JP2013130646A - Display device, computer program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device that includes plural display units and controls the operation of each of the display units with a remote control device, a computer program and a recording medium.SOLUTION: A multi-display device includes plural displays, and each of the displays calculates signal strength of remote control signals received with a light receiving part of the display itself, acquires signal strength of remote control signals received with the other displays, and determines whether the signal strength of the remote control signals received with the light receiving part of the display itself is higher or lower than any of signal strength of the other displays. The multi-display device displays a setting screen for display adjustment on a display where the highest signal strength can be obtained.

Description

  The present invention relates to a display device, a computer program, and a recording medium that include a plurality of display units and control the operation of each display unit by a remote control device.

  2. Description of the Related Art Conventionally, a multi-display device is known in which a large screen display is configured by combining a plurality of displays. In this multi-display device, each display displays a part of one image, so that one large image can be displayed on a large-screen display composed of a plurality of displays. The multi-display device is installed in, for example, a store or a public space, and is used for an information display that provides various types of information to unspecified viewers. As described above, when a large-screen display is configured by combining a plurality of displays, it is necessary to recognize each display individually and adjust the brightness and color of each display so that unevenness does not occur as a whole.

  In a multi-display apparatus, for example, a technique disclosed in Patent Document 1 exists as a means for recognizing an arrangement position of each display. In Patent Document 1, a display control unit including an OSD processing unit (OSD: On Screen Display) and a display processing unit displays a configuration diagram of a multi-display device on a display unit based on the number information and position information. . In addition, since the arrangement position of the image display device is shown in the configuration diagram displayed by the multi-display device, it is easy to visually recognize at which position the image display device is arranged in the multi-display device.

JP 2005-134705 A

  However, since the OSD mainly focuses on configuring a multi-display device with the number of squares of a natural number, for example, the horizontal display number is 1 × horizontal display number 10 or the vertical display number 10 × horizontal. When a vertically long configuration diagram such as the number of displays 1 is considered, it cannot fit in an OSD disclosed in Patent Document 1, and thus cannot be visually recognized easily.

  In addition, in the case of being configured with planes such as the number of vertical displays m × the number of horizontal displays n, it is considered that the configuration diagram is easily visible, but when m × n is configured with several planes (for example, from the user In the case of a cube configuration that is arranged not only on the front but also on the floor, ceiling, left and right, etc.), with the OSD display method disclosed in Patent Document 1, it is difficult for the user to visually recognize the OSD itself. Therefore, it is difficult to specify the position of the display to be adjusted from the configuration diagram described therein.

  Furthermore, when the number of components of m × n is increased, the height of the upper display is increased, and the user interface (operation button) described in Patent Document 1 is not easy to operate. Further, since the distance between the left end display and the right end display becomes considerably large, there is a problem that it takes a long time for the user to adjust the display one by one.

  The present invention has been made in view of such circumstances, and even if the number of display configurations in a multi-display device increases, it reduces the user's operational burden when making settings for each display. An object of the present invention is to provide a display device, a computer program, and a recording medium.

  The display device according to the present invention includes a plurality of display units, and each display unit receives a control signal transmitted from the remote control device in a display device in which the operation of each display unit can be controlled by the remote control device. Receiving means, means for calculating the signal strength of the control signal, means for acquiring the signal strength of the control signal calculated by another display unit, and the calculated signal strength and the control signal acquired from the other display unit A determination unit that compares the signal strength with the signal strength and determines whether the calculated signal strength is higher than the signal strength of any control signal acquired from another display unit; and a determination result by the determination unit And a setting screen for accepting a setting related to display adjustment based on the determination result output from each display unit is displayed on the display unit determined to have the highest signal strength of the control signal. It is characterized by

  In the present invention, since the screen for performing various settings of the multi-display device is displayed on a display unit (display) close to the user without the user being particularly conscious, the setting operation is facilitated. Further, since the display close to the user is determined based on the intensity (A / D conversion value) of the control signal transmitted from the remote control device, it is not necessary to detect the user position by a camera, a distance measuring sensor, etc. Simplified.

  The display device according to the present invention specifies a display unit having the next highest signal strength after the display unit determined to have the highest signal strength of the control signal, and the display unit determined to have the highest signal strength of the control signal. The setting screen is displayed on a display unit existing between the receiving unit provided and the receiving unit provided in the specified display unit.

  According to the present invention, the accuracy of detecting the display in front of the user is improved by using the order of the strength (A / D conversion value) of the control signal for determination.

  The display device according to the present invention compares the signal strength of the control signal received by the display unit that displays the setting screen with a predetermined value, and displays the setting screen in an enlarged manner when the signal strength of the control signal is lower than the predetermined value. It is characterized by doing.

  According to the present invention, when the user is operating at a position away from the display, the setting screen is automatically enlarged and displayed, so that the visibility of the display content is improved.

  In the display device according to the present invention, the display unit to be adjusted for display can be set. When the display unit to be adjusted is different from the display unit that displays the setting screen, the display unit to be adjusted includes The display for distinguishing from other display units is performed.

  According to the present invention, while the user is setting each item on the setting screen displayed on the display in front of the user, by displaying that the setting is currently being performed on the setting target display, It is possible to easily recognize which display constituting the multi-display system is being set.

