CN107799090B - Method for simulating display characteristics of display and display - Google Patents
Method for simulating display characteristics of display and display Download PDFInfo
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- CN107799090B CN107799090B CN201710764865.9A CN201710764865A CN107799090B CN 107799090 B CN107799090 B CN 107799090B CN 201710764865 A CN201710764865 A CN 201710764865A CN 107799090 B CN107799090 B CN 107799090B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003086 colorant Substances 0.000 claims description 16
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000012937 correction Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000012795 verification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Theoretical Computer Science (AREA)
- Processing Of Color Television Signals (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention provides a method for simulating display characteristics of a display and the display. Wherein, the coordinates of the three vertexes of the color gamut of the first display, the gamma value of the first display and the data of the color temperature when the first display displays the specific color picture are stored in the memory. Then, according to the data stored in the memory, the display characteristics of the display area of the second display are adjusted to be consistent with the display characteristics of the first display. Therefore, when the second display displays multiple windows, at least one of the windows is utilized to simulate the display characteristics of the first display, so that a user can simultaneously view visual effects possibly presented by various display devices on the second display.
Description
Technical Field
The present invention relates to a method for simulating display characteristics of a display and a display, and more particularly, to a method for simulating display characteristics of a color display and a display using the same.
Background
Displays are one of the most important information transfer media for modern people, and color displays employ color models to describe the colors seen and used in digital (digital) images. The color model may describe the colors seen and used in the digital image. Each color model (e.g., RGB, CMYK, or HSB, etc.) is a method of describing and classifying colors. Color space (color space) is another type of color model, but has a specific gamut of colors (color gamut). Various devices in the image workflow (e.g., displays, scanners, printers, and digital cameras) operate in different color spaces and have different color gamuts. Some colors that are within the gamut of the display will not be within the gamut of the inkjet printer; and vice versa.
In the prior art, to ensure that the color gamut of the display meets certain specifications (e.g., color gamut of the display meets certain specifications)RGB gamut, sRGB gamut), the display typically needs to be color corrected to ensure that it displaysThe accuracy of the color of the image. Referring to fig. 1, fig. 1 is a schematic diagram illustrating a color correction performed on a display 10 according to the prior art. When performing the color correction of the display 10, the optical characteristics of the display 10 are measured by the measurement and correction system 20, and then the color correction is performed on the display 10 according to the measured optical characteristics of the display 10, so that the display 10 after the color correction can conform to the specific color specification. However, such a color calibration method mostly only enables the display 10 to meet a specific color specification, but does not enable the user to see the color representation of the image on other devices (such as a mobile phone screen or other display devices) on the display 10, which is inconvenient for professionals with special requirements on color.
Disclosure of Invention
The invention provides a method for simulating display characteristics of a display and a display using the method, wherein the desired optical characteristics are simulated on another display by means of the color gamut, the color temperature and the Gamma value (Gamma) data of the display to be simulated.
An embodiment of the invention provides a method for simulating display characteristics of a display. The method includes storing data of coordinates of three vertices of a color gamut of the first display, data of gamma values, and data of color temperatures when displaying a specific color picture in a memory. The method further includes reading the data of the coordinates of the three vertices of the color gamut of the first display, the gamma value data and the color temperature data stored in the memory. The method also includes adjusting the coordinates of the three vertices of the color gamut displayed in the first display area of the second display to match the coordinates of the three vertices of the color gamut of the first display according to the read data of the coordinates of the three vertices of the first display. The method further includes adjusting the gamma value of the first display area of the second display to be equal to the gamma value of the first display according to the read gamma value data of the first display. The method further comprises adjusting the color temperature of the first display area of the second display to be equal to the color temperature of the first display when the specific color picture is displayed on the first display area of the second display according to the read color temperature data of the first display.
