JP2016133532A - Display system, display device, and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome a drawback that a malfunction occurs when plural settings of display devices are concurrently modified.SOLUTION: A display system of the present invention includes at least first and second display devices. The first display device includes a first receiving unit that receives a control command, a first control unit that selects an adjustment item, and a first output unit that outputs the control command and first item information representing the selected adjustment item. The second display device includes a second input unit that inputs the control command and first item information, and a second control unit that selects an adjustment item. When a second adjustment item represented by the first item information can be selected, if the control command is a Move command, the second control unit selects the second adjustment item. If the control command is not the Move command, the second control unit executes the control command. When the second adjustment item cannot be selected, the second control unit does not execute the control command.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display system, a display device, and a control method.

  In recent years, display systems in which a plurality of display devices are arranged close to each other are increasing. In the display system, it is possible to display one image as a whole.

  When such a display system is used, there are cases where it is desired to collectively change the settings of a plurality of display devices constituting the display system. For example, Patent Document 1 describes an image display system capable of operating a plurality of image display devices at once.

JP2011-133602A

  The display device has a plurality of adjustment items. Also, depending on the connection state of the cable to the display device, etc., there are cases in which any of the plurality of adjustment items becomes invalid and cannot be selected in the adjustment of the display device. In the display system, when adjustment items that cannot be selected are different between display devices, there is a problem that a problem may occur in changing settings of a plurality of display devices at once. As an example of the problem, a different adjustment item is selected for each display device, and the intended adjustment cannot be performed.

  The objective of this invention is providing the display system, display apparatus, and control method which solve the subject mentioned above.

  In order to achieve the above object, a display system according to the present invention is a display system including at least a first display device and a second display device, wherein the first display device receives a control command. A first control unit that selects any one of a plurality of adjustment items included in the first display device, the control command, and a first adjustment item that is selected by the first control unit. A first output unit for outputting the item information, and the second display device receives the control command and the first item information from the first output unit. A second input unit; and a second control unit that selects one of a plurality of adjustment items included in the second display device. The second control unit is configured by the second display device. Among the plurality of adjustment items, the adjustment indicated by the first item information When the second adjustment item corresponding to the eye can be selected, the second adjustment item is selected when the control command is a movement command, and when the control command is not the movement command, the second adjustment item is selected. When the control command is executed and the second adjustment item cannot be selected, the control command is not executed.

  To achieve the above object, the display device according to the present invention selects an input unit to which a control command and item information indicating any of a plurality of adjustment items are input, and any of the plurality of adjustment items. And when the control command is a movement command, the control unit selects the specified adjustment item, and the control unit selects the specified adjustment item when the control command is a movement command. When the command is not the movement command, the control command is executed, and when the designated adjustment item cannot be selected, the control command is not executed.

  In order to achieve the above object, a control method according to the present invention includes a step of inputting a control command and item information indicating any of a plurality of adjustment items, and a designated adjustment item that is an adjustment item indicated by the item information. When the control command is the movement command, the designated adjustment item is selected. When the control command is not the movement command, the control command is executed, and the designated adjustment item cannot be selected. And a step of not executing the control command.

  ADVANTAGE OF THE INVENTION According to this invention, when the adjustment item which cannot be selected differs between display apparatuses in a display system, the malfunction which may arise when changing the setting of several display apparatuses collectively can be eliminated.

1 is a block diagram of a display system according to a first embodiment of the present invention. It is a flowchart of the control method in the display apparatus which concerns on 1st Embodiment of this invention. It is a flowchart of the control method in the display apparatus which concerns on 1st Embodiment of this invention. 1 is an external view of a display system according to a first embodiment of the present invention. (A) is an external view of the whole display system. (B) is an external view of a remote control device. It is a figure which shows the 1st operation example of the display system which concerns on 1st Embodiment of this invention. It is a figure which shows the 2nd operation example of the display system which concerns on 1st Embodiment of this invention. It is a block diagram of a display device concerning a 2nd embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
First, FIG. 1 shows a block diagram of a display system 1 according to the first embodiment of the present invention.

  The display system 1 includes a display device 100, a display device 200, a display device 300, a remote control device 400, and an image output device 500.

