JP5839847B2 - Computer-aided calibration execution method and calibration execution system - Google Patents

Description

  The present invention relates to a computer-aided calibration execution method and calibration execution system for calibrating a multi-display apparatus in which screens of a plurality of display apparatuses are arranged vertically or horizontally.

  As a method for performing calibration of a multi-display device, there is one described in Patent Document 1. Here, one chromaticity sensor is assigned to each of the screens of a plurality of display devices arranged vertically and horizontally, and each chromaticity sensor detects a color value at one location on the screen of each display device, and each display is based on these color values. The color conversion coefficient of the screen of the device is obtained, and the color conversion of the screen of each display device is performed based on each color conversion coefficient.

  Further, in Patent Document 2, although it is different from the calibration of the multi-display device, the imaging surface is imaged by a camera, a plurality of markers appearing on the imaging surface are determined, and each marker on the imaging surface is determined. Based on this, the camera is calibrated.

Republished patent WO99 / 53693 JP 2008-14940 A

  By the way, the chromaticity and brightness are often not uniform across the entire screen of the display device. For this reason, calibration is performed so that the chromaticity and brightness at one location of each screen of the display devices constituting the multi-display device match. However, differences in chromaticity and brightness may be noticeable between other parts of the screen of each display device. For example, even if the chromaticity and luminance at the center of the screens of two adjacent display devices are matched, one chromaticity and luminance are high in the vicinity of each screen adjacent to each other, and the other chromaticity and luminance are In this case, unevenness in chromaticity and luminance are conspicuous between the screens of the display devices.

  In Patent Document 1, since the color conversion of the screen of each display device is performed using the color value of one screen of each display device detected by each chromaticity sensor, such a problem may occur. is there. That is, even if the color at one place on the screen of each display device can be set accurately, the difference between one color and the other color at the periphery of each screen close to each other is large. Therefore, the color unevenness between the screens of the display devices cannot be effectively suppressed.

  Further, in Patent Document 2, since the surface to be imaged is captured by a camera, it is possible to detect chromaticity and luminance of the entire surface to be imaged. For this reason, in Patent Document 1, the average color value of the entire screen of each display device is detected by the camera of Patent Document 2, and the color conversion of the screen of each display device is performed using these average color values. If this is done, the difference between one color and the other color around each screen adjacent to each other adjacent display devices is reduced, and color unevenness between the screens of each display device can be effectively suppressed. it can. However, such a camera is very expensive compared to the chromaticity sensor disclosed in Patent Document 1, and the arithmetic processing until the chromaticity and luminance of the entire screen of the display device are detected and the average value thereof is obtained. Was complicated.

  Therefore, the present invention has been made in view of the above-described conventional problems, and by using a calibration sensor, chromaticity and luminance unevenness between screens of each display device are effectively suppressed by a simple arithmetic process. An object of the present invention is to provide a computer-implemented calibration execution method and calibration execution system.

In order to solve the above-described problems, a computer-implemented calibration method according to the present invention uses a calibration sensor to calibrate a multi-display device in which screens of a plurality of display devices are arranged vertically or horizontally. The computer performs the calibration of the display device to be calibrated according to the presence or absence of another display device that has completed calibration adjacent to the screen of the display device to be calibrated. A sensor setting step for setting at least one detection position of the calibration sensor on the screen, and a calibration target based on the detection output of the calibration sensor arranged at the detection position set in the sensor setting step display Performing a calibration step of calibrating the location of the screen, in the sensor setting step, if the calibration adjacent to the screen of the display device subject to the calibration there is another display device ended In addition, the detection position of the calibration sensor is set closer to the center of the screen of the other display device that has finished calibration than the center of the screen on the screen of the display device to be calibrated, and the sensor setting. Before the process, the number of screens of other adjacent display devices is obtained for each display device, and the screen of the display device is calibrated as the number of screens of the other adjacent display devices increases. A rank setting process for setting a higher rank is performed, and the calibration is performed according to the rank set in the rank setting process. Select screen of the display device as the emission of interest to implement the sensor setting step and the calibration step.

In such a calibration execution method of the present invention, when there is another display device that has finished calibration adjacent to the screen of the display device to be calibrated, the display device to be calibrated On the screen, you can set the location close to the screen of another display device that has been calibrated and the center of the screen as the detection position of the calibration sensor, and adjust the chromaticity and brightness of this close location, By making the chromaticity and luminance of the adjacent portions close to the chromaticity and luminance of the screens of other display devices, unevenness in chromaticity and luminance between the screens of each display device can be effectively suppressed. If there is no other display device that has been calibrated next to the screen of the display device to be calibrated, the center position of the screen of the display device to be calibrated is used as the detection position of the calibration sensor. It can be set and the chromaticity and brightness at the center of the screen of the display device can be adjusted appropriately.

Even if a plurality of calibration sensors are used, if the display screen is calibrated based on the average value of chromaticity and luminance detected by each calibration sensor, the calculation processing for calibration is performed. There is no complication. In addition, by setting the order in which the screens of the display devices are calibrated, it is possible to quickly calibrate all the screens of the display devices. In this way, when priority is given to the calibration of the screen of the display device having the largest number of screens of other adjacent display devices, it is easy to adjust the chromaticity and brightness of the screen of the priority display device. Conversely, when the chromaticity and brightness of the screens of many other display devices are preferentially adjusted, the color of the screen of one display device is matched to the chromaticity and brightness of the screens of many other display devices. It is necessary to adjust the degree and brightness, and this adjustment becomes difficult.

  The screens of other display devices adjacent to each other are screens of other display devices adjacent to each side of the screen of any display device, and other display devices adjacent to the diagonal direction of the screen of any display device. This screen shall not be included.

  For example, in the sensor setting step in the calibration execution method of the present invention, when there is no other display device that has completed calibration adjacent to the screen of the display device to be calibrated, the calibration sensor The detection position is set at the center of the screen of the display device to be calibrated.

  Alternatively, in the order setting step in the calibration execution method of the present invention, when there are a plurality of display device screens that maximize the number of the screens of the other adjacent display devices, Select and extract the screen of each display device that maximizes the number of screens, obtain the number of screens of other adjacent display devices for each display device selected and extracted, and As the number of screens increases, the order of calibration of the screens of the display device is set higher.

  Thereby, even in a multi-display device in which a large number of display devices are arranged, it is possible to appropriately set the order in which the screens of the display devices are calibrated.

  For example, in the calibration execution method of the present invention, when there are a plurality of calibration sensor detection positions on the screen of the display device to be calibrated, a plurality of calibration sensors are respectively arranged at the respective detection positions. Use.

  Alternatively, in the calibration execution method of the present invention, when there are a plurality of calibration sensor detection positions on the screen of the display device to be calibrated, a single calibration sensor is sequentially moved to each detection position. Place and use.

  In this case, calibration can be performed with only a single calibration sensor.

  Further, in the sensor setting step in the calibration execution method of the present invention, the number of calibration sensor detection positions on the screen of the display device to be calibrated is terminated with the calibration adjacent to the screen of the display device. It is set to be more than the number of other display devices.

  As a result, on the screen of the display device to be calibrated, the respective positions corresponding to the number of other display devices that have finished the adjacent calibration are set as the detection positions of the calibration sensors. The chromaticity and brightness can be detected and adjusted, and the chromaticity and brightness of these portions can be brought close to the chromaticity and brightness of the screen of another display device that has finished calibration.

  Furthermore, in the calibration execution method of the present invention, the computer displays an indicator of the calibration detection position on the screen of the display device to be calibrated.

  As a result, the calibration sensor can be easily arranged at an appropriate position.

On the other hand, the calibration execution system of the present invention is a calibration execution system for calibrating a multi-display device in which screens of a plurality of display devices are arranged vertically or horizontally. Set at least one detection position of the calibration sensor on the screen of the display device to be calibrated according to the presence or absence of another display device that has completed calibration adjacent to the screen of the target display device; A computer that calibrates the screen of the display device to be calibrated based on the detection output of the calibration sensor arranged at the set detection position, the computer for each display device, Next to each other The number of screens of the display device is obtained, and the higher the number of screens of the other adjacent display devices, the higher the order in which the screens of the display device are calibrated, and the calibration according to the set order. If there is another display device that has completed calibration adjacent to the screen of the display device to be calibrated, the detection position of the calibration sensor is selected. The screen is set closer to the center of the screen of the other display device that has finished the calibration than the center of the screen on the screen of the display device to be calibrated.

