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CN110827750A - Display panel and method for adjusting pixel aperture ratio - Google Patents

Display panel and method for adjusting pixel aperture ratio Download PDF

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Publication number
CN110827750A
CN110827750A CN201810906854.4A CN201810906854A CN110827750A CN 110827750 A CN110827750 A CN 110827750A CN 201810906854 A CN201810906854 A CN 201810906854A CN 110827750 A CN110827750 A CN 110827750A
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pixel
sub
chromaticity coordinate
color
value
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CN110827750B (en
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李艳虎
何志江
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EverDisplay Optronics Shanghai Co Ltd
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EverDisplay Optronics Shanghai Co Ltd
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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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature

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  • Physics & Mathematics (AREA)
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Abstract

The invention provides a display panel and a method for adjusting the aperture opening ratio of pixels. The pixel aperture ratio adjusting method comprises the following steps: according to T0At the moment, calculating a second chromaticity coordinate when the white light is calculated by the first chromaticity coordinate and the first brightness value of the sub-pixels with different colors of the display panel; simulation TFAt the moment, the display panel displays a third chromaticity coordinate and a third brightness value T of the sub-pixels with different colorsF＝T0+ F, calculating T according to color matching principleFA fourth color coordinate of the time-white light; calculating the white light chromatic aberration of the second chromaticity coordinate and the fourth chromaticity coordinate; if the white light color difference is larger than the preset threshold value, the aperture opening ratio of the corresponding color is adjusted, and then the T is simulated againFAnd the color coordinates and the brightness values of the sub-pixels with different colors at the moment are calculated until a fourth chromaticity coordinate with the white light color difference smaller than or equal to a preset threshold value is obtained. The method of the invention can improve the color cast generated in the use process of the display panel.

Description

Display panel and method for adjusting pixel aperture ratio
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a method for adjusting the aperture opening ratio of pixels.
Background
In recent years, the OLED (Organic Light-Emitting Diode) technology has been developed rapidly, and has become a promising technology for replacing the LCD (Liquid Crystal Display) most probably.
However, the organic light emitting diode has a problem of short lifetime. In the use process of the OLED screen, due to different attenuation trends of BGRs (blue, green, and red subpixels), the OLED screen has a color cast phenomenon after being used for a period of time, which greatly affects the visual perception of customers.
For example, if the blue sub-pixel decays too fast, the screen may appear yellowish after a period of time; if the attenuation of the green pixels is too fast, the screen is in a purple state after the green pixels are used for a period of time; if the red pixels decay too quickly, the screen will appear to be greenish after a period of use.
Therefore, the color cast problem caused by different attenuation trends of the sub-pixels with different colors exists in the prior art.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a display panel and a method for adjusting an aperture ratio of a pixel, which can improve the color shift problem caused by different attenuation trends of sub-pixels with different colors.
According to an aspect of the present invention, there is provided a method for adjusting a pixel aperture ratio, including:
according to T0At the moment, calculating a second chromaticity coordinate when the color is white according to the first chromaticity coordinate and the first brightness value of the different color sub-pixels of the display panel;
simulation TFAt the moment, the display panel displays a third chromaticity coordinate and a third brightness value of the sub-pixels with different colors, and calculates a fourth chromaticity coordinate when the sub-pixels are white, wherein T isF＝T0+ F, wherein F is greater than 1 hour;
calculating the white light color difference between the second chromaticity coordinate and the fourth chromaticity coordinate;
if the white light chromatic aberration is larger than a preset threshold value, the aperture opening ratio of the color sub-pixel is adjusted and set, and then the T is simulated againFAnd the third chromaticity coordinate and the third brightness value are obtained until a fourth chromaticity coordinate with the white light color difference smaller than or equal to a preset threshold value is obtained.
Alternatively,
the step of calculating the second chromaticity coordinate at the time of white light includes:
generating a conversion matrix according to the first chromaticity coordinates of the sub-pixels with different colors;
generating a first brightness matrix according to the first brightness values of the sub-pixels with different colors;
multiplying the first brightness matrix by the conversion matrix to obtain a first tri-stimulus value matrix;
obtaining a first tristimulus value according to the first tristimulus value matrix;
calculating the second chromaticity coordinate according to the first third color stimulation value;
the step of calculating the fourth chromaticity coordinate at the time of white light includes:
generating a second brightness matrix according to a third brightness value of the sub-pixel with different colors;
multiplying the third luminance matrix by the conversion matrix to obtain a second tri-stimulus value matrix;
obtaining a second tristimulus value according to the second tristimulus value matrix;
and calculating the fourth chromaticity coordinate according to the second third color stimulation value.