Another embodiment of the present invention provides a display capable of simulating the display characteristics of a target display. The display includes a memory, a display panel and a control circuit. The memory is used to store the coordinate data of the three vertexes of the color domain of the target display, the gamma value data and the color temperature data when displaying the specific color picture. The display panel has a plurality of pixels for displaying color images. The control circuit is coupled to the memory and the display panel for controlling the operation of the memory and the display panel. Wherein the control circuit reads the data of the coordinates of the three vertexes of the color gamut of the target display, the gamma value of the target display and the color temperature data when the target display displays the specific color picture, which are stored in the memory. The control circuit adjusts the coordinates of the three vertices of the color gamut presented by a first display area of the display panel to match the coordinates of the three vertices of the color gamut of the target display according to the data of the coordinates of the three vertices of the target display read from the memory. The control circuit adjusts the gamma value of the first display area of the display panel to be equal to the gamma value of the target display according to the gamma value data of the target display read from the memory. The control circuit adjusts the color temperature of the first display area of the display panel to be equal to the color temperature of the target display when the first display area displays the specific color picture according to the data of the color temperature when the target display read from the memory displays the specific color.
Drawings
FIG. 1 is a diagram illustrating a display 10 with color correction according to the prior art.
FIG. 2 is a diagram illustrating a display 120 simulating the display characteristics of the display 110 according to an embodiment of the invention.
FIG. 3 illustrates the color gamut 210 of the display 110 and the color gamut 220 of the display 120 of FIG. 2.
FIG. 4 is a functional block diagram of a display with a color corrector function according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating simulation of display characteristics of the display 110 in the display area 121 of the display 120 according to an embodiment of the invention.
FIG. 6 is a flowchart illustrating simulating display characteristics of a display according to an embodiment of the invention.
Description of the symbols:
10 display
20. 130 measurement and calibration system
110. 120 display
112. 121, 122 display area
124 display panel
125 pixels
140 memory
142. 144, 146 data
150 control circuit
160 color analyzer
200 line
210. 220 color gamut
S510 to S540 flow steps
A1, A2, A3, B1, B2 and B3 vertexes
S1 and S2 picture signals
W1 and W2 points
x x chroma value
y y chromatic values.
Detailed Description
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a display 120 simulating the display characteristics of the display 110 according to an embodiment of the invention. Before the display 120 simulates the display characteristics of the display 110, the data of the coordinates of the three vertices of the color gamut of the display 110, the data of the color temperature (color temperature) when the display 110 displays a specific color picture, and the data of the Gamma value (Gamma) of the display 110 are obtained. Then, the display 120 simulates the display characteristics of the display 110 according to the coordinate, color temperature and gamma value data of the three vertices of the color gamut of the display 110, so that the color representation of the color image viewed by the user on the display 120 is consistent with the color representation of the color image viewed on the display 110. The specific color picture may be, but is not limited to, a white picture, a gray picture …, and the like. Moreover, the Gamma values of the displays 110 and 120 respectively affect the Gamma curves (Gamma curves) of the displays 110 and 120, and different Gamma values correspond to different Gamma curves. In addition, in an embodiment of the invention, the displays 110 and 120 may be Liquid Crystal Displays (LCDs), but the simulated Display 110 is not limited to a Display, and may be a mobile phone screen, a camera screen …, and the like.
The data of the coordinates, color temperature and gamma values of the three vertices of the color gamut of the display 110 can be obtained by measuring the display 110 by the measurement and correction system 130 and then stored in the memory (storage). When the display 120 is used to simulate the display characteristics of the display 110, the data of the coordinates, color temperature and gamma value of the three vertices of the color gamut of the display 110 are read from the memory, and the display characteristics of the display 110 are simulated on the display 120 according to the read data. The memory may be, but is not limited to, a non-volatile memory (e.g., flash memory, read only memory) of the monitor 120, a hard disk (e.g., magnetic disk, solid state disk) of a personal computer to which the monitor 120 is connected, a memory of the measurement and calibration system 130, or a personal computer to which the measurement and calibration system 130 is connected. Furthermore, in an embodiment of the present invention, the measuring and calibrating system 130 can be an optical measuring instrument commercially available from the market, such as KonicaDisplay Color Analyzer (Display Color Analyzer), Chroma, manufactured under model number CA-310A7123 model display color analyzer,A color corrector …, etc. with model i1Display, to obtain the coordinate, color temperature and gamma value data of the three vertexes of the color gamut of the Display 110 required for the Display simulation. In addition, in an embodiment of the present invention, the measurement and calibration system 130 may comprise a commercially available productOf screen color correctors, e.g. XThe color corrector produced by the model i1Display,The Spyder series color corrector …, etc. are produced to adjust the display characteristics of the display 120 according to the coordinate of the three vertices of the color gamut of the display 110, the color temperature and the gamma value data, so as to simulate the display characteristics of the display 110 on the display 120.
