. After that, the process ends.

[Second embodiment]
FIG. 6 is a diagram showing an example of the configuration of a second display system 1B according to the second embodiment.
As shown in FIG. 6, the second display system 1B includes a personal computer 100, a projector 200, and an image processing device 300.
The second display system 1B differs from the first display system 1A shown in FIG. 1 in that it includes an image processing device 300 . In the following description, differences from the first display system 1A shown in FIG. 1 are mainly described.

The image processing apparatus 300 is communicably connected to the personal computer 100 via the network NW. Further, the image processing device 300 is communicably connected to the projector 200 according to, for example, the HDMI (registered trademark) (High-Definition Multimedia Interface) standard.

The image processing apparatus 300 is configured by a personal computer, for example, and includes a third control section 310 , a third communication section 320 and an HDMI communication section 330 .
The third communication unit 320 is communicably connected to the personal computer 100 via the network NW.
The HDMI communication unit 330 is communicably connected to the projector 200 via, for example, an HDMI cable.
The third control section 310 controls each section of the image processing apparatus 300 .
In the second embodiment, a case where the image processing apparatus 300 is configured by a personal computer will be described, but it is not limited to this. For example, the image processing device 300 may be configured by a tablet terminal, or may be configured by a smart phone.

The third controller 310 includes a third memory 311 and a third processor 313 .
The third memory 311 is a storage device that nonvolatilely stores programs and data executed by the third processor 313 . The third memory 311 is composed of a magnetic memory device, a semiconductor memory device such as a flash ROM, or other types of non-volatile memory devices. Also, the third memory 311 may include a RAM forming a work area for the third processor 313 . The third memory 311 stores data processed by the third control unit 310 and a third control program executed by the third processor 313 .

The third processor 313 may be composed of a single processor, or may be configured so that multiple processors function as the third processor 313 . A third processor 313 executes a third control program to control each part of the image processing apparatus 300 .

The third control unit 310 executes the processing described with reference to FIGS. 3 to 5 among the processing executed by the second control unit 250 of the projector 200 in the first embodiment.

In this manner, the third control unit 310 of the image processing device 300 executes the processing executed by the second control unit 250 described with reference to FIGS. 3 to 5 in the first display system 1A of the first embodiment. Therefore, the second display system 1B of the second embodiment has the same effects as the first display system 1A of the first embodiment.
In other words, the image processing device 300 of the second embodiment has the same effects as the projector 200 of the first embodiment.

As described above with reference to FIGS. 1 to 5, the method for controlling the projector 200 according to the first embodiment is a method for controlling the projector 200 communicably connected to each of the plurality of personal computers 100. , receive images from each of two or more first number N1 of personal computers 100 (for example, first personal computer 100A to fourth personal computer 100D), and display the display area AR in a second number equal to or greater than the first number N1. divided into N2 regions, assigning each of the first number N1 of images to each region to generate a composite image PM synthesized into one image, displaying the generated composite image PM, and displaying the first number N1 of personal images When further images (for example, a fifth image PE) are received from a personal computer 100 (for example, a fifth personal computer 100E) different from the computer 100, the total number of received images NP (=N1+1) becomes the second number N2. In the case below, a composite image PM is generated by adding the received image (for example, the fifth image PE) to the display area AR, the generated composite image PM is displayed, and the total number of received images NP (= N1+1) is greater than the second number N2, the received image (for example, the fifth image PE) is also transmitted to each of the first number N1 of personal computers 100 .
That is, when the projector 200 further receives the fifth image PE from the personal computer 100 different from the first number N1 of personal computers 100, the total number of received images NP (=N1+1) is greater than the second number N2. If larger, the received fifth image PE is further transmitted to each of the first number N1 of personal computers 100 .
Therefore, each user of the first personal computer 100A to the fourth personal computer 100D can easily visually recognize the fifth image PE. Therefore, the user can see the non-projected image (here, the fifth image PE).

