JP5649418B2 - Display screen adjustment device - Google Patents

Description

  The present invention relates to a display screen adjustment device, and more particularly to a display screen adjustment device having a function of identifying a display that is performing screen adjustment in a multi-display.

  Today, large-screen display devices are installed in stations, exhibition halls, etc. for the purpose of viewing by an unspecified number of people. As one of such large screen display devices, not only one large screen display device but also a plurality of independent and relatively small display devices are arranged in a matrix so that one large screen as a whole. A multi-display device constituting the display device is used.

  When adjusting the screen of a multi-display device (simply referred to simply as a multi-display) composed of a plurality of display devices (simply referred to as a display or a monitor), that is, adjusting various video characteristics The display to be selected is selected, and each display is performed while being sequentially observed.

  For example, Patent Document 1 discloses a multi-display that is formed by a normal personal computer and outputs an adjustment signal in order to easily select a specific display to be adjusted when adjusting the video characteristics of the multi-display device. Adjustment device 6 and adjustment device 5 for adjusting the video characteristics of each display device of the multi-display device according to the output adjustment signal, and display array 13 is arranged on screen 6a of device 6 different from each display device. After the display, the specific display 13a is selected by the operation of the external mouse, and the adjustment item of the display further selected on the screen 6a of the device 6 is selected, and then the identification number and the adjustment item of the selected display 13a are selected. Multi-display adjustment that sends an adjustment signal to the adjustment device 5 Devices have been proposed.

  Further, Patent Document 2 describes a multi-display screen adjustment method in which individual screen adjustment is performed for each display device constituting a multi-display by remote operation using a single remote controller. In particular, the same adjustment detail information screen is displayed on all display devices by display key input, and then the screen adjustment menu is displayed only on the specific display device corresponding to the ID number by inputting the specific ID number. It is described that the screen adjustment of the specific display device on which the menu is displayed is performed and the other display devices return to the predetermined initial screen so that the screen adjustment work of each display device can be performed efficiently. ing.

Japanese Patent Laid-Open No. 2004-211986 JP 2006-254275 A

However, when a personal computer is used to select a display device to be adjusted and screen adjustment is performed, the selection operation and the like must be performed by looking at the screen of the personal computer, and an actual multi-display is seen. It is difficult to figure out which display is currently being adjusted.
In particular, the larger the number of displays that make up the multi-display, the more difficult it is to find out which display the adjustment target is, and it is difficult to distinguish whether it is well adjusted as intended after adjustment. is there.

  Also, when selecting the display to be adjusted using one remote controller, the screen adjustment menu is displayed on the selected display itself after the selection target display is selected. You can see which display is. However, in order to select the display to be adjusted, the operator confirms the ID number of the display device to be adjusted while looking at the adjustment detailed information screen displayed at the same time, and inputs the ID number by key input. The operation burden for operator confirmation and selection is large. Further, as the number of displays constituting the multi-display increases, this confirmation and selection operation becomes more troublesome.

  Therefore, the present invention has been made in consideration of the above circumstances, and when adjusting each display of a multi-display, it is easy to select a display to be adjusted, and after the selection, the current screen is adjusted. It is an object of the present invention to provide a display screen adjustment device capable of performing identification display so that it is clearer which display is performing.

The present invention relates to a display screen adjustment device provided for each display in order to perform screen adjustment of a multi-display composed of a plurality of displays, and a signal for analyzing a screen adjustment request signal input from an external device An analysis unit, a screen adjustment unit that adjusts the screen of its own display based on an analysis result of the signal analysis unit, a communication unit that performs information communication between other adjacent displays, and the signal analysis unit, When it is determined that the input screen adjustment request signal is to select the own display as an adjustment target, the adjustment target instruction is displayed on the screen of another display adjacent to the own display. An instruction generation unit that generates an instruction request signal and transmits the instruction request signal to a predetermined adjacent display, and the communication unit displays an instruction on its own display. When receiving the instruction request signal for requesting thereby, there is provided a display screen adjusting apparatus characterized by comprising a orders display unit for the adjustment target orders displayed on its display.
According to this, since the adjustment target instruction is displayed on the screen of another display adjacent to the self display selected as the adjustment target, the operator who performs the screen adjustment displays the display that is the current adjustment target. , Visually recognizable.

Here, the adjustment target instruction display is a graphic display indicating the direction in which the adjustment target display exists. For example, this display is an arrow display as described later.
In addition, the multi-display is configured by a display group in which a plurality of displays are arranged in a horizontal direction and a vertical direction and arranged in a matrix.
Furthermore, the display on which the adjustment target instruction is displayed is at least two displays adjacent to the adjustment target display.