  Such a calibration execution system of the present invention also has the same operational effects as the calibration execution method of the present invention.

  In the present invention, when there is another display device that has finished calibration adjacent to the screen of the display device to be calibrated, the calibration is displayed on the screen of the display device to be calibrated. A location close to the screen of another display device that has been calibrated can be set as the sensor detection position, and the chromaticity and brightness of this close location can be adjusted. Can be made close to the chromaticity and brightness of the screens of other display devices, and unevenness in chromaticity and brightness between the screens of each display device can be effectively suppressed. If there is no other display device that has been calibrated next to the screen of the display device to be calibrated, the center position of the screen of the display device to be calibrated is used as the detection position of the calibration sensor. It can be set and the chromaticity and brightness at the center of the screen of the display device can be adjusted appropriately.

  Even if a plurality of calibration sensors are used, if the display screen is calibrated based on the average value of chromaticity and luminance detected by each calibration sensor, the calculation processing for calibration is performed. There is no complication.

It is a figure showing roughly one embodiment of the calibration execution system of the present invention. It is a block diagram which shows the structure of each display apparatus and personal computer (PC) in the calibration implementation system of FIG. It is a flowchart which shows the outline of the implementation procedure of calibration by PC. It is a figure which illustrates the window displayed on the screen of the display part of PC, and is used in order to set the arrangement | sequence of the screen of each display apparatus. It is a figure which illustrates the input data which shows whether the screen of another display apparatus exists in the upper, lower, right, and left of the screen of a display apparatus for every screen of each display apparatus. (A) is a chart showing the number of other adjacent display devices for each screen of the 20 display devices, and (b) is the maximum number of other adjacent display devices in (a). 6 is a chart in which the number of display devices adjacent to each other is extracted for each screen of the extracted display devices. It is a figure which shows the location where the calibration sensor in the screen of a display apparatus is arrange | positioned according to the screen of each display apparatus. It is a figure which illustrates the window which displayed on the screen of the display part of PC, and showed the result of the calibration of the screen of each display apparatus. 4 is a flowchart showing in detail a process for automatically setting the priority order of each display device in the flowchart of FIG. 3. It is a flowchart which shows the process following FIG. 9A. (A)-(d) is a figure which illustrates the arrangement | sequence of the screen of each display apparatus. 9B is a flowchart showing in detail a process for automatically setting priorities “2” and later in the flowchart of FIG. 9B. FIG. 4 is a flowchart showing in detail a process for obtaining and setting at least one detection position of a calibration sensor on the screen of the display device in the flowchart of FIG. 3. 5 is a flowchart showing in detail a process for performing calibration of the screen of the display device.

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

  FIG. 1 is a diagram schematically showing an embodiment of a calibration execution system of the present invention. The calibration execution system CS of the present embodiment performs calibration of a multi-display device MD in which, for example, the screens of six display devices m1 to m6 are arranged vertically and horizontally. A plurality of calibration sensors 1 for detecting the chromaticity, luminance, gamma value, etc. of the screen, and a computer (hereinafter referred to as a PC) for calibrating the screens of the display devices m1 to m6 based on the detection output of each calibration sensor 1 3).

  Each calibration sensor 1 receives screen light by a light receiving element built in the sensor and detects the chromaticity, luminance, gamma value, etc. of the screen, and can be applied to commercially available general-purpose products. It is. Each calibration sensor 1 is connected to the PC 3 through each cable 2 and is used by being arranged on the screen of each display device m1 to m6 by the user. Each calibration sensor 1 measures and detects the luminance, chromaticity, gamma value, etc. (hereinafter also referred to as display adjustment values) of the screens of the display devices m1 to m6, and displays the screens of the display devices m1 to m6. A detection output indicating the adjustment value is output.

  Detection of display adjustment values on the screens of the display devices m1 to m6 is performed by at least one calibration sensor 1, and is performed in a preset order for each of the display devices m1 to m6.

  The PC 3 selects each of the display devices m1 to m6 as a calibration target in a preset order, and when the display adjustment value on the screen of the selected display device is detected by at least one calibration sensor 1, the calibration is performed. The display adjustment value indicated by the detection output of the sensor 1 is acquired, and the display device is controlled through the cable 2 so that the display adjustment value on the screen of the display device becomes a preset target value. That is, the PC 3 sequentially selects each of the display devices m1 to m6 and adjusts the brightness, chromaticity, gamma value, and the like of the screen of the display device to respective preset target values each time. As a result, differences in luminance, chromaticity, gamma value, and the like between the screens of the display devices m1 to m6 are reduced.

  By the way, in any of the display devices m1 to m6, the display adjustment values (luminance, chromaticity, gamma value, etc.) are often not uniform on the entire screen. For this reason, for example, the center of the screen of each display device m1 to m6 is used. Even if calibration is performed so that the display adjustment value becomes the target value, one display adjustment value is high and the other display adjustment value is low around the screens adjacent to each other between two adjacent display devices. In this case, display unevenness is conspicuous between the screens of the display devices.

  Therefore, in the calibration execution system CS of the present embodiment, the detection position (arrangement position) of the calibration sensor 1 on the screen is appropriately changed for each display device m1 to m6, that is, the display adjustment value on the screen is detected. The position to be adjusted is changed as appropriate so that display unevenness between the screens of each display device is not noticeable.

  Next, the configuration of each of the display devices m1 to m6 and the PC 3 for performing such calibration will be described.

  FIG. 2 is a block diagram illustrating the configuration of each of the display devices m1 to m6 and the PC 3. In FIG. 2, each of the display devices m1 to m6 is connected to a PC 3 through a cable 2 and a display drive unit 12 that displays and drives the display unit 11, a display unit 11 that displays and drives the display unit 11. A communication unit 13 that performs communication, an operation unit 14 that includes operation keys, a storage unit 15 that includes an HDD, a ROM, a RAM, and the like, and a control unit 16 that comprehensively controls the entire display device are provided.

  The communication unit 13 performs data communication with the PC 3 by a communication method compliant with RS-232C, USB, wired LAN, wireless LAN, HDMI (registered trademark), CEC (registered trademark), or the like.

  The control unit 16 includes a CPU and the like, and includes a command processing unit 21 that processes various commands, a pattern generation unit 22 that generates a calibration pattern displayed on the screen of each display device m1 to m6, and each display device m1. Image adjustment unit 23 that adjusts and sets display adjustment values (brightness, chromaticity, gamma value, etc.) of the screen of display unit 11 at m6, and operation processing unit 24 that executes an instruction input by operation of operation unit 14 Etc.

  On the other hand, the PC 3 is connected to each display device m1 to m6 and each calibration sensor 1 through the cable 2 and the display unit 31 including a liquid crystal display panel, and between the display devices m1 to m6 and each calibration sensor 1. A communication unit 33 that performs data communication, an operation unit 34 that includes operation keys, a storage unit 35 that includes an HDD, a ROM, a RAM, and the like, and a control unit 36 that controls the PC 3 in an integrated manner.

  The communication unit 33 communicates with the display devices m1 to m6 and the calibration sensors 1 by a communication method compliant with RS-232C, USB, wired LAN, wireless LAN, HDMI (registered trademark), CEC (registered trademark), and the like. Perform data communication with.

  The control unit 36 includes a CPU and the like, and includes a multi-display information input processing unit 41 that sets an arrangement of screens of the display devices m1 to m6 in the multi-display device MD, and a calibration sensor 1 on the screens of the display devices m1 to m6. A detection position processing unit 42 for setting the detection position, a display adjustment value processing unit 43 for acquiring a display adjustment value (luminance, chromaticity, gamma value, etc.) indicated by the detection output of the calibration sensor 1, and the acquired luminance A calibration processing unit 44 for obtaining respective adjustment amounts for adjusting and setting chromaticity, gamma value and the like to respective target values, a command generation unit 45 for generating a control command indicating each adjustment amount, and the like. Yes.