  A display device according to the present invention includes a plurality of display units, and a receiving unit that receives a control signal transmitted from the remote control device in a display device in which the operation of each display unit can be controlled by the remote control device; Means for calculating the signal strength of the control signal, and a table defining a relationship between the signal strength of the control signal and a display unit for displaying a setting screen for accepting settings relating to display adjustment, and the table A display unit on which the setting screen is to be displayed is specified based on the calculated signal strength, and the setting screen is displayed on the specified display unit.

  In the present invention, since the setting screen for performing various settings of the multi-display device is displayed on a display (display unit) close to the user without the user being particularly conscious, the setting operation is facilitated. In addition, since one receiving unit is provided for the entire display device, the device configuration is simplified.

  A display device according to the present invention comprises a plurality of receiving means for receiving a control signal transmitted from a remote control device in a display device comprising a plurality of display units, wherein the operation of each display unit can be controlled by the remote control device. A means for calculating the signal strength of the control signal received by each receiving means, a means for determining the level of the calculated signal strength, and a setting for adjusting the display based on the determination result by the means. Means for specifying a display unit on which a setting screen for acceptance is to be displayed, and the setting screen is displayed on the specified display unit.

  In the present invention, since the setting screen for performing various settings of the multi-display device is displayed on a display (display unit) close to the user without the user being particularly conscious, the setting operation is facilitated. Moreover, since each display part of a display apparatus does not need to be provided with a receiving means, an apparatus structure is simplified.

A computer program according to the present invention is a computer program executed by a computer that controls operations of a plurality of display units, wherein the computer calculates a signal strength of a control signal input to each display unit, and one display The signal intensity calculated in one display unit is compared with the signal intensity calculated in the other display unit and the signal intensity calculated in the other display unit. A step of determining whether or not the intensity is higher than the intensity, and a setting screen for accepting a setting relating to adjustment of the display based on the determination result in the step, on the display unit determined to have the highest signal intensity of the control signal The step of displaying is executed.
A recording medium according to the present invention is characterized in that the computer program described above is recorded.

  In the present invention, each function of the display device is realized by a computer program executed by a computer.

  According to the present invention, since the setting screen for performing various settings of the multi-display device is displayed on the display (display unit) close to the user without the user being particularly conscious, the setting operation is facilitated. In addition, since the display close to the user is determined by the intensity (A / D conversion value) of the infrared signal transmitted from the remote control device (remote controller), there is no need to detect the user position with a camera, a distance measuring sensor, or the like. The device configuration can be simplified.

  Further, according to the present invention, the accuracy of detecting a display arranged in the vicinity of the user can be improved by using the order of the intensity (A / D conversion value) of the infrared signal for the determination.

  When the user is operating near the display, the displayed content can be read sufficiently even if the setting screen is displayed in the normal size, but the user can operate at a position away from the display. If it is, the characters on the setting screen may be difficult to read. In this case, according to the present invention, since the setting screen is automatically displayed in an enlarged manner, the user can improve the visibility of the characters and can easily make the setting.

While the user is setting each item on the setting screen displayed on the display in front of the user, by displaying that the setting is currently being performed on the display to be set, the user configures which multi-display device. You can easily recognize which display is being set.
In addition, when making adjustments such as the brightness and color of the entire multi-display device, it is possible to make adjustments while confirming the entire device from a range (about 7 m) away from the remote control signal reception. Further, it becomes easy to make the color and the like uniform.

It is a schematic diagram which shows the structure of the multi-display apparatus which concerns on this Embodiment. It is a block diagram which shows the whole structure of the multi-display apparatus which concerns on this Embodiment. It is a figure explaining operation | movement of a light-receiving part. It is a flowchart explaining the procedure of the process which a signal strength determination part performs. It is a flowchart explaining the procedure of the process which a decoding part performs. It is explanatory drawing explaining the example of a display of a setting screen. It is a schematic diagram which shows the example in which a some user exists in the vicinity of a multi-display apparatus. It is a schematic diagram explaining a specification prescription. It is a flowchart explaining the procedure of the process which a signal strength determination part performs. FIG. 10 is an explanatory diagram for explaining an operation of a multi-display device according to a third embodiment. FIG. 10 is an explanatory diagram for explaining an operation of a multi-display device according to a fourth embodiment. FIG. 10 is an explanatory diagram for explaining an operation of a multi-display device according to a fifth embodiment. FIG. 10 is an explanatory diagram for explaining an operation of a multi-display device according to a sixth embodiment. FIG. 10 is an explanatory diagram for explaining the operation of a multi-display device according to a seventh embodiment. It is a schematic diagram which shows the example of a display of a setting screen. It is a schematic diagram which shows the example which specified the display of a setting object. It is a schematic diagram which shows the other example of a setting screen.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing a configuration of a multi-display device according to the present embodiment. The multi-display device (display device) according to the present embodiment has a plurality of displays (display units) 10, 10,..., 10 having an appropriate screen size, and these displays 10, 10,. , M × n matrix connected.
The multi-display device is configured such that each display 10 can display one image as the entire device by displaying different portions of one image in accordance with each arrangement position. Further, by sending video signals to the individual displays 10, each display 10 can be configured to display video (images) independently from the other displays 10.

The display 10 is a display device such as a liquid crystal display, a plasma display, an organic EL display, or a CRT display. Each display 10 includes a light receiving unit 11 for receiving an infrared signal transmitted from a remote controller (hereinafter referred to as a remote controller) in order to receive remote control.
Each display 10 A / D converts the infrared signal received by the light receiving unit 11, and compares the A / D converted value with the A / D conversion value of the other display 10. The multi-display apparatus according to the present embodiment determines that there is a user operating the remote control near the display 10 that has the largest A / D conversion value, and sets the display 10 to be set by the OSD. Determine as.