Optionally, the different color sub-pixels comprise a red sub-pixel, a green sub-pixel and a blue sub-pixel.
Optionally, the transformation matrix T is calculated according to the following formula:
wherein, (Rx, Ry, Rz) is a first chromaticity coordinate of the red sub-pixel, (Gx, Gy, Gz) is a first chromaticity coordinate of the green sub-pixel, and (Bx, By, Bz) is a first chromaticity coordinate of the blue sub-pixel, wherein the first chromaticity coordinate and the third chromaticity coordinate of each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel are equal.
The first luminance matrix L0 is
Figure BDA0001759936920000031
Wherein R is0Is a first luminance value, G, of the red sub-pixel0Is a first luminance value of the green sub-pixel, B0A first luminance value of a blue sub-pixel;
the second luminance matrix LF is
Figure BDA0001759936920000032
Wherein R isFA third luminance value, G, of the red sub-pixelFIs the third brightness value of the green sub-pixel, BFA third luminance value for the blue sub-pixel;
the first tristimulus value matrix is calculated according to the following formula:
Figure BDA0001759936920000033
wherein, Xw0，Yw0，Zw0Respectively the first third color stimulus value;
the second tristimulus value matrix is calculated according to the following formula:
wherein, XwF，YwF，ZwFRespectively, the second third color stimulus values.
Optionally, the second chromaticity coordinate (u0 ', v 0') is calculated according to the following formula:
optionally, the fourth chromaticity coordinate (uF ', vF') is calculated according to the following formula:
Figure BDA0001759936920000037
Figure BDA0001759936920000038
optionally, the white light color difference Δ u 'v' is calculated according to the following formula:
Figure BDA0001759936920000041
optionally, the selected color pixel is a blue sub-pixel.
Optionally, the predetermined threshold is 0 to 0.024.
Optionally, if the white light color difference is greater than a predetermined threshold, the increment of the aperture ratio of the selected color sub-pixel on the display panel increases in a forward direction with the white light color difference.
According to still another aspect of the present invention, there is also provided a display panel including:
and the pixel array comprises sub-pixels with different colors, and the aperture ratios of the sub-pixels with different colors are adjusted according to the method.
Compared with the prior art, the invention determines the white light color difference of the display panel from the initial time to a period of time through the chromaticity coordinates and the brightness of the display panel at the initial time and after a period of time through matrix conversion and calculation, the white light color difference can represent the color cast degree to a certain extent, when the white light color difference is overlarge, the aperture opening ratio of a color pixel with the fastest attenuation in the display panel is adjusted, and the adjusted aperture opening ratio is applied to each display panel, so that the color cast problem caused by different color sub-pixel attenuation trends is improved.
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The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a schematic diagram of a pixel array of a display panel of an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a method for adjusting an aperture ratio of a pixel according to an embodiment of the invention.
FIG. 3 shows T according to a first embodiment of the invention0Luminance values and chromaticity coordinates of the three-color pixels at the time.
FIG. 4 shows different aperture ratios of the blue sub-pixel at T according to the first embodiment of the present inventionFThe brightness values of the three-color pixels and the color difference of the white light at the moment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the invention.
The drawings of the present invention are for illustrating relative positional relationships, and the sizes of elements in the drawings do not represent proportional relationships of actual sizes.
In order to solve the problem of color shift caused by different attenuation trends of sub-pixels with different colors in the prior art, the invention provides a display panel and a method for adjusting the aperture ratio of a pixel. The following describes the display panel and the adjustment method of the pixel aperture ratio provided by the present invention with reference to fig. 1 to 4, respectively.
Fig. 1 shows a schematic diagram of a pixel array of a display panel of an embodiment of the present invention. The display panel provided by the invention comprises a substrate and a pixel array formed on the substrate, wherein the pixel array comprises a plurality of pixels with different colors. In this embodiment, the pixel array includes a red pixel R, a green pixel G, and a blue pixel B. The invention is not limited thereto, and pixels with more than three colors are also within the scope of the invention. Fig. 1 is a diagram schematically showing an arrangement of pixels in a pixel array. Different variations of the pixel arrangement are within the scope of the invention. The invention adjusts the aperture ratio of the sub-pixel with the highest brightness decay speed in the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B according to the calculated white light chromatic aberration so as to slow down the brightness decay speed of the color sub-pixel. The aperture ratio in the present invention is the ratio of the effective light emitting area of each color sub-pixel to the area of the color sub-pixel.