  Next, an outline of the calibration execution procedure by the PC 3 will be described with reference to the flowchart of FIG. Here, the display devices m1 to m6 arranged as shown in FIG. 1 will be described as representative examples.

  First, the user operates the operation unit 34 of the PC 3 to instruct display of a window for setting the screen arrangement of each of the display devices m1 to m6 constituting the multi display device MD. The multi-display information input processing unit 41 of the control unit 36 displays a window W1 as shown in FIG. 4 on the screen of the display unit 31 in response to the window display instruction by the operation of the operation unit 34 (step S101). .

  In the window W1 shown in FIG. 4, the horizontal arrangement number “3” and the vertical arrangement number “2” of each of the display devices m1 to m6 constituting the multi-display device MD are set by the operation of the operation unit 34 by the user. It is selected in the select boxes b1 and b2. In response to this, the multi-display information input processing unit 41 of the control unit 36 displays the arrangement of the display devices m1 to m6 in three rows in the horizontal direction and two columns in the vertical direction in the box b3 of the window W1, and also in the horizontal direction. The coordinate position (1, 1) of the display device m1, the coordinate position (2, 1) of the display device m2, and the coordinate position (3, 1) of the display device m3 in a coordinate system in which the direction is the X direction and the vertical direction is the Y direction. ), The coordinate position (1, 2) of the display device m4, the coordinate position (2, 2) of the display device m5, and the coordinate position (3, 2) of the display device m6. Further, the identification numbers ID1 to ID6 of the display devices m1 to m6 are entered in the box b4 by the operation of the operation unit 34 by the user. The identification numbers ID1 to ID6 of the display devices m1 to m6 may be automatically assigned according to the arrangement order of the display devices m1 to m6 and entered in the box b4.

  Subsequently, whether or not there are other display devices on the upper, right, lower, and left sides of the display device screen is input for each of the display devices m1 to m6 by operating the operation unit 34. For example, as shown in FIG. 5, for the display device m1 having the identification number ID1, “upper, right, lower, left” and “none, yes, yes, no” are input in association with each other. For the display device m2 having the identification number ID2, "upper, right, lower, left" and "no, yes, yes, yes" are input in association with each other. Furthermore, regarding the display device m3 having the identification number ID3, “upper, right, lower, left” and “none, no, yes, yes” are input in association with each other. For the display device m4 with the identification number ID4, “upper, right, lower, left” and “present, present, absent, none” are input in association with each other. Further, regarding the display device m5 having the identification number ID5, “upper, right, lower, left” and “present, present, absent, present” are input in association with each other. For the display device m6 having the identification number ID6, “upper, right, lower, left” and “present, absent, absent, present” are input in association with each other (step S102). In addition, instead of inputting the presence / absence of other upper, right, lower, and left display devices by operating the operation unit 34, the multi-display information input processing unit 41 of the control unit 36 may be used to input other upper, right, lower, and left display devices. The presence or absence of a display device may be determined. For example, based on the coordinate positions (X, Y) of the display devices m1 to m6, the presence or absence of other display devices on the upper, right, lower, and left can be determined for each display device m1 to m6.

  Then, the multi-display information input processing unit 41 of the control unit 36 associates the display device coordinate position, the identification number, the presence / absence of other display devices on the upper, right, lower, and left with each display device m1 to m6. Store in the storage unit 35.

  Subsequently, the screen of the display device that preferentially performs calibration is selected and set from the screens of the display devices m1 to m6 by the operation of the operation unit 34 by the user. For example, when the viewing point of the multi-display device MD is determined, the screen of the display device close to the viewing point is selected and set as the one to be preferentially calibrated (step S103). The multi-display information input processing unit 41 of the control unit 36 stores the coordinate position, identification number, and the like of the selected display device in the storage unit 35 as those to be preferentially executed.

  In step S103, an arbitrary priority setting condition can be set by operating the operation unit 34 by the user. For example, for each display device in which the number of screens of other adjacent display devices is the same, the lower display device priority N is set higher than the upper display device priority N, and the right display device An arbitrary priority setting condition for setting the priority N of the display device higher than the priority N of the left display device can be set.

  Alternatively, when an arbitrary priority setting condition is not set, a default priority setting condition is automatically set. For example, for each display device in which the number of screens of other adjacent display devices is the same, the priority N of the upper display device is set higher than the priority N of the lower display device, and A default priority setting condition for automatically setting the priority N of the display device higher than the priority N of the right display device is automatically set. Note that step S103 may be omitted.

  The screens of other display devices adjacent to each other are screens of other display devices adjacent to each side of the screen of any display device, and other display devices adjacent to the diagonal direction of the screen of any display device. This screen shall not be included.

  Next, the multi-display information input processing unit 41 of the control unit 36 sets the priority order N of each display device m1 to m6, and sets the priority order N of each display device m1 to m6 to the coordinate position and identification of each display device. The number is stored in the storage unit 35 in association with the number (step S104, order setting step). Specifically, referring to the data shown in FIG. 5 stored in the storage unit 35, the number of screens of other adjacent display devices is obtained for each of the display devices m1 to m6, and the screens of the other adjacent display devices are calculated. The higher the number, the higher the order in which the screen of the display device is calibrated. Here, the number of screens of other display devices adjacent to the display device m1 is “2”, the number of screens of other display devices adjacent to the display device m2 is “3”, and adjacent to the display device m3. The number of screens of other display devices that match is “2”, the number of screens of other display devices adjacent to the display device m4 is “2”, and the screens of other display devices adjacent to the display device m5 The number is “3”, and the number of screens of other display devices adjacent to the display device m6 is “2”. Accordingly, each of the display devices m2 and m5 in which the number of screens of other adjacent display devices is “3” has a high priority N, and each display in which the number of screens of the other adjacent display devices is “2”. The priority N of the devices m1, m3, m4, and m6 is lowered.

  However, each display device m2, m5 has the same number of screens of other adjacent display devices, and each display device m1, m3, m4, m6 also has the same number of screens of other adjacent display devices. Are the same. For this reason, for each display device in which the number of screens of other adjacent display devices is the same, the priority order N of the upper display device is set to the lower display device in accordance with the default priority setting conditions described above. The priority order N of the left display device is set higher than the priority order N of the right display device. In this case, the priority N of the display device m2 is “1”, the priority N of the display device m5 is “2”, the priority N of the display device m1 is “3”, and the priority N of the display device m3. Becomes “4”, the priority N of the display device m4 becomes “5”, and the priority N of the display device m6 becomes “6” (m2> m5> m1> m3> m4> m6).

  Alternatively, the priority N of the lower display device is set higher than the priority N of the upper display device in accordance with the above-described arbitrary priority setting condition, and the priority N of the right display device is set to the left You may set higher than the priority N of a display apparatus. In this case, the priority N of the display device m5 is “1”, the priority N of the display device m2 is “2”, the priority N of the display device m6 is “3”, and the priority N of the display device m4. Becomes “4”, the priority N of the display device m3 becomes “5”, and the priority N of the display device m1 becomes “6” (m5> m2> m6> m4> m3> m1).

  When the number of display devices with the highest priority N is “6” or more, select these display devices and set the number of screens of other adjacent display devices for each selected display device. In other words, the priority N may be set higher as the number of screens of other adjacent display devices increases. For example, as shown in FIG. 6A, in a multi-display device in which 20 display devices m are arranged in 4 × 5 rows in the vertical and horizontal directions, each of the 6 display devices m in the center is another adjacent display device. Since the number of screens of “4” is “4”, the six display devices m in the center are selected as shown in FIG. The number of screens is obtained, and the priority N is set higher as the number of screens of other adjacent display devices increases. For each display device m having the same priority N, the priority N is further set according to the priority setting condition.