  In the present embodiment, as shown in FIG. 1, a multi-display device in which 3 × 3 displays 10, 10,..., 10 are arranged in a matrix will be described. The number and arrangement of the displays 10 to be mounted are not limited to those shown in FIG. 1, and an appropriate number of displays 10 can be connected in an arbitrary arrangement.

FIG. 2 is a block diagram showing the overall configuration of the multi-display apparatus according to the present embodiment. The multi-display device includes a light receiving unit 11, a signal strength determination unit 12, a decoding unit 13, an OSD processing unit 14, a scaling unit 15, a display processing unit 16, a control unit 17, and a storage unit 18.
In the present embodiment, the light receiving unit 11 and the signal strength determination unit 12 are provided for each display 10, and the decoding unit 13, OSD processing unit 14, scaling unit 15, control unit 17, and storage unit 18 are multi-displays. Only one set is provided for the apparatus.

  The light receiving unit 11 of each display 10 receives an infrared signal (remote control signal) transmitted from the remote control by a user's remote control operation. The light receiving unit 11 amplifies the received infrared signal, converts it to a voltage, and sends the converted voltage signal to the signal strength determination unit 12 and the decoding unit 13.

  FIG. 3 is a diagram for explaining the operation of the light receiving unit 11. As shown in the block diagram of FIG. 3A, the light receiving unit 11 includes a light receiving diode 111, an amplifier 112, a bandpass filter 113, a detector 114, and a waveform shaping circuit 115. The infrared signal transmitted from the remote controller is diffused during transmission and the intensity thereof is reduced. Therefore, in the light receiving unit 11, the amplifier 112 amplifies the output of the light receiving diode 111 that is an infrared light receiving element.

  The signal amplified by the amplifier 112 passes through the band pass filter 113. The band pass filter 113 extracts only a desired carrier frequency component. There are many infrared noise sources in the natural world, so in order to send and receive remote control signals correctly in the presence of noise, it is necessary to transmit infrared rays at an intensity that exceeds the noise level on the receiving side. There is. However, when the intensity of infrared rays is simply increased, a large amount of power is required.

Therefore, as shown in the waveform diagram of FIG. 3 (b), since infrared is turned off by turning on / off infrared at the carrier frequency, the intensity of the infrared is obtained even when the same power is used. Can be raised. That is, when the carrier power is not used, even if the signal strength is almost the same as that of noise, if only the peak power is increased using the carrier, even if the same power is used, the intensity of the infrared light Can be high.
Also, by turning on / off at the carrier frequency, at the time of reception, it is possible to perform communication that is resistant to noise by filtering and extracting other than the frequency component.

  The light receiving unit 11 acquires a remote control signal (voltage signal) by detecting the carrier frequency component extracted by passing through the band pass filter 113 by the detector 114 and performing waveform shaping by the waveform shaping circuit 115. .

  The signal strength determination unit 12 shown in FIG. 2 acquires the signal strength of the signal received by the light receiving unit 11 by A / D converting and digitizing the voltage signal transmitted from the light receiving unit 11. To do. The signal strength determination unit 12 has a communication function such as RS-232C, and acquires the signal strength of the signal received by the other display 10 by communicating with the other display 10.

  The signal strength determination unit 12 compares the signal strength of the signal received by itself with the signal strength of the signal received by another display 10. When the signal strength of the signal received by the signal strength determination unit 12 is higher than any of the signal strengths of the signals received by other displays 10, the signal strength determination unit 12 is a signal that notifies the fact (in this embodiment, 1 The bit signal is set to “1”) to the OSD processing unit 14 and the decoding unit 13. On the other hand, when the signal strength of the signal received by itself is lower than any of the signal strengths of the signals received by other displays 10, the signal strength determination unit 12 is a signal for notifying that (in this embodiment, 1 bit signal is set to “0”) to the OSD processing unit 14 and the decoding unit 13.

  FIG. 4 is a flowchart for explaining a procedure of processing executed by the signal strength determination unit 12. The signal strength determination unit 12 determines whether or not the signal transmitted from the light receiving unit 11 has been received (step S11). When the signal from the light receiving unit 11 is not received (S11: NO), it waits until the signal is received.

  When the signal from the light receiving unit 11 is received (S11: YES), the signal strength determination unit 12 performs A / D conversion on the received signal and calculates an A / D conversion value that is signal strength (step S12). Next, the signal strength determination unit 12 communicates with the other display 10 to acquire the signal strength (A / D conversion value) of the signal received by the other display 10, and the A / D calculated in step S12. Compared with the D conversion value (step S13).

Next, the signal strength determination unit 12 determines whether or not its own A / D conversion value is maximum (step S14), and determines that its own A / D conversion value is maximum (S14: YES). ), A signal “1” is sent to the OSD processing unit 14 and the decoding unit 13 (step S15).
On the other hand, when it is determined that its own A / D conversion value is not the maximum (S14: NO), the signal strength determination unit 12 sends a signal of “0” to the OSD processing unit 14 and the decoding unit 13 ( Step S16).

