JP6392573B2 - Multi display system - Google Patents

Description

  The present invention relates to a multi-display system and a display.

  Currently, as a large screen display device, a multi-display type device in which a plurality of display devices (displays) are arranged in the vertical and / or horizontal direction to form one large screen is widely used. Multi-displays are used for applications such as digital signage (electronic signage) in department stores and shops because they have the effect of attracting attention from a distance because they are powerful images on a large screen (for example, non-patent literature) 1 and 2).

  Conventionally, in such a multi-display, a picture-in-picture (PIP) display that displays a small screen in a large screen, and a picture-by-picture that displays a large screen divided into two small screens. Various display methods according to applications such as (PbyP: Picture by Picture) display have been proposed. By utilizing such various display methods, it is possible to expect an effective advertising effect such as simultaneous presentation of a plurality of contents and presentation of timely contents according to the situation.

On the other hand, with the spread of displays with a touch panel in recent years, multi-display systems using a display with a touch panel for some or all of the displays constituting the multi-display have been seen.
For example, a multi-display system that displays video that was displayed on the entire large screen on the entire display screen touched by the viewer, and displays that are not touched by the viewer on the multi-display system is proposed. (For example, see Patent Documents 1 and 2). With such a multi-display system, video content can be provided on a screen of the optimal size for both viewers who have touch-input and viewers who are far away from the display, and viewers who want more detailed information. Interactive content can be provided.

JP 2009-295016 A JP 2012-079194 A

"Multi-signage (18-screen multi-display) | Sharp Display Solution Web Showroom", [online], [Search April 28, 2014], Internet <URL: http://www.sharp.co.jp/business/ btob_showroom / ws / multi / multidisplay18.html> "PN-V601A | Information Display | Corporate Customers (BtoB): Sharp", [online], [Search April 28, 2014], Internet <URL: http://www.sharp.co.jp/ business / lcd-display / lineup / pnv601a_feature.html>

  In a conventional multi-display system including such a display with a touch panel, in order to prevent the touch operation of one viewer from affecting the display of the entire large screen and causing trouble to many other viewers, The operation result was reflected only on the display touched by the viewer.

However, for example, in presentations and lectures for a large number of people, lectures at universities, demonstrations of large-scale training or exhibitions and events, etc., there are situations in which the contents of touch input by the input person are desired to be displayed to a large number of viewers. Not a few.
In such a situation, if the touch input result is displayed only on the screen of the display touched by the input person, it may be difficult for the viewer who is far away from the display to see the touch input character because it is small. Also, when the display touched by the input person is at the bottom of the multi-display, the content of the touch input may be hidden from view by the previous viewer.

  On the other hand, even if touch input can be performed on the entire large screen, the range that the input person can touch is limited if the input person's hand does not reach the upper display or if the large screen is wide. There is a problem.

  The present invention has been made in consideration of the above circumstances, and its purpose is to enable touch input on a small screen constituting a multi-display while displaying a touch input result on a large screen of the multi-display. The object is to provide a multi-display system to reflect.

  The present invention comprises a plurality of displays arranged vertically and horizontally to form one large screen composed of a plurality of small screens, and has a multi-display display function for displaying an input image on the entire large screen. At least one display is a touch display including a touch panel, a touch input permission unit that permits reception of touch input of the designated touch display, and the input images corresponding to the result of the touch input are displayed on the plurality of displays. For each of the plurality of displays, the input image output unit for outputting to the display, the normal display for displaying the input image on the entire small screen should be performed, or the multi-display for displaying the input image on the entire large screen. A display determination unit for determining whether to perform display, the touch input permission unit, and the input image An output unit and a control unit that controls the display determination unit, and when the touch display is designated, the control unit displays the input image related to the multi-display display. Controlling the display determination unit to display the input image related to the normal display on the touch display, allowing the touch input permission unit to accept the touch input of the touch display, and causing the input image output unit to The present invention provides a multi-display system characterized in that the input images corresponding to the result of touch input are output to the plurality of displays.

  According to the present invention, it is possible to perform touch input on a small screen constituting the multi-display by releasing the multi-display display of the display with the touch panel specified at the time of touch input, performing touch input, and returning to the multi-display display after the touch input. In addition, a multi-display system that reflects the touch input result on the large screen of the multi-display can be realized.

It is a block diagram which shows schematic structure of the multi-display system of this invention. (Embodiment 1) It is explanatory drawing which shows an example of the daisy chain connection of the some display which comprises the multi display of FIG. (Embodiment 1) It is a block diagram which shows a part of structure of the multi-display system of FIG. (Embodiment 1) It is a flowchart which shows the process of the display with a touchscreen of this invention. (Embodiment 1) It is a flowchart which shows the process of the display with a touchscreen of this invention. (Embodiment 1) It is a flowchart which shows the process of the display with a touchscreen of this invention. (Embodiment 1) It is a flowchart which shows the process of the display without a touch panel of this invention. (Embodiment 1) It is a flowchart which shows the process at the time of the touch coordinate data reception from another display. (Embodiment 1) It is a flowchart which shows the process in use of the touch function of the display with a touch panel of this invention. (Embodiment 1) It is explanatory drawing which shows an example of operation | movement of the multi-display system of this invention. (Embodiment 1) It is explanatory drawing which shows an example of operation | movement of the multi-display system of this invention. (Embodiment 1) It is explanatory drawing which shows an example of operation | movement of the multi-display system of this invention. (Embodiment 1) It is explanatory drawing which shows an example of operation | movement of the multi-display system of this invention. (Embodiment 1) It is a flowchart which shows the process of the display with a touchscreen of this invention. (Embodiment 2) It is a flowchart which shows the touch function effective state change notification process of this invention. (Embodiment 2) It is a flowchart which shows the process at the time of the touch coordinate data reception from another display of a display with a touch panel. (Embodiment 2) It is explanatory drawing which shows an example of the switching operation | movement of a touch function effective display. (Embodiment 2)

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In addition, the following description is an illustration in all the points, Comprising: It should not be interpreted as limiting this invention.