Further, when the multi-display includes a plurality of displays arranged in a matrix in the horizontal direction and the vertical direction, any one of the displays in the left direction or the right direction of the display selected as the adjustment target. The adjustment target instruction is displayed on any one of a display and a display in an upward direction or a downward direction of a display selected as an adjustment target.
Thereby, in a multi-display composed of displays arranged in a matrix, the display currently being adjusted can be clearly recognized.

In addition, a predetermined screen adjustment item is displayed on the display selected as the adjustment target.
Furthermore, the external device is a device capable of wirelessly transmitting the screen adjustment request signal. The external device is, for example, a remote control shown in FIG.

  In addition, the external device includes a display selection unit including a movement button for selecting a display to be adjusted by moving in any one of up, down, left and right directions among the plurality of displays arranged in the matrix. The adjustment target display is changed to a desired display by depressing one of the movement buttons of the display selection unit.

Here, when the adjustment target display is changed from the first display to the second display by pressing any one of the display selection buttons, the first display is the adjustment target display. The adjustment target instruction displayed at the time is deleted, a predetermined screen adjustment item is displayed on the second display that is the adjustment target, and the adjustment target instruction is displayed on one of the displays adjacent to the second display. It is characterized by displaying.
According to this, the operator can change the display to be adjusted only by performing an easy operation, and the operation burden can be reduced.

  According to the present invention, since the adjustment target instruction is displayed on the screen of another display adjacent to the self display selected as the pacing target, the operator who performs the screen adjustment visually displays the adjustment target display. It can be clearly recognized.

It is a schematic block diagram of one Example of the multi display of this invention. 1 is a configuration block diagram of an embodiment of a screen adjustment device for a display constituting a multi-display of the present invention. FIG. It is explanatory drawing of the connection form of one Example of the display arrange | positioned at the matrix form which comprises the multi display of this invention. It is explanatory drawing of one Example of the display content of the multi-display of this invention. It is explanatory drawing of one Example of the arrow display displayed on the multi-display of this invention. It is explanatory drawing of one Example of the remote control of this invention. It is explanatory drawing of one Example of the change of the screen display at the time of adjustment object change operation of this invention. It is explanatory drawing of one Example of the change of the screen display at the time of adjustment object change operation of this invention. It is a flowchart of one Example of the selection process and the instruction | indication display process of the adjustment target of this invention. It is a flowchart of one Example of the selection process and the instruction | indication display process of the adjustment target of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by description of the following examples.
<Configuration of multi-display of the present invention>
FIG. 1 shows a schematic configuration diagram of an embodiment of a multi-display according to the present invention.
In FIG. 1, the multi-display 11 of the present invention is composed of a display group in which 16 displays 12 (D1-D16) are arranged in a matrix by arranging 4 in the vertical direction and 4 in the horizontal direction.
Each display 12 has a functional block as shown in FIG.

The multi-display 11 includes a light receiving unit 13 that receives a wireless optical signal from the remote controller 21. Based on the received optical signal, the operation of each display, in particular, display selection processing and screen adjustment processing is performed.
In FIG. 1, the multi-display 11 is composed of 16 displays. However, the present invention is not limited to this, and a 2 × 2 matrix arrangement composed of 2 vertical units and 2 horizontal units is used. A matrix arrangement, a 3 × 4 matrix arrangement, or the like may be used. In general, a multi-display having an n × m matrix arrangement may be used.

The remote controller 21 is an external device capable of wirelessly transmitting a screen adjustment request signal to be described later, and transmits an optical signal for controlling the operation of the multi-display 11 to the light receiving unit 13. And an input unit 23.
Light is emitted from the light emitting unit 22, but the wavelength of the emitted light is not particularly limited.
For example, either visible light or infrared light may be used. Alternatively, electromagnetic waves in a frequency band used for wireless communication may be used.
Also, the optical signal standard, the format of data carried on the optical signal, the communication protocol, and the like are not particularly limited, and the same ones that are currently commercially available may be used.
The input unit 23 is a part for inputting an instruction for controlling the operation of the multi-display 11, and various input devices such as a keyboard and a mouse can be used, and are not particularly limited.
For example, in the present invention, a remote controller as shown in FIG. 6 described later can be used.

FIG. 2 shows a configuration block diagram of an embodiment of a screen adjustment device for one display 12 constituting a multi-display.
One display 12 mainly includes a control unit 101, a display unit 102, a display control unit 103, a storage unit 104, and a communication unit 105.
In the present invention, in order to adjust the screen of the multi-display, a screen adjustment device is provided for each display.
One screen adjustment device mainly corresponds to a part configured by the control unit 101, the storage unit 104, and the communication unit 105.
Here, the display unit 102 is a part for displaying an image, and an LCD, an organic EL, a PDP, a CRT, or the like is used.
The display control unit 103 is a part that receives video data displayed on the display unit 102 from the control unit 101, converts the video data into data that can be viewed on the display memory, and gives the data to the display unit 102. .