  FIG. 5 is a flowchart for explaining a procedure of processing executed by the decoding unit 13. The decoding unit 13 determines whether or not the signal from the signal strength determination unit 12 is “1” (step S21). If the signal from the signal strength determination unit 12 is not “1” (S21: NO), the decoding unit 13 does not perform processing, and thus the processing according to this flowchart is terminated.

  When the signal from the signal strength determination unit 12 is “1” (S21: YES), the decoding unit 13 sequentially analyzes the reader code, custom code, and data code for the remote control signal sent from the light receiving unit 11. (Steps S22 to S24) A decoding process is executed. Next, the decoding unit 13 sends the decoded data to the OSD processing unit 14 (step S25).

In the OSD processing unit 14, when the signal from the signal strength determination unit 12 is “1”, it is necessary to perform OSD display on the display 10. Data from 13 is received. Based on the data from the decoding unit 13, a setting screen designated by the user is prepared and transmitted to the display processing unit 16.
On the other hand, when the signal from the signal strength determination unit 12 is “0”, it is not necessary to perform OSD display on the display 10, so that the OSD setting value is sent to another display 10 in response to a request.

  The control unit 17 selects each display 10 in order, causes the signal strength determination unit 12 to perform signal strength determination, and inputs the OSD setting value and the signal from the remote control to the OSD processing unit 14 and the decoding unit 13. Control as follows.

  The scaling unit 15 scales the input image so as to match the resolution of the display 10 to be displayed. The display processing unit 16 expands the data from the OSD processing unit 14 on the image data from the scaling unit 15, outputs the data as one frame of image data, and displays the OSD setting screen on the display 10 determined as the setting target by the OSD. Is displayed.

  As described above, in the present embodiment, the OSD (setting screen) of each display 10 constituting the multi-display device is displayed on the display 10 close to the position of the user, so the number of m × n components increases. In this case, for example, it is not necessary for the user to move to a higher position or to move in the horizontal direction in order to set the upper display 10, and no unnecessary time other than adjustment is generated.

FIG. 6 is an explanatory diagram illustrating a display example of the setting screen. In the multi-display device having the light receiving unit 11 in each display 10, for example, as shown in FIG. 6A, the display 10 that displays the OSD setting screen is 3 × 3 depending on the height of the user who performs the setting operation. May be in the middle. Further, as shown in FIG. 6B, when the work is being performed while stepping on a stepladder during installation adjustment, an OSD setting screen may be displayed at the top of 3 × 3.
That is, in the present embodiment, the A / D conversion values obtained from the light receiving units 11 provided in the respective displays 10 are compared with each other, and the OSD setting screen is displayed on the display 10 having the maximum A / D conversion value. Since the configuration is adopted, it is possible to display the OSD setting screen on the display 10 at an appropriate position for the user.

  There may be a plurality of users near the multi-display device. FIG. 7 is a schematic diagram showing an example in which a plurality of users exist in the vicinity of the multi-display device. In this Embodiment, it is set as the structure which identifies the display 10 nearest to the user who should show a setting screen based on the signal strength of the infrared signal transmitted from a remote control, without detecting presence of a user. For this reason, as shown in FIG. 7, even when there are a user who operates the remote control (user 1) and a user who does not operate the remote control (user 2 and user 3), the remote control is operated. It is possible to display the setting screen on the display 10 closest to the user 1 who is.

  In FIG. 7, even if there are two users, user 1 and user 2, who carry the remote control, and each performs a remote control operation, the remote control signal with the higher intensity of the infrared signal is displayed. By prioritizing the display 10 on which the setting screen is to be displayed, it becomes possible to avoid contention for operations by a plurality of users.

In particular, when the display 10 is a device having a relatively narrow viewing angle such as a liquid crystal display, the display 10 is tilted to a certain degree toward the display 10, that is, the user is not in front of the display 10 but at an oblique position. When the display 10 is set from the beginning, the display contents are inevitably difficult to see. For this reason, it is considered that the setting user stands near the front of the display 10.
Further, for example, in the case of a conventional model, it is known that the remote control signal can be recognized within a range of about ± 10 degrees and a measured range of about ± 40 degrees as shown in the schematic diagram of FIG. However, since the signal intensity decreases as the angle with respect to the light receiving unit 11 is increased, it is possible to specify the display 10 close to the user who is performing the setting operation only by measuring and determining only the signal intensity.
In such a configuration, it is not necessary to detect the user position, and the set user can be identified from a plurality of users in the vicinity of the system.
Note that if the remote control signal distribution is too wide to be a problem, a remote controller with strong directivity (difficult to diffuse) may be used.

  In the present embodiment, a configuration in which only one set of the decoding unit 13, the OSD processing unit 14, and the scaling unit 15 is provided for the multi-display device is described. However, each display 10 includes the decoding unit 13, the OSD. You may provide the process part 14 and a scaling part.

Embodiment 2. FIG.
In the first embodiment, the light receiving unit 11 is provided in each display 10. However, since the light receiving unit 11 is generally provided in a frame portion that covers the periphery of the display screen, the left and right (or top and bottom) are sandwiched between the frames. It may be preferable to determine which display 10 is close to the user. Therefore, in the second embodiment, the A / D conversion value of the display 10 disposed around the display 10 having the maximum A / D conversion value is checked, and the light receiving unit 11 having the largest and second largest A / D conversion value. A configuration for specifying the display 10 existing in between will be described.
Note that the functional configuration and hardware configuration of the multi-display device are exactly the same as those in the first embodiment, and thus description thereof will be omitted.