(Embodiment 1)
<Configuration of multi-display system 1>
A multi-display system 1 according to Embodiment 1 of the present invention will be described.
The multi-display system 1 configures one large screen (multi-display) composed of a plurality of screens by arranging a plurality of displays side by side in the vertical and / or horizontal directions, and displays a video on the entire multi-display. This system realizes screen display.

  Here, “large screen” is an expression when a plurality of display devices (displays) arranged vertically and horizontally are regarded as one screen, and a small screen represents one or more screens constituting a large screen. It is an expression when it is considered as one screen. The small screen displays contents independent of the large screen on one or more displays constituting the large screen. Therefore, when the small screen is displayed, the content of the large screen is not displayed at a position overlapping the small screen.

Hereinafter, the configuration of the multi-display system 1 according to the present invention will be described with reference to FIGS.
FIG. 1 is a block diagram showing a schematic configuration of a multi-display system 1 of the present invention. FIG. 2 is an explanatory diagram showing an example of daisy chain connection of a plurality of displays constituting the multi-display of FIG. FIG. 3 is a block diagram showing a part of the configuration of the multi-display system 1 of FIG.

  As shown in FIG. 1, the multi-display system 1 of the present invention includes a multi-display 10, a video output device with a touch panel control function (hereinafter, video output device 20), and a touch pen 30.

  In the first embodiment, the “touch input permission unit” of the present invention is realized by the cooperation of the display control unit 100 and the communication unit 103 or the touch operation detection unit 1071, and the “input image output unit” of the present invention is The display control unit 100, the touch panel 107, the touch panel communication unit 106 or the communication unit 103, and the video output device 20 are realized in cooperation. The “display determination unit” of the present invention includes the display control unit 100 and the display unit 102. And the video input / output unit 105, and the “control unit” of the present invention is realized by the cooperation of the display control unit 100 and the touch panel control unit 200.

The multi-display 10 according to the first embodiment includes nine displays 11 to 19 in total, three in the horizontal direction and three in the vertical direction.
Three of the nine displays 11 to 19 constituting the multi-display 10 are displays 11 to 13 with a touch panel and constitute the lowermost stage of the multi-display 10, and the remaining six are displays 14 to 19 without a touch panel. Thus, the middle stage and the top stage of the multi-display 10 are configured.

  The multi display 10 and the video output device 20 are connected via a coordinate data communication cable 41 and a video output cable 42 such as a DVI cable. The output video 2000 output from the video output device 20 is displayed as an image 1000 on the entire large screen of the multi-display 10.

  Here, as shown in an image 1000 in FIG. 1, “Enlarge” indicates that the image 2000 output from the video output device 20 is displayed on the entire “large screen” of the multi-display 10 including a plurality of displays 11 to 19. (Enlarge) display ".

  Further, as shown in an image 1001 in FIG. 10C, for any one of the displays 11 to 19, the display of the image 1000 on the entire “large screen” is stopped and the image 1001 is displayed on the “small screen”. The displays 11 to 19 will be referred to as “releasing the large display”.

  As shown in FIG. 2, the displays 11 to 19 are connected to each other by connecting a coordinate data communication cable 41 and a video output cable 42 in a daisy chain manner.

  The video output device 20 acquires touch coordinate data at the time of touch operation detection input from the displays 11 to 13 with a touch panel through the coordinate data communication cable 41, and outputs video signals to the displays 11 to 19 through the video output cable 42. To do.

The touch pen 30 includes an operation button 301 and a wireless transmission unit 302 (not shown). The touch pen 30 touches the display 11 to 13 with a touch panel to give an instruction or drawing by selecting an icon.
When the operation button 301 of the touch pen 30 is pressed, a predetermined signal is transmitted to the communication unit 103 of the displays 11 to 13 with a touch panel via the wireless transmission unit 302 to the displays 11 to 13 with a touch panel.

  FIG. 3 shows the leftmost column portion (display 11 with touch panel, displays 14 and 17 without touch panel) and video output device 20 of multi display 10 in multi display system 1 shown in FIG.

As shown in FIG. 3, the touch panel display 11 includes a display control unit 100, a storage unit 101, a display unit 102, a communication unit 103, an operation unit 104, a video input / output unit 105, a touch panel communication unit 106, and a touch panel 107.
The touch panel 107 includes a touch operation detection unit 1071, a touch coordinate data acquisition unit 1072, and a touch coordinate data output unit 1073.
The other displays 12 and 13 with a touch panel have the same configuration as the display 11 with a touch panel.

The display 14 without a touch panel includes a display control unit 100, a storage unit 101, a display unit 102, a communication unit 103, an operation unit 104, and a video input / output unit 105.
The other displays 15 to 19 without a touch panel have the same configuration as the display 14 without a touch panel.

The video output device 20 includes a touch panel control unit 200 and a video output unit 201.
The touch panel control unit 200 is directly connected to the display 11 with the touch panel through the coordinate data communication cable 41.
The video output unit 201 is directly connected to the display 11 with a touch panel through the video output cable 42.

The display 11 with a touch panel daisy-chains the coordinate data communication cable 41 with other displays 12 and 13 with a touch panel and displays 12 to 19 without a touch panel via the communication unit 103.
In addition, the display 11 with a touch panel daisy-chains the video output cable 42 with the other displays 12 and 13 with a touch panel and the displays 12 to 19 without a touch panel via the touch panel communication unit 106.

  Next, each component shown in FIG. 3 will be described.

The display control unit 100 is a circuit mainly composed of a microprocessor, and is an arithmetic device that performs control processing of various devices of the display, processing of an operating system, application software, and the like. In addition, the peripheral circuit may include an ASIC (Application Specific Integrated Circuit) that is an integrated circuit designed and manufactured for a specific application, and a circuit having other arithmetic functions.
The display control unit 100 controls the entire multi-display 10 in cooperation with other display control units 100.