In order to make the features of the present invention more clear, an xy chromaticity diagram (xy chromaticity Diagram) will be described below. Referring to fig. 3, fig. 3 shows a color gamut 210 of the display 110 and a color gamut 220 of the display 120 in fig. 2. Wherein the horizontal axis of fig. 3 represents the x chromaticity value (chromaticity value), the vertical axis of fig. 3 represents the y chromaticity value, and the region shaped like an inverted U and encircled by the line 200 represents the range of colors visible to the naked human eye. In fig. 3, the color gamut 210 of the display 110 is a region surrounded by three vertices a1, a2, and A3, and the color gamut 220 of the display 120 is a region surrounded by three vertices B1, B2, and B3. A point W1 in color gamut 210 represents the x and y chromaticity values corresponding to the display 110 displaying a white picture, and a point W2 in color gamut 220 represents the x and y chromaticity values corresponding to the display 120 displaying a white picture. In an embodiment of the invention, the specific color is a white image, and when the display characteristics of the display 120 are simulated to be consistent with the display 110 according to the gamma data of the display 110, the coordinates of the three vertices a1, a2, and A3 of the color gamut 210, and the color temperature data of the specific color image, the three vertices B1, B2, and B3 of the color gamut 220 and the point W2 of the simulated display 120 respectively approach the three vertices a1, a2, and A3 of the color gamut 210 and the point W1 of the display 110, and even can be overlapped with the three vertices a1, a2, A3, and the point W1 of the color gamut 210 of the display 110.
In addition, in an embodiment of the present invention, the display 120 itself has the function of a color corrector, and can directly perform the function of a color correctorThe display characteristics of the display 110 are adjusted to be consistent with the display 110 according to the coordinate, color temperature and gamma data of the three vertexes A1, A2 and A3 of the color gamut of the display 110. In this embodiment, before the display characteristics of the display 110 are simulated by the display 120, the coordinate, color temperature and gamma values of the three vertices a1, a2 and A3 of the color gamut of the display 110 may be stored in the memory (e.g., flash memory, read only memory) of the display 120 in advance, and when the display 110 is simulated on the display 120, the display 120 itself may adjust the display characteristics to be consistent with the display characteristics of the display 110 directly according to the stored coordinate, color temperature and gamma values of the three vertices a1, a2 and A3 of the color gamut of the display 110 without the measurement and correction system 130. In one embodiment of the present invention, the display 120 can store screens of various products (e.g., a computer screen)The iPhone and iPAD screens,Camera screen …, etc.) so that the user can select a set of screen data to be simulated from the coordinate, color temperature and gamma value data of the three vertices of the color gamut, and simulate the display characteristics of the product with the display 120. In this way, the user can switch between the display characteristics of the screens of the various products to be simulated through the single display 120, so as to know the color representation of the screens of the color images on different product types.
