WO2020258230A1 - 色偏补偿方法、显示面板、显示装置 - Google Patents

色偏补偿方法、显示面板、显示装置 Download PDF

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Publication number
WO2020258230A1
WO2020258230A1 PCT/CN2019/093623 CN2019093623W WO2020258230A1 WO 2020258230 A1 WO2020258230 A1 WO 2020258230A1 CN 2019093623 W CN2019093623 W CN 2019093623W WO 2020258230 A1 WO2020258230 A1 WO 2020258230A1
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Prior art keywords
area
target
sub
test
display panel
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PCT/CN2019/093623
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English (en)
French (fr)
Inventor
马群
杨玉清
黄强
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京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2019/093623 priority Critical patent/WO2020258230A1/zh
Priority to CN201980000965.1A priority patent/CN112689909A/zh
Priority to US16/760,880 priority patent/US11647658B2/en
Publication of WO2020258230A1 publication Critical patent/WO2020258230A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/70—Testing, e.g. accelerated lifetime tests
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a color shift compensation method, a display panel, and a display device.
  • organic light-emitting diode (English: Organic Light-Emitting Diode, abbreviation: OLED) display devices are used in various fields due to their advantages of fast response, high contrast, and flexibility.
  • OLED Organic Light-Emitting Diode
  • This kind of OLED display The device has color cast.
  • the purpose of the present disclosure is to provide a color shift compensation method, a display panel, and a display device.
  • the first aspect of the present disclosure provides a color shift compensation method, including:
  • the color shift information at least part of the second sub-pixel units in the target area of the target display panel to be manufactured are controlled to have a target aperture ratio, and the target aperture ratio is different from the test aperture ratio to improve the
  • the target area is viewed from one viewing angle
  • the color shift phenomenon generated by the target area, the position of the target area on the target display panel is the same as the position of the test area on the test display panel, the The position of at least part of the second sub-pixel unit in the target area is the same as the position of the at least part of the first sub-pixel unit in the test area.
  • the step of acquiring the color shift information generated corresponding to the test area when the test area of the test display panel is viewed from the first viewing angle specifically includes:
  • the step of controlling at least part of the second sub-pixel units in the target area of the target display panel to be manufactured to have the target aperture ratio according to the color shift information specifically includes:
  • control at least part of the second sub-pixel units located in the target area to have a target aperture ratio, so that the target area can be viewed from a first viewing angle
  • the sub-pixel units of different colors in the target area have the same brightness attenuation ratio
  • the target display panel includes a pixel defining layer, the pixel defining layer defines a plurality of opening areas, and the sub-pixel units in the target display panel are arranged in the opening areas in a one-to-one correspondence;
  • the step of controlling at least part of the second sub-pixel units located in the target area to have a target aperture ratio according to the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area specifically includes:
  • the at least part of the second sub-pixel unit in the inner portion has a target aperture ratio.
  • the step of controlling at least part of the second sub-pixel units located in the target area to have a target aperture ratio according to the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area specifically includes:
  • the second sub-pixel unit located in the target area is controlled to have the smallest brightness attenuation ratio A target aperture ratio, which is smaller than the test aperture ratio of the first sub-pixel unit.
  • both the test area and the target area include at least a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit;
  • the first sub-pixel unit and the second sub-pixel unit both include the red sub-pixel unit; or, both the first sub-pixel unit and the second sub-pixel unit include the green sub-pixel unit; Alternatively, both the first sub-pixel unit and the second sub-pixel unit include the blue sub-pixel unit.
  • the test display panel includes a test plane display area and a test curved surface display area; the test area includes the test plane display area or the test curved surface display area;
  • the step of obtaining the color shift information corresponding to the test area when the test area of the test display panel is viewed from the first viewing angle specifically includes:
  • the bending angle includes: the mid-cut plane of the curved surface corresponding to the test area, and the plane corresponding to the test plane display area The angle between
  • the step of obtaining the first viewing angle according to the viewing angle and the bending angle specifically includes:
  • the viewing angle and the bending angle are added to obtain the first viewing angle.
  • the bending angle is 0 degrees
  • the first viewing angle is equal to the viewing angle of view.