  The storage unit 101 is a part that stores information necessary for realizing various functions of the displays 11 to 19 such as a control program, log information, user setting information, and fixed text for system information. As the storage unit 101, for example, a semiconductor element such as a RAM or a ROM, a storage medium such as a hard disk or a flash memory is used.

  The display unit 102 is a part that displays the input video signal. The display unit 102 is configured by, for example, a CRT display, a liquid crystal display, an EL display, and the like, and is a display device such as a monitor for displaying electronic data such as a processing state by an operating system or application software.

The communication unit 103 is a part that allows the displays 11 to 19 to communicate with each other through the coordinate data communication cable 41 to transmit and receive information data and control commands.
Further, it is a part that receives a wireless signal transmitted from the wireless transmission unit 302 of the touch pen 30.
For example, RS-232C, USB, LAN, etc. capable of bidirectional communication are used.

The operation unit 104 is an interface for operating the displays 11 to 19. The user executes instructions for the displays 11 to 19 through key operations on the remote controller or the display main body.
In the case of the displays 11 to 13 with a touch panel, the operation may be performed through a touch operation on the display unit 102 or the operation button 301 of the touch pen 30.

The video input / output unit 105 is a part that inputs video signals input from the video output device 20 via the video output cable 42 to the displays 11 to 19.
The video output cable 42 is daisy chained between the displays 11 to 19 to input / output video signals.

The touch panel communication unit 106 is a part that outputs the touch position information of the displays 11 to 19 to the touch panel control unit 200 of the video output device 20 through the coordinate data communication cable 41.
When the displays 12 to 19 that are not directly connected to the video output device 20 acquire touch position information, the touch position information is output to the display control unit 100 and is directly connected to the video output device 20 via the communication unit 103. The touch position information is transmitted to the touch panel communication unit 106 of the display 11 with the touch panel.

  The touch panel 107 is a part that is provided on the display surface of the display unit 102, detects touch operations such as the pen tip of the touch pen 30 and the fingertip of the user, and acquires and outputs touch coordinate data.

  The touch operation detection unit 1071 is a part that detects a touch operation on the touch panel 107.

  The touch operation detection method includes a resistive film method that detects voltage, a capacitance method that detects changes in capacitance, an optical method that detects by blocking infrared light, an ultrasonic method that detects ultrasonic waves, Any method such as an electromagnetic induction method using an electronic pen as an indicator may be used. Further, a method in which the position of a fingertip or the like can be detected without contact using infrared rays or the like may be used.

The touch coordinate data acquisition unit 1072 is a part that acquires touch coordinate data of a touch position such as the touch pen 30 detected by the touch operation detection unit 1071 as communicable touch coordinate data.
The timing for acquiring the touch coordinate data is performed at intervals of 500 ms, for example.

The touch coordinate data output unit 1073 is a part that outputs the touch coordinate data acquired by the touch coordinate data acquisition unit 1072 to the touch panel control unit 200 of the video output device 20.
As a method of outputting touch coordinate data from the touch coordinate data output unit 1073 to the touch panel control unit 200, when the displays 11 to 13 with a touch panel that detect the touch operation are connected to the video output device 20, the touch panel communication unit 106. Directly output the touch coordinate data to the video output device 20.

  On the other hand, when the displays 11 to 13 with a touch panel that have detected the touch operation are not connected to the video output device 20, the touch panel communication unit 106 of the other displays 11 to 13 with a touch panel passes through the communication unit 103 from the touch panel communication unit 106. To output the touch coordinate data to the video output device 20.

The touch panel control unit 200 is a part that reflects an image based on the touch coordinate data received from the touch panel displays 11 to 13 on the input image output from the video output unit 201.
Specifically, after the designated displays 11 to 13 with a touch panel detect the touch coordinate data, the touch coordinate data is transmitted to the video output device 20 via the coordinate data communication cable 41, and the video output unit 201 causes the touch coordinate data to be transmitted. The image is drawn at the coordinate position of the input image corresponding to the data.
For example, when the character “S” is written with the touch pen 30 on the touch panel displays 11 to 13, the touch panel control unit 200 outputs an image of “S” based on the touch coordinate data of the touch panel displays 11 to 13. This is reflected in the image output from the unit 201.

  The video output unit 201 is a part that outputs a signal related to an image such as a moving image or a still image and inputs the signal to the displays 11 to 19.

<Processing flow of displays 11 to 13 with a touch panel>
Next, based on FIGS. 4-6, the flow of a process of the displays 11-13 with a touch panel is demonstrated.
4-6 is a flowchart which shows the process of the displays 11-13 with a touchscreen of this invention.

  In step S1 of FIG. 4, the display control unit 100 determines whether or not touch coordinate data of a touch position from another display with touch panel 11 to 13 has been received (step S1).

  In step S1, when touch coordinate data is received from another display with touch panel 11-13 (when the determination in step S1 is Yes), the display control unit 100 in step S2 receives touch coordinate data from another display. Processing at the time of reception is performed (step S12). Thereafter, the display control unit 100 performs the process of step S3.

  The process at the time of receiving touch coordinate data from another display is a process of outputting touch coordinate data acquired by another display with touch panel 11 to 13 to the touch panel control unit 200 of the video output device 20. Details of the process when receiving touch coordinate data from another display will be described later.

  On the other hand, in step S1, when the touch coordinate data from another display 11 with a touch panel 11-13 is not received (when determination of step S1 is No), the display control unit 100 performs the process of step S3.

Next, in step S3, it is determined whether a start operation notification has been received (step S3).
In step S3, when the start operation notification is received (when the determination in step S3 is Yes), the display control unit 100 performs the process of step S4 (step S4).
On the other hand, when the start operation notification has not been received (when the determination in step S3 is No), the display control unit 100 repeats the determination in step S1 (step S1).

  Thus, by enabling the reception processing of the touch coordinate data from the other displays with touch panels 11 to 13, the display control unit 100 can display the other displays with touch panels 11 to 11 while waiting to receive the start operation notification. The touch coordinate data acquired by 13 can be output to the touch panel control unit 200 of the video output device 20.