  FIG. 9 is a flowchart illustrating a procedure of processing executed by the signal strength determination unit 12. In the second embodiment, as shown in FIG. 1, it is assumed that the light receiving unit 11 is provided in the right frame (left side as viewed from the user) of each display 10. In the second embodiment, it is assumed that information related to the arrangement of the display 10 is stored in the storage unit 18.

  The signal strength determination unit 12 determines whether or not its own A / D conversion value is the maximum by the same procedure as in the first embodiment (step S31). If the own A / D conversion value is not the maximum (S31: NO), the process returns to step S31.

When it is determined that its own A / D conversion value is maximum (S31: YES), the signal strength determination unit 12 determines whether or not the display 10 is present on the left side of itself (step S32). The signal strength determination unit 12 can determine whether or not the display 10 exists on the left side of itself by reading out information relating to the arrangement of the display 10 stored in advance from the storage unit 18.
When it is determined that the display 10 exists on the left side of itself (S32: YES), the signal strength determination unit 12 communicates with the left display 10 and acquires the A / D conversion value of the signal received by the left display 10 (Step S33). When it is determined that the display 10 does not exist on the left side of itself (S32: NO), the signal strength determination unit 12 executes processing after step S34 described later.

Next, the signal strength determination unit 12 determines whether or not the display 10 exists on the right side of itself (step S34). The signal strength determination unit 12 can determine whether or not the display 10 exists on the right side of itself by reading out information related to the arrangement of the display 10 stored in advance from the storage unit 18.
When it is determined that the display 10 exists on the right side of itself (S34: YES), the signal strength determination unit 12 communicates with the right display 10 and acquires the A / D conversion value of the signal received by the right display 10 (Step S35). When it is determined that the display 10 does not exist on the right side of itself (S34: NO), the signal strength determination unit 12 executes processing after step S36 described later.

Next, the signal strength determination unit 12 compares the A / D conversion values acquired from the left and right displays 10 of the own (Step S36), and the A / D of the display 10 on the right (left side as viewed from the user) of the own. It is determined whether or not the D conversion value is large (step S37).
When it is determined that the A / D conversion value of the display 10 on its right side (left side as viewed from the user side) is large (S37: YES), a signal “0” is transmitted to the OSD processing unit 14 and the decoding unit 13. (Step S38).
On the other hand, if it is determined that the A / D conversion value of the display on its left side (right side as viewed from the user side) is large (S37: NO), the signal strength determination unit 12 sends the signal to the OSD processing unit 14 and the decoding unit 13. On the other hand, a signal “1” is transmitted (step S39).

  As described above, in the second embodiment, the A / D conversion value of the display 10 existing around the display 10 having the maximum A / D conversion value is examined, and the display 10 having the second largest A / D conversion value is obtained. By searching and determining the display 10 having an A / D conversion value between the first place and the second place as a setting target by the OSD, it is possible to select an appropriate display 10 for the user.

Embodiment 3 FIG.
In the above-described embodiment, the configuration in which each display 10 includes the light receiving unit 11 that receives the infrared signal from the remote controller has been described. However, some of the plurality of displays 10, 10,. The structure provided with the light-receiving part 11 may be sufficient.

  In the third embodiment, a configuration in which only one light receiving unit 11 is provided for a multi-display device will be described. FIG. 10 is an explanatory diagram for explaining the operation of the multi-display apparatus according to the third embodiment. As shown in FIG. 10A, among the displays 10 arranged in a 3 × 3 array, the light receiving unit 11 is located at the left end (right end as viewed from the user) of the display 10 located on the right side and the middle stage as viewed from the user. It shall be provided.

The multi-display device includes a table (see FIG. 10B) that determines the display 10 to be set by the OSD based on the A / D conversion value of the remote control signal. The table shown in FIG. 10B indicates that the received signal has a small A / D conversion value (when the numerical value obtained by A / D conversion is 0 to 255, for example, a range of 0 to 95) from the user. It is specified that the display 10 (display of display number 1) in the left column is selected. Similarly, when the A / D conversion value of the received signal is medium (range 96 to 191), the display 10 (display of display number 2) in the center column is selected and the A / D conversion of the received signal is performed. When the value is large (range of 192 to 255), it is specified that the display 10 in the right column as viewed from the user (display of display number 3) is selected.
The multi-display apparatus uses the table as described above to determine the display 10 to be set by the OSD.

  It should be noted that the selection of the upper display, the middle display, or the lower display 10 may be determined in advance according to the installation position of the multi-display device. For example, when the multi-display apparatus is installed at a position higher than the user's line of sight, the lower display 10 is selected, and when the vicinity of the center of the multi-display apparatus is installed at the user's line of sight, the middle display 10 May be defined by a table so as to select.

  As shown by a solid line in FIG. 10A, when a user who is located away from the light receiving unit 11 performs a setting operation, the A / D conversion value of the signal from the remote controller operated by the user is small. (For example, a range of 0 to 95), the multi-display apparatus determines the middle left display 10 as viewed from the user as the display 10 to be set by the OSD.

  On the other hand, as shown by a broken line in FIG. 10A, when a user existing in the vicinity of the light receiving unit 11 performs a setting operation, an A / D conversion value of a signal from a remote controller operated by the user increases. (For example, a range of 192 to 255), the multi-display apparatus determines the display 10 in the middle right side as viewed from the user as a setting target by the OSD.