Referring to fig. 4, fig. 4 is a functional block diagram of a display 120 with a color corrector function according to an embodiment of the present invention. The display 120 includes a memory 140, a display panel 124, and a control circuit 150. The control circuit 150 may be used to perform the methods of embodiments of the present invention. The memory 140 stores data 142 of coordinates of three vertices of a color gamut of a target display (e.g., the display 110 of FIG. 2), data 144 of a gamma value of the target display, and data 146 of a color temperature of the target display when displaying a specific color picture. The display panel 124 has a plurality of pixels 125 for displaying color images on the display area 121 in fig. 2. The control circuit 150 is coupled to the memory 140 and the display panel 124 for controlling operations of the memory 140 and the display panel 124. The control circuit 150 adjusts the coordinates of the three vertices of the color gamut displayed in a display area (e.g., the display area 121 in FIG. 2) of the display panel 124 to match the coordinates of the three vertices of the color gamut of the target display (e.g., the display 110 in FIG. 2) according to the data 142 of the coordinates of the three vertices of the target display read from the memory 140. Furthermore, the control circuit 150 adjusts the gamma value of the display area (e.g. the display area 121 in FIG. 2) of the display panel 124 to be equal to the gamma value of the target display according to the gamma value data 144 of the target display read from the memory 140. In addition, the control circuit 150 adjusts the color temperature of the display area of the display panel 124 when displaying the specific color picture to be equal to the color temperature of the target display according to the data 146 of the color temperature of the target display read from the memory 140.
In an embodiment of the invention, the display 120 may include a color analyzer 160. The color analyzer 160 is coupled to the control circuit 150 for measuring a target display (e.g., the display 110 of FIG. 2) to obtain data 142 of coordinates of three vertices of a color gamut of the target display, data 144 of a gamma value of the target display, and data 146 of a color temperature of the target display. The control circuit 150 stores the data 142 of the coordinates of the three vertices of the color gamut of the target display, the data 144 of the gamma value of the target display and the data 146 of the color temperature of the target display measured by the color analyzer 160 into the memory 140. In addition, the color analyzer 160 may employ commercially available optical measuring instruments, such as KonicaDisplay Color Analyzer (Display Color Analyzer), Chroma, manufactured under model number CA-310A7123 model display color analyzer,A color corrector … produced as model i1Display, and the like.
In an embodiment of the invention, in order to make the display 120 more accurately simulate the display characteristics of the display 110, the simulation of the display characteristics is performed according to the data of the coordinates, the color temperature and the gamma value of the three vertexes a1, a2 and A3 of the color gamut of the display 110, and the simulation of the display characteristics is performed according to the coordinates of a plurality of standard colors other than the three vertexes a1, a2 and A3 of the color gamut of the display 110. For example, the coordinates of the standard colors can correspond to 32 verification colors defined by IEC61966-4 color space, respectively. The data of the coordinates of the plurality of standard colors of the display 110 can be obtained by the measurement and correction system 130 measuring when the display 110 displays the frame corresponding to the verification color, and then stored in the memory. When the display characteristics of the display 110 are to be simulated on the display 120, the data of the coordinates of the plurality of standard colors are read from the memory as the basis for simulating the display characteristics.
In the embodiment of fig. 2, the display characteristics of the display 110 are simulated in the display area 121 of the display 120 according to the data of the coordinates, the color temperature and the gamma values of the three vertices of the color gamut represented by the display area 112 of the display 110, so that the color representation of the color image seen by the user in the display area 121 of the display 120 is consistent with the color representation of the color image represented by the display area 112 of the display 110. The display area 112 shown in fig. 2 is the entire display area of the display 110, and the display area 121 shown in fig. 2 is the entire display area of the display 120. However, in an embodiment of the invention, the display area 121 of the display 120 for simulating the display characteristics of the display 110 may be only a part of the whole display area of the display 120. Referring to fig. 5, fig. 5 is a schematic diagram illustrating simulation of display characteristics of the display 110 in the display area 121 of the display 120 according to an embodiment of the invention, wherein the display area 121 is a portion of the entire display area of the display 120, and the display area outside the display area 121 is represented by the display area 122. In this embodiment, the display characteristics of the display 110 are only simulated in the display area 121, and the display area 122 outside the display area 121 maintains the display characteristics of the display 120 before the simulation of the display characteristics of the display 110 is performed. Therefore, when the display area 121 is driven for displaying a picture, the color gamut of the display area 121 is different from the color gamut of the display area 122 (i.e., the color gamut of the display 110), wherein the coordinates of the three vertices of the color gamut of the display area 121 are not identical to the coordinates of the three vertices of the color gamut of the display area 122 (i.e., at least one of the coordinates of the three vertices of the color gamut of the display 110), the color temperature of the display area 121 is different from the color temperature of the display area 122 (i.e., the color temperature of the display 110), and the gamma value of the display area 121 is different from the gamma value of the display area 122 (i.e., the gamma value of the display 110). In addition, similar to the simulation method shown in fig. 2, when the display characteristics of the display 110 are to be simulated in the display area 121, the display characteristics of the display area 121 are simulated to be consistent with the display characteristics of the display area 112 of the display 110 according to the coordinate of the three vertices of the color gamut of the display 110, the color representation of the color image viewed by the user in the display area 121 is consistent with the color representation of the color image viewed by the display 110.