  Next, in step S4, the display control part 100 of the displays 11-13 with a touch panel determines whether the communication part 103 received the touch coordinate data from another display (step S4).

When the touch coordinate data from another display is received in step S4 (when the determination in step S4 is Yes), the display control unit 100 performs the process at the time of receiving touch coordinate data from another display in step S5. This is performed (step S5).
Thereafter, the display control unit 100 performs the process of step S6.

  On the other hand, when the touch coordinate data from another display is not received in step S4 (when the determination in step S4 is No), the display control unit 100 performs the determination in step S6 (step S6).

  Next, in step S6, the display control unit 100 determines whether or not an end operation notification has been received (step S16).

In step S6, when the end operation notification is received (when the determination in step S6 is Yes), the display control unit 100 ends the processes of the displays 11 to 13 with a touch panel.
On the other hand, when the end operation notification has not been received (when the determination in step S6 is No), the display control unit 100 performs the determination in step S7 of FIG. 5 (step S7).

  In this way, even in the touch operation standby state after receiving the start operation notification, it is possible to receive touch coordinate data from other displays 11 to 13 with a touch panel.

Next, in step S7 of FIG. 5, the display control unit 100 determines whether the touch operation detection unit 1071 of the touch panel 107 has detected a touch operation with the touch pen 30 or the like (step S7).
When the touch operation detection unit 1071 of the touch panel 107 detects a touch operation with the touch pen 30 or the like (when the determination in step S7 is Yes), the display control unit 100 displays an enlarged display for the display in which the touch operation is detected in step S8. Is canceled (step S8).

  On the other hand, when the touch operation detection unit 1071 of the touch panel 107 does not detect a touch operation with the touch pen 30 or the like (when the determination in step S7 is No), the display control unit 100 performs the determination in step S4 (step S4). .

  Subsequently, in step S9, the display control unit 100 causes the touch coordinate data output unit 1073 to validate the output of touch coordinate data when a touch operation is detected (step S9).

Next, in step S10, the display control unit 100 determines whether or not the communication unit 103 has received touch coordinate data from another touch panel display 11 to 13 (step S10).
When touch coordinate data is received from another display with touch panel 11 to 13 (when the determination in step S10 is Yes), the display control unit 100 performs the process at the time of receiving touch coordinate data from another display in step S11. This is performed (step S21).
Thereafter, the display control unit 100 determines in step S12 in FIG. 6 (step S12).

  On the other hand, in step S10, when the touch coordinate data from another display with touch panel 11 to 13 is not received (when the determination in step S10 is No), the display control unit 100 determines the determination in step S12 in FIG. It performs (step S12).

  Next, in step S12 of FIG. 6, the display control unit 100 determines whether or not the communication unit 103 has received a predetermined end operation notification (step S12).

Next, when the communication unit 103 receives the end operation notification in step S12 (when the determination in step S12 is Yes), the display control unit 100 detects that the touch coordinate data output unit 1073 detects a touch operation in step S13. The output of the touch coordinate data is invalidated (step S13).
Thereafter, the display control unit 100 cancels the enlarge function in step S14 (step S14), and ends the processing of the displays 11 to 13 with a touch panel.

On the other hand, when the communication unit 103 has not received the end operation notification in step S12 (when the determination in step S12 is No), the display control unit 100 performs a process during use of the touch function in step S15 (step S15). S15).
The details of the process during the use of the touch function will be described later.
Thereafter, the display control unit 100 determines in step S10 (step S10).

<Processing flow of displays 14 to 19 without a touch panel>
Next, based on FIG. 7, the flow of processing of the displays 14 to 19 without a touch panel will be described.
FIG. 7 is a flowchart showing the processing of the displays 14 to 19 without a touch panel according to the present invention.

  In step S21 of FIG. 7, the display control unit 100 of the displays 14 to 19 without a touch panel determines whether or not the communication unit 103 has received touch coordinate data from another display 11 to 19 (step S21).

In step S21, when touch coordinate data is received from another display 11-19 (when the determination in step S21 is Yes), the display control unit 100 receives the touch coordinate data from another display in step S22. Processing is performed (step S22).
Thereafter, the display control unit 100 repeats the determination in step S21 (step S21).

  On the other hand, when the touch coordinate data from another display 11-19 is not received in step S21 (when the determination in step S21 is No), the display control unit 100 repeats the determination in step S21 (step S21). .

  As described above, when the touch coordinate data is received from the other displays 11 to 19, the displays 14 to 19 without a touch panel perform processing when the touch coordinate data is received.

<Process when receiving touch coordinate data from other displays 11-19>
Next, based on FIG. 8, the process at the time of the touch coordinate data reception from another display 11-19 is demonstrated.
FIG. 8 is a flowchart showing processing when touch coordinate data is received from another display 11-19.

In step S31 of FIG. 8, the display control unit 100 determines whether or not the displays 11 to 19 that have received the touch coordinate data are directly connected to the video output device 20 (step S31).
As a method for determining whether or not the video output device 20 is directly connected, for example, the touch panel communication unit 106 receives a predetermined signal transmitted from the touch panel control unit 200 of the video output device 20 through the coordinate data communication cable 41. Judgment is made based on whether or not

When the displays 11 to 19 that have received the touch coordinate data are directly connected to the video output device 20 (when the determination in step S31 is Yes), the display control unit 100 touches the video output device 20 in step S32. The coordinate data is transmitted (step S32).
Thereafter, the display control unit 100 ends the process when receiving the touch coordinate data from the other displays 11 to 19.

  On the other hand, when the displays 11 to 19 that have received the touch coordinate data are not directly connected to the video output device 20 (when the determination in step S31 is No), the display control unit 100 performs the determination in step S33 (step S33). S33).

  Next, in step S <b> 33, the display control unit 100 determines whether there is a display that has not received touch coordinate data (hereinafter, a display that has not received coordinate data) among other directly connected displays 11 to 19. Determination is made (step S33).