  Note that the priority N of an arbitrary display device is set to the highest, and the priority N thereafter is set higher as the number of screens of other display devices closer to and adjacent to the display device increases. May be. For example, in each of the display devices m1 to m6 in FIG. 4, the priority order N of the display device m1 is set to “1”, and the priority order N of the display device m2 that is closer to the display device m1 among the display devices m2 and m5 is set. “2” is set, the priority N of the distant display device m5 is set to “3”, the priority N of the display device m4 is set to “4”, and the display device m3, m6 The priority N of the display device m3 closer to the display device m1 is set to “5”, and the priority N of the display device m6 farther away is set to “6” (m1> m2> m5> m4> m3> m6).

  Thus, the priority order N for performing the calibration of the screens of the respective display devices m1 to m6 is set, and the priority order N of each of the display devices m1 to m6 is associated with the coordinate position, the identification number, etc. of each display device. 35.

  Thereafter, the detection position processing unit 42 of the control unit 36 selects the display device with the highest priority N (step S105), and another display device that has finished calibration adjacent to the screen of the selected display device. The at least one detection position of the calibration sensor 1 on the screen of the selected display device is obtained and set according to the presence or absence of the display (step S106, sensor setting step). The command generation unit 45 of the control unit 36 is a pattern display command for instructing display of the sensor position designation pattern at the detected position so as to display the sensor position designation pattern at at least one detection position on the screen of the selected display device. The pattern display command is transmitted from the communication unit 33 to the display device with the highest priority N through the cable 2.

  For example, the priority N of the display device m2 is “1”, the priority N of the display device m5 is “2”, the priority N of the display device m1 is “3”, and the priority N of the display device m3 is “4”. If the priority N of the display device m4 is “5” and the priority N of the display device m6 is “6” (m2> m5> m1> m3> m4> m6), the display device m2 having the highest priority N is selected. However, as shown in FIG. 7, since there is no other display device that has completed the calibration adjacent to the screen of the selected display device m2, only the central portion P1 of the screen of the display device m2 is included in the calibration sensor 1. Obtained as a detection position, a pattern display command for instructing to display a sensor position designation pattern at the central portion P1 of the screen of the display device m2 is transmitted to the display device m2.

  In the display device m2, the pattern display command is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the pattern display command, acquires a sensor position designation pattern, and gives the sensor position designation pattern to the pattern generation unit 22. The pattern generation unit 22 displays the sensor position designation pattern on the central portion P1 of the screen of the display unit 11 of the display device m2 through the display driving unit 12. At this time, the user looks at the sensor position designation pattern displayed at the central portion P1 of the screen of the display device m2, places the calibration sensor 1 at the position of the sensor position designation pattern, and turns on the calibration sensor 1. To. In addition, the user operates the operation unit 34 of the PC 3 to instruct the start of calibration of the display device.

  In the PC 3, when the start of the display device calibration is instructed by the operation of the operation unit 34, in response to this, the command generation unit 45 generates a calibration command instructing to display the calibration display pattern. Then, the calibration command is transmitted from the communication unit 33 to the display device m2 through the cable 2.

  In the display device m2, the calibration command is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the calibration command, acquires a calibration display pattern, and gives the calibration display pattern to the pattern generation unit 22. The pattern generation unit 22 displays the calibration display pattern on the screen of the display unit 11 through the display driving unit 12. At this time, the calibration sensor 1 detects a display adjustment value (luminance, chromaticity, gamma value, etc.) of the screen center portion P1 of the display unit 11, and sends a detection output indicating the display adjustment value to the PC 3 through the cable 2. Is output.

  In the PC 3, the detection output indicating the display adjustment value on the screen of the display device m 2 is received by the communication unit 33 and input to the display adjustment value processing unit 43 of the control unit 36. The display adjustment value processing unit 43 acquires the display adjustment value (luminance, chromaticity, gamma value, etc.) of the screen center portion P1 of the display device m2 from the detection output of the calibration sensor 1, and calibrates this display adjustment value. This is given to the processing unit 44. The calibration processing unit 44 adjusts the luminance, chromaticity, gamma value, etc. to the respective target values based on the display adjustment values detected at the screen center location P1 of the display device m2. Then, an adjustment amount such as a gamma value is obtained, and these adjustment amounts are given to the command generation unit 45. The command generation unit 45 generates a display adjustment value control command indicating adjustment amounts such as luminance, chromaticity, and gamma value, and transmits the display adjustment value control command from the communication unit 33 to the display device m2 through the cable 2. (Step S107, calibration step). Further, the display adjustment value processing unit 43 stores adjustment amounts such as the luminance, chromaticity, and gamma value of the screen of the display device m2 in the storage unit 35 (step S108).

  In the display device m2, the display adjustment value control command is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the display adjustment value control command, acquires adjustment amounts such as luminance, chromaticity, and gamma value, and gives them to the video adjustment unit 23. The video adjustment unit 23 adjusts and changes the luminance, chromaticity, gamma value, and the like of the screen of the display unit 11 by the adjustment amounts such as luminance, chromaticity, and gamma value. As a result, the brightness, chromaticity, gamma value, and the like of the screen center portion P1 of the display unit 11 are adjusted to the respective target values, and the screen calibration ends.

  Subsequently, the control unit 36 of the PC 3 determines whether or not the calibration of all the screens of the display devices m1 to m6 in FIG. 4 has been completed (step S109), and ends the calibration of the screen of the display device m2. Therefore, the process returns to step S105, and the display device m5 with the priority N “2” is selected.

  Then, as shown in FIG. 7, since there is another display device m2 that has been calibrated adjacent to the screen of the display device m5 having the priority N “2”, the center location P2 of the screen of the display device m5, The other display device m2 for which calibration has been completed and the peripheral portion P3 of the screen of the adjacent display device m5 are obtained as detection positions of the calibration sensor 1 (step S106), and the central portion P2 and the periphery of the screen of the display device m5 are obtained. A pattern display command for instructing to display each sensor position designation pattern at the location P3 is transmitted to the display device m5.

  The display device m5 receives and analyzes the pattern display command, and displays the respective sensor position designation patterns at the central portion P2 and the peripheral portion P3 of the screen of the display unit 11. The user places two calibration sensors 1 at the positions of the sensor position designation patterns.

  When the start of the display device calibration is instructed by the operation of the operation unit 34, the PC 3 transmits a calibration command instructing to display the calibration display pattern to the display device m5.

  The display device m5 receives and analyzes the calibration command, and displays the calibration display pattern on the screen of the display unit 11. At this time, each calibration sensor 1 detects the display adjustment value of the center portion P2 of the screen of the display unit 11 and the display adjustment value of the peripheral portion P3, and outputs the detection output indicating these display adjustment values to the PC 3 through the cable 2. Is output.

  When the PC 3 receives the display adjustment value of the screen center location P2 and the display adjustment value of the peripheral location P3 of the display device m5, the average value of these display adjustment values (luminance, chromaticity, gamma value, etc.) is obtained. An adjustment amount of the display adjustment value for adjusting and setting the average value as the target value is obtained, and a display adjustment value control command indicating the adjustment amount is transmitted to the display device m2 (step S107). Further, the adjustment amount of the display adjustment value on the screen of the display device m5 is stored in the storage unit 35 (step S108).

  The display device m5 receives and analyzes the display adjustment value control command, acquires the adjustment amount of the display adjustment value, and adjusts and changes the display adjustment value on the screen of the display unit 11 by the adjustment amount of the display adjustment value. As a result, the display adjustment value of the central portion P2 and the display adjustment value of the peripheral portion P3 on the screen of the display unit 11 are adjusted so as to approach the target value, and the screen calibration ends.

  Subsequently, the PC 3 determines whether or not the calibration of all the screens of the display devices m1 to m6 in FIG. 4 has been completed (step S109), and if there are remaining display devices that have not been calibrated, (“Yes” in step S109), the process returns to step S105, the display device with the next priority N is selected, and the screen of the selected display device is calibrated (steps S106 to S108).