In an embodiment of the present invention, in order to make the display characteristics simulated by the display 120 meet the requirements of most users, the data of the coordinates, color temperature and gamma value of the three vertexes of the color gamut of the display 110 are obtained by measuring a plurality of displays of the same product type as the display 110, considering that the screen characteristics of a plurality of devices of the same product type produced by the same company are slightly different due to the drift of the screen process (technology) or other reasons. Specifically, a plurality of displays of the same model as the display 110 are measured in advance to obtain data of the mean and standard deviation of the coordinates of the three vertices of the color gamut, data of the mean and standard deviation of the gamma value, and data of the mean and standard deviation of the color temperature of the displays. Then, the display 120 simulates the display characteristics of the display according to the measured average and standard deviation of the coordinates of the vertices of the color gamut of the display, the measured average and standard deviation of the gamma value, and the measured average and standard deviation of the color temperature. In an embodiment of the present invention, the coordinates of each vertex of the color gamut of the display recorded by the data 142 in the memory 140 fall within the range of plus or minus three standard deviations from the average value of the measured coordinates of each corresponding vertex of the color gamut of the plurality of displays, the gamma value of the display recorded by the data 144 in the memory 140 falls within the range of plus or minus three standard deviations from the average value of the measured gamma values of the plurality of displays, and the color temperature of the display recorded by the data 146 in the memory 140 falls within the range of plus or minus three standard deviations from the average value of the measured color temperatures of the plurality of displays. In detail, assuming that the measured average value and standard deviation of the coordinates of the first vertex of the three vertices of the color gamut of the plurality of displays are μ 1 and σ 1, respectively, the measured average value and standard deviation of the coordinates of the second vertex of the three vertices of the color gamut of the plurality of displays are μ 2 and σ 2, respectively, the measured average value and standard deviation of the coordinates of the third vertex of the color gamut of the plurality of displays are μ 3 and σ 3, respectively, the measured average value and standard deviation of the gamma values of the displays are μ 4 and σ 4, respectively, and the measured average value and standard deviation of the color temperatures of the displays are μ 5 and σ 5, respectively, the coordinates of the first vertex of the three vertices of the color gamut of the displays recorded by the data 142 in the memory 140 fall within the range of μ 1 ± 3 σ 1, and the coordinates of the second vertex of the three vertices of the color gamut of the displays recorded by the data 142 in the memory 140 fall within the range of μ 2 In the range of + -3 σ 2, the coordinate of the third vertex of the three vertices of the color gamut of the display recorded by the data 142 in the memory 140 falls within the range of μ 3 + -3 σ 3, the gamma value of the display recorded by the data 144 in the memory 140 falls within the range of μ 4 + -3 σ 4, and the color temperature of the display recorded by the data 146 in the memory 140 falls within the range of μ 5 + -3 σ 5. Similarly, the reference data of the coordinates of the three vertices of the color gamut, the reference data of the gamma value and the reference data of the color temperature of the displays can be stored in a memory in advance for being read when screen display characteristic simulation is performed subsequently and used as a basis when simulation is performed.