Here, as a method of determining whether or not there is a display that has not received coordinate data, first, when the communication unit 103 receives touch coordinate data, the reception flag is set to 1, and the communication unit 103 sets the touch coordinate data. When not receiving, the reception flag is set to 0.
Then, the display control unit 100 requests the directly connected displays 11 to 19 to transmit a reception flag, and reads whether the display flag of the displays 11 to 19 is 0 or 1, whereby the displays 11 to 19 are coordinated. It is determined whether the display has not received data.

  In step S33, if there is a display that has not received coordinate data (if the determination in step S33 is Yes), the display control unit 100 controls the communication unit 103 to touch all displays that have not received coordinate data in step S34. The coordinate data is transmitted (step S34), and then the processing at the time of receiving the touch coordinate data from another display 11-19 is terminated.

  On the other hand, when there is no display that has not received coordinate data (when the determination in step S33 is No), the display control unit 100 discards the touch coordinate data in step S35 (step S35), and then another display 11 is displayed. The process at the time of receiving touch coordinate data from ˜19 is terminated.

Next, an example of touch coordinate data transmission processing will be described with reference to FIG.
As shown in FIG. 2, it is assumed that the displays 11 to 19 are daisy chain connected.
When the display 13 with a touch panel is touched with the touch pen 30, the coordinates data non-reception display viewed from the display 13 with the touch panel becomes the displays 12 and 16 directly connected to the display 13 with the touch panel by daisy chain connection.
Therefore, the display 13 with a touch panel transmits touch coordinate data to both the displays 12 and 16.

Next, the coordinate data non-reception display viewed from the display 16 without the touch panel is the touch panel without the touch coordinate data yet received from the two displays 13 and 19 directly connected to the display 16 without the touch panel by the daisy chain connection. It becomes the display 19.
Therefore, the display 16 without a touch panel transmits touch coordinate data only to the display 19 without a touch panel.

Then, the case where touch coordinate data is transmitted to the display 15 without a touch panel through the display 18 without a touch panel is assumed.
At this time, the touch panelless display 18 that is only directly connected to the touch panelless display 15 by the daisy chain connection has already received the touch coordinate data, and therefore there is no display that has not received the coordinate data viewed from the display 15 without the touch panel.
Therefore, the display 15 without a touch panel discards the touch coordinate data without transmitting it.

Moreover, the case where touch coordinate data is transmitted to the display 11 with a touch panel through the display 12 with a touch panel is assumed.
At this time, since the display 11 with the touch panel is directly connected to the video output device 20, the touch coordinate data is transmitted to the video output device 20, and then the process ends.
Therefore, touch coordinate data is not transmitted to the display 14 without a touch panel that is directly connected to the display 11 with a touch panel by daisy chain connection.

  As described above, each of the displays 11 to 19 can transmit the touch coordinate data to the video output device 20 through the daisy chain connection when the touch coordinate data is received from the other displays 11 to 19.

<Processing while using the touch function>
Next, based on FIG. 9, the process in use of the touch function of the displays 11 to 13 with a touch panel will be described.
FIG. 9 is a flowchart showing processing during use of the touch function of the displays 11 to 13 with a touch panel according to the present invention.

In step S41 of FIG. 9, the display control unit 100 of the displays 11 to 13 with a touch panel determines whether a touch operation has been detected (step S41).
When the touch operation is detected (when the determination in step S41 is Yes), the display control unit 100 performs the determination in step S42 (step S42).
On the other hand, when the touch operation is not detected (when the determination in step S41 is No), the display control unit 100 repeats the determination in step S41 until the touch operation is detected (step S41).

Next, in step S42, the display control unit 100 determines whether or not the displays 11 to 13 with a touch panel are directly connected to the video output device 20 (step S42).
When the displays 11 to 13 with a touch panel are directly connected to the video output device 20 (when the determination in step S42 is Yes), the display control unit 100 transmits touch coordinate data to the video output device 20 in step S43. (Step S43). Thereafter, the display control unit 100 ends the process during use of the touch function.
On the other hand, when the displays 11 to 13 with a touch panel are not directly connected to the video output device 20 (when determination of step S42 is No), the display control unit 100 performs determination of step S44 (step S44).

Next, in step S44, the display control unit 100 determines whether there is a display that has not received coordinate data in the displays 11 to 13 with a touch panel (step S44).
When there is a display that has not received coordinate data in the displays 11 to 13 with the touch panel (when the determination in step S44 is Yes), the display control unit 100 transmits touch coordinate data to all displays that have not received coordinate data in step S45. (Step S45). Thereafter, the display control unit 100 ends the process during use of the touch function.
On the other hand, when there is no display that has not received coordinate data in the displays 11 to 13 with the touch panel (when the determination in step S44 is No), the display control unit 100 ends the process during use of the touch function.

  As described above, the touch panel displays 11 to 13 can transmit the touch coordinate data to the video output device 20 through the daisy chain connection when the touch operation is detected.

<Example of operation of multi-display system 1>
Next, an example of the operation of the multi-display system 1 according to the present invention will be described with reference to FIGS.
10-13 is explanatory drawing which shows an example of operation | movement of the multi-display system 1 of this invention.

  First, as illustrated in FIG. 10A, the user transmits a start operation notification by pressing the operation button 301 of the touch pen 30. When the communication unit 103 receives the start operation notification, the display control unit 100 of the displays 11 to 13 with a touch panel shifts to a selection waiting state.

  Next, as illustrated in FIG. 10B, the user selects one of the displays 13 with a touch panel among the displays 11 to 13 with a touch panel in a selection waiting state by touching the touch pen 30. At this time, the display 13 with a touch panel is confirmed as a touch function effective display, and the large function of the display 13 with a touch panel is canceled.

  Next, as shown in FIG. 10C, when the large function of the display 13 with the touch panel is canceled, the output image 1000 that has been displayed on the entire large screen on the display 13 with the touch panel is canceled, and the large display is displayed. An image 1001 that has not been displayed is displayed on the small screen of the display 13 with the touch panel.