  • the test area includes the test curved surface display area
  • a second aspect of the present disclosure provides a display panel in which at least part of the second sub-pixel units in the target area of the display panel has a target aperture ratio, so that the first viewing angle When viewing the target area, the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the target area are the same, which improves the color shift that occurs in the target area when the target area is viewed from the first viewing angle.
  • the display panel includes a pixel defining layer, the pixel defining layer defines a plurality of opening areas, and the sub-pixel units in the display panel are arranged in the opening areas in a one-to-one correspondence; the pixel defining layer At least a part of the opening area defined in the target area has a target size, so that the at least part of the second sub-pixel unit formed in the at least part of the opening area has a target aperture ratio.
  • the target area includes at least a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit;
  • the red sub-pixel unit located in the target area has the target aperture ratio; or,
  • the green sub-pixel unit located in the target area has the target aperture ratio; or,
  • the blue sub-pixel unit located in the target area has the target aperture ratio.
  • the display panel includes a target flat display area and a target curved display area
  • the target area includes the target flat display area or the target curved display area
  • the first viewing angle includes: the sum of the viewing angle when viewing the target area and the bending angle corresponding to the target area, and the bending angle is: the middle tangent plane of the curved surface corresponding to the target area and the The target plane shows the angle formed between the planes corresponding to the area.
  • the bending angle is 0 degrees
  • the first viewing angle is equal to the viewing angle of view.
  • the target area includes the target curved surface display area
  • a third aspect of the present disclosure provides a display device including the above display panel.
  • FIG. 1 is a brightness attenuation curve corresponding to each sub-pixel unit under different viewing angles according to an embodiment of the disclosure
  • FIG. 2 is a compensation relationship between corresponding aperture ratios and display brightness of sub-pixel units under different viewing angles according to embodiments of the disclosure
  • FIG. 3 is a schematic diagram of a target plane display area and a target curved display area of a display panel provided by an embodiment of the disclosure
  • FIG. 4 is a schematic diagram of a target aperture ratio corresponding to a sub-pixel unit located in a target area in a display panel provided by an embodiment of the disclosure.
  • the OLED display device is generally designed as a curved screen, and when the user watches the curved screen display, the color shift phenomenon may be observed in some areas, which seriously affects the user experience.
  • the inventor of the present disclosure has discovered through research that when the user is viewing the target area of the display device, the viewing angle and the bending angle of the curved screen in the target area are different, so that the user sees sub-pixel units of different colors. The degree of brightness attenuation is different, which causes the user to see the color shift phenomenon in the picture displayed in the target area.
  • the inventors of the present disclosure have further studied and found that since the bending angle of the curved screen in the display device has been predetermined at each position when the display device is actually made, a display device for testing can be made according to actual requirements. Then by viewing the target area of the trial display device from different viewing angles, determine the viewing angle of view, the relationship between the bending angle of the target area and the color shift phenomenon of the target area. After determining the relationship between the three, you can determine the relationship between the three The aperture ratio of the sub-pixel unit in the target area of the actual display device to be manufactured is adjusted, so as to realize the compensation for the color shift phenomenon and improve the user experience.
  • the embodiments of the present disclosure provide a color shift compensation method, including:
  • the color shift information at least part of the second sub-pixel units in the target area of the target display panel to be manufactured are controlled to have a target aperture ratio, and the target aperture ratio is different from the test aperture ratio to improve the
  • the target area is viewed from one viewing angle
  • the color shift phenomenon generated by the target area, the position of the target area on the target display panel is the same as the position of the test area on the test display panel, the The position of at least part of the second sub-pixel unit in the target area is the same as the position of the at least part of the first sub-pixel unit in the test area.
  • the actual size of the display panel, the bending position and the bending angle and other parameters have been predetermined. Therefore, in the development stage of the target display panel, conventional According to the preset size, bending position, bending angle and other parameters, a test display panel is first manufactured, and at least some of the first sub-pixel units included in the test area of the test display panel have a test aperture ratio; Observe the test area of the test display panel from the viewing angle, and obtain the color shift information corresponding to the test area.
  • the color shift information represents the image displayed on the test area of the test display panel when the test area of the test display panel is viewed at the first viewing angle
  • the color shift information indicates that the screen displayed in the test area of the test display panel is reddish, and the test area of the test display panel needs to be reduced.