  The display device 100 (first display device), the display device 200 (second display device), and the display device 300 (third display device) all have the same configuration. For this reason, the structure of the display apparatus 100 is demonstrated below and description of the structure of the display apparatuses 200 and 300 is abbreviate | omitted.

  The display device 100 (first display device) includes a reception unit 110 (first reception unit), an input unit 120 (first input unit), an output unit 130 (first output unit), and a control unit 140 (first output unit). 1 control unit), image input unit 150 (first image input unit), image processing unit 160 (first image processing unit), display unit 170 (first display unit), image output unit 180 (first Image output unit).

  The receiving unit 110 (first receiving unit) receives a control command from the remote control device 400. The remote control device 400 transmits a signal related to the control command by wireless or wired such as infrared rays. For example, when the remote control device 400 transmits a control command using infrared rays, the receiving unit 110 is an infrared light receiving unit. When the infrared light receiving unit is not built in the display device 100, the receiving unit 110 may receive a control command from an infrared light receiving unit provided outside the display device 100 by wire or the like. The control command is a command used for changing the setting of the display device. In addition, as the types of control commands, for example, there are a movement command and an adjustment command.

  A signal used for communication control is input to the input unit 120 (first input unit). The output unit 130 outputs a signal used for communication control. As the input unit 120 and the output unit 130, for example, a LAN (Local Area Network) or RS-232C (Recommended Standard 232C) is used.

  The control unit 140 (first control unit) changes the setting of the display device 100 according to the control command received by the receiving unit 110 or the control command input to the input unit 120. The display device 100 has a plurality of adjustment items. The control unit 140 changes the settings of the plurality of adjustment items according to the control command. Item information is used as information indicating adjustment items. When a plurality of adjustment items have unique identification information, the identification information is used as item information.

  The image signal output from the image output device 500 is input to the image input unit 150 (first image input unit). The image signal output from the image output apparatus 500 is transmitted by, for example, a display cable and input to the image input unit 150.

  The image processing unit 160 (first image processing unit) performs image processing on an image based on the image signal input to the image input unit 150. More specifically, the image processing unit 160 performs image processing on an image based on the image signal based on the setting of the adjustment item changed by the control unit 140 (setting of the display device 100). The image processing is signal processing for performing image quality adjustment such as luminance and color, resolution conversion, and the like. In addition, when receiving an instruction to display an OSD (On Screen Display) from the control unit 140, the image processing unit 160 generates an image for displaying the OSD image on the display unit 170. That is, the image processing unit 160 generates an image obtained by combining the image based on the image signal and the OSD image.

  The display unit 170 (first display unit) displays the image received from the image processing unit 160. The display unit 170 is, for example, a liquid crystal panel, an organic EL (Electro Luminescence) panel, a plasma display panel, or the like.

  The image output unit 180 (first image output unit) outputs the same image signal as the image signal input to the image input unit 150. For example, the image output unit 180 duplicates the image signal input to the image input unit 150 and outputs the duplicated image signal.

  In the display system 1, the LAN cables or RS-232C cables are connected to the display devices 100, 200, and 300 in a daisy chain. As a result, the signal output from the output unit 130 (first output unit) is input to the input unit 220 (second input unit). Furthermore, the signal output from the output unit 230 (second output unit) is input to the input unit 320 (third input unit).

  In the display system 1, the display devices 100, 200, and 300 are also connected with display cables in a daisy chain. As a result, the image signal output from the image output unit 180 (first image output unit) is input to the image input unit 220 (second image input unit). Further, the image signal output from the image output unit 230 (second image output unit) is input to the image input unit 320 (third image input unit).

  Note that the input unit 120 and the receiving units 210 and 310 are not used in the following description. For this reason, the following description may be understood as the functions of the input unit 120 and the receiving units 210 and 310 being disabled. Alternatively, the input unit 120 and the receiving units 210 and 310 may not be provided.

  Next, FIG. 2 shows a flowchart of a control method in the display device 100 (first display device).