The storage unit 104 is a part that stores various information necessary for display on the display 12, for example, display information 121 of each display constituting the multi-display 11 and display content itself displayed on the display unit 102. Information 122 is stored.
The arrangement information 121 includes its own ID number (n), the number of horizontal display units (A), the number of vertical display units (B), and the like. The display information 122 includes, for example, a list display of screen adjustment items (OSD (On-Screen Display) information), arrow images indicating the respective directions of up, down, left, and right.

In addition, the storage unit 104 includes request signal data included in the optical signal transmitted from the light receiving unit 13, instruction information (command) transmitted to another display, data used for screen adjustment, a control unit In addition, a program or the like indicating the operation procedure of the communication unit is stored.
The storage unit 104 may use any of various storage devices such as RAM, ROM, flash memory, and hard disk. For example, information that is difficult to disappear, such as an ID number and setting information, is stored in a flash memory or a hard disk, which is a nonvolatile memory, and display information, data generated during screen adjustment, and the like are stored in a RAM. A screen adjustment program for a display, a control program for performing communication via a communication unit, and the like are stored in a ROM or a hard disk.

  The communication unit 105 is a part that performs information communication with the other display 12, and is a part that transmits the instruction information generated by the control unit 101 to the other display. Various communication connection forms are possible for the plurality of displays 12, but here, the connection form is set so as to be able to communicate with two adjacent displays (that is, daisy chain connection). .

FIG. 3 is an explanatory diagram of an example of the arrangement and connection of the respective displays constituting the multi-display 11 focusing on the communication unit.
For example, the communication unit (105-D03) of the display D03 is connected to the communication units 105 of the two adjacent displays D02 and D04. That is, one display does not communicate with all other displays but communicates information with other adjacent displays.
In this case, the first and last displays (D01, D13) of the daisy chain are connected to only one adjacent display.
The light receiving unit 13 is connected to the first display D01, and the optical signal received by the light receiving unit 13 is given to the control unit 101 of the display D01 via the communication unit 105-D01 of the display D01. To do.

In the configuration of FIG. 3, the optical signal given from the light receiving unit 13 is first received via the communication unit (105-D01) of the first display D01. Thereafter, the control unit 101 of the display D01 analyzes the contents of the optical signal, generates a request signal for other displays (D02 to D16) as necessary, and sends it to the communication unit 105 of the second display D02. Send.
The second display D02 that has received the request signal analyzes the request signal and further transmits the request signal to the third display D03 if necessary.
Similarly, in the case of FIG. 3, the request signals are transmitted in the order of displays D03, D04, D08, D07, D06, D05, D09, D10, D11, D12, D16, D15, D14, and D13. become.

The control unit 101 is a part that performs screen adjustment processing on the multi-display based on the optical signal received by the light receiving unit 13.
In the present invention, the control unit 101 mainly includes a signal analysis unit 111, an instruction generation unit 112, a screen adjustment unit 113, and an instruction display unit 114.
The control unit 101 can be composed of a microcomputer equipped with a CPU, ROM, RAM, I / O controller, timer, and the like, and based on a control program stored in the ROM or the like, the CPU organizes various hardware. By operating automatically, the function performed by the signal analysis unit as described above is executed.

The signal analysis unit 111 is a part that analyzes the contents of an optical signal input from an external device (remote controller) and received by the light receiving unit 13. For example, it is analyzed whether the content of the optical signal includes a screen adjustment request signal for its own display.
If the input request signal is a screen adjustment request for its own display, it instructs the screen adjustment unit 113 to make the adjustment request.
Furthermore, when the signal analysis unit determines that the input screen adjustment request signal is to select its own display as an adjustment target, the adjustment target is displayed on the screen of another display adjacent to its own display. An instruction request signal for displaying an instruction is generated, and the instruction request signal is transmitted to a predetermined adjacent display.

If the content of the received optical signal is an instruction for another display, the instruction generation unit 112 is requested to generate an instruction request signal for the other display.
Further, according to the present invention, when the communication unit 105 receives an instruction request signal for requesting an instruction display on its own display, the instruction display unit 114 displays an adjustment target instruction on its own display unit 102 according to the instruction request signal. do.
Further, when a screen adjustment request for its own display is received, an adjacent display for displaying an arrow is specified, and an arrow display request is transmitted to the specified display.

  The instruction generation unit 112 is a part that generates instruction information to be given to another display and transmits the generated instruction information via the communication unit 105. The generated instruction information is, for example, the instruction request signal described above.