Further, an image (eg, a fifth image PE), if the total number NP (=N1+1) of the received images is greater than the second number N2, the personal computer 100 different from the personal computer 100 of the first number N1 (for example, the fifth personal computer 100E) to transmit an image (e.g., fifth image PE) further received from the personal computer 100 (e.g., fifth personal computer 100E) to each of the first number N1 of personal computers 100. do.
Therefore, in order to notify the fifth personal computer 100E that the fifth image PE will be sent to each of the first personal computer 100A to the fourth personal computer 100D, the user of the fifth personal computer 100E must It can be confirmed that each user of the ˜fourth personal computer 100D can visually recognize the fifth image PE. Therefore, user convenience can be improved.

Further, the projector 200 is configured to be able to switch between display of the composite image PM and full-screen display in which one image is displayed in the display area AR. When one image PA) is displayed on the full screen, all the images (for example, the second image PB to the fourth image PD) except for one of the first number N1 of images are displayed on the first number N1 of personal images. It is transmitted to each of computers 100 (eg, first personal computer 100A to fourth personal computer 100D).
That is, when one image (for example, the first image PA) is displayed on the full screen, all images (for example, the second image PB to the fourth image PD) except for one of the first number N1 of images ) to each of the first number N1 of personal computers 100 (for example, the first personal computer 100A to the fourth personal computer 100D).
Therefore, each user of the first personal computer 100A to the fourth personal computer 100D can easily visually recognize all images except for one image (for example, the second image PB to the fourth image PD). Therefore, the user can see the non-projected image (here, the fifth image PE).

Also, when images are transmitted to each of the first number N1 of personal computers 100, the transmission speed for transmitting one image is determined according to the number of images to be transmitted.
Therefore, since the transmission speed for transmitting one image is determined according to the number of images to be transmitted, the transmission speed can be determined to an appropriate value. Therefore, it is possible to suppress the occurrence of a communication abnormality such as failure to transmit a part of an image.

As described with reference to FIGS. 1 to 5, the projector 200 according to the first embodiment is a projector 200 communicably connected to a plurality of personal computers 100, and has a first number N1 of two or more. receive images from each of the personal computers 100 (for example, the first personal computer 100A to the fourth personal computer 100D), divide the display area AR into a second number N2 of areas equal to or greater than the first number N1, and divide each area a personal computer 100 ( For example, when an image (for example, a fifth image PE) is further received from the fifth personal computer 100E), if the total number NP (=N1+1) of the received images is equal to or less than the second number N2, the further received Generate a composite image PM by adding an image (e.g., a fifth image PE) to the display area AR, display the generated composite image PM, and display the total number of received images NP (=N1+1) greater than the second number N2 In this case, the received image (for example, the fifth image PE) is transmitted to each of the personal computers 100 of the first number N1.
That is, when the projector 200 further receives the fifth image PE from the personal computer 100 different from the first number N1 of personal computers 100, the total number of received images NP (=N1+1) is greater than the second number N2. If larger, the received fifth image PE is further transmitted to each of the first number N1 of personal computers 100 .
Therefore, each user of the first personal computer 100A to the fourth personal computer 100D can easily visually recognize the fifth image PE. Therefore, the user can see the non-projected image (here, the fifth image PE).

As described with reference to FIGS. 1 to 6, the method for controlling the image processing apparatus 300 according to the present embodiment controls the image processing apparatus 300 communicably connected to a plurality of personal computers 100 and the projector 200. In the method, an image is received from each of two or more first number N1 of personal computers 100 (for example, first personal computer 100A to fourth personal computer 100D), and display area AR of projector 200 is set to the first number. dividing into a second number N2 of areas equal to or greater than N1, assigning each of the first number N1 of images to each area to generate a composite image PM synthesized into one image, and displaying the generated composite image PM; When further images (for example, the fifth image PE) are received from a personal computer 100 (for example, a fifth personal computer 100E) different from the first number N1 of personal computers 100, the total number of received images NP (=N1+1) ) is equal to or less than the second number N2, a composite image PM is generated by adding the received image (for example, the fifth image PE) to the display area AR, and the generated composite image PM is displayed on the projector 200. , if the total number of received images NP (=N1+1) is greater than the second number N2, further received images (e.g., the fifth image PE) are transmitted to each of the first number N1 of personal computers 100. .
That is, when the image processing apparatus 300 receives the fifth image PE from a personal computer 100 different from the first number N1 of personal computers 100, the total number of received images NP (=N1+1) is greater than the second number N2. is also larger, the received fifth image PE is transmitted to each of the personal computers 100 of the first number N1.
Therefore, each user of the first personal computer 100A to the fourth personal computer 100D can easily visually recognize the fifth image PE. Therefore, the user can see the non-projected image (here, the fifth image PE).