  At the start of the flowchart of FIG. 2, it is assumed that the display device 100 is in a state where settings can be changed by the remote control device 400. The state in which the setting can be changed is a state in which an OSD image is displayed on the display unit 170, for example.

  The display device 100 receives the control command (step S21). Specifically, the receiving unit 110 receives a control command from the remote control device 400.

  Then, the display device 100 executes the control command (Step S22). Specifically, the control unit 140 executes a control command.

  Next, the display device 100 outputs a control command and item information (step S23). Specifically, the output unit 130 outputs the control command received by the receiving unit 110 and item information (first item information) indicating the selected adjustment item.

  Next, FIG. 3 shows a flowchart of a control method in the display device 200 (second display device) and the display device 300 (third display device). The control method in the display device 200 and the control method in the display device 300 are the same. For this reason, below, the control method in the display apparatus 200 is demonstrated, and description about the control method in the display apparatus 300 is abbreviate | omitted.

  At the start of the flowchart of FIG. 3, it is assumed that the display device 200 is in a state where settings can be changed. The state in which the setting can be changed is a state in which an OSD image is displayed on the display unit 270, for example.

  A control command and item information are input to the display device 200 (step S31). Specifically, the control command and item information (first item information) output by the output unit 130 (first output unit) are input to the input unit 220 (second input unit).

  Subsequently, the display device 200 determines whether or not the adjustment item indicated by the item information can be selected (step S32). Specifically, whether or not the control unit 240 can select an adjustment item (second adjustment item) corresponding to the adjustment item indicated by the item information (first item information) from among the adjustment items included in the display device 200. Determine whether.

  If it is determined in S32 that the selection can be made (step S32—YES), the display device 200 determines whether the control command is a movement command (step S33). Specifically, the control unit 240 determines whether or not the control command is a movement command.

  On the other hand, if it is determined in S32 that selection is not possible, S36 described later is performed.

  If it is determined in S33 that the command is a movement command (step S33-YES), the display device 200 selects the adjustment item indicated by the item information (step S34). Specifically, the control unit 240 selects an adjustment item (second adjustment item) corresponding to the adjustment item indicated by the item information (first item information).

  If it is determined in S33 that the command is not a movement command (step S33-NO), the display device 200 executes the control command (step S35). Specifically, the control unit 240 executes a control command.

  After executing S34 or S35, the display device 200 outputs a control command and item information (step S36). As described above, S36 is also performed when it is determined in S32 that selection is not possible. Specifically, the output unit 230 (second output unit) has the same control command and item information (first item information) as the control command and item information (first item information) input to the input unit 220. Is output.

  An external view of the display system 1 and the remote control device 400 is shown in FIG.

  FIG. 4A is an external view of the display system 1. OSD 1000, 2000, and 3000 are displayed on the display devices 100, 200, and 300 constituting the display system 1, respectively. The receiving unit 110 (first receiving unit) of the display device 100 receives a control command from the remote control device 400. In addition, the control command and item information output from the display device 100 are input to the display device 200. Further, the control command and item information output from the display device 200 are input to the display device 300.

  FIG. 4B is an external view of the remote control device 400. The remote control device 400 is provided with a power button 401, an up button 402, a minus button 403, a plus button 404, a down button 405, a set button 406, a menu button 407, and an EXIT button 408.

  When these buttons are pressed, the remote control device 400 transmits a control command corresponding to the buttons. The power button 401 is associated with a control command for turning on the power of the display device. The menu button 407 is associated with a control command for turning on / off the OSD screen. The EXIT command 408 is associated with a control command for returning to the previous OSD screen. The up button 402 and the down button 405 are associated with control commands for selecting an adjustment item on the OSD screen. The minus button 403 and the plus button 404 are associated with control commands corresponding to adjustment of the adjustment item selected on the OSD screen. The set button 406 is associated with a control command for determining the content adjusted on the OSD screen.

  Among these control commands, the control commands associated with the up button 402 and the down button 405 are movement commands. Further, it is assumed that the control commands associated with the minus button 403 and the plus button 405 are adjustment commands and not movement commands.

  A first operation example of the display system 1 is shown in FIG.

  FIG. 5 shows only OSD 1000, 2000, and 3000. These are assumed to be displayed on the display devices 100, 200, and 300, respectively, as shown in FIG.