The screen adjustment unit 113 is a part that executes screen adjustment of its own display based on the analysis result of the signal analysis unit when a screen adjustment request is received. The screen adjustment itself may be performed in the same manner as conventionally performed.
For example, the screen adjustment item and the current adjustment state are displayed on the display screen of the own display selected as the adjustment target, and one item to be adjusted is selected by an input operation of the remote controller, and the selected item is selected. Make adjustments.
The instruction display unit 114 is a part that displays an adjustment target instruction on its own display. That is, when an instruction request signal for requesting an instruction display on its own display is received via the communication unit, an adjustment target instruction display (arrow display) is displayed on its own display unit 102.

The above is the description of the constituent blocks of one display 12 of the present invention.
In this invention, when screen adjustment of one display is performed, a display for instructing the display to be adjusted is displayed on the screens of a plurality of displays adjacent to the display to be adjusted by performing a selection operation of the display to be adjusted. (Adjustment target instruction display) is performed.
That is, unlike the adjustment target display, a display indicating the direction in which the adjustment target display exists is performed on the screens of at least two adjacent displays.
FIG. 4 shows an explanatory diagram of one embodiment of the display contents of the multi-display of the present invention.

For example, as shown in FIG. 4A, when the display selected as the adjustment target is D01, “arrow” is displayed as the adjustment target instruction display on the two adjacent displays D02 and D05.
Here, an “upward arrow” indicating the direction in which the display D01 is present is displayed on the display D05 below the display D01 to be adjusted, and “left” indicating the direction in which the display D01 is present on the right display D02. "Direction arrow" is displayed. That is, a graphic display indicating the direction in which the display to be adjusted exists is displayed on the display adjacent to the adjustment target.
If such display is performed, the operator can visually recognize the display 12 to be adjusted from now on while actually viewing the multi-display 11.
In particular, when nothing is displayed on the selected adjustment target display, or when the same screen is displayed on the adjustment target display and another display, the adjustment target instruction as described above is displayed on the adjacent display. If the display (arrow display) is performed, the display to be adjusted can be clearly recognized.

Further, a display screen (OSD display) showing screen adjustment items as shown in FIG. 4B is displayed on the screen of the display D01 selected as the adjustment target.
The displayed data of each item of screen adjustment indicates the current adjustment data of the display D01.
As described above, the OSD display as shown in FIG. 4B is displayed on the adjustment target display D01, and the display (D02, D05) adjacent to the adjustment target display D01 is displayed as shown in FIG. If the adjustment target instruction is displayed, the operator can clearly recognize the adjustment target display even when the number of displays constituting the multi-display is large.
The adjustment target instruction display is not limited to the arrow display as shown in FIG. 4A, and may be another display (graphic, character, symbol, etc.) that indicates that this is the adjustment target display. Moreover, you may display using the color and pattern which can be distinguished clearly from the display on the screen of another display.

<Explanation of arrow display>
FIG. 5 shows an explanatory diagram of another embodiment in which an arrow indicating the adjustment target is displayed.
FIG. 5A shows an example of arrow display when the display D07 of FIG. 3 is selected as an adjustment target.
Here, a case is shown in which arrows are displayed on two displays (D06, D11) among the four displays (D03, D06, D08, D11) adjacent to the display D07. The direction of the arrow is a direction indicating the direction in which the display to be adjusted exists.
FIG. 5B shows an example of arrow display when the display D13 of FIG. 3 is selected as an adjustment target. Here, arrows are displayed on two adjacent displays (D09, D14).
As described above, when the multi-display 11 includes a plurality of displays 12 arranged in a matrix in the horizontal direction and the vertical direction, any of the displays in the left direction or the right direction of the display selected as the adjustment target is selected. The adjustment target instruction is displayed on any one of the one display and the upper or lower display selected as the adjustment target.

<Description of remote control>
FIG. 6 shows an explanatory diagram of an embodiment of the remote controller 21 of the present invention.
As shown in FIG. 1, the remote controller 21 includes a light emitting unit 22 and an input unit 23, and when a specific button (key) of the input unit 23 is pressed, a predetermined value is emitted from the light emitting unit 22. Light is emitted.
The input unit 23 includes a plurality of buttons (keys). For example, as illustrated in FIG. 6, the input unit 23 includes an adjustment item selection button 25 and a display selection button 26. However, other buttons may be provided, and a key for turning on / off the entire multi-display, a display selection confirmation key, a screen adjustment request key, an arrow display deletion key, and the like may be provided.

In FIG. 6, both the adjustment item and display selection buttons (25, 26) are configured by buttons (movement buttons) indicating up / down / left / right movement directions.
For example, when the downward movement button of the adjustment item selection button 25 is pressed, the adjustment item one below the currently selected item is selected from the adjustment items shown in FIG. Become.
Further, when the rightward movement button of the display selection button 26 is pressed, the display to be adjusted is shifted rightward by one.