  • the aperture ratio of the red sub-pixel unit to the target aperture ratio; or the color shift information indicates that the picture displayed in the test area of the test display panel is greenish, and the aperture ratio of the green sub-pixel unit in the test area of the test display panel needs to be reduced to the target aperture ratio
  • the first sub-pixel unit is the red sub-pixel unit or the green sub-pixel unit.
  • the aperture ratio of the second sub-pixel unit in the target area of the target display panel to be manufactured can be determined according to the color shift information.
  • the target area of the target display panel to be manufactured can be controlled
  • At least part of the second sub-pixel units in the inner part has a target aperture ratio, which is different from the test aperture ratio of the at least part of the first sub-pixel units, and can continue to control the target display panel except for the at least part of the second sub-pixel units.
  • the remaining sub-pixel units other than the pixel units have the same aperture ratio in a one-to-one correspondence with the remaining sub-pixel units other than the at least part of the first sub-pixel units in the test display panel, so as to improve the viewing angle at the first viewing angle.
  • test display panel and the target display panel have the same size, the same bending position and bending angle
  • sub-pixel units included in the test display panel and the target display panel include sub-pixel units.
  • the pixel units have a one-to-one correspondence, and the corresponding sub-pixel units have the same position and the same color; moreover, the position of the target area on the target display panel and the position of the test area on the test display panel Similarly, the position of the at least part of the second sub-pixel unit in the target area is the same as the position of the at least part of the first sub-pixel unit in the test area.
  • the first viewing angle of the target area of the target display panel is the same as the first viewing angle of the test area of the test display panel.
  • the color shift compensation method first obtain the color shift information corresponding to the test area when the test area of the test display panel is viewed from the first viewing angle, and then control the target to be produced based on the color shift information Corresponding at least a part of the second sub-pixel units in the target area of the display panel have a target aperture ratio, thereby improving the color shift caused by the target area during display, so that the user can view the target display area of the target display panel at the first viewing angle At this time, the color cast is reduced or eliminated, effectively improving the user experience.
  • the step of acquiring the color shift information corresponding to the test area when the test area of the test display panel is viewed from the first viewing angle specifically includes:
  • the step of controlling at least part of the second sub-pixel units in the target area of the target display panel to be manufactured to have the target aperture ratio according to the color shift information specifically includes:
  • control at least part of the second sub-pixel units located in the target area to have a target aperture ratio, so that the target area can be viewed from a first viewing angle
  • the sub-pixel units of different colors in the target area have the same brightness attenuation ratio
  • the test area may specifically include: determining the sub-pixel units of different colors included in the test area of the test display panel, and Corresponding to the brightness attenuation ratio under different viewing angles, for example, when the sub-pixel units in the target area of the test display panel include: red sub-pixel units, green sub-pixel units, blue sub-pixel units, and white sub-pixel units, Specifically, as shown in Figure 1, the abscissa in Figure 1 represents the first viewing angle, and the ordinate represents the brightness attenuation ratio corresponding to the sub-pixel units of different colors, where RL represents the brightness attenuation curve corresponding to the red sub-pixel unit, and GL represents the green The brightness attenuation curve corresponding to the sub-pixel unit, BL represents the brightness attenuation curve corresponding to the blue sub-pixel unit, and WL represents the brightness attenuation curve corresponding to the white sub-pixel unit.
  • the test display panel can continue to be tested according to the different colors in the test area.
  • the brightness attenuation ratio of the sub-pixel unit in the test area is determined, the aperture ratio compensation information corresponding to the sub-pixel units of different colors in the test area is determined, and then based on the aperture ratio compensation information, at least some of the second sub-pixel units located in the target area are controlled to have Target opening rate.
  • the corresponding aperture ratio compensation information can be determined as: in the target area of the target display panel, the sub-pixel unit of the certain color (that is, the second sub-pixel unit)
  • the aperture ratio is reduced to the first target aperture ratio, or the aperture ratio of the sub-pixel units of other colors in the target area of the target display panel is increased to the second target aperture ratio, so that viewing at the first viewing angle
  • the brightness attenuation ratio of the second sub-pixel unit is the same as or close to the brightness attenuation ratio of the sub-pixel units of other colors in the target area, that is, it satisfies the requirement for viewing the target under the first viewing angle.