  The OSD 1000 displays adjustment items 1100, 1200, 1300, and 1400. In FIG. 5A, the adjustment item 1100 is selected. In order to indicate that the item has been selected, the line of the adjustment item 1100 is shown bold for convenience. In order to indicate that the item is selected, for example, the color of the entire selected adjustment item may be changed. In the display device 100, it is assumed that any of the adjustment items 1100, 1200, 1300, and 1400 can be selected.

  On the OSD 2000, adjustment items 2100, 2200, 2300, and 2400 are displayed. In FIG. 5A, the adjustment item 2100 is selected. In the display device 200, the adjustment items 2100, 2200, and 2400 can be selected, but the adjustment item 2300 cannot be selected.

  In the OSD 3000, adjustment items 3100, 3200, 3300, and 3400 are displayed. In FIG. 5A, the adjustment item 3100 is selected. In the display device 300, the adjustment items 3100, 3200, and 3400 can be selected, but the adjustment item 3300 cannot be selected.

  As described above, each of the display devices 100, 200, and 300 has a plurality of adjustment items. The adjustment item 1100 in the display device 100 corresponds to the adjustment item 2100 in the display device 200 and the adjustment item 3100 in the display device 300. Similarly, the adjustment item 1200 corresponds to the adjustment items 2200 and 3200. The adjustment item 1300 corresponds to the adjustment items 2300 and 3300. Furthermore, the adjustment item 1400 corresponds to the adjustment items 2400 and 3400.

  Further, the adjustment items that cannot be selected are different between the display device 100 and the display device 200. Further, the adjustment items that cannot be selected also differ between the display device 100 and the display device 300. That is, the adjustment items that cannot be selected are different among the plurality of display devices constituting the display system 1.

Based on the above, operation examples 1-1, 1-2, 1-3, 1-4, and 1-5 will be described below in order.
(Operation example 1-1)
Assume that the down button 405 of the remote control device 400 is pressed in the state of FIG. Then, a control command corresponding to the down button 405 is transmitted. This control command is a movement command indicating that an adjustment item displayed under the selected adjustment item is selected.

  The display device 100 receives this control command (step S21). Then, the display device 100 executes the control command (Step S22). As a result, as shown in FIG. 5B, the adjustment item 1200 displayed under the adjustment item 1100 is selected. Further, the display device 100 outputs a control command and item information (step S23). Here, the item information is information indicating the adjustment item 1200.

  The control command and item information output from the display device 100 are input to the display device 200 (step S31). Then, the display device 200 determines whether or not the adjustment item indicated by the item information can be selected (step S32). That is, it is determined whether or not the adjustment item 2200 corresponding to the adjustment item 1200 can be selected. Since this adjustment item 2200 can be selected (step S32—YES), the display device 200 next determines whether or not the control command is a movement command (step S33). As described above, since the control command received by the display device 200 is a movement command (step S33—YES), the display device 200 selects the adjustment item indicated by the item information (step S34). That is, the adjustment item 2200 is selected as shown in FIG. Then, the display device 200 outputs a control command and item information (step S36). Here, the item information is information indicating the adjustment item 1200.

The control command and item information output from the display device 200 are input to the display device 300 (step S31). Then, the display device 300 determines whether or not the adjustment item indicated by the item information can be selected (step S32). That is, it is determined whether or not the adjustment item 3200 corresponding to the adjustment item 1200 can be selected. Since this adjustment item 3200 can be selected (step S32—YES), the display device 300 next determines whether or not the control command is a movement command (step S33). As described above, since the control command received by the display device 300 is a movement command (step S33—YES), the display device 300 selects the adjustment item indicated by the item information (step S34). That is, the adjustment item 3200 is selected as shown in FIG. As described above, the operation of the display device 300 is the same as the operation of the display device 200. Therefore, in the following, the description of the operation of the display device 300 will be briefly described.
(Operation example 1-2)
Assume that the minus button 403 or the plus button 404 is pressed in the state of FIG. Then, a control command corresponding to the minus button 403 or the plus button 404 is transmitted. This control command is an adjustment command indicating that the selected adjustment item is adjusted, and is not a movement command.