  Here, after the calibration of the screen of the display device m5 is completed, the display device m1, the display device m3, the display device m4, and the display device m6 are sequentially selected according to the priority N, and the calibration of each screen is sequentially performed. . As for the display device m1, as shown in FIG. 7, the center position P4 of the screen and the peripheral position P5 of the screen adjacent to the other display device m2 that has been calibrated are obtained as detection positions of the calibration sensor 1. Two calibration sensors 1 are arranged at the central portion P4 and the peripheral portion P5 of the screen, and each calibration sensor 1 detects the display adjustment value of the screen central portion P4 of the display unit 11 and the display adjustment value of the peripheral portion P5. An average value of these display adjustment values is obtained, and an adjustment amount of the display adjustment value for adjusting and setting the average value to the target value is obtained, and only the adjustment amount of the display adjustment value is displayed on the screen of the display unit 11. The display adjustment value is adjusted and changed so that the display adjustment value at the central portion P4 and the display adjustment value at the peripheral portion P5 on the screen of the display unit 11 approach the target value. Similarly, for the display device m3, the center position P6 of the screen and the peripheral position P7 of the screen adjacent to another display device m2 that has been calibrated are obtained as detection positions of the calibration sensor 1, and two calibrations are performed. The display sensor 1 detects the display adjustment value of the screen center portion P6 and the display adjustment value of the peripheral portion P7 of the display unit 11, obtains the average value of these display adjustment values, and adjusts the average value to the target value. An adjustment amount of the display adjustment value is obtained, and the display adjustment value of the screen of the display unit 11 is adjusted and changed by the adjustment amount of the display adjustment value. The display adjustment value of the peripheral part P7 is adjusted so as to approach the target value.

  For the display device m4, the center position P8 of the screen and the peripheral positions P9 and P10 of the screen adjacent to the other display devices m1 and m5 that have been calibrated are obtained as detection positions of the calibration sensor 1. Three calibration sensors 1 are arranged at the central portion P8 and the peripheral portions P9 and P10 on the screen, and the display sensor 11 detects the display adjustment values at three locations on the display unit 11 and averages these display adjustment values. A value is obtained, and an adjustment amount of the display adjustment value for adjusting and setting the average value to the target value is obtained, and the display adjustment value on the screen of the display unit 11 is adjusted and changed by the adjustment amount of the display adjustment value. The display adjustment values at three locations on the screen of the display unit 11 are adjusted so as to approach the target value. Similarly, for the display device m6, the center position P11 of the screen and the peripheral positions P12 and P13 of the screen adjacent to the other display devices m3 and m5 that have been calibrated are obtained as detection positions of the calibration sensor 1. Three display adjustment values of the display unit 11 are detected by the three calibration sensors 1, an average value of these display adjustment values is obtained, and a display adjustment value for adjusting and setting the average value to a target value is obtained. An adjustment amount is obtained, and the display adjustment value on the screen of the display unit 11 is adjusted and changed by the adjustment amount of the display adjustment value, and the display adjustment values at three locations on the screen of the display unit 11 are adjusted so as to approach the target value. The

  As described above, in the display device m5 having the priority order N “2”, the display adjustment value of the central portion P2 of the screen of the display unit 11 and the display adjustment of the peripheral portion P3 of the screen adjacent to the other display device m2 whose calibration has been completed. Therefore, the display unevenness between the screen of the display device m5 and the screen of the display device m2 becomes inconspicuous.

  In the display device m1 with the priority N “3”, the display adjustment value of the central portion P4 of the screen and the display adjustment value of the peripheral portion P5 of the screen adjacent to the other display device m2 for which calibration has been completed are targeted. Since the value is adjusted so as to approach the value, the display unevenness between the screen of the display device m1 and the screen of the display device m2 becomes inconspicuous. Similarly, in the display device m3 with the priority N “4”, the display adjustment value of the center portion P6 of the screen and the display adjustment value of the peripheral portion P7 of the screen adjacent to the other display device m2 for which calibration has been completed. Since the adjustment is made so as to approach the target value, the display unevenness between the screen of the display device m3 and the screen of the display device m2 becomes inconspicuous.

  Further, in the display device m4 with the priority N “4”, the display adjustment value of the central portion P8 of the screen and the display adjustment of the peripheral portions P9 and P10 of the screen adjacent to the other display devices m1 and m5 for which the calibration has been completed. Since the value is adjusted to approach the target value, display unevenness among the screen of the display device m4, the screen of the display device m1, and the screen of the display device m5 becomes inconspicuous. Similarly, in the display device m6, the display adjustment value at the central portion P11 of the screen and the display adjustment values of the peripheral portions P12 and P13 on the screen adjacent to the other display devices m3 and m5 that have finished calibration become target values. Since the adjustment is made to approach, display unevenness among the screen of the display device m6, the screen of the display device m3, and the screen of the display device m5 becomes inconspicuous.

  That is, in the multi-display device MD, display unevenness between the screens of the display devices m1 to m6 becomes inconspicuous.

  In addition, although a plurality of calibration sensors 1 are used, the screen of the display device is calibrated based on the average value of the display adjustment values detected by each calibration sensor 1, so that the calculation for calibration is performed. Processing is not complicated.

  Note that, after the calibration of the screens of the display devices m1 to m6 is finished, the display adjustment values on the screens of the display devices m1 to m6 are instructed by the operation of the operation unit 34 of the PC 3 by the user. In response to this, the control unit 36 displays a window W2 as shown in FIG.

  In the window W2 shown in FIG. 8, the identification numbers ID1 to ID6 of the display devices m1 to m6 are displayed in the box b11, and the arrangement of the display devices m1 to m6 constituting the multi-display device MD is displayed in the box b12. . When one of the identification numbers ID1 to ID6 of the display devices m1 to m6 in the box b11 is instructed by the operation of the operation unit 34, the display state of the display device of the instructed identification number in the box b12 changes, The display adjustment values (luminance, chromaticity, gamma value, etc.) of the display device with the specified identification number are displayed in the box b13. For this reason, the arrangement | sequence and display adjustment value of each display apparatus m1-m6 can be confirmed.

  Next, referring to the flowcharts of FIGS. 9A and 9B, the process of step S104 for automatically setting the priority N of each display device in the flowchart of FIG. 3 (multi-display information input processing unit of the control unit 36). The processing according to 41 will be described in detail. In addition, the code | symbol A, B, C is attached | subjected to the connection location of FIG. 9A and FIG. 9B. Further, here, the arrangement of each display device as shown in FIGS. 10A to 10D will be described as an example.

  First, the priority order N is initially set to “1” (step S201), and in step S103 in FIG. 3, whether a display device screen or an arbitrary priority setting condition for preferentially performing calibration is selected and set. It is determined whether or not (step S202).

  If the screen of the display device on which the calibration is preferentially performed or any priority order setting condition is not selected and set (“No” in step S202), the number of screens of other adjacent display devices is the maximum. Is obtained, and the obtained arrangement of the display device screens is stored in the memory area A of the storage unit 35 (step S203). For example, as shown in FIG. 10A, in a multi-display device in which the screens d1, d2, and d3 of three display devices are arranged in one row, the number of screens of other adjacent display devices is maximum (= 2). Only the screen d2 of the display device to be obtained is obtained, and the arrangement of the screen d2 is stored in the memory area A of the storage unit 35. Further, in the multi-display device in which the screens d11 to d16 of six display devices are arranged in 2 × 3 rows as shown in FIG. 10B, the number of screens of other adjacent display devices is maximum (= 3 ) Are obtained, and the arrangement of the screens d12 and d15 is stored in the memory area A of the storage unit 35. Furthermore, in the multi-display device in which 20 display devices are arranged in 4 × 5 rows as shown in FIG. 10C, the number of screens of other adjacent display devices is maximum (= 4). The screens d27 to d29 and d32 to d34 of the display device are obtained, and the arrangement of the screens d27 to d29 and d32 to d34 of each display device is stored in the memory area A of the storage unit 35.