  • the brightness change of the red sub-pixel unit ie, the second sub-pixel unit
  • the correspondence between the target aperture ratio that the red sub-pixel unit should have The relationship is shown in Table 1 below:
  • the first viewing angle (degrees) Brightness change Target opening rate 0 0 5.98% 10 5% 5.68% 20 10% 5.38% 30 20% 4.92%
  • the brightness change in Table 1 above represents the percentage of brightness attenuation, and the target aperture ratio is the target aperture ratio of the red sub-pixel unit in the target area of the target display panel.
  • the abscissa in Figure 2 represents the first viewing angle
  • the ordinate on the right represents the aperture ratio of the red sub-pixel unit in the test area of the test display panel
  • the ordinate on the left represents the test area of the test display panel.
  • Curve A represents the compensation change curve of the aperture ratio of the red sub-pixel unit under different first viewing angles
  • curve B represents the display brightness curve of the red sub-pixel unit under different first viewing angles. It can be seen from FIG. 2 that as the first viewing angle increases, the brightness of the red sub-pixel unit gradually increases, and the aperture ratio of the corresponding red sub-pixel unit should gradually decrease.
  • the brightness attenuation ratio corresponding to the sub-pixel units of different colors in the test area is controlled to be located At least part of the second sub-pixel units in the target area have a target aperture ratio, so that when the target area is viewed from a first viewing angle, the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the target area are the same, Furthermore, the color shift phenomenon generated in the target area when the target area of the target display panel is viewed from the first viewing angle is well improved.
  • the target display panel includes a pixel defining layer, the pixel defining layer defines a plurality of opening areas, and the sub-pixel units in the target display panel are arranged in the opening areas in a one-to-one correspondence;
  • the step of controlling at least part of the second sub-pixel units located in the target area to have a target aperture ratio according to the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area specifically includes:
  • the at least part of the second sub-pixel unit in the inner portion has a target aperture ratio.
  • a pixel defining layer when forming sub-pixel units in the display panel, generally first defines a number of opening regions corresponding to the sub-pixel units one-to-one, and then forms corresponding opening regions in each opening region. Therefore, the size of the aperture area determines the aperture ratio of the corresponding sub-pixel unit.
  • the compensation method provided by the foregoing embodiment it is possible to control at least part of the opening area defined by the pixel defining layer in the target area to have a target size according to the brightness attenuation ratio corresponding to the sub-pixel units of different colors in the test area,
  • the compensation method provided by the above-mentioned embodiment achieves the first in the target area of the target display panel.
  • the aperture ratio of the second sub-pixel unit can be effectively compensated, thereby better improving the color shift caused by the target area when the target area of the target display panel is viewed from the first viewing angle.
  • the step of controlling at least part of the second sub-pixel units located in the target area to have a target aperture ratio according to the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area may specifically include :
  • the second sub-pixel unit located in the target area is controlled to have the smallest brightness attenuation ratio A target aperture ratio, which is smaller than the test aperture ratio of the first sub-pixel unit.
  • both the test area and the target area include at least a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit; both the first sub-pixel unit and the second sub-pixel unit include The red sub-pixel unit; or, the first sub-pixel unit and the second sub-pixel unit both include the green sub-pixel unit; or, the first sub-pixel unit and the second sub-pixel unit Both include the blue sub-pixel unit.
  • the red sub-pixel unit corresponding to the red sub-pixel unit is controlled to have the target aperture ratio ,
  • the target aperture ratio is less than the aperture ratio of the red sub-pixel unit in the test area; or, among the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area, the brightness attenuation ratio corresponding to the green sub-pixel unit
  • the green sub-pixel unit located in the target area is controlled to have a target aperture ratio, which is smaller than the aperture ratio of the green sub-pixel unit in the test area; or, when there are different colors in the test area
  • the blue sub-pixel units located in the target area are controlled to have a target aperture ratio that is smaller than the test area
  • the test display panel when among the brightness attenuation ratios corresponding to the sub-pixel units of different colors in the test area, the red sub-pixel unit corresponds to the smallest brightness attenuation ratio, the test display panel will be viewed at the first viewing angle. The image displayed in the area is reddish.
  • the red sub-pixel unit located in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the red sub-pixel unit in the test area to make the target
  • the light-emitting brightness of the red sub-pixel units in the area is reduced