The present embodiment described above is a preferred embodiment. However, it is not limited to this embodiment described above, and various modifications can be made without departing from the scope of the invention.
In this embodiment, the case where the “display device” is the projector 200 has been described, but the present invention is not limited to this. The “display device” may be, for example, a device that displays on a display such as an LCD (Liquid Crystal Display).

In this embodiment, the case where the “terminal device” is the personal computer 100 has been described, but the present invention is not limited to this. A “terminal device” may be, for example, a tablet terminal or a smartphone.

Also, in the present embodiment, the case where the first number N1 is four has been described, but the present invention is not limited to this. The first number N1 may be two or more. The first number N1 may be, for example, two or three. Also, the first number N1 may be, for example, five or more.

Although the case where the second number N2 is four has been described in the present embodiment, the present invention is not limited to this. The second number N2 may be greater than or equal to the first number N1. When the first number N1 is four, the second number N2 may be, for example, five or six.

In the present embodiment, the case of receiving an image from one personal computer 100 (for example, the fifth personal computer 100E) different from the first number N1 of personal computers 100 has been described, but the present invention is not limited to this. Images may be received from a plurality of personal computers 100 different from the first number N1 of personal computers 100 .

Moreover, each functional unit shown in FIGS. 1, 2, and 6 shows a functional configuration, and a specific implementation form is not particularly limited. In other words, it is not always necessary to mount hardware corresponding to each functional unit individually, and it is possible to adopt a configuration in which one processor executes a program to realize the functions of a plurality of functional units. Further, part of the functions realized by software in the above embodiments may be realized by hardware, or part of the functions realized by hardware may be realized by software. In addition, the specific detailed configuration of each other part of the personal computer 100, the projector 200, and the image processing device 300 can be arbitrarily changed without departing from the scope.

In order to facilitate understanding of the processing of the second control unit 250 of the projector 200 and the third control unit 310 of the image processing device 300, the processing units of the flowcharts shown in FIGS. It is divided according to the processing contents. It is not limited by the division method or names of the processing units shown in the flow charts of FIGS. 4 and 5, and can be divided into more processing units according to the processing contents, or can be divided into one processing unit. can also be split to include more operations. Also, the processing order of the above flowchart is not limited to the illustrated example.

Also, the control method of the projector 200 can be realized by causing the second processor 253 included in the projector 200 to execute a second control program corresponding to the control method of the projector 200 . The second control program can also be recorded in a computer-readable recording medium. A magnetic or optical recording medium or a semiconductor memory device can be used as the recording medium. Specifically, flexible disks, HDDs, CD-ROMs (Compact Disk Read Only Memory), DVDs, Blu-ray (registered trademark) Discs, magneto-optical disks, flash memories, card-type recording media, and other portable or fixed recording media of the formula. Also, the recording medium may be a non-volatile storage device such as a RAM, ROM, HDD, etc., which is an internal storage device provided in the projector 200 . Alternatively, the second control program corresponding to the control method of the projector 200 may be stored in a server device or the like, and the control method of the projector 200 may be realized by downloading the second control program from the server device to the projector 200. can.

Also, the control method of the image processing device 300 can be realized by causing the third processor 313 of the third control unit 310 included in the image processing device 300 to execute a third control program corresponding to the control method of the image processing device 300. . Also, this third control program can be recorded in a computer-readable recording medium. A magnetic or optical recording medium or a semiconductor memory device can be used as the recording medium. Specific examples include portable or fixed recording media such as flexible discs, HDDs, CD-ROMs, DVDs, Blu-ray (registered trademark) discs, magneto-optical discs, flash memories, and card-type recording media. . Also, the recording medium may be a non-volatile storage device such as a RAM, ROM, HDD, etc., which is an internal storage device included in the image processing apparatus 300 . A third control program corresponding to the control method of the image processing device 300 is stored in a server device or the like, and the third control program is downloaded from the server device to the image processing device 300 to control the image processing device 300. A method can also be implemented.