  Thereafter, it is determined whether or not there are a plurality of display device screens in which the number of screens of other adjacent display devices in the memory area A of the storage unit 35 is maximum (step S204). For example, in the case of the multi-display device of FIG. 10A, since the array of the screens d2 of a single display device is stored in the memory area A of the storage unit 35, the number of screens of other adjacent display devices It is determined that there is not a plurality of screens of the display device that maximizes (“No” in step S204), and the process proceeds to step S205. Then, the priority N of the screen d2 of the single display device stored in the memory area A of the storage unit 35 is set to the initial setting value “1” (step S205), and the priority N is still set. Since the screens d1 and d3 of the display devices that are not present are left (“Yes” in step S206), the priority order N is incremented (step S207), and the screen of the display device of the next priority order is obtained. Then, the priority order of the screen of the display device is set (step S208). Further, when steps S206 to S208 are repeated and there is no screen on the display device for which the priority order N is not set (“No” in step S206), the processing in FIGS. 9A and 9B is terminated.

  In the case of the multi-display device of FIG. 10B, since the arrangement of the screens d12 and d15 of the two display devices is stored in the memory area A of the storage unit 35, the screens of other adjacent display devices. It is determined that there are a plurality of screens of the display device having the largest number (No in step S204), and the process proceeds to step S209. Then, for the screens of the respective display devices in the memory area A, the screen of the display device in which the number of screens of other adjacent display devices is the maximum (= 1) is obtained, and the obtained screen arrangement of the display devices is stored. The data is stored in the memory area B of the unit 35 (step S209). Here, the arrangement of the screens d12 and d15 of the two display devices is also stored in the memory area B of the storage unit 35.

  Therefore, the result of the determination is that the arrangement of the screens d12 and d15 of each display device in the memory area A matches the arrangement of the screens d12 and d15 of each display device in the memory area B (“Yes” in step S210). For each display device in which the number of screens of other adjacent display devices is the same, the priority order N of the upper display device is set higher than the priority order N of the lower display device, and The display device screen d12 is selected according to the default priority setting condition that the display device priority N is set higher than the right display device priority N, and the display device screen d12 is arranged in the memory area A. And the memory area A is updated (step S211).

  Thereafter, the priority N of the screen d12 of the single display device stored in the memory area A of the storage unit 35 is set to the initial setting value “1” (step S205). Since there are the screens d11 and d13 to d16 of the respective display devices for which the priority order N is not set (“Yes” in step S206), the priority order N is incremented (step S207), and the next priority order is set. The display device screen is obtained, and the priority order of the display device screen is set (step S208). Further, when steps S206 to S208 are repeated and there is no screen on the display device for which the priority order N is not set (“No” in step S206), the processing in FIGS. 9A and 9B is terminated.

  In the case of the multi-display device of FIG. 10C, the arrangement of the screens d27 to d29 and d32 to d34 of the six display devices is stored in the memory area A of the storage unit 35. It is determined that there are a plurality of display device screens having the maximum number of display device screens (“Yes” in step S204), and the process proceeds to step S209. Then, for the screen of each display device in the memory area A, the screen of the display device that maximizes the number of screens of other adjacent display devices is obtained, and the obtained screen arrangement of the display devices is stored in the memory of the storage unit 35. Store in area B (step S209). Here, the arrangement of the screens d28 and d33 of the two display devices is stored in the memory area B of the storage unit 35 as shown in FIG.

  Therefore, it is determined that the arrangement of the screens d27 to d29 and d32 to d34 of the six display devices in the memory area A does not match the arrangement of the screens d28 and d33 of the two display devices in the memory area B ( “No” in step S210). In this case, the array of the screens d28 and d33 of each display device in the memory area B is overwritten on the memory area A to update the memory area A (step S212), and the process returns to step S204.

  Then, it is determined that there are a plurality of display device screens having the maximum number of screens of other display devices adjacent to each other (“Yes” in step S204), and the screens of the display devices in the memory area A are adjacent to each other. The display device screens having the maximum number of display device screens (= 1) are obtained, that is, the arrangement of the screens d28 and d33 of the two display devices is obtained, and the screens d28 and d33 of the two display devices are obtained. Are stored in the memory area B of the storage unit 35 (step S209).

  At this time, a determination result is obtained that the arrangement of the screens d28 and d33 of each display device in the memory area A matches the arrangement of the screens d28 and d33 of each display device in the memory area B (“Yes” in step S210). For each display device in which the number of screens of other adjacent display devices is the same, the priority order N of the upper display device is set higher than the priority order N of the lower display device, and The display device screen d28 is selected in accordance with a default priority setting condition that the display device priority N is set higher than the right display device priority N, and the display device screen d28 is arranged in the memory area A. And the memory area A is updated (step S211).

  Thereafter, the priority N of the screen d28 of the single display device stored in the memory area A of the storage unit 35 is set to the initial setting value “1” (step S205). Since there are the screens d21 to d27 and d29 to d40 of each display device for which the priority order N is not set (“Yes” in step S206), the priority order N is incremented (step S207), and the next The screen of the display device with the priority order is obtained, and the priority order of the screen of the display device is set (step S208). Further, when steps S206 to S208 are repeated and there is no screen on the display device for which the priority order N is not set (“No” in step S206), the processing in FIGS. 9A and 9B is terminated.

  That is, in steps S201 to S205 and S209 to S211, the priority order N is initially set to “1”, a screen of the display device that maximizes the number of screens of other adjacent display devices is obtained, and another adjacent When the display device screen having the maximum number of display device screens is “6” or more, the display device screen having the maximum number of screens of other adjacent display devices among these display devices is selected. The screens of the display devices that have the maximum number of screens of other adjacent display devices are narrowed down, the screen of one display device is selected according to the default priority setting conditions, and the selected display device Is set to “1” as an initial setting value. In steps S206 to S208, the process of stepping up the priority order N, obtaining the screen of the display device of the next priority order, and setting the priority order of the screen of the display device is repeated. The screen of the display device after “2” is obtained and set.

  On the other hand, in step S103 of FIG. 3, when a user operates the operation unit 34, a screen of a display device that performs calibration preferentially or an arbitrary priority setting condition is selected and set (in step S202). “Yes”, it is determined whether or not there are a plurality of screens of the display device on which the calibration is preferentially performed (step S213).

  For example, if the screen of the display device that preferentially performs calibration is “single” (“No” in step S213), the screen array of this display device is stored in the memory area A of the storage unit 35; The process moves to step S205. Then, the priority N of the screen of the single display device stored in the memory area A of the storage unit 35 is set to the initial setting value “1” (step S205), and the priority N is still set. If there is a screen of each display device that does not exist (“Yes” in step S206), the priority N is incremented (step S207), and the screen of the display device of the next priority is obtained to obtain the display device. The priority order of the screens is set (step S208). Further, when steps S206 to S208 are repeated and there is no screen on the display device for which the priority order N is not set (“No” in step S206), the processing in FIGS. 9A and 9B is terminated.

  In addition, when there are a plurality of display device screens on which the calibration is preferentially performed (“Yes” in step S213), the number of screens of other display devices adjacent to each other in the array of these display device screens is the maximum. The display device screen to be obtained is obtained, the obtained display device screen arrangement is stored in the memory area A of the storage unit 35 (step S214), and then the display device arrangements in the memory area A are targeted. The above-described steps S204, S209, S210 and S212 are performed. Alternatively, even if the display device screen for performing the calibration preferentially is not set, if any priority setting condition is set (“Yes” in step S213), the screens of all the display devices are set. The display device screen having the maximum number of screens of other display devices adjacent to each other in the array is obtained, and the obtained display device screen array is stored in the memory area A of the storage unit 35 (step S214). ), Steps S204, S209, S210, and S212 described above are performed. As a result, the screens of the display devices that maximize the number of screens of other adjacent display devices in the memory area A are narrowed down.

  If an arbitrary priority setting condition is set in step S103 of FIG. 3, a screen of the display device is selected according to the arbitrary priority setting condition, and the arrangement of the selected display screen is stored in the memory area A. And the memory area A is updated (step S215).

  Further, it is confirmed whether or not the screen of the display device has been narrowed down to one according to an arbitrary priority setting condition (step S216). If the screen of the display device has been narrowed down to one (“No” in step S216). ) Immediately move to step S205, and if the screen of the display device is not narrowed down to one (“Yes” in step S216), the screen of the display device is narrowed down to one according to the default priority setting condition, The screen arrangement of the display device is overwritten on the memory area A to update the memory area A (step S211), and then the process proceeds to step S205.