  On the other hand, the displays 11 and 12 with a touch panel that are not selected by the touch pen 30 hold the selection waiting state even after the display 13 with the touch panel is determined as the touch function effective display.

  Note that the selection method of the touch function effective display is not limited to the selection operation with the touch pen 30. For example, other selection methods may be used as long as they can identify a display with a touch panel, such as a fingertip touch or a remote control operation.

  Next, as shown in FIG. 11A, when the display 11 with the touch panel determined as the touch function effective display is directly connected to the video output device 20, the display control unit 100 acquires the display 11 with the touch panel. The touch coordinate data is transmitted to the video output device 20 via the coordinate data communication cable 41.

  On the other hand, as shown in FIG. 11B, when the display 13 with the touch panel determined as the touch function effective display is not directly connected to the video output device 20, the display control unit 100 is connected via the daisy chain connection. Touch coordinate data is transmitted to all displays that have not received coordinate data in the order of displays 16, 19, 18 and 15 without touch panel, and in order of displays 12 and 11 with touch panel, along the path of the arrow 11 (B). .

  Then, when the touch panel display 11 directly connected to the video output device 20 receives the touch coordinate data, the display control unit 100 transmits the touch coordinate data to the video output device 20 via the coordinate data communication cable 41.

  Next, as illustrated in FIG. 12A, when the video output device 20 receives the touch coordinate data, an additional image 1002 newly drawn with the touch pen 30 of the display 13 with the touch panel is output from the video output device 20. The image 2000 is reflected as an additional image 2001.

Subsequently, as illustrated in FIG. 12B, the touch panel control unit 200 of the video output device 20 outputs an image 2000 output from the video output device 20 to the multi-display 10 via the video output cable 42.
As a result, an additional image 1003 reflecting the additional image 1002 of the display 13 with the touch panel is displayed on the entire large screen of the multi-display 10.

  Next, as shown in FIG. 13A, when the user writes an additional image 1004 (“Smile!”) On the display 13 with a touch panel with the touch pen 30, the image is output from the video output device 20 via the coordinate data communication cable 41. The reflected image 2000 is reflected as an additional image 2002, and further reflected as an additional image 1005 on the display image of the multi-display 10 via the video output cable 42.

Subsequently, when the user presses the operation button 301 of the touch pen 30 and transmits an end operation notification, the display control unit 100 of the display with touch panel 11 to 13 that has received the end operation notification performs an end operation.
As a result, as shown in FIG. 13B, the enlarge function of the display 13 with the touch panel is canceled, and the output image 1000 and the additional image 1005 are displayed on the entire large screen of the multi-display 10.

  Thus, when drawing an additional image with the touch pen 30, the user can select any of the displays 11 to 13 with a touch panel to cancel the enlarge function, and perform a touch operation on the output image 1001 displayed on the small screen. Thus, the user can perform a touch operation without being limited to the frame between the small screens constituting the multi-display 10.

(Embodiment 2)
Next, the flow of processing of the multi-display system 1 according to the actual embodiment 2 of the present invention will be described based on FIGS.
FIG. 14 is a flowchart showing processing of the displays 11 to 13 with a touch panel according to the second embodiment of the present invention. FIG. 15 is a flowchart showing the touch function valid state change notification process. FIG. 16 is a flowchart showing processing at the time of receiving touch coordinate data from other displays 11 to 19 according to the second embodiment of the present invention.

The processes of the multi-display system 1 according to Embodiment 2 of the present invention are all common except for some steps that are different from the processes of the multi-display system 1 according to Embodiment 1 of the present invention.
Here, steps common to the processing of the multi-display system 1 according to Embodiment 1 of the present invention are omitted, and only different steps are described.
Steps S51 and S53 to S56 in FIG. 14 correspond to steps S7 to S11 in FIG. Therefore, steps S52 and S57 not shown in FIG. 5 will be described.

In step S51 of FIG. 14, when the touch operation detection unit 1071 of the touch panel 107 detects a touch operation with the touch pen 30 or the like (when the determination in step S51 is Yes), the display control unit 100 determines that the touch function is valid in step S52. State change notification processing is performed (step S52).
Details of the touch function valid state change notification process will be described later.

  In step S56, after performing the process at the time of receiving touch coordinate data from another display, the display control unit 100 has already released the large function in step S57 and the touch coordinate data at the time of touch detection. It is determined whether or not the output of is invalid (step S57).

In step S57, when the large function has been canceled and the output of touch coordinate data at the time of touch detection is invalid (when the determination in step S57 is Yes), the display control unit 100 performs step S4 in FIG. Is determined (step S4).
On the other hand, when the enlarge function has been canceled and the output of the touch coordinate data at the time of touch detection is not invalid (when the determination in step S57 is No), the display control unit 100 performs the determination in step S12 of FIG. It performs (step S12).

<Touch function enabled state change notification processing>
Next, based on FIG. 15, the touch function valid state change notification process of the displays 11 to 13 with a touch panel will be described.
FIG. 15 is a flowchart showing the touch function valid state change notification process of the present invention.

  In step S61 in FIG. 15, the display control unit 100 of the displays 11 to 13 with a touch panel has not received the touch function valid state change notification among the other directly connected displays 11 to 19 (hereinafter, information not received). It is determined whether or not (display) exists (step S61).

When there is an information non-reception display (when the determination in step S61 is Yes), in step S62, the display control unit 100 transmits a touch function valid state change notification to all information non-reception displays (step S62).
On the other hand, when there is no information non-reception display (when the determination in step S61 is No), the display control unit 100 ends the touch function valid state change notification process.

<Process at the time of touch coordinate data reception from another display 11-19 of the displays 11-13 with a touch panel>
Next, based on FIG. 16, the process at the time of the touch coordinate data reception from the other displays 11-19 of the displays 11-13 with a touch panel is demonstrated.
FIG. 16 is a flowchart illustrating processing when touch coordinate data is received from other displays 11 to 19 of the displays 11 to 13 with a touch panel.