The display selection button 26 includes a plurality of movement buttons for selecting a display to be adjusted, and by pressing one of the movement buttons indicating the up, down, left, and right directions, the display selection button 26 is selected from the plurality of displays arranged in a matrix. Then, the display to be adjusted is moved to the display in any one of the upper, lower, left and right directions.
By the operation indicating such movement, the display to be adjusted can be easily changed to a display desired by the operator.

In addition, when the display to be adjusted is changed from the first display to the second display in this way, the adjustment target instruction display displayed when the first display before the change is the adjustment target ( Delete the arrow).
Then, a predetermined screen adjustment item as shown in FIG. 4B is displayed on the second display that is newly adjusted, and the adjustment target instruction is displayed on one of the displays adjacent to the second display. (Show arrow). FIGS. 7 and 8 to be described later show an embodiment when the display is changed.

Since an ID number is assigned to each display in advance, the operator may directly input the ID number using a numeric keypad.
However, when the number of displays is large, it is necessary to confirm what number the ID number of the display to be adjusted is, which is troublesome for the operator and a heavy operation burden.
In comparison, when using the up / down / left / right movement buttons to select the display to be adjusted while looking at the multi-display, it may be necessary to press the button repeatedly. The operation burden on the operator is considered to be relatively small.

<Description of adjustment target display selection process>
FIG. 7 and FIG. 8 are explanatory diagrams of an embodiment of selection processing of a display to be adjusted by remote control operation. Here, an example of a screen change at the time of an adjustment target changing operation is shown.
FIG. 7 illustrates an explanatory diagram in the case where the adjustment target is moved from the display D05 to the display D06 in FIG.
FIG. 7A shows a display state when the currently selected display to be adjusted is D05.
At this time, the screen shown in FIG. 4B is displayed on the display D05, which is an adjustment target, and arrows are displayed on the two adjacent displays (D06, D09). Thereby, it can be clearly recognized that the current adjustment target is the display D05.

In the display state of FIG. 7A, it is assumed that the operator depresses the rightward movement button among the display selection buttons 26 on the remote controller 21.
At this time, the display state is changed as shown in FIG. That is, the adjustment target is changed to the display D06 on the right side of the display D05, and the display of FIG. 4B is displayed on the screen of the display D06. Furthermore, arrows are displayed on two displays (D07, D10) adjacent to the display D06 to be adjusted.
Thereby, it can be visually recognized clearly that the adjustment target has been changed from the display D05 to D06.
Such a display change corresponds to the operation of the operator (depressing the rightward movement button), and is an operation that is very easy to understand for the operator.

FIG. 8 shows a change in display state when the display to be adjusted is changed from the display D11 of FIG. 3 to the display D07.
FIG. 8A shows the display state before the change. The display shown in FIG. 4B is displayed on the display D11 to be adjusted, and arrows are displayed on the two adjacent displays (D12, D15). Yes.
At this time, if the operator depresses the upward movement button of the display selection buttons 26, the display state is as shown in FIG. That is, the adjustment target displayed in FIG. 4B is the display D07, and arrows are displayed on the two displays (D08, D11) adjacent thereto.

5, FIG. 7 and FIG. 8 all show arrows on only two adjacent displays. However, the present invention is not limited to this, and four displays that are adjacent in all directions are displayed. An arrow may be displayed. Alternatively, three adjacent displays may be used.
Further, if the operator desires and the adjustment target is sufficiently visible, an arrow may be displayed on only one of the four adjacent displays.
The number and positions of such displays for arrows may be set in advance by the operator.

Further, during the adjustment operation, the arrow display may not be continuously lit and displayed, but the arrow may be blinked for a certain time (for example, one minute) from the time when the display to be adjusted is selected. . Thereby, it is considered that the selection target becomes easier to understand.
Further, when the adjustment target is determined and the screen is actually adjusted, the arrow display may be erased by pressing a specific button on the remote control.
Conversely, when it is desired to clarify the adjustment target in the state where the arrow display is erased, the arrow display temporarily erased may be restored by depressing a specific button on the remote controller. That is, lighting, blinking, and extinguishing of the arrow display may be controlled by an operator's intentional operation.

