JP6186911B2 - Display device setting device, display device setting method and program - Google Patents

Description

  The present invention relates to a display device setting device, a display device setting method, and a program.

  As a prior art described in the publication, in a monitor profile creation system that measures and adjusts tone reproduction characteristics, whiteness, etc. in a color monitor and creates a monitor profile, a connected monitor (CRT color display, Depending on the type of liquid crystal color display, notebook personal computer display, etc., there are those that change the color conversion target of the image displayed on the monitor (see Patent Document 1).

  Further, as a prior art described in other publications, when performing color matching of a color monitor, depending on the type of measuring instrument (contact type, non-contact type, etc.) that measures the color of the image displayed on the color monitor, etc. Some devices change the target luminance in color matching (see Patent Document 2).

JP 2005-208982 A JP 2005-250265 A

  An object of the present invention is to suppress unnecessary adjustment in color matching according to the type of display device.

According to the first aspect of the present invention, there is provided a type acquisition means for acquiring type information representing a type of a display device that displays an image, and a white luminance and a white color that are adjustment targets of the display device based on the type information. The display device setting device includes an adjustment target determining unit that determines whether or not to adjust each temperature .

According to a second aspect of the present invention, when the type information is a PC liquid crystal monitor and the display device for displaying an image is a PC liquid crystal monitor, the adjustment target determining means 2. The display device setting device according to claim 1 , wherein neither the luminance nor the white color temperature is determined to be adjusted .
According to a third aspect of the present invention, when one of the type information is a portable information terminal and the display device for displaying an image is for a portable information terminal, the adjustment target determining means of the luminance and the white color temperature is a setting device for a display device according to claim 1, wherein the determining and adjusting only a luminance of white.

According to a fourth aspect of the present invention, there is provided a step of obtaining type information indicating a type of a display device that displays an image, and based on the type information, white brightness and white color temperature to be adjusted by the display device. And a step of determining whether or not to adjust each .

According to a fifth aspect of the present invention, there is provided a computer having a function of acquiring type information indicating a type of a display device that displays an image, and white brightness and white of an adjustment target of the display device based on the type information . This program realizes a function for determining whether or not to adjust each color temperature .

According to the first aspect of the present invention, unnecessary adjustment in color matching can be suppressed according to the type of the display device, as compared with the case where the present configuration is not provided.
According to the second aspect of the invention, as compared with the case not having this constitution, for example, it can be made unnecessary adjustment of brightness and color temperature in the liquid crystal monitor PC.
According to the invention described in claim 3, compared with the case where the present configuration is not provided, for example , adjustment of the color temperature in the portable information terminal can be made unnecessary .
According to the invention described in claim 4, it is possible to suppress unnecessary adjustment in color matching according to the type of the display device as compared with the case where the present configuration is not provided.
According to the fifth aspect of the present invention, unnecessary adjustment in color matching can be suppressed according to the type of the display device, as compared with the case where the present configuration is not provided.

It is the figure which showed an example of the structure of the image display system to which embodiment of this invention is applied. It is the figure which showed the hardware constitutions of the computer apparatus. It is the figure which showed the function structural example of the computer apparatus. It is a flowchart which shows the process sequence in the color matching operation | movement of a display apparatus. It is a figure which shows an example of a reference | standard information table. It is a figure which shows an example of a parameter table. It is a figure which shows an example of the input screen of classification information.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating an example of a configuration of an image display system 10 to which the exemplary embodiment is applied.
The image display system 10 includes a computer device 20 that creates image data for display, a display device 30 that displays an image based on the image data created by the computer device 20 on a display screen, and the computer device 20. And an input device 40 that receives input and the like. The computer device 20 provided in the image display system 10 is connected to a network 50 for communicating with other devices.

  In the image display system 10, the computer device 20 and the display device 30 are connected via a DVI (Digital Visual Interface), and the computer device 20 and the input device 40 are connected via a USB (Universal Serial Bus). . The computer device 20 and the display device 30 may be connected via HDMI (High-Definition Multimedia Interface: registered trademark) or DisplayPort instead of DVI.

  The computer device 20 is a so-called general-purpose personal computer (PC). The computer device 20 executes image data creation and the like by operating various application software under the management of an OS (Operating System).

  Further, the display device 30 is configured by a device having a function of displaying an image by additive color mixing, such as a liquid crystal display for a PC, a liquid crystal television, or a projector. Therefore, the display method in the display device 30 is not limited to the liquid crystal method.

  Furthermore, examples of the input device 40 include a keyboard device and a mouse device.