  As described above, in the third embodiment, there is a restriction that the display 10 to be selected needs to be limited to any one of the lower or middle display 10. However, as in the first embodiment, the multi-display is used. The apparatus can determine the display 10 in the vicinity of the user as a setting target by the OSD.

Embodiment 4 FIG.
In the fourth embodiment, a configuration in which two light receiving units 11 are provided for a multi-display device will be described.

  FIG. 11 is an explanatory diagram for explaining the operation of the multi-display device according to the fourth embodiment. In the present embodiment, as shown in FIG. 11A, among the displays 10 arranged in a 3 × 3 array, the left end side frame (viewed from the user) of the display 10 located on the right side and the middle stage as viewed from the user. It is assumed that the light receiving unit 11a is provided on the right end frame) and the light receiving unit 11b is provided on the right end frame (left end frame viewed from the user) of the display 10 located on the left side and the middle stage as viewed from the user.

In this case, the multi-display apparatus can compare the signal intensities (A / D conversion values) of the signals received by the two light receiving units 11a and 11b, and determine the display 10 to be set by the OSD based on the comparison result. it can. For example, when the setting operation is performed from the position shown in FIG. 11A, the A / D conversion value obtained from the left light receiving unit 11b when viewed from the user is the A obtained from the right light receiving unit 11a. Since the value becomes larger than the / D conversion value, the multi-display apparatus determines the display 10 located on the left side and the middle stage as viewed from the user as a setting target by the OSD.
On the other hand, when the setting operation is performed from the position shown in FIG. 11B, the A / D conversion value obtained from the right light receiving unit 11a as viewed from the user is A obtained from the left light receiving unit 11b. Since the value becomes larger than the / D conversion value, the multi-display apparatus determines the display 10 positioned on the right side and in the middle as viewed from the user as a setting target by the OSD.
When the A / D conversion values obtained from the two light receiving units 11a and 11b are approximately the same (for example, the difference between the A / D conversion values is within 20%), the multi-display device is arranged in the center column. The middle display 10 is determined as a setting target by the OSD.

  As described above, in the fourth embodiment, as in the third embodiment, although there is a restriction that the display 10 to be selected needs to be limited to one of the displays 10 arranged in the lower stage or the middle stage, Similar to the first embodiment, the multi-display apparatus can determine the display 10 in the vicinity of the user as a setting target by the OSD.

Embodiment 5 FIG.
In the fifth embodiment, a configuration in which three light receiving units 11 are provided for a multi-display device will be described.

  FIG. 12 is an explanatory diagram for explaining the operation of the multi-display apparatus according to the fifth embodiment. As shown in FIG. 12, the multi-display device according to the present embodiment includes a light receiving unit arranged in a left end frame (a frame on the right end side when viewed from the user) of the display 10 located on the right side and the lower stage when viewed from the user. 11a, a light receiving portion 11b arranged on the right end frame (the left end side frame when viewed from the user) of the display 10 located on the left side and the lower side as viewed from the user, and the upper end side frame of the display 10 located at the upper stage of the center row The light-receiving part 11c arrange | positioned at is provided.

  As in the fourth embodiment, the left / right direction can be specified by comparing the A / D conversion values of the light receiving units 11a and 11b arranged at the right and left ends of the multi-display device. Similarly, the vertical direction can be specified by comparing the A / D conversion values of the light receiving units 11c and 11b (or 11a) arranged at the upper end and the right end (or left end) of the multi-display device. .

  In the fifth embodiment, unlike the third and fourth embodiments, it is not necessary to set the vertical direction in the middle or lower in advance, and the A / D conversion values obtained from the three light receiving units 11a, 11b, and 11c are compared with each other. By doing so, it is possible to specify the display 10 in the vicinity of the user by specifying the horizontal direction and the vertical direction.

Embodiment 6 FIG.
A configuration may be adopted in which it is detected whether the user performing the setting operation is in the vicinity of the multi-display device or in a position separated from the multi-display device, and the scale for displaying the setting screen is changed according to the user's position. .
In the sixth embodiment, when a user who performs a setting operation is present in the vicinity of the multi-display device, an OSD setting screen is displayed at a normal scale, and the user who performs the setting operation exists at a position separated from the multi-display device. In this case, a configuration will be described in which a setting screen by OSD is displayed with an enlarged scale.

  FIG. 13 is an explanatory diagram for explaining the operation of the multi-display apparatus according to the sixth embodiment. When the multi-display apparatus according to the present embodiment displays an A / D conversion value range and a setting screen, for example, as shown in FIG. A table defining the relationship with the scale is stored in the storage unit 18. When the setting screen is displayed by comparing the A / D conversion value obtained from the detected remote control signal with the range of the A / D conversion value defined by the table, and determining which range it belongs to Determine the scale. That is, the distance between the user and the multi-display device is determined based on the strength of the remote control signal, and the scale of the setting screen is determined according to the strength.

  When the user to be judged is in the vicinity of the multi-display device (when the A / D conversion value is 96 or more), as shown in FIG. Display the setting screen in scale. On the other hand, when the setting target is displayed as shown in FIG. 13B, the position of the determination target user separated from the multi-display device (when the A / D conversion value is 95 or less). The image is enlarged to 200% and displayed.