  Then, the priority N of the screen of the single display device stored in the memory area A of the storage unit 35 is set to the initial setting value “1” (step S205), and each of the priority N is not set. If there is a screen of the display device (“Yes” in step S206), the priority N is incremented (step S207), the screen of the display device of the next priority is obtained, and the priority of the screen of the display device Is set (step S208). Further, when steps S206 to S208 are repeated and there is no screen on the display device for which the priority order N is not set (“No” in step S206), the processing in FIGS. 9A and 9B is terminated.

  Next, referring to the flowchart of FIG. 11, the process of step S <b> 208 for automatically setting the priority N “2” and later in the flowchart of FIG. 9B (the process by the multi-display information input processing unit 41 of the control unit 36). ) In detail. In addition, the code | symbol D is attached | subjected to the connection location of FIG.

  First, a display device screen (excluding a screen in which the priority N is already set) having the maximum number of screens of other adjacent display devices is obtained, and the obtained display device screen arrangement is stored in the storage unit 35. (Step S301).

  Then, it is determined whether or not there are a plurality of display device screens in which the number of screens of other adjacent display devices in the memory area A of the storage unit 35 is maximum (step S302). For example, when the screen of the display device in the memory area A of the storage unit 35 is single (“No” in step S302), the screen of the single display device stored in the memory area A of the storage unit 35 Is set to the priority order N set in step S207 of FIG. 9B (step S310), and the process of FIG. 11 is terminated.

  When there are a plurality of display device screens in the memory area A of the storage unit 35 (“Yes” in step S302), the screens of the other display devices adjacent to each other in the memory area A are displayed. The screen of the display device having the largest number (excluding the screen with the priority N already set) is obtained, and the obtained screen arrangement of the display device is stored in the memory area B of the storage unit 35 (step S303). .

  Further, it is determined whether or not the screen arrangement of each display device in the memory area A matches the screen arrangement of each display device in the memory area B (step S304). If they match (“Yes” in step S304). ) Immediately move to step S306. If they do not match (“No” in step S304), the screen area of each display device in the memory area B is overwritten on the memory area A to update the memory area A (step S305), and then step S302. Returning to step S302, the steps S302 to S304 are repeated to narrow down the screens of the display devices in which the number of the screens of the other adjacent display devices is maximum, and the screen arrangement of each display device in the memory area A and each of the screens in the memory area B When the screen arrangement of the display device matches ("Yes" in step S304), the process proceeds to step S306.

  Then, in step S103 of FIG. 3, it is determined whether or not an arbitrary priority setting condition is set (step S306), and if an arbitrary priority setting condition is not set (“No” in step S306). Immediately move to step S308. If an arbitrary priority setting condition is set (“Yes” in step S306), a screen of the display device is selected according to the arbitrary priority setting condition, and the arrangement of the selected display screen is stored in the memory area. After overwriting A and updating the memory area A (step S307), the process proceeds to step S308.

  Further, it is confirmed whether or not the screen of the display device is narrowed down to one according to an arbitrary priority setting condition (step S308), and if the screen of the display device is narrowed down to one (“No” in step S308). ) Immediately move to step S310, and if the display device screen is not narrowed down to one (“Yes” in step S308), the display device screen is narrowed down to one according to the default priority setting condition, The screen arrangement of the display device is overwritten on the memory area A to update the memory area A (step S309), and then the process proceeds to step S310.

  Then, the priority N of the screen of the single display device stored in the memory area A of the storage unit 35 is set to the priority N set in step S207 of FIG. 9B (step S310), and the screen of FIG. End the process.

  The processing in FIG. 11 is performed in step S208 in FIG. 9B every time the priority order N is incremented in step S207 in FIG. 9B, and the priority order N “2” and thereafter is displayed on the screen of each display device. Go assigned.

  Next, referring to the flowchart of FIG. 12, the display selected according to the presence or absence of another display device that has completed calibration adjacent to the screen of the display device selected according to the priority N in the flowchart of FIG. The processing in step S106 (processing by the detection position processing unit 42 of the control unit 36) for obtaining and setting at least one detection position of the calibration sensor 1 on the screen of the apparatus will be described in detail.

  First, in step S105 of FIG. 3, when a screen of a display device is selected according to priority N, it is determined whether or not the priority N of the screen of the selected display device is “1” (step S401). If the priority N of the screen of the selected display device is “1” (“Yes” in step S401), the center position of the screen of the selected display device is set as the detection position of the calibration sensor 1. Obtained (step S402).

  If the priority N of the screen of the selected display device is “2” or later (“No” in step S401), the center portion of the screen of the selected display device and the calibration is completed. And the peripheral portion of the screen of the selected display device adjacent to the display device is obtained as the detection position of the calibration sensor 1 (step S403).

  As a result, for example, on the screens of the display devices m1 to m6 as shown in FIG. 7, the respective locations P1 to P12 that are the detection positions of the calibration sensor 1 are set.

  Next, a process for performing calibration of the screen of the display device will be described in detail with reference to the flowchart of FIG. This calibration is triggered by the process of step S107 in the flowchart of FIG. 3, and is performed by the display devices m1 to m6, the calibration sensor 1, and the PC 3, and requires user operation.

  First, in steps S105 and S106 of FIG. 3, a screen of the display device is selected according to the priority N, and one or a plurality of locations (detection positions) where the calibration sensor 1 is arranged on the selected screen of the display device. When set, the command generation unit 45 of the PC 3 displays the sensor position designation pattern at the one or more locations in order to display the sensor position designation pattern at one or more locations on the screen of the selected display device. Is generated, and the pattern display command is transmitted from the communication unit 33 to the selected display device through the cable 2 (step S501).

  In the display device, the pattern display command is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the pattern display command, acquires a sensor position designation pattern, and instructs the pattern generation unit 22 to display the sensor position designation pattern at one or more locations. The pattern generation unit 22 displays the sensor position designation pattern on one or a plurality of locations on the screen of the display unit 11 of the display device where the calibration sensor 1 is disposed (step S502). At this time, the user looks at the sensor position designation pattern displayed on the screen of the display device and arranges the calibration sensors 1 at the positions of the one or more sensor position designation patterns (step S503). The plurality of calibration sensors 1 are turned on. In addition, the user operates the operation unit 34 of the PC 3 to instruct the start of calibration of the display device (step S504).

  In the PC 3, when the start of the display device calibration is instructed by the operation of the operation unit 34, in response to this, the command generation unit 45 generates a calibration command for instructing display of the display pattern for calibration. The calibration command is transmitted from the communication unit 33 to the display device through the cable 2 (step S505).

  In the display device, the calibration command from the PC 3 is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the calibration command, acquires a calibration display pattern, and instructs the pattern generation unit 22 to display the calibration display pattern. The pattern generation unit 22 displays the calibration display pattern on the screen of the display unit 11 (step S506).

  The command generation unit 45 of the PC 3 transmits a display adjustment value detection command for the screen of the display device from the communication unit 33 to the one or more calibration sensors 1 via the cable 2 (step S507).

  When the one or more calibration sensors 1 receive the detection command from the PC 3 (step S508), in response to this, display adjustment values (luminance, chromaticity) of the arrangement location of the calibration sensor 1 on the screen of the display unit 11 , And a gamma value) (step S509), and a detection output indicating the display adjustment value is output to the PC 3 through the cable 2 (step S510).

  In the PC 3, the detection output indicating the display adjustment value on the screen of the display device is received by the communication unit 33 and input to the display adjustment value processing unit 43 of the control unit 36 (step S511). The display adjustment value processing unit 43 acquires display adjustment values (luminance, chromaticity, gamma value, etc.) of the screen of the display device from detection outputs of the one or more calibration sensors 1.