  In the present embodiment, a portable information device such as a so-called notebook PC or a so-called tablet terminal can be grasped as the image display system 10 including the computer device 20, the display device 30, and the input device 40.

  In the image display system 10, for example, an image based on image data created using the input device 40 and the computer device 20 is displayed on a display screen 31 (see FIG. 3 described later) of the display device 30. Here, when product design or the like is performed using application software that operates on the computer device 20, it is required to display an image in a correct color on the display screen 31 in the display device 30. For this reason, in the image display system 10, a color matching operation for calibrating the color of the image displayed on the display screen 31 of the display device 30 can be executed. Here, the color matching operation according to the present embodiment includes a hardware color matching operation for adjusting the color temperature and luminance of the display device 30 to a target size by changing hardware settings, and a computer. A software color matching operation for creating a color conversion profile used for color conversion processing in the apparatus 20 according to device characteristics of the display apparatus 30 is included. The color conversion profile is used when a color conversion process is executed in the video card of the computer device 20, the OS, or an application used in the computer device 20.

FIG. 2 is a diagram illustrating a hardware configuration of the computer apparatus 20.
The computer device 20 is realized by a personal computer or the like as described above. The computer device 20 includes a CPU (Central Processing Unit) 20a which is a calculation means, a main memory 20b and a HDD (Hard Disk Drive) 20c which are storage means. Here, the CPU 20a executes various programs such as an OS and application software. The main memory 20b is a storage area for storing various programs and data used for execution thereof, and the HDD 20c is a storage area for storing input data for various programs, output data from the various programs, and the like. Further, the computer device 20 includes a communication interface (hereinafter referred to as “communication I / F”) 20 d for performing communication with the input device 40, the display device 30, and the outside including the network 50.

  As a form of provision relating to this program, there is a form in which the program is provided in a state stored in advance in the HDD 20c and loaded into the main memory 20b. Further, there is a mode in which a program is transmitted to the computer device 20 via a network 50 (see FIG. 1) such as the Internet, installed in the HDD 20c via the communication I / F 20d, and loaded into the main memory 20b. Furthermore, there is a form in which the main memory 20b is loaded from an external recording medium such as a DVD-ROM or a flash memory.

FIG. 3 is a diagram illustrating a functional configuration example of the computer apparatus 20 according to the present embodiment.
The computer device 20 includes a display device setting unit 21 for setting the display device 30 including setting of display conditions on a display screen 31 provided in the display device 30 and creation of a color conversion target in the display device 30, and the display device A color conversion profile creation unit 22 that creates a color conversion profile to be used in color conversion using the color conversion target set by the setting unit 21 and a color conversion profile created by the color conversion profile creation unit 22 from the outside. A color conversion unit 23 that performs color conversion processing on the input color signal (RGB) and outputs the converted color signal (R′G′B ′) to the display device 30 is provided.

  Among these, the display device setting unit 21 receives the type information indicating the type of the display device 30 input via the input device 40 and the type information received by the input reception unit 211. A color conversion target setting unit 212 that sets a color conversion target of the display device 30 based on the reference information table (details will be described later) that associates type information of various display devices including the display device 30 with reference characteristics thereof. The reference information storage unit 213 to store, the reference information acquisition unit 214 that acquires the reference information corresponding to the type information received by the input reception unit 211 from the reference information storage unit 213, and the reference information acquired by the reference information acquisition unit 214 An adjustment target determining unit 215 that determines an adjustment target of display characteristics (display setting) in the display device 30 is provided. Here, in the present embodiment, the input reception unit 211 is the type acquisition unit, the reference information acquisition unit 214 is the reference acquisition unit, the adjustment target determination unit 215 is the target determination unit, and the color conversion target setting unit 212 is the target determination unit. Each of these functions as a means. Details of the type information, the reference information, and the adjustment target will be described later.

Next, the color matching operation of the display device 30 in the image display system 10 of the present embodiment will be described in detail. Here, it is assumed that the target of the white color temperature displayed on the display screen 31 is 6500K, and the target of the white luminance displayed on the display screen 31 is 100 cd / m ² .

FIG. 4 is a flowchart showing a processing procedure in the color matching operation of the display device 30.
In this process, first, the input receiving unit 211 provided in the display device setting unit 21 of the computer device 20 receives an input regarding the type information of the display device 30 connected to the computer device 20 (step 110). Next, the reference information acquisition unit 214 provided in the display device setting unit 21 of the computer device 20 uses the reference information table stored in the reference information storage unit 213 based on the type information received by the input reception unit 211. Reference information corresponding to the type information is acquired (step 120). Further, the color conversion target setting unit 212 provided in the display device setting unit 21 of the computer device 20 sets the color conversion target of the display device 30 based on the type information received by the input receiving unit 211 (step 130). .