Specifically, the present invention adjusts the pixel aperture ratio by the pixel aperture ratio adjustment method as shown in fig. 2. As in fig. 2, there are 4 steps shown:
step S110: according to T0At the moment, calculating a second chromaticity coordinate when the color is white according to the first chromaticity coordinate and the first brightness value of the different color sub-pixels of the display panel;
step S120: simulation TFAt the moment, the display panel displays a third chromaticity coordinate and a third brightness value of the sub-pixels with different colors, and calculates a fourth chromaticity coordinate when the sub-pixels are white, wherein T isF＝T0+ F, wherein F is greater than 1 hour;
step S130: calculating the white light color difference between the second chromaticity coordinate and the fourth chromaticity coordinate;
step S140: if the white light chromatic aberration is larger than a preset threshold value, the aperture opening ratio of the color sub-pixel is adjusted and set, and then the T is simulated againFAnd the third chromaticity coordinate is obtained until a fourth chromaticity coordinate with the white light chromatic aberration smaller than or equal to a preset threshold value is obtained.
The following describes an implementation of the above method by taking an example that the different color sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
First, in step S110: t is0At the moment, the first chromaticity coordinate (Rx, Ry, Rz) and the first luminance value of the red subpixel R of the display panelR0First chromaticity coordinates (Gx, Gy, Gz) and first luminance value G of the green sub-pixel G0First chromaticity coordinates (Bx, By, Bz) and first luminance value B of the blue sub-pixel B0。T0The time is used as the initial time.
In this embodiment, the third chromaticity coordinate is equal to the first chromaticity coordinate, and in step S120: simulation TFAt the moment, the second brightness value R of the red sub-pixel R of the display panelFSecond luminance value G of green sub-pixel GFSecond luminance value B of blue sub-pixel BF。TFThe moment of time is for example0The 100 th hour after the time point, the present invention is not limited thereto.
Then, the step S110 and the step S120 respectively calculate T according to the first chromaticity coordinate, the first luminance value, the third chromaticity coordinate and the third luminance value of the sub-pixels with different colors0The second chromaticity coordinate and the fourth chromaticity coordinate may further include the following steps when the time display panel displays white light, respectively:
and generating a conversion matrix according to the first chromaticity coordinate or the third chromaticity coordinate of the sub-pixels with different colors.
Specifically, the transformation matrix T may be calculated according to the following formula:
Figure BDA0001759936920000061
wherein, (Rx, Ry, Rz) is a first chromaticity coordinate of the red sub-pixel, (Gx, Gy, Gz) is a first chromaticity coordinate of the green sub-pixel, and (Bx, By, Bz) is a first chromaticity coordinate of the blue sub-pixel, wherein the first chromaticity coordinate and the third chromaticity coordinate of each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel are equal.
A first luminance matrix is generated from first luminance values of the different color sub-pixels.
Specifically, the first luminance matrix L0 is
Figure BDA0001759936920000071
Wherein R is0Is a first luminance value, G, of the red sub-pixel0Is a first luminance value of the green sub-pixel, B0Is the first luminance value of the blue sub-pixel.
And multiplying the first brightness matrix by the conversion matrix to obtain a first tri-stimulus value matrix.
Specifically, the first tristimulus value matrix is
Figure BDA0001759936920000072
Wherein, Xw0，Yw0，Zw0Respectively, the first three color stimulus values.
And generating a second brightness matrix according to the third brightness value of the sub-pixel with different colors.
In particular, the second luminance matrix LF is
Figure BDA0001759936920000073
Wherein R isFA third luminance value, G, of the red sub-pixelFIs the third brightness value of the green sub-pixel, BFThe third luminance value of the blue sub-pixel.
And multiplying the second brightness matrix by the conversion matrix to obtain a second tristimulus value matrix.
Specifically, the second tristimulus value matrix is
Wherein, XwF，YwF，ZwFRespectively, the second third color stimulus values.
And obtaining a first tristimulus value and a second tristimulus value according to the first tristimulus value matrix and the second tristimulus value matrix.
Then, T is calculated according to the following formula0The second chromaticity coordinate (u0 ', v 0') when the display panel at the time point displays white light:
Figure BDA0001759936920000075
Figure BDA0001759936920000081
calculating T according to the following formulaFThe fourth chromaticity coordinate (uF ', vF') when the display panel at the time point displays white light:
Figure BDA0001759936920000082
Figure BDA0001759936920000083
thereafter, T is calculated according to the following formula in the step S1300Time to TFThe color difference of white light Δ u 'v' at the time:
Figure BDA0001759936920000084
then, when it is determined in step S140 that the white light color difference is greater than the predetermined threshold, the aperture ratio of the selected color sub-pixel in the different color sub-pixels on the display panel is increased, and the difference between the fourth luminance value of the selected color sub-pixel and the first luminance value of the selected color sub-pixel in the different color sub-pixels is the largest.