<Adjustment target selection process and instruction display process>
9 and 10 show a flowchart of an embodiment of the adjustment target selection process and the instruction display process of the present invention.
Here, the multi-display 11 has a matrix configuration in which A displays 12 are arranged in the horizontal direction, B displays 12 are arranged in the vertical direction, and a total of A × B displays 12 are arranged.
Each display 12 is assigned a continuous ID number (n) starting from 1, the upper left display ID number is “1”, and the lower right display ID number is “A × B”. And
In the A display in the same row in the horizontal direction, the ID number of the leftmost display is the smallest, the ID number of the right display increases sequentially by 1, and the ID number of the rightmost display is the largest And
Furthermore, if the ID number of the rightmost display in a certain column is “n”, the ID number of the leftmost display in the next lower column in the vertical direction is “n + 1”.
According to the above rules, consecutive ID numbers starting from 1 are assigned in advance to all the displays 12 constituting the multi-display and stored in the storage unit 104 of each display.
For example, “5” is stored in advance as the ID number of its own display in the storage unit 104 of the display D05 whose ID number is “5”.

Further, processing such as selection of screen adjustment items and selection of a display to be adjusted is performed based on the optical signal transmitted from the remote controller.
In the following embodiments, the request signals included in the optical signal and transmitted include an adjustment request signal, an arrow display instruction request signal, and an arrow erasure request signal. In addition, the arrow display instruction request includes information indicating the direction of the arrow (one of left, right, up, and down). However, different instruction request signals may be used for each of the four directions.
Further, these request signals may include the ID number of the display that makes the request. If the same request signal is sent to all the displays, information indicating all (for example, ALL) may be included. Good.

Further, in the remote control of FIG. 6, the display selection button 26 has only up / down / left / right movement keys, and the ID number cannot be directly input from the remote control. M may be compared with its own ID number n to check whether it is a request signal for its own display.
The variable M is initialized to 1, for example, on all displays when the power is turned on.

In this case, when the leftward movement button of the display selection button 26 of the remote controller 21 is pressed, for example, a request signal including information for decrementing the value of M is transmitted from the remote controller 21 to the light receiving unit 13.
When the rightward movement button is pressed, a request signal including information for incrementing the value of M by 1 is transmitted.
Further, when the upward movement button of the display selection button 26 is pressed, the value to be reduced differs depending on the number of horizontal displays (A), and therefore a request signal including information indicating upward movement is transmitted. . In this case, the control unit 101 of each display may obtain the ID number of the indicated display from the received information indicating the upward movement and the current value of M.
For example, in the matrix-shaped multi-display 11 including 16 4 × 4 displays shown in FIG. However, if the current M is M = 1 to 3, (M−4) +16 may be obtained.
Further, when the downward movement button is pressed, a request signal including information indicating downward movement may be transmitted. In this case, as the ID number of the instructed display, M + 4 is obtained when the current M is 1 to 12, or (M + 4) −16 is obtained when M = 13 to 16.

The processing in FIGS. 9 and 10 is performed by the control unit 101 of each display based on a control program stored in advance in each storage unit 104.
In step S1 of FIG. 9, the control unit 101 sets initial values for the three variables (A, B, n).
However, if it is set in advance as a fixed value, this step S1 is not necessary, and the fixed value may be used as it is.
Here, as described above, A is the number of horizontal displays, B is the number of vertical displays, and n is the ID number of its own display.
For example, in the multi-display 11 shown in FIG. 3, A = 4 and B = 4, and n is set to a different integer value for each display.

In step S2, the signal analysis unit 111 of the control unit 101 always checks whether or not an optical signal from the remote controller 21 is received. If received, the data included in the received optical signal is analyzed.
By this analysis, it is known which request signal is the received optical signal, and which display is requested.

In step S3, the signal analysis unit 111 checks whether the received data is an adjustment request signal and the request signal includes information for selecting its own ID number n.
If the received optical signal is not an adjustment request signal, or if it is not an adjustment request signal and does not select its own ID number n, the process proceeds to step S16 in FIG.

If this request signal directly includes an ID number, the received ID number is compared with its own ID number n stored in advance in the storage unit 104 to determine whether or not its own ID number has been selected. Can check.
However, as described above, when the received request signal does not include the ID number and includes information for increasing / decreasing the common variable M corresponding to the moving direction button of the remote controller, the received information The value of the variable M taking into account the movement of either left or right is obtained, and the value of M is regarded as the ID number of the display requested by the request signal, and the self ID number n stored in the storage unit 104 in advance By comparing, it is checked whether or not its own ID number has been selected.

If the received adjustment request signal is a signal for selecting its own ID number n, the process proceeds to step S4.
In step S4, the screen adjustment unit 113 displays the screen adjustment items as shown in FIG. As a result, a list of adjustment items is displayed on the display screen of the display 12 to be adjusted designated by the operation of the remote controller 21.
Through the processing in steps S5 to S11, the instruction generation unit 112 determines an adjacent display for displaying an arrow, and transmits an instruction request signal for displaying the arrow to the determined adjacent display.