As described above, in the sixth embodiment, since the OSD screen scale is set by determining whether the user is in the vicinity of the multi-display device or at a remote position, the user is not conscious of it. It is possible to provide an easy-to-view display.
In this embodiment, when the user is in the vicinity of the multi-display device, the scale is a normal scale, and when the user is in a remote position, the scale of the setting screen is 200%. However, the scale of the setting screen is as described above. The configuration is not limited, and the scale may be set more finely according to the A / D conversion value.

Embodiment 7 FIG.
In the above-described embodiment, a configuration in which the display 10 that displays the OSD setting screen is determined based on the signal strength of the signal received by the light receiving unit 11 and the setting screen is displayed on the display 10 closest to the user who performs the setting operation. However, the display 10 for which the display setting is to be set does not necessarily match the display 10 for displaying the setting screen, and the display 10 determined based on the A / D conversion value of the remote control signal as described above. On the other hand, the setting target may be appropriately selected.

  FIG. 14 is an explanatory diagram for explaining the operation of the multi-display device according to the seventh embodiment. As shown in FIG. 14A, it is assumed that a display number is assigned to each display 10. For example, display numbers # 1 to # 3 are assigned to the top three displays 10, 10, 10 from the left end as viewed from the user. Similarly, the three displays 10, 10, 10 in the middle , # 4 to # 6, the display numbers # 7 to # 9 are assigned to the three lower displays 10, 10, and 10.

Further, it is assumed that the display 10 having the maximum A / D conversion value using the same method as in the first embodiment is the display 10 of display number # 4. At this time, the OSD setting screen is displayed on the display 10 of display number # 4. The setting target on this setting screen may be the display 10 with the display number # 4 as shown in FIG. 14B, and as shown in FIG. 14C, the reference display (for example, the display number # 5). Or a central display 10) shown in FIG. Further, as shown in FIG. 14D, the display 10 at the uppermost left end with the smallest display number may be set.
In this way, it is possible to appropriately select the setting target display 10 and display the setting screen for the display 10 on the display 10 having the maximum A / D conversion value. When the display 10 for which the display setting is to be set is different from the display 10 for displaying the setting screen, the setting screen for the display 10 is displayed by receiving the setting value for the display 10 to be set in advance. Is possible.

It is also possible to configure so that the display 10 to be set can be sequentially changed by operating the remote controller. FIG. 15 is a schematic diagram illustrating a display example of a setting screen. The display number of the display 10 in which the A / D conversion value of the remote control signal received by the multi-display device is the maximum is # 7, and a setting screen for setting display on the display 10 of this display number is shown in FIG. Shown in In the example shown in FIG. 15A, the display number is displayed as # 7, indicating that the setting items include brightness, contrast, and the like.
Further, the multi-display device according to the present embodiment is configured such that the display number of the display 10 to be set and the setting values in each setting item can be changed by a user's remote control operation. For this reason, in this embodiment, by changing the display number of the display 10 to be set, the setting values of all the displays 10, 10,... be able to.

When the standard display is set, as shown in FIG. 15B, the setting value on the standard display is displayed as a reference value and the setting value on the display 10 to be set is displayed. Also good.
In this case, it is desirable to make the operation system easier to understand than simply inputting a numerical value by adopting a configuration in which fine adjustment is made in the form of +1 or −1 from the setting value of the reference display. This makes it easy to make adjustments while checking the balance of luminance and color between displays.

  Furthermore, it is good also as a structure which divides | segments a page for every setting item and displays the setting value of each display 10 on each page. For example, for the item “brightness”, it is also possible to display a set value for the display 10 of display numbers # 1 to # 9. Further, when it is difficult to see the display of each setting item, it may be configured to display in a scrolling form.

  In the seventh embodiment, since the setting target can be changed by changing the display number by remote control operation, the display 10 displaying the OSD setting screen and the display 10 designated as the setting target May be different. For this reason, you may perform the display which specifies the display 10 of setting object.

FIG. 16 is a schematic diagram showing an example in which the setting target display 10 is clearly shown. For example, the display for displaying the setting screen (the display having the maximum A / D conversion value) is the display 10a with the display number # 7, and the display designated as the setting target is the display 10b with the display number # 2. In this case, as shown in FIG. 16, the display 10b with the display number # 2 is displayed with the characters “display setting” to clearly indicate that the display is currently set.
Thereby, since the display 10b being set can be distinguished from other displays and displayed, it is obvious from the user which display is the target display 10b, and the ease of setting is improved.

  In the present embodiment, the display 10b being set is clearly indicated by displaying the character information “display setting”, but instead of displaying the character information, an appropriate image is displayed. Or, the display color of the screen, the brightness, and the like may be changed so that the display can be distinguished from other displays.

  In the above first to seventh embodiments, since the configuration is such that the user who performs the setting operation is determined by using the remote controller and the setting operation is accepted instead of inputting information by the touch panel, the user is away from the multi-display device. Since it is easy to recognize where the display 10 to be set is located even from the place, the setting work by the user is facilitated. In addition, by setting the OSD from a place away from the multi-display device, it is possible to select an appropriate setting value for each display while maintaining harmony between the displays.

  For example, the current remote control usage rule is that the remote control signal has a reach distance of 7 m and a range of ± 10 degrees from the front of the light receiving unit 11. It is possible to set while confirming.

  In actual measurement, it is possible to recognize a remote control signal even when the distance from the light receiving unit 11 is about 10 m and about ± 40 degrees from the front of the light receiving unit 11, but in a multi-display device, the user from the multi-display device There is a trade-off between the distance and character visibility.