  At this time, when one calibration sensor 1 is arranged only at the center position on the screen of the display device, and the display adjustment value at the center position is detected by the calibration sensor 1, and this display adjustment value is acquired ( In step S 5012, “No”), this display adjustment value is given to the calibration processing unit 44. In addition, a plurality of calibration sensors 1 are arranged at the central location and the peripheral location on the screen of the display device, and the display adjustment values at the central location and the peripheral location are detected by each calibration sensor 1 to obtain these display adjustment values. If so (“Yes” in step S5012), the average value of each display adjustment value is obtained, and the average value of each display adjustment value is given to the calibration processing unit 44 (step S513).

  Alternatively, by multiplying each display adjustment value detected by each calibration sensor 1 by each weighting coefficient set in advance according to the arrangement position of each calibration sensor 1, each product is obtained, and these products are calculated. An average value may be obtained by dividing by the number of each calibration sensor 1, and this average value may be given to the calibration processing unit 44. For example, when emphasizing the display adjustment value at the central location on the screen of the display device, the weighting coefficient applied to the display adjustment value at the central location may be set larger than the weighting coefficient applied to the display adjustment value at the peripheral location. On the contrary, when emphasizing the display adjustment value of the peripheral part on the screen of the display device, the weighting coefficient applied to the display adjustment value of the peripheral part is set larger than the weighting coefficient applied to the display adjustment value of the central part.

  Then, when the display adjustment value processing unit 43 obtains the display adjustment values (luminance, chromaticity, gamma value, etc.) of the display screen, the luminance, chromaticity, gamma value, etc., luminance, chromaticity, and gamma value are obtained. Each difference with each target value set in advance is obtained, and it is determined whether or not these differences are within a preset allowable error (step S514). For example, if these differences are within the allowable error (“Yes” in step S514), it is not necessary to adjust the display adjustment value on the screen of the display device, and the processing in FIG.

  If at least one of the differences is not within the tolerance (“No” in step S514), the display adjustment value processing unit 43 calibrates the display adjustment values (luminance, chromaticity, gamma value, etc.) on the display screen. To the processing unit 44. Based on the display adjustment value, the calibration processing unit 44 obtains adjustment amounts such as luminance, chromaticity, and gamma value for adjusting and setting the luminance, chromaticity, and gamma value to the respective target values. Is provided to the command generation unit 45 (step S515). The command generation unit 45 generates a display adjustment value control command indicating adjustment amounts such as luminance, chromaticity, and gamma value, and transmits the display adjustment value control command from the communication unit 33 to the display device through the cable 2 ( Step S516).

  In the display device, the display adjustment value control command is received by the communication unit 13 and input to the command processing unit 21 of the control unit 16. The command processing unit 21 of the control unit 16 analyzes the display adjustment value control command, acquires adjustment amounts such as luminance, chromaticity, and gamma value, and gives them to the video adjustment unit 23. The video adjustment unit 23 adjusts and changes the luminance, chromaticity, gamma value, and the like of the screen of the display unit 11 by the adjustment amounts such as luminance, chromaticity, and gamma value (step S517).

  Thereafter, Steps S507 to S514 are performed again, and if the difference between the display adjustment values (luminance, chromaticity, gamma value, etc.) on the display screen and each target value is within an allowable error, the processing of FIG. If it is not within the allowable error, steps S515 to S517 are performed again, and the process returns to steps S507 to S514. Accordingly, steps S507 to S514 are repeated until the respective differences between the display adjustment values (luminance, chromaticity, gamma value, etc.) on the display screen and the respective target values are within an allowable error.

  Such processing of FIG. 13 is repeated every time a screen of the display device is selected according to the priority N in steps S105 and S106 of FIG. Is implemented.

  In the above-described embodiment, a plurality of calibrations 1 are arranged at respective locations on the screen of the display device. However, a single calibration sensor 1 is sequentially arranged at each location on the screen of the display device. Alternatively, the display pattern for calibration may be displayed on the screen of the display device, and the display adjustment value at that location may be detected by the calibration sensor 1.

  As mentioned above, although preferred embodiment and modification of this invention were described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. It is understood.

1 Calibration sensor 2 Cable 3 Computer (PC)
DESCRIPTION OF SYMBOLS 11 Display part 12 Display drive part 13 Communication part 14 Operation part 15 Storage part 16 Control part 21 Command processing part 22 Pattern generation part 23 Image adjustment part 24 Operation processing part 31 Display part 33 Communication part 34 Operation part 35 Storage part 36 Control part 41 multi-display information input processing unit 42 detection position processing unit 43 display adjustment value processing unit 44 calibration processing unit 45 command generation unit CS calibration execution system MD multi-display devices m1 to m6 display device

Claims (8)

A calibration execution method by a computer that calibrates a multi-display device in which screens of a plurality of display devices are arranged vertically or horizontally using a calibration sensor,
The computer
At least one detection position of the calibration sensor on the screen of the display device to be calibrated according to the presence or absence of another display device that has been calibrated adjacent to the screen of the display device to be calibrated. A sensor setting process to be set;
A calibration step of calibrating the screen of the display device to be calibrated based on the detection output of the calibration sensor arranged at the detection position set in the sensor setting step ,
In the sensor setting step, when there is another display device that has completed calibration adjacent to the screen of the display device to be calibrated, the detection position of the calibration sensor is set as the calibration target. Set near the center of the screen of the other display device that has finished calibration than the center of the screen on the screen of the display device,
Before the sensor setting step, the number of screens of other adjacent display devices is obtained for each display device, and the screen calibration of the display device increases as the number of screens of the other adjacent display devices increases. The order setting process is performed to set the order in which the action is performed higher.
A computer-implemented calibration method , wherein a screen of the display device to be calibrated is selected according to the order set in the order setting step, and the sensor setting step and the calibration step are performed . A computer-implemented method according to claim 1,
In the sensor setting step, when there is no other display device that has finished calibration adjacent to the screen of the display device to be calibrated, the detection position of the calibration sensor is the calibrated object. A computer-implemented calibration method, characterized by being set at the center of the screen of the display device. A computer-implemented calibration method according to claim 1 or 2 ,
In the order setting step, when there are a plurality of display device screens that maximize the number of screens of the other adjacent display devices, each display that maximizes the number of screens of the other adjacent display devices. Select and extract the screen of the device, and for each display device selected and extracted, obtain the number of screens of other adjacent display devices, the more the number of screens of other adjacent display devices, the more A computer-implemented calibration method, characterized in that the order of calibration of the screen of the display device is set high. A computer-implemented calibration method according to any one of claims 1 to 3,
When a plurality of calibration sensors are detected on the screen of the display device to be calibrated, a plurality of calibration sensors are arranged and used at the respective detection positions. Method. A computer-implemented calibration method according to any one of claims 1 to 3 ,
When the calibration sensor has a plurality of calibration sensor detection positions on the display screen to be calibrated, a single calibration sensor is sequentially moved to each of the detection positions and used. Implementation method. A method for performing calibration by a computer according to any one of claims 1 to 5 ,
In the sensor setting step, the number of calibration sensor detection positions on the screen of the display device to be calibrated is set to be equal to or greater than the number of other display devices that have completed calibration adjacent to the display device screen. A computer-implemented method for performing calibration. A method for performing calibration by a computer according to any one of claims 1 to 6 ,
A computer-implemented calibration method, wherein the computer displays an indicator of a calibration detection position on a screen of a display device to be calibrated. A calibration execution system for calibrating a multi-display device in which screens of a plurality of display devices are arranged vertically or horizontally,
A calibration sensor,
At least one detection position of the calibration sensor on the screen of the display device to be calibrated according to the presence or absence of another display device that has been calibrated adjacent to the screen of the display device to be calibrated. A computer that sets and calibrates the screen of the display device to be calibrated based on the detection output of the calibration sensor arranged at the set detection position;
The computer obtains the number of screens of other adjacent display devices for each display device, and the order in which the screens of the display devices are calibrated as the number of screens of the other adjacent display devices increases. Other display devices that have completed calibration adjacent to the screen of the display device to be calibrated, select the screen of the display device to be calibrated according to the set order. If there is, set the detection position of the calibration sensor closer to the center of the screen of the other display device that has finished calibration than the center of the screen on the screen of the display device to be calibrated. A calibration execution system characterized by that.

Images