In step S5, the self ID number (n) / the number of units in the horizontal direction (A) is calculated, and the remainder is obtained and compared with 1.
For example, when the self ID number is n = 5 and the number in the horizontal direction is A = 4, the remainder is 1. At this time, since the remainder is 1 or more (residue ≧ 1), the process proceeds to step S6. On the other hand, if the remainder is less than 1, the process proceeds to step S7.

In step S6, the instruction generation unit 112 transmits an instruction request signal for displaying a left arrow on the display with the ID number n + 1.
For example, when the self ID number (n) is 5 and the lateral number (A) is 4, the remainder is 1, so the process proceeds to step S6. Here, the instruction generation unit 112 generates an instruction request signal that includes an ID number 6 obtained by adding 1 to its own ID number (n = 5), which means to direct the left direction, and the ID number 6 (= An instruction request signal for displaying a left arrow is sent to the display n + 1). As a result, an arrow indicating the left direction is displayed on the display D06 of ID number 6 adjacent to the right of the display D05 to be adjusted.
Thereafter, the process proceeds to step S8.

On the other hand, in step S7, an instruction request signal for displaying a right arrow is transmitted to the display having the ID number n-1.
For example, when n = 8 and A = 4, since the remainder = 0, the instruction generation unit 112 causes the display of ID number 7 (= n−1) to display a right arrow on the display in step S7. Send a signal. Thereby, an arrow indicating the right direction is displayed on the display D07 of ID number 7 adjacent to the left of the display D08 to be adjusted.

In step S8, it is checked whether or not the self ID number n is larger than the number A in the horizontal direction.
If n> A, the process proceeds to step S9; otherwise, the process proceeds to step S10.
In step S9, it is checked whether or not the mathematical formula n> A × (B-1) is satisfied.
If this mathematical formula is satisfied, the process proceeds to step S11, and if not, the process proceeds to step S10.
In step S10, the instruction generation unit 112 transmits an instruction request signal for displaying an upward arrow to the display having the ID number n + A.
On the other hand, in step S11, the instruction generation unit 112 transmits a down arrow display instruction request signal to the display having the ID number n-A.

For example, when n = 3 and A = 4, since n> A is not satisfied, the process proceeds to step S10, and an instruction request signal for displaying an upward arrow is transmitted to the display D07 whose ID number is 7 (= n + A).
When n = 9, A = 4, and B = 4, n> A, but not n> A × (B−1), so that the process proceeds to step S10, and the display whose ID number is 13 (= n + A). An instruction request signal indicating an upward arrow is transmitted to D13.
Alternatively, when n = 15, A = 4, and B = 4, since n> A and n> A × (B−1), the process proceeds to step S11, and the display D11 having an ID number of 11 (= n−A) In response to this, an instruction request signal indicating a downward arrow is transmitted.

In step S12, the signal analysis unit 111 checks whether a new adjustment request signal from the remote controller 21 has been received. If an adjustment request signal has been received, whether another ID number has been selected or not. ,To check.
If another ID number is selected, the process proceeds to step S14. If not, that is, if its own ID number is selected, the process proceeds to step S13.
In step S13, the screen adjustment unit executes screen adjustment processing for its own display.
In this process, for example, a process for adjusting brightness, color, display position, display size, and the like is performed.
Thereafter, the process returns to step S12, and as long as the self ID number is selected, the screen adjustment of the self display in step S13 is continued.

In step S12, when a new adjustment request signal is received by remote control operation and it is for selecting another ID number, the process proceeds to step S14, and the display displayed on the display unit 102 of its own display. Erase all. Here, the display displayed on the display to be adjusted is deleted.
In step S15, the instruction generation unit 112 creates instruction information indicating deletion of the arrow display, and transmits a request signal (arrow deletion request) indicating this instruction to all other displays.
The display that has received the erasure request signal erases the arrow display when an arrow is displayed on the display.
Then, it progresses to step S16 of FIG.

In step S16 of FIG. 10, it is checked whether or not an instruction request signal for requesting the display of its own display to be directed by information communication with another adjacent display is received via the communication unit 105. To do. Here, it is checked whether or not the received request signal is a request signal to itself. That is, it is checked whether or not to select its own ID number.
If it is a request signal to itself, the process proceeds to step S23, and if not, the process proceeds to step S17.
In step S17, it is checked whether or not the received request signal is a request signal for all displays.
If the request signal is for all displays, the process proceeds to step S18, and if not, the process proceeds to step S22.

In step S18, it is checked whether or not the received request signal is an arrow erasure request.
If it is an arrow deletion request, the process proceeds to step S19, and if not, the process proceeds to step S21.
In step S19, it is checked whether an arrow is currently displayed on its own display. If the arrow is displayed, the process proceeds to step S20. If not, the process proceeds to step S22.