The processing at the time of receiving touch coordinate data from the other displays 11 to 13 of the displays 11 to 13 with a touch panel according to the second embodiment of the present invention is the touch coordinates from the other displays 11 to 19 according to the first embodiment of the present invention. All the processes are the same except that some steps are different from the process at the time of data reception.
Here, the steps common to the processing at the time of receiving the touch coordinate data from the other displays 11 to 19 according to the first embodiment of the present invention are omitted, and only different steps will be described.
Steps S72 to S76 in FIG. 16 correspond to steps S31 to S35 in FIG. 8, respectively. Therefore, steps S71 and S77 to 79 not shown in FIG. 8 will be described.

In step S71 of FIG. 16, the display control unit 100 of the displays 11 to 13 with a touch panel determines whether the data received by the communication unit 103 is touch coordinate data (step S71).
When the data received by the communication unit 103 is touch coordinate data (when the determination in step S71 is Yes), the display control unit 100 performs the determination in step S72 (step S72).
On the other hand, when the data received by the communication unit 103 is not touch coordinate data (when the determination in step S71 is No), the display control unit 100 determines that the touch function valid state change notification has been received and performs the determination in step S77. (Step S77).

Next, in step S77, the display control unit 100 determines whether or not the displays 11 to 13 with a touch panel are touch function effective displays (step S77).
When the display with touch panel 11 to 13 is a touch function valid display (when the determination in step S77 is Yes), the display control unit 100 invalidates the output of touch coordinate data at the time of touch detection in step S78 (step S78). S78).

Subsequently, in step S79, the display control unit 100 cancels the enlarge function (step S79).
Thereafter, the display control unit 100 ends the process at the time of receiving information from another display.

  On the other hand, when the displays 11 to 13 with a touch panel are not touch function effective displays (when the determination in step S77 is No), the display control unit 100 performs the determination in step S74 (step S74).

  As described above, by adding the processes of steps S71 and S77 to S79, when the touch-sensitive displays 11 to 13 in another selection waiting state detect a touch operation, it becomes possible to switch the touch function effective display.

<Example of switching operation of touch function enabled display>
Finally, an example of the switching operation of the touch function effective display will be described with reference to FIG.
FIG. 17 is an explanatory diagram illustrating an example of the switching operation of the touch function effective display.

  In FIG. 17A, it is assumed that among the three displays 11 to 13 with a touch panel, the displays 11 and 12 with a touch panel are in a selection waiting state, and the display 13 with a touch panel is confirmed as a touch function enabled state.

Here, as shown in FIG. 17B, it is assumed that the user touches the display 12 with a touch panel among the displays 11 and 12 with a touch panel waiting for selection with the touch pen 30.
At this time, as shown in FIG. 17C, the display 12 in the selection waiting state in which the touch operation is detected is confirmed as a new touch function valid display, so that the enlarge function of the display 12 with the touch panel is canceled and the image 1001 is displayed. Displayed on a small screen. Further, since the output of the touch coordinate data is also effective, the additional image 1004 drawn by the user with the touch pen 30 is also reflected as the additional image 2002 of the video output device 20.

  On the other hand, since the display 13 with a touch panel, which has been determined as a touch function valid display from the beginning, shifts to a selection waiting state, the output of coordinate data by touch detection becomes invalid. In addition, since the large function is enabled, the display of the image 1001 on the small screen of the display 13 with the touch panel is switched to the display of the image 1000 of the entire large screen of the multi-display 10.

  In this way, the user can easily switch the display with a touch function enabled by simply touching another display with touch panel 11 to 13 that is waiting for selection.

(Other embodiments)
1. In the first embodiment, two or more displays 11 to 13 with a touch panel may be simultaneously determined as touch function effective displays. (Embodiment 3)

  In this way, since two or more displays 11 to 13 with a touch panel can be touch-operated, a plurality of users can simultaneously draw on the separate displays 11 to 13.

2. In the selection operation standby state in FIG. 10A of the first embodiment, the selection waiting state may be notified to the user by performing processing such as blinking an LED (not shown) of the main body of the display with touch panel 11 to 13. Good. (Embodiment 4)

  In this way, the user can easily know which display with touch panel 11 to 13 is selected.

3. Instead of the process of step S33 in FIG. 8 of the first embodiment, the touch coordinate data is transmitted directly to the displays 11 to 19 by attaching identification IDs to the displays 11 to 19 directly connected to the video output device 20. You may be able to do it. (Embodiment 5)

  In this way, it is possible to directly transmit touch coordinate data to the displays 11 to 19 connected directly to the video output device 20 without transmitting the touch coordinate data to all the coordinate data unreceived displays one after another. Become.

As mentioned above,
(I) A multi-display system according to the present invention has a multi-display display function for arranging a plurality of displays vertically and horizontally to form one large screen composed of a plurality of small screens and displaying an input image on the entire large screen. And at least one of the plurality of displays is a touch display including a touch panel, a touch input permission unit that permits acceptance of touch input of the designated touch display, and the touch input according to a result of the touch input For each of the plurality of displays, an input image output unit that outputs an input image to the plurality of displays, normal display for displaying the input image on the entire small screen should be performed, or the input image should be displayed on the large screen. A display determination unit for determining whether to perform multi-display display to be displayed on the entire screen; A control unit that controls the touch input permission unit, the input image output unit, and the display determination unit, and the control unit includes the multi-display display when the touch display is designated. When the input image is displayed, the display determination unit is controlled to display the input image related to the normal display on the touch display, and the touch input permission unit is allowed to accept touch input of the touch display. And causing the input image output unit to output the input image corresponding to the result of the touch input to the plurality of displays.