In an embodiment of the invention, the size (i.e., the length and the width) of the display area 121 of the display 120 in fig. 5 can be adjusted according to the size (i.e., the length and the width) of the screen of the product to be simulated, so that the size of the display area 121 is consistent with the size of the screen of the product to be simulated. For example, when simulating in the display area 121The size of the display area 121 can be adjusted to 4.7 inches (diagonal) for the screen display characteristic of iPhone 6 of (1); when the display area 121 is to be simulatedThe size of the display area 121 can be adjusted to 5.5 inches (diagonal) for the screen display characteristics of iPhone 6 Plus. In an embodiment of the invention, the display area 121 may be further scaled (Scale) to meet different simulation requirements, and the resolution or size of the display area 121 may be lower than that of the display device to be simulated. In addition, in another embodiment of the present invention, the display 120 itself may also have a function of a color corrector, and the display characteristics of the display area 121 may be adjusted to be consistent with the display 110 directly according to the coordinate, color temperature and gamma value data of the three vertices of the color gamut of the display 110, and the display 120 may store the coordinate, color temperature and gamma value data of the three vertices of the color gamut of the screens of various products, so that the user may select a set of data of the screen to be simulated, and perform simulation of the display characteristics of the product in the display area 121 according to the selected set of data. In this way, the user can switch between the display characteristics of the screens of the various products to be simulated through the display area 121 of the display 120, so as to know the color representation of the screens of the color images in different product categories.
In an embodiment of the present invention, the method for simulating the display characteristics of the display according to the present invention can be applied to a preview window or a sub-window of an application program, and the display area of the preview window or the sub-window of the application program on the display 120 is the display area 121 for simulating the display characteristics. In other words, the application program can present the preview window or the sub-window in the display area 121, and the display area 121 can switch between the display characteristics of the screens of various products, so that the application program is very convenient for the user when the user has a need to view the color representation of the same image on different screen devices. In addition, in another embodiment of the present invention, when the display 120 displays multiple windows, at least one of the windows can be used to simulate the display characteristics of the display 110, so as to provide the user with the ability to view the visual effects that may be presented by various display devices on the display 120.
In one embodiment of the present invention, the display 120 shown in FIG. 5 can receive the different Picture signals S1 and S2, and present the pictures of the Picture signals S1 and S2 in a Picture By Picture (PBP) or Picture In Picture (PIP) manner. For example, the picture of the picture signal S1 can be displayed in the display area 121 and simulate the display characteristics of the display 110, and the picture of the picture signal S2 can be displayed in the display area 122 and displayed in the color gamut originally used by the display 120. The Video ports of the display 120 for receiving the Video signals S1 and S2 may be, but not limited to, Video Graphics Array (VGA) ports, Digital Video Interface (DVI) ports, High Definition Multimedia Interface (HDMI) ports …, and other Video ports.