  The display device 100 receives this control command (step S21). Then, the display device 100 executes the control command (Step S22). Although not shown, the display device 100 adjusts the adjustment item 1200. Further, the display device 100 outputs a control command and item information (step S23). Here, the item information is information indicating the adjustment item 1200.

  The control command and item information output from the display device 100 are input to the display device 200 (step S31). Then, the display device 200 determines whether or not the adjustment item indicated by the item information can be selected (step S32). That is, it is determined whether or not the adjustment item 2200 corresponding to the adjustment item 1200 can be selected. Since this adjustment item 2200 can be selected (S32—YES), the display device 200 next determines whether or not the control command is a movement command (step S33). As described above, since the control command received by the display device 200 is not a movement command (S33-NO), the display device 200 executes the control command (step S35). That is, the display device 200 adjusts the adjustment item 2200. Further, the display device 200 outputs a control command and item information (step S36). Here, the item information is information indicating the adjustment item 1200.

Control commands and adjustment items output from the display device 200 are input to the display device 300 (step S31). Hereinafter, since the operation is similar to the operation in the display device 200, the description thereof is omitted. As a result, the display device 300 adjusts the adjustment item 3200.
(Operation example 1-3)
Assume that the down button 405 is further pressed in the state of FIG. Then, a control command corresponding to the down button 405 is transmitted. As described in the operation example 1-1, this control command is a movement command.

  The display device 100 receives this control command (step S21). Then, the display device 100 executes the control command (Step S22). As a result, the adjustment item 1300 is selected as shown in FIG. Further, the display device 100 outputs a control command and item information (step S23). Here, the item information is information indicating the adjustment item 1300.

  The control command and item information output from the display device 100 are input to the display device 200 (step S31). Then, the display device 200 determines whether or not the adjustment item indicated by the item information can be selected (step S32). That is, it is determined whether or not the adjustment item 2300 corresponding to the adjustment item 1300 can be selected. This adjustment item 2300 cannot be selected (step S32—NO). Therefore, the control command is not executed on the display device 200, and the adjustment item 2200 remains selected as shown in FIG. Then, the display device 200 outputs a control command and item information (step S36). Here, the item information is information indicating the adjustment item 1300.

The control command and item information output from the display device 200 are input to the display device 300 (step S31). Hereinafter, since the operation is similar to the operation in the display device 200, the description thereof is omitted. As a result, in the display device 300, as shown in FIG. 5C, the adjustment item 3200 remains selected.
(Operation example 1-4)
Assume that the minus button 403 or the plus button 404 is pressed in the state of FIG. Then, a control command corresponding to the minus button 403 or the plus button 404 is transmitted. As described in Operation Example 1-2, this control command is not a movement command.

  The display device 100 receives this control command (step S21). Then, the display device 100 executes the control command (Step S22). Although not shown, the display device 100 adjusts the adjustment item 1300. Further, the display device 100 outputs a control command and item information (step S23). Here, the item information is information indicating the adjustment item 1300.

  The control command and item information output from the display device 100 are input to the display device 200 (step S31). Then, the display device 200 determines whether or not the adjustment item indicated by the item information can be selected (step S32). That is, it is determined whether or not the adjustment item 2300 corresponding to the adjustment item 1300 can be selected. This adjustment item 2300 cannot be selected (step S32—NO). For this reason, the control command is not executed in the display device 200. That is, in the display device 200, as shown in FIG. 5C, the adjustment item 2200 remains selected, and the adjustment item is not adjusted. Then, the display device 200 outputs a control command and item information (step S36). Here, the item information is information indicating the adjustment item 1300.

The control command and item information output from the display device 200 are input to the display device 300 (step S31). Hereinafter, since the operation is similar to the operation in the display device 200, the description thereof is omitted. As a result, in the display device 300, as illustrated in FIG. 5C, the adjustment item 3200 remains selected, and the adjustment item is not adjusted.
(Operation Example 1-5)
Assume that the down button 405 is further pressed in the state of FIG. Then, a control command corresponding to the down button 405 is transmitted. As described in the operation example 1-1, this control command is a movement command.