REFERENCE SIGNS LIST 1 Display system 1A First display system 1B Second display system 100 Personal computer (terminal device) 100A First personal computer 100B Second personal computer 100C Third personal computer 100D ... fourth personal computer, 100E ... fifth personal computer, 110 ... first control section, 111 ... first memory, 113 ... first processor, 120 ... first operation section, 140 ... first communication section, 200 ... projector ( display device), 210...projection section, 211...light source section, 212...light modulation device, 213...projection optical system, 215...liquid crystal panel, 220...drive section, 221...light source drive section, 222...light modulation device drive section, 231 Second operation unit 241 Communication interface 245 Image processing unit 250 Second control unit 251 Memory 253 Processor 300 Image processing device 310 Third control unit 311 Third Memory 313 Third processor 320 Third communication unit 330 HDMI communication unit AR1 First area AR2 Second area AR3 Third area AR4 Fourth area AR5 Fifth area , AR9... ninth area, JA... first image information, JB... second image information, JC... third image information, JD... fourth image information, JE... fifth image information, N1... first number, N2... Second number, NP...Total number, NW...Network, PA...First image, PB...Second image, PC...Third image, PD...Fourth image, PE...Fifth image, PL...Image light, PM...Synthesis Image, SC... Screen.

Claims (6)

A control method for a display device communicably connected to each of a plurality of terminal devices, comprising:
receiving an image from each of the two or more first number of terminal devices;
dividing the display area into a second number of areas equal to or greater than the first number, assigning each of the first number of images to each area, and generating a synthesized image synthesized into one image; display and
When further images are received from a terminal device different from the first number of terminal devices,
if the total number of received images is equal to or less than the second number, generating a composite image by adding the received images to the display area, and displaying the generated composite image;
If the total number of received images is greater than the second number, further transmitting the received images to each of the first number of terminal devices.
Display device control method. When images are further received from a terminal device different from the first number of terminal devices, if the total number of received images is greater than the second number, the terminal device is different from the first number of terminal devices Notifying the terminal device that it will further transmit the received image to each of the first number of terminal devices;
The method of controlling the display device according to claim 1 . The display device is configured to be switchable between display of the composite image and full-screen display in which one image is displayed in the display area,
When one image out of the first number of images is displayed on the full screen, all images except the one image out of the first number of images are displayed on each of the first number of terminal devices. Send,
3. The method of controlling a display device according to claim 1. determining a transmission rate for transmitting one image according to the number of images to be transmitted when transmitting images to each of the first number of terminal devices;
The method of controlling a display device according to any one of claims 1 to 3. A display device communicably connected to each of a plurality of terminal devices,
receiving an image from each of the two or more first number of terminal devices;
dividing a display area into a second number of areas equal to or greater than the first number, assigning each of the first number of images to each area, and generating a synthesized image by synthesizing the images into one image; display and
When further images are received from a terminal device different from the first number of terminal devices,
if the total number of received images is equal to or less than the second number, generating a composite image by adding the received images to the display area, and displaying the generated composite image;
If the total number of received images is greater than the second number, further transmitting the received images to each of the first number of terminal devices.
display device. A control method for an image processing device communicably connected to a plurality of terminal devices and a display device,
receiving an image from each of the two or more first number of terminal devices;
dividing the display area of the display device into a second number of areas equal to or greater than the first number, assigning each of the first number of images to each area, and generating a composite image by combining the images into one image; Displaying the synthesized image on the display device,
When further images are received from a terminal device different from the first number of terminal devices,
if the total number of received images is equal to or less than the second number, generating a composite image by adding the received images to the display area, and displaying the generated composite image on the display device;
If the total number of received images is greater than the second number, further transmitting the received images to each of the first number of terminal devices.
A control method for an image processing device.

Images