Referring to fig. 6, fig. 6 is a flowchart illustrating simulating display characteristics of a display according to an embodiment of the invention. In this embodiment, the method for simulating the display characteristics of the display comprises the following steps:
step S510: storing the coordinates of the three vertices of the color gamut of the first display, the gamma value of the first display, and the color temperature data of the first display when displaying the specific color picture in a memory (for example, storing the coordinates of the three vertices A1, A2, and A3 of the color gamut 210 of the display 110, the gamma value of the display 110, and the color temperature data of the display 110 when displaying the specific color picture in the memory of the display 120);
step S520: reading the coordinate data of the three vertices of the color gamut of the first display stored in the memory, and adjusting the coordinates of the three vertices of the color gamut represented by the first display region of the second display to match the coordinates of the three vertices of the color gamut of the first display according to the read coordinate data of the three vertices of the first display (for example, reading the coordinate data of the three vertices a1, a2, and A3 of the color gamut 210 of the display 110 stored in the memory of the display 120, and adjusting the coordinates of the three vertices B1, B2, and B3 of the color gamut 220 represented by the display region 121 of the display 120 to match the coordinates of the three vertices a1, a2, and A3 according to the read coordinate data of the three vertices a1, a2, and A3);
step S530: reading the gamma value data of the first display stored in the memory, and adjusting the gamma value of the first display area of the second display to be equal to the gamma value of the first display according to the read gamma value data of the first display (for example, reading the gamma value data of the display 110 stored in the memory of the display 120, and adjusting the gamma value of the display area 121 of the display 120 to be equal to the gamma value of the display 110 according to the read gamma value data of the display 110); and
step S540: the data of the color temperature of the first display stored in the memory is read, and the color temperature of the first display region of the second display when displaying the specific color picture is adjusted to be equal to the color temperature of the first display according to the read data of the color temperature of the first display (for example, the data of the color temperature of the display 110 stored in the memory of the display 120 is read, and the color temperature of the display region 121 of the display 120 when displaying the specific color picture is adjusted to be equal to the color temperature of the display 110 according to the read data of the color temperature of the first display 110).
In the embodiment shown in fig. 6, step S530 and step S540 are executed sequentially. However, the invention is not limited thereto. For example, in an embodiment of the present invention, after the step S520 is completed, the steps S530 and S540 are executed in parallel. In another embodiment of the present invention, after the step S520 is completed, the step S540 is executed first and then the step S530 is executed. In addition, the operations of reading the coordinate data of the three vertices of the color gamut of the first display stored in the memory, reading the gamma value of the first display stored in the memory, and reading the color temperature data of the first display stored in the memory in steps S520, S530, and S540 may be integrated into one step of reading the memory data or a plurality of (e.g., three) steps of reading the memory data, independently from steps S520, S530, and S540. The operation of reading the coordinate data of the three vertices of the color gamut of the first display stored in the memory independent of step S520 is performed before step S520, the operation of reading the gamma value data of the first display stored in the memory independent of step S530 is performed before step S530, and the operation of reading the color temperature data of the first display stored in the memory independent of step S540 is performed before step S540. In addition, the above steps S510 to S540 can be executed by the control circuit 150 in fig. 4, wherein the control circuit 150 drives the plurality of pixels 125 of the display panel 124 according to the read data 142 of the coordinates of the three vertices, the read data 144 of the gamma value, and the read data 146 of the color temperature of the display 110, so that the color representation of the color image seen by the user in the display area 121 of the display 120 is consistent with the color representation of the color image displayed in the display area 112 of the display 110.
In summary, by the method for simulating the display characteristics of the display provided by the embodiment of the invention, the user can see the color representations presented by different displays on a single display. In addition, because the display characteristics of different display devices can be simulated on a single display, a user can know the color expression of the screen of the same color image on different product types by only one display. In addition, because the user does not need to have a plurality of electronic products with the function of displaying the color drawings at the same time, the display characteristics of the color screens of the electronic products can be simulated on the single display, so the cost for purchasing or renting the electronic products can be saved for the user.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (9)
1. A method for simulating display characteristics of a display, the method comprising:
storing data of coordinates of three vertexes of a color gamut of a first display, data of a gamma value of the first display and data of a color temperature when the first display displays a specific color picture in a memory;
reading the coordinate data of the three vertexes of the color gamut of the first display stored in the memory, reading the color temperature data of the first display stored in the memory, and reading the gamma value data of the first display stored in the memory;
adjusting the coordinates of the three vertexes of the color gamut presented by a first display area of a second display to be consistent with the coordinates of the three vertexes of the color gamut of the first display according to the read data of the coordinates of the three vertexes of the first display;
adjusting the gamma value of the first display area of the second display to be equal to the gamma value of the first display according to the read gamma value data of the first display;
adjusting the color temperature of the first display area of the second display to be equal to the color temperature of the first display when the first display area displays the specific color picture according to the read information of the color temperature of the first display;
receiving a first picture signal and a second picture signal; and
and driving the first display area and a second display area of the second display, which is different from the first display area, so that the second display area displays in a color gamut different from the color gamut of the first display, the picture of the first picture signal is displayed in the first display area, and the picture of the second picture signal is displayed in the second display area.