  Next, the adjustment target determination unit 215 provided in the display device setting unit 21 of the computer device 20 determines the display characteristic adjustment target in the display device 30 based on the reference information acquired by the reference information acquisition unit 214 (step 140). ). In step 140, the presence / absence of an adjustment target is determined, and if it is determined that there is an adjustment target, the characteristic (s) to be adjusted are determined.

  Then, the adjustment target determining unit 215 determines whether or not it is determined in step 140 that there is an adjustment target (step 150). If an affirmative determination (YES) is made in step 150, the display device 30 performs an adjustment operation for the adjustment target determined in step 140 (step 160), and proceeds to step 170 described later. On the other hand, if a negative determination (NO) is made in step 150, the process proceeds to step 170 as it is.

  Then, the color conversion profile creation unit 22 creates a color conversion profile to be used in the color conversion unit 23 based on the color conversion target acquired from the color conversion target setting unit 212 in the display device setting unit 21 (step 170), and color matching. Complete the operation.

Now, the content of the processing in the color matching operation described above will be described with a specific example.
FIG. 5 is a diagram illustrating an example of a reference information table stored in the reference information storage unit 213 provided in the display device setting unit 21 of the computer device 20. The basic information table shown in FIG. 5 is a table in which the types of a plurality of display devices including the display device 30, that is, type information, and the characteristics that are assumed for each display device, that is, reference information are associated with each other. In this example, there are three types of display devices (Type A, Type B, and Type C), and there are three types of display devices (white luminance, white color temperature, and color reproduction range).

Here, the type information includes information indicating the type (display method and application) of the display device, information specific to the display device (manufacturer, release year, type of display panel, manufacturing location), and the like.
Further, the reference information includes brightness, color temperature, gradation characteristics, black characteristics, gray balance, and the like in the initial setting of each display device. In general, if the types of display devices are the same, the initial settings often have similar characteristics even if the manufacturers are different. For example, in a single liquid crystal monitor sold for a PC, the initial color temperature is often set to about 6500K, and in a liquid crystal television, the initial color temperature is set to about 8000K to 9000K, which is higher than 6500K. There is much to be done.

In this example, for “Type A”, first, the brightness of white is “normal” (for example, 100 cd / m ² ), the color temperature of white is “neutral” (for example, 6500 K), and the color gamut is “level equivalent to sRGB”. It has become. For “Type B”, the brightness of white is “brighter than normal” (for example, 140 cd / m ² ), the color temperature of white is “higher than neutral (blue)” (for example, 9000 K), and the color gamut is “ It is wider than sRGB ". Further, for “Type C”, the brightness of white is “darker than normal” (for example, 60 cd / m ² ), the color temperature of white is “lower than neutral (red)” (for example, 4500 K), and the color reproduction range is “ Narrower than sRGB ".

  In this example, “Type A” is assumed to be a liquid crystal monitor for PC, “Type B” is assumed to be a liquid crystal television, and “Type C” is assumed to be a portable information device.

  6 corresponds to the types (type information) of a plurality of display devices including the display device 30, the color conversion target set in step 130 of FIG. 4 and the adjustment target determined in step 140 of FIG. It is a figure which shows an example of the attached parameter table. In this example, there are three types of display devices (Type A, Type B, and Type C) as in FIG.

  In this example, the color conversion target is “sRGB” in any of “Type A”, “Type B”, and “Type C”. That is, regardless of the type of display device, a common color space (here, sRGB) is set as a color conversion target.

  In this example, the adjustment target for “Type A” is “none”. “Type B” is “brightness and color temperature”. Further, for “TypeC”, the adjustment target is “luminance”.

  For example, if “Type A” is input as type information in step 110, the color conversion target is set to “sRGB” in step 130, and the adjustment target is set to “none” in step 140. Therefore, a color conversion profile is created in step 170 without adjustment in step 160.

  In the case of a display device such as Type A (liquid crystal monitor for PC), the initial setting of display characteristics (white luminance and white color temperature) often takes color management into consideration. Therefore, in this case, in order to prevent wasting time by tinkering with the adjustment of the white luminance and the white color temperature, the color conversion profile is created without performing these adjustments.

  For example, if “Type B” is input as type information in step 110, the color conversion target is set to “sRGB” in step 130, and the adjustment target is set to “luminance and color temperature” in step 140. Is set. Therefore, after adjusting the luminance and the color temperature in step 160, a color conversion profile is created in step 170.