In step S20, the currently displayed arrow display is deleted, and the process proceeds to step S22.
In step S21, since the received request signal is not an arrow deletion request, processing corresponding to the request content of the request signal is executed.
Thereafter, the process proceeds to step S22.

In step S22, the received request signal is transmitted to the display having the next ID number.
Here, when the ID number of the self is n, the request signal is transmitted to the display of n + 1 which is the next ID number.
Then, it returns to step S2 of FIG.

In step S23, the signal analysis unit 111 checks whether or not the received request signal to itself is an arrow display request among the instruction request signals.
If it is an arrow display request on its own display, the process proceeds to step S24, and if not, the process proceeds to step S26.
In step S24, the signal analysis unit 111 confirms the direction of the arrow instructed by the arrow display request and determines whether the direction is up, down, left, or right.
In step S25, the instruction display unit 114 displays an arrow pointing in the direction of the confirmed arrow on its own display.
For example, in the case of an arrow display request indicating the left direction, a left arrow is displayed.
Thereafter, the process returns to step S2 in FIG.

In step S26, since the received request signal is not an arrow display request, processing corresponding to the request content indicated in the received request signal is executed.
Then, it returns to step S2 of FIG.
The above is the contents of one embodiment of the selection process and the instruction display process of the present invention.

Further, in the present invention, the display selection button can easily change the selection of the display, so it is not always necessary to adjust the screen in the order of the ID numbers. You can easily return to the display.
In addition, if screen adjustment is performed in any order, it may not be clear which display has been adjusted, so a display that can distinguish between a display that has been adjusted and a display that has not been adjusted. It is preferable to
For example, the text “adjusted” may be displayed on the screen of the display that has been adjusted, or the background color of the screen may be different from that of the display that has not been adjusted.
According to this, even when there are a large number of displays constituting the multi-display, it is possible to adjust the screens of all the displays without omission.

DESCRIPTION OF SYMBOLS 11 Multi display 12 Display 13 Light-receiving part 21 Remote control 22 Light emission part 23 Input part 25 Adjustment item selection part 26 Display selection part 101 Control part 102 Display part 103 Display control part 104 Storage part 105 Communication part 111 Signal analysis part 112 Instruction generation part 113 Screen adjustment unit 114 Instruction display unit

Claims (9)

In order to adjust the screen of a multi-display composed of a plurality of displays, a display screen adjustment device provided for each display,
A signal analysis unit for analyzing a screen adjustment request signal input from an external device;
A screen adjustment unit that adjusts the screen of its own display based on the analysis result of the signal analysis unit;
A communication unit that performs information communication with another adjacent display;
When the signal analysis unit determines that the input screen adjustment request signal is to select the own display as an adjustment target, the adjustment target is displayed on the screen of another display adjacent to the own display. An instruction generation unit for generating an instruction request signal for displaying an instruction and transmitting the instruction request signal to a predetermined adjacent display;
A display screen adjustment comprising: an instruction display unit for displaying an instruction to be adjusted on its own display when the communication unit receives the instruction request signal for requesting its own display to display an instruction. apparatus.   The display screen adjustment apparatus according to claim 1, wherein the adjustment target instruction display is a graphic display indicating a direction in which the display to be adjusted exists.   3. The display screen adjustment apparatus according to claim 1, wherein the multi-display is composed of a display group in which a plurality of displays are arranged in a horizontal direction and a vertical direction and arranged in a matrix. The display screen adjustment device according to claim 3, wherein the display on which the adjustment target instruction is displayed is at least two displays adjacent to the adjustment target display.   When the multi-display is composed of a plurality of displays arranged in a matrix in the horizontal direction and the vertical direction, any one of the displays in the left direction or the right direction of the display selected as the adjustment target; The display according to any one of claims 1 to 3, wherein the adjustment target instruction is displayed on any one of the upper and lower displays selected as the adjustment target. Screen adjustment device.   The display screen adjustment apparatus according to claim 1, wherein a predetermined screen adjustment item is displayed on the display selected as the adjustment target.   The display screen adjustment apparatus according to claim 1, wherein the external device is a device capable of transmitting the screen adjustment request signal wirelessly. The external device includes a display selection unit including a movement button for selecting a display to be adjusted by moving in any of the up, down, left, and right directions among the plurality of displays arranged in the matrix.
Wherein by depressing one of the navigation buttons of the display selecting section, a display screen controller according to claim 3 or 5 the display to be adjusted and changes to a desired display.   When the adjustment target display is changed from the first display to the second display by pressing one of the movement buttons of the display selection buttons, the display is made when the first display is the adjustment target display. The adjustment target instruction display that has been performed is erased, a predetermined screen adjustment item is displayed on the second display that is the adjustment target, and the adjustment target instruction display is displayed on one of the displays adjacent to the second display. The display screen adjusting apparatus according to claim 8.

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