  The display device 100 receives this control command (step S21). Hereinafter, the operation is similar to that of the operation example 1-1, and thus the description is omitted.

  As a result, adjustment items 1400, 2400, and 3400 are selected as shown in FIG.

  A second operation example of the display system 1 is shown in FIG.

  FIG. 6 shows only OSD 1000, 2000, and 3000 as in FIG. These are assumed to be displayed on the display devices 100, 200, and 300, respectively, as shown in FIG.

The difference from the first operation example is that the adjustment item 1200 cannot be selected in the second operation example. Based on this, the operation examples 2-1 and 2-2 will be described in order below.
(Operation example 2-1)
Assume that the down button 405 is pressed in the state of FIG. Then, a control command corresponding to the down button 405 is transmitted. As described in the operation example 1-1, this control command is a movement command.

  The display device 100 receives this control command (step S21). Then, the display device 100 executes the control command (Step S22). Here, the adjustment item 1200 displayed below the adjustment item 1100 cannot be selected, and the adjustment item 1300 displayed further below can be selected. For this reason, as shown in FIG. 6B, the adjustment item 1300 is selected. Further, the display device 100 outputs a control command and item information (step S23). Here, the item information is information indicating the adjustment item 1300.

  The control command and item information output from the display device 100 are input to the display device 200 (step S31). Hereinafter, the operation is similar to that of the operation example 1-3, and thus the description thereof is omitted.

As a result, as shown in FIG. 6B, the adjustment items 2100 and 3100 remain selected.
(Operation example 2-2)
Assume that the down button 405 is further pressed in the state of FIG. Then, a control command corresponding to the down button 405 is transmitted. As described in the operation example 1-1, this control command is a movement command.

  The display device 100 receives this control command (step S21). Hereinafter, the operation is similar to that of the operation example 1-1, and thus the description thereof is omitted. As a result, as shown in FIG. 6C, adjustment items 1400, 2400, and 3400 are selected.

  In the first operation example and the second operation example described above, the adjustment items that cannot be selected are different among the plurality of display devices constituting the display system 1. However, the above-described operation according to the present invention can eliminate problems that may occur when the settings of the display devices 100, 200, and 300 are collectively changed.

  More specifically, the display devices 200 and 300 according to the present invention do not execute the control command when the adjustment item indicated by the item information cannot be selected (step S32—NO). For this reason, in the display devices 200 and 300, the adjustment not intended by the user is not performed.

  Further, when it is determined that the control command is a movement command (S33—YES), the display devices 200 and 300 according to the present invention select the adjustment item indicated by the item information (step S34). That is, the adjustment item corresponding to the adjustment item selected on the display device 100 is selected on the display devices 200 and 300. For this reason, adjustment items not intended by the user are not selected.

  The display device 200 outputs the control command and item information regardless of whether the control command is executed (step S36). And the display apparatus 300 operate | moves based on this control command and item information (step S31-S35). For this reason, even if adjustment items that cannot be selected between the display devices 200 and 300 are different, adjustments that are not intended by the user are not performed on the display device 300.

Second Embodiment
Next, FIG. 7 shows a block diagram of a display device 600 according to the second embodiment of the present invention.

  The display device 600 includes an input unit 610 and a control unit 620.

  The input unit 610 is the same as the input unit 220. That is, a control command and item information are input to the input unit 610.

  The control unit 620 is the same as the control unit 240. That is, the control unit 620 changes the settings of the plurality of adjustment items that the display device 600 has in accordance with the control command and item information input to the input unit 610.

  The flowchart of the control method in the display device 600 is the same as the flowchart shown in FIG. For this reason, the description about the control method in the display device 600 is omitted.

  While the embodiments of the present invention have been presented and described in detail above, various changes and modifications can be made without departing from the spirit or scope of the appended claims.