  FIG. 17 is a schematic diagram illustrating another example of the setting screen. When setting for each display 10 of the multi-display device, not only a setting screen for one display 10 is displayed as shown in FIG. 17A, but also a plurality of displays as shown in FIG. 17B. It is good also as a structure which sets, referring the setting value of the other display 10 by displaying the setting screen with respect to 10, 10, ..., 10.

  Further, the normal setting screen shown in FIG. 17A and the setting screen shown in FIG. 17B shown in a list may be selected or switched. In this case, for example, when the display 10 to be set is selected from the list in FIG. 17B, the normal setting screen shown in FIG. 17A is displayed, and the setting screen for the selected display 10 is displayed. What is necessary is just to be the structure to do. Thereby, the display suitable for a condition is attained by the installation place, the configuration of the multi-display device, or the intention of the user.

Embodiment 8 FIG.
In the present invention, the adjustment method of the multi-display device described above can be recorded on a computer-readable recording medium that records a program to be executed by a computer. As a result, it is possible to provide a portable recording medium on which the program code (execution format program, intermediate code program, source program) for performing the processing is recorded.

  In the present embodiment, since this recording medium is processed by a microcomputer, the storage unit 18 shown in FIG. 2 may be the recording medium of the present invention. In addition, a program reading device may be provided as an external storage device (not shown), and a program medium that can be read by inserting a recording medium therein may be used.

  In any case, the stored program may be configured to be accessed and executed by the microprocessor, or in any case, the program code is read and the read program code is stored in the microcomputer. It may be downloaded to a program storage area (not shown) and the program may be executed. It is assumed that this download program is stored in the main device in advance.

Here, the program medium is a recording medium configured to be separable from the main body, such as a tape system such as a magnetic tape or a cassette tape, a magnetic disk such as a flexible disk or a hard disk, a CD-ROM / MO / MD / DVD, or the like. Optical discs, IC cards (including memory cards) / optical cards, etc., semiconductors such as mask ROM, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash ROM, etc. It may be a medium that carries a fixed program code including a memory.
The recording medium is read by a program reading device provided in an image display device or a computer system, thereby realizing the functions of the multi-display device described above.

DESCRIPTION OF SYMBOLS 10 Display 11 Light-receiving part 12 Signal strength determination part 13 Decoding part 14 OSD process part 15 Scaling part 16 Display process part 17 Control part 18 Storage part

Claims (8)

In a display device comprising a plurality of display units, the operation of each display unit can be controlled by a remote control device,
Each display section
Receiving means for receiving a control signal transmitted from the remote control device;
Means for calculating the signal strength of the control signal;
Means for acquiring the signal strength of the control signal calculated by the other display unit;
Compare the calculated signal strength with the signal strength of the control signal acquired from the other display unit, and whether the calculated signal strength is higher than the signal strength of any control signal acquired from the other display unit Determining means for determining whether or not;
Means for outputting a determination result by the determination means,
A display device that displays a setting screen for accepting a setting relating to adjustment of display based on a determination result output from each display unit on a display unit determined to have the highest signal strength of a control signal.   A display unit that identifies the display unit having the next highest signal strength after the display unit determined to have the highest signal strength of the control signal, and the display unit that has been identified as the receiving means included in the display unit that has been determined to have the highest signal strength of the control signal The display device according to claim 1, wherein the setting screen is displayed on a display unit existing between the receiving unit included in the display unit.   The display unit that displays the setting screen compares the signal strength of the control signal received with a predetermined value, and when the signal strength of the control signal is lower than the predetermined value, the setting screen is enlarged and displayed. The display device according to claim 1 or 2. The display part to be adjusted can be set.
The display for distinguishing from other display units is performed on the display unit for adjustment when the display unit for adjustment is different from the display unit for displaying the setting screen. 4. The display device according to any one of 3. In a display device comprising a plurality of display units, the operation of each display unit can be controlled by a remote control device,
Receiving means for receiving a control signal transmitted from the remote control device;
Means for calculating the signal strength of the control signal;
A table that defines the relationship between the signal intensity of the control signal and the display unit that is to display the setting screen for accepting the setting related to the adjustment of the display,
A display device that refers to the table, specifies a display unit on which the setting screen is to be displayed based on the calculated signal strength, and displays the setting screen on the specified display unit. In a display device comprising a plurality of display units, the operation of each display unit can be controlled by a remote control device,
A plurality of receiving means for receiving a control signal transmitted from the remote control device;
Means for calculating the signal strength of the control signal received by each receiving means;
Means for determining the level of each calculated signal strength;
Means for specifying a display unit on which a setting screen for accepting settings relating to adjustment of display is to be displayed based on a determination result by the means;
A display device that displays the setting screen on a specified display unit. In a computer program to be executed by a computer that controls operations of a plurality of display units,
In the computer,
Calculating the signal strength of the control signal input to each display unit;
The signal intensity calculated on one display unit is compared with the signal intensity calculated on the other display unit, and the signal intensity calculated on one display unit is calculated on the other display unit. Determining whether it is higher than any signal strength;
A computer program for executing a step of displaying a setting screen for receiving a setting relating to adjustment of display on a display unit determined to have the highest signal strength based on a determination result in the step.   A computer-readable recording medium on which the computer program according to claim 7 is recorded.

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