In the present invention, the “large screen” is an expression when a whole of a plurality of display devices (displays) arranged vertically and horizontally is regarded as one screen, and the “small screen” is one of the “large screen”. This is an expression when the above screen is regarded as one screen. “Small screen” is to display contents independent of “large screen” on one or more displays constituting “large screen”. Therefore, when the “small screen” is displayed, the content of the “large screen” is not displayed at a position overlapping the “small screen”.
The “input image” is an image such as a moving image or a still image input to a plurality of displays.
The input image may be input to a plurality of displays in addition to being input separately to the plurality of displays, or may be sequentially input to the plurality of displays by daisy chain connection.
The “touch input permission unit” is a part that determines whether to enable or disable the touch input of the designated display with a touch panel.
As a specific designation method, for example, there is a case where the screen of a display with a touch panel is touched with a touch pen or the like. Moreover, you may designate by operation of a remote control etc.
The “input image output unit” is a part that outputs an input image to a plurality of displays constituting the multi-display. In addition, an input image corresponding to the result of touch input is output.
The “input image corresponding to the result of touch input” is designated or moved by an input image reflecting an image drawn on the touch panel with the touch pen or the fingertip of the user or an image erased by the touch pen or the touch pen, for example. An input image reflecting an image such as a pointer, an input image reflecting an icon operation result using a touch pen or the like.
The “display determining unit” is a part that determines whether the input image should be displayed on the entire small screen or the entire large screen for each of the displays constituting the multi-display.

Furthermore, the preferable aspect of this invention is demonstrated.
(Ii) The multi-display system according to the present invention further includes an input unit that receives a predetermined touch input end command, and the control unit receives a touch input to the touch input permission unit when the touch input end command is received. The display determination unit may be controlled to display the input image related to the multi-display display on the touch display.

  In this way, the result of the touch input is confirmed by a predetermined touch input end command, and the display of the input image reflecting the result of the touch input on the entire small screen is canceled, and the large screen is displayed. A multi-display system that returns to the entire display can be realized.

The “input unit” is a part that receives a command from the user. For example, a command is received by receiving a radio signal transmitted by operating a button such as a touch pen.
Moreover, you may receive the command by operation of the operation part of a remote control or a display.
Moreover, not only the command from a user but you may make it receive a completion | finish command when predetermined time passes.

  (Iii) In the multi-display system according to the present invention, when two or more of the plurality of displays are touch displays, after the touch input permission unit permits the touch input of the touch display, When the touch display is newly designated, the control unit controls the touch input permission unit to end acceptance of the touch input of the touch display that is permitted to accept the touch input, and is newly designated. The touch display may be allowed to accept touch input.

  In this way, it is possible to realize a multi-display system that can easily switch a display with a touch panel that is effective for touch input according to designation.

  (Iv) The multi-display system according to the present invention may further include a notification unit that notifies the touch display that can accept the touch input.

  In this way, it is possible to realize a multi-display system capable of grasping which of the displays constituting the multi-display is a display with a touch panel that can accept touch input.

The “notification unit” is a part that notifies the user of a display with a touch panel that can accept touch input. For example, the display body with a touch panel capable of accepting touch input is notified to the user by blinking the display main body with an LED or the like, or displaying OSD (On-Screen Display) predetermined image information. Moreover, it is not limited to the display of the image information on the display screen, but may be a voice notification.
Further, when a predetermined start signal is received, a display with a touch panel that can accept a touch input may be notified to the user.

  (V) It may be a display constituting the multi-display.

  In this way, when a multi-display is configured, the multi-display is configured by canceling the multi-display display of the display with the touch panel specified at the time of touch input, performing touch input, and returning to the multi-display display after the touch input. While enabling touch input on a small screen, it is possible to realize a display that reflects the result of touch input on a large multi-display screen.

Preferred embodiments of the present invention include combinations of any of the above-described plurality of embodiments.
In addition to the above-described embodiments, there can be various modifications of the present invention. These modifications should not be construed as not belonging to the scope of the present invention. The present invention should include the meaning equivalent to the scope of the claims and all modifications within the scope.

1: multi-display system, 10: multi-display, 11-13: display with touch panel, 14-19: display without touch panel, 20: video output device, 30: touch pen, 41: coordinate data communication cable, 42: video output cable, 100: Display control unit 101: Storage unit 102: Display unit 103: Communication unit 104: Operation unit 105: Video input / output unit 106: Touch panel communication unit 107: Touch panel 200: Touch panel control unit 201 : Video output unit, 301: Operation button, 302: Wireless transmission unit 1000, 1001, 2000: Image, 1002 to 1005, 2001, 2002: Additional image, 1071: Touch operation detection unit, 107 : Touched-coordinate data acquisition unit, 1073: the touch coordinate data output unit

Claims (3)

A plurality of displays are arranged vertically and horizontally to form one large screen composed of a plurality of small screens, and has a multi-display display function for displaying an input image on the entire large screen,
Two or more displays among the plurality of displays are touch displays provided with a touch panel,
A touch input permission unit that permits acceptance of touch input of the specified touch display;
An input image output unit that outputs the input image corresponding to the result of the touch input to the plurality of displays;
For each of the plurality of displays, it is determined whether to perform a normal display for displaying the input image on the entire small screen or to perform a multi-display display for displaying the input image on the entire large screen. A display determination unit;
A control unit that controls the touch input permission unit, the input image output unit, and the display determination unit;
The control unit controls the display determination unit to display the normal display on the touch display when the touch display is displaying the input image related to the multi-display display when the touch display is designated. The input image according to the display is displayed, the touch input permission unit is permitted to accept the touch input of the touch display, and the input image output unit is configured to display the input image according to the result of the touch input on the plurality of displays. to output,
After the pre-Symbol touch input authorization unit to allow acceptance of a touch input of the touch display, when another of the touch display is specified newly, the control unit controls the touch input permission unit, the touch The multi-display system, wherein the acceptance of the touch input of the touch display that is permitted to accept the input is terminated and the acceptance of the touch input of the newly specified touch display is permitted. An input unit for receiving a predetermined touch input end command;
When the control unit receives the touch input end command, the control unit causes the touch input permission unit to stop receiving the touch input, and controls the display determination unit to input the input image related to the multi-display display on the touch display. The multi-display system according to claim 1, wherein:   The multi-display system according to claim 1, further comprising a notification unit that notifies the touch display that can accept the touch input.