DESCRIPTION OF SYMBOLS 1 Display system 100 Display apparatus (1st display apparatus)
110 Receiving unit (first receiving unit)
120 input unit (first input unit)
130 Output unit (first output unit)
140 Control unit (first control unit)
150 Image input unit (first image input unit)
160 Image processing unit (first image processing unit)
170 Display unit (first display unit)
180 Image output unit (first image output unit)
200 display device (second display device)
210 Receiving unit (second receiving unit)
220 Input unit (second input unit)
230 Output unit (second output unit)
240 control unit (second control unit)
250 Image input unit (second image input unit)
260 Image processing unit (second image processing unit)
270 display unit (second display unit)
280 Image output unit (second image output unit)
300 Display device (third display device)
310 Receiver (third receiver)
320 input unit (third input unit)
330 Output unit (third output unit)
340 control unit (third control unit)
350 Image input unit (third image input unit)
360 Image processing unit (third image processing unit)
370 display unit (third display unit)
380 Image output unit (third image output unit)
400 Remote control device 401 Power button 402 Up button 403 Minus button 404 Plus button 405 Down button 406 Set button 407 Menu button 408 EXIT button 500 Image output device 600 Display device 610 Input unit 620 Control unit 1000 OSD screen 2000 display of display device 100 OSD screen of device 200 3000 OSD screen of display device 300

Claims (10)

A display system comprising at least a first display device and a second display device,
The first display device includes:
A first receiver for receiving a control command;
A first control unit that selects any of a plurality of adjustment items of the first display device;
A first output unit that outputs the control command and first item information indicating an adjustment item selected by the first control unit;
With
The second display device includes:
A second input unit in which the control command and the first item information are input from the first output unit;
A second control unit for selecting any of a plurality of adjustment items of the second display device;
With
The second controller is
When the second adjustment item, which is an adjustment item corresponding to the adjustment item indicated by the first item information, can be selected from among a plurality of adjustment items of the second display device, the control command is a movement command. Select the second adjustment item when there is, execute the control command when the control command is not the movement command,
The display system that does not execute the control command when the second adjustment item cannot be selected. A third display device;
The second display device further includes a second output unit that outputs the control command and the first item information.
The third display device includes a third input unit to which the control command and the first item information are input from the second output unit,
The display system according to claim 1. The third display device includes:
A third control unit for selecting any of a plurality of adjustment items of the third display device;
The third control unit is
When the third adjustment item, which is an adjustment item corresponding to the adjustment item indicated by the first item information, can be selected from among a plurality of adjustment items included in the third display device, the control command is a movement command. Select the third adjustment item when there is, execute the control command when the control command is not the movement command,
If the third adjustment item cannot be selected, the control command is not executed.
The display system according to claim 2. The first display device further includes a display unit for displaying an image,
The first output unit does not output the control command and the first item information when the display unit does not display the adjustment item of the first display device. A display system according to any of the above. Each of the plurality of adjustment items included in the first display device has unique identification information,
The first item information is the identification information included in the adjustment item selected by the first control unit.
The display system according to claim 1. The first receiving unit receives the control code via infrared;
The display system according to claim 1. The first display device further includes a first image input unit to which an image signal is input, and a first image output unit to output the image signal,
The second display device further includes a second image input unit to which the image signal is input from the first image output unit, and a second image output unit to output the image signal,
The third display device further includes a third image input unit to which the image signal is input from the second image output unit,
The display system according to claim 2 or 3. The first display device includes:
A first image processing unit that performs image processing of the image signal based on settings of a plurality of adjustment items included in the first display device;
The display unit displays the image subjected to the image processing;
The display system according to claim 7. An input unit for inputting a control command and item information indicating any of a plurality of adjustment items;
A control unit for selecting any of the plurality of adjustment items;
With
The controller is
When a designated adjustment item that is an adjustment item indicated by the item information can be selected, the designated adjustment item is selected when the control command is a movement command, and the control command is selected when the control command is not the movement command. Run,
A display device that does not execute the control command when the designated adjustment item cannot be selected. A step in which a control command and item information indicating any of a plurality of adjustment items are input;
When a designated adjustment item that is an adjustment item indicated by the item information can be selected, the designated adjustment item is selected when the control command is the movement command, and the control command is selected when the control command is not the movement command. Run
If the designated adjustment item cannot be selected, the step of not executing the control command;
A method for controlling a display device.

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