  In the case of a display device (liquid crystal television) such as Type B, the initial setting of display characteristics is often aimed at emphasizing sharpness of an image without considering color management. Therefore, in this case, a color conversion profile is created after adjusting both the brightness of white and the color temperature of white.

  Further, for example, when “TypeC” is input as the type information in step 110, the color conversion target is set to “sRGB” in step 130, and the adjustment target is set to “luminance” in step 140. . Therefore, after the luminance is adjusted in step 160, a color conversion profile is created in step 170.

  In the case of a display device (portable information device) such as Type C, the initial setting of display characteristics is not intended for color management and is often aimed at, for example, extending the life of a battery. In the case of a display device such as Type C, it is often difficult to adjust display characteristics over a wide range. In this case, therefore, the white color temperature is not adjusted, and only the white luminance is adjusted, and then the color conversion profile is created.

In the above description, the type information (Type A, Type B, Type C) is directly input in Step 110, but the present invention is not limited to this.
FIG. 7 is a diagram illustrating an example of an input screen for type information displayed on the display screen 31 of the display device 30 in step 110, for example.
This input screen has a type setting reception area 301 that receives an input of the type of the display device, and a detailed setting reception area 302 that can receive an input after the type setting is completed. In this example, the type setting reception area 301 includes “liquid crystal monitor (single unit)”, “liquid crystal television”, “plasma television”, “projector”, “notebook PC”, “tablet terminal”, “others” as options. The user accepts settings by clicking a button on the left side of each item using a pointer (not shown). Further, in the detailed setting reception area 302, “manufacturer name”, “model number”, “release year”, and “panel information” are listed as items, and the user uses a pointer not shown to the right of each item. Clicking on the pro-down menu in Fig. 1 will allow further selectable items to appear and accept selections from these items.

  By adopting such a user interface, it becomes possible to suppress mistakes in setting type information by the user.

  In the present embodiment, the reference information table is stored in the reference information storage unit 213 (HDD 20c) provided in the display device setting unit 21 of the computer device 20, but the present invention is not limited to this. . For example, a database server (not shown) connected to the computer apparatus 20 via the network 50 is caused to function as the reference information storage unit 213, and the reference information is acquired from the database server when performing a color matching operation. It may be.

  In the present embodiment, the color conversion unit 23 is incorporated in the computer device 20 connected to the display device 30, but the present invention is not limited to this. For example, the color conversion unit 23 may be built in the display device 30, or another device (including a communication cable) including the color conversion unit 23 may be disposed between the computer device 20 and the display device 30. It doesn't matter. In addition, in the aspect in which the color conversion unit 23 is built in the computer device 20, it may be any of a built-in OS, a built-in application software operating on the OS, a built-in video card, and the like. .

  Furthermore, in the present embodiment, the input of the type information of the display device 30 is received via the input device 40 or the like, but is not limited to this. For example, EDID (Extended Display Identification Data) output from the display device 30 can be acquired and used as type information.

DESCRIPTION OF SYMBOLS 10 ... Image display system, 20 ... Computer apparatus, 20a ... CPU, 20b ... Main memory, 20c ... HDD, 20d ... Communication I / F, 21 ... Display apparatus setting part, 22 ... Color conversion profile preparation part, 23 ... Color conversion , 30 ... display device, 31 ... display screen, 40 ... input device, 50 ... network, 211 ... input reception unit, 212 ... color conversion target setting unit, 213 ... reference information storage unit, 214 ... reference information acquisition unit, 215 ... Adjustment target determination unit, 301 ... Type setting reception area, 302 ... Detailed setting reception area

Claims (5)

Type acquisition means for acquiring type information indicating the type of display device for displaying an image;
A display device setting device comprising: adjustment target determining means for determining whether or not to adjust white brightness and white color temperature, which are adjustment targets of the display device, based on the type information. One of the type information is a liquid crystal monitor for PC, and when the display device for displaying an image is a liquid crystal monitor for PC, the adjustment target determining means can select either white luminance or white color temperature. 2. The display device setting device according to claim 1, wherein it is determined that no adjustment is made . One of the types of information is a portable information terminal, and when the display device for displaying an image is for a portable information terminal, the adjustment target determining unit is configured to display white brightness and white color temperature. among the setting device for a display device according to claim 1, wherein the determining and adjusting only a luminance of white. Obtaining type information representing the type of display device that displays the image;
Determining whether or not to adjust white luminance and white color temperature, which are adjustment targets of the display device, based on the type information, respectively . On the computer,
A function of acquiring type information indicating the type of display device that displays an image;
A program that realizes a function for determining whether or not to adjust white luminance and white color temperature, which are adjustment targets of the display device, based on the type information.

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