Specifically, after step S140 is performed, steps S110 to S130 may be repeatedly performed until the white color difference is equal to a predetermined threshold, and the cycle is stopped.
In some embodiments of the present invention, if the white light color difference is greater than the predetermined threshold, the increase of the aperture ratio of the selected color sub-pixel on the display panel increases in a forward direction with the white light color difference. In other words, the larger the white light color difference is, the larger the increment of the aperture ratio of the selected color sub-pixel on the display panel is, thereby reducing the cycle number and increasing the adjustment efficiency.
In some embodiments of the invention, the predetermined threshold may be 0 to 0.024. The predetermined threshold may be adjusted according to color shift requirements.
In some embodiments of the present invention, the organic light emitting diode has a problem of short lifetime, especially in the blue material system, which is far inferior to the red and green lifetime due to the too wide energy band and easy oxidation. Therefore, the blue sub-pixel can be selected as the selected color sub-pixel, but the invention can not be limited thereto.
The technical effect achieved by the present invention in one embodiment of the present invention is explained below with reference to fig. 3 and 4.
FIG. 3 shows T according to a first embodiment of the invention0Luminance values and chromaticity coordinates of the three-color sub-pixels at the time. In FIG. 3, the display brightness of the display panel is 500nits, which is shown at T0At the moment, the chromaticity coordinates CIE x and CIE y of the white light are 0.3 and 0.31, respectively. The red sub-pixel is at T0The time-of-day luminance is 143nits and the chromaticity coordinates CIE x and CIE y of the red sub-pixel are 0.665 and 0.335, respectively. Green sub-pixel at T0The time-of-day luminance is 329nits, and the chromaticity coordinates CIE x and CIE y of the green sub-pixel are 0.212 and 0.730, respectively. Blue sub-pixel at T0The time-of-day luminance is 29nits and the chromaticity coordinates CIE x and CIE y of the blue sub-pixel are 0.143 and 0.039, respectively. CIE x and CIE y are, for example, chromaticity coordinates in 1931 chromaticity space.
FIG. 4 shows different aperture ratios of the blue sub-pixel at T according to the first embodiment of the present inventionFThe brightness value of the three-color sub-pixel and the white light color difference at the moment.
Without increasing the aperture ratio of the sub-pixel, at TFTime of day (at T)0The last 100 hours), the luminance of the red sub-pixel is 138nits, the luminance of the green sub-pixel is 319nits, and the luminance of the blue sub-pixel is 25 nits. At this time, the chromatic aberration of white light was calculated to be 0.00871. In the present embodiment, u 'v' in the chromaticity difference Δ u 'v' may be a chromaticity coordinate in a 1976 chromaticity space. In the present embodiment, the predetermined threshold is set to 0.003. The white light chromatic aberration 0.00871 is larger than 0.003, and the aperture ratio of the sub-pixel needs to be adjusted. In the present embodiment, the luminance of the blue sub-pixel B is attenuatedThe maximum is reduced and, therefore, the blue sub-pixel is taken as the selected color sub-pixel. The aperture ratio of the blue sub-pixel B is increased and applied to a new display panel, and the calculation and measurement are performed again after a 100-hour period of use, where the luminance of the red sub-pixel is 138nits, the luminance of the green sub-pixel is 319nits, and the luminance of the blue sub-pixel is 26.6 nits. At this time, the white color difference was calculated as 0.00382. The white-light color difference 0.00382 is still larger than 0.003, the aperture ratio of the blue sub-pixel needs to be adjusted and applied to a new display panel, and the calculation and measurement are performed again after a 100-hour period of use, where the luminance of the red sub-pixel is 138nits, the luminance of the green sub-pixel is 319nits, and the luminance of the blue sub-pixel is 27 nits. At this time, the white color difference was calculated to be 0.00262, 0.003 or less. Therefore, the attenuation speed of the blue sub-pixel is reduced, and the problem of color cast caused by different attenuation trends of the sub-pixels with different colors is solved.
Compared with the prior art, the invention determines the white light color difference of the display panel from the initial time to a period of time through the chromaticity coordinates and the brightness of the display panel at the initial time and after a period of time through matrix conversion and calculation, the white light color difference can represent the color cast degree to a certain extent, when the white light color difference is overlarge, the aperture opening ratio of the color sub-pixel with the fastest attenuation in the display panel is adjusted, and the adjusted aperture opening ratio is applied to each display panel, so that the color cast problem caused by different color sub-pixel attenuation trends is improved.
Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.

Claims (12)

1. A method for adjusting a pixel aperture ratio, comprising:
according to T0At the moment, calculating a second chromaticity coordinate when the color is white according to the first chromaticity coordinate and the first brightness value of the different color sub-pixels of the display panel;
simulation TFAt the moment, the display panel displays a third chromaticity coordinate and a third brightness value of the sub-pixels with different colors, and calculates a fourth chromaticity coordinate when the sub-pixels are white, wherein T isF＝T0+ F, wherein F is greater than 1 hour;
calculating the white light color difference between the second chromaticity coordinate and the fourth chromaticity coordinate;
if the white light chromatic aberration is larger than a preset threshold value, the aperture opening ratio of the color sub-pixel is adjusted and set, and then the T is simulated againFAnd the third chromaticity coordinate and the third brightness value are obtained until a fourth chromaticity coordinate with the white light color difference smaller than or equal to a preset threshold value is obtained.
2. The method for adjusting the pixel aperture ratio according to claim 1, wherein the step of calculating the second chromaticity coordinate at the time of white light includes:
generating a conversion matrix according to the first chromaticity coordinates of the sub-pixels with different colors;
generating a first brightness matrix according to the first brightness values of the sub-pixels with different colors;
multiplying the first brightness matrix by the conversion matrix to obtain a first tri-stimulus value matrix;
obtaining a first tristimulus value according to the first tristimulus value matrix;
calculating the second chromaticity coordinate according to the first third color stimulation value;
the step of calculating the fourth chromaticity coordinate at the time of white light includes: generating a second brightness matrix according to a third brightness value of the sub-pixel with different colors;
multiplying the third luminance matrix by the conversion matrix to obtain a second tri-stimulus value matrix;
obtaining a second tristimulus value according to the second tristimulus value matrix;
and calculating the fourth chromaticity coordinate according to the second third color stimulation value.
3. The method as claimed in claim 2, wherein the different color sub-pixels comprise a red sub-pixel, a green sub-pixel and a blue sub-pixel.
4. The method for adjusting the pixel aperture ratio according to claim 3, wherein the conversion matrix T is calculated according to the following formula:
Figure FDA0001759936910000021
wherein, (Rx, Ry, Rz) is a first chromaticity coordinate of the red sub-pixel, (Gx, Gy, Gz) is a first chromaticity coordinate of the green sub-pixel, and (Bx, By, Bz) is a first chromaticity coordinate of the blue sub-pixel, wherein the first chromaticity coordinate and the third chromaticity coordinate of each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel are equal.
5. The method for adjusting the pixel aperture ratio according to claim 4,
the first luminance matrix L0 is
Figure FDA0001759936910000022
Wherein R is0Is a first luminance value, G, of the red sub-pixel0Is a first luminance value of the green sub-pixel, B0A first luminance value of a blue sub-pixel;
the second luminance matrix LF is
Wherein R isFA third luminance value, G, of the red sub-pixelFIs the third brightness value of the green sub-pixel, BFA third luminance value for the blue sub-pixel;
the first tristimulus value matrix is calculated according to the following formula:
Figure FDA0001759936910000024
wherein, Xw0，Yw0，Zw0Respectively the first third color stimulus value;
the second tristimulus value matrix is calculated according to the following formula:
Figure FDA0001759936910000025
wherein, XwF，YwF，ZwFRespectively, the second third color stimulus values.
6. The method of adjusting pixel aperture ratio of claim 5, wherein the second chromaticity coordinate (u0 ', v 0') is calculated according to the following formula:
Figure FDA0001759936910000031
Figure FDA0001759936910000032
7. the method for adjusting the pixel aperture ratio according to claim 6, wherein the fourth chromaticity coordinate (uF ', vF') is calculated according to the following formula:
Figure FDA0001759936910000033
8. the method for adjusting the pixel aperture ratio according to claim 7, wherein the white light color difference Δ u 'v' is calculated according to the following formula:
9. the method as claimed in claim 3, wherein the selected color pixel is a blue sub-pixel.
10. The method according to any one of claims 1 to 10, wherein the predetermined threshold is 0 to 0.024.
11. The method as claimed in any one of claims 1 to 10, wherein if the color difference of white light is greater than a predetermined threshold, the increment of the aperture ratio of the selected color sub-pixel on the display panel increases in a forward direction with the color difference of white light.
12. A display panel, comprising:
a pixel array comprising different color sub-pixels and adjusting the aperture ratio of the different color sub-pixels according to the method of any one of claims 1 to 11.
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