2. The method of claim 1, further comprising:
measuring the first display to obtain the coordinates of the three vertexes of the color gamut of the first display, the gamma value of the first display and the color temperature data of the first display.
3. The method of claim 1, further comprising:
measuring a plurality of displays to obtain the average value and the standard deviation of the coordinates of each vertex of the color gamut of the displays, the average value and the standard deviation of the gamma values of the displays and the average value and the standard deviation of the color temperature of the displays;
wherein the coordinates of each vertex of the color gamut of the first display recorded by the memory fall within a range of plus or minus three standard deviations from the average value of the measured coordinates of each corresponding vertex of the color gamut of the displays, the gamma value of the first display recorded by the memory falls within a range of plus or minus three standard deviations from the average value of the measured gamma values of the displays, and the color temperature of the first display recorded by the memory falls within a range of plus or minus three standard deviations from the average value of the measured color temperatures of the displays.
4. The method of claim 1, wherein the specific color frame is a white frame.
5. The method of claim 1, further comprising:
and displaying the sub-window of the application program in the first display area.
6. The method of claim 1, further comprising:
storing coordinates of a plurality of standard colors outside the three vertices of the color gamut of the first display in the memory; and
the coordinates of the standard colors stored in the memory are read, and the coordinates of the standard colors of the color gamut presented by the first display area of a second display are adjusted to be consistent with the coordinates of the standard colors according to the read coordinates of the standard colors.
7. The method of claim 1, further comprising:
according to the size of a display area of the first display, the size of the first display area of the second display is adjusted to be consistent with the size of the display area of the first display.
8. A display for simulating display characteristics of a target display, the display comprising:
a memory for storing data of coordinates of three vertexes of a color gamut of the target display, data of a gamma value of the target display, and data of a color temperature when the target display displays a specific color picture;
a display panel having a plurality of pixels for displaying a color image; and
a control circuit, coupled to the memory and the display panel, for controlling the operations of the memory and the display panel;
wherein the control circuit reads the data of the coordinates of the three vertexes of the color gamut of the target display, the gamma value of the target display and the color temperature of the target display when displaying a specific color picture, which are stored in the memory;
wherein the control circuit adjusts the coordinates of the three vertices of the color gamut presented by a first display area of the display panel to match the coordinates of the three vertices of the color gamut of the target display according to the data of the coordinates of the three vertices of the target display read from the memory;
wherein the control circuit adjusts the gamma value of the first display area of the display panel to be equal to the gamma value of the target display according to the gamma value data of the target display read from the memory;
wherein the control circuit adjusts the color temperature of the first display region of the display panel to be equal to the color temperature of the target display when the first display region displays the specific color picture according to the data of the color temperature of the target display read from the memory;
wherein the control circuit receives a first image signal and a second image signal; and
the control circuit drives the first display area and a second display area of the display panel, which is different from the first display area, so that the second display area displays in a color gamut different from the color gamut of the target display, the picture of the first picture signal is displayed in the first display area, and the picture of the second picture signal is displayed in the second display area.
9. The display as claimed in claim 8, wherein the control circuit adjusts the size of the first display area of the display panel to be consistent with the size of the display area of the target display according to the size of the display area of the target display.
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| Application Number | Priority Date | Filing Date | Title |
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| TW105128300A TWI603316B (en) | 2016-09-01 | 2016-09-01 | Method and display device for simulating display characteristics of display |
| TW105128300 | 2016-09-01 |
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| TWI603316B (en) | 2017-10-21 |
| CN107799090A (en) | 2018-03-13 |
| TW201810240A (en) | 2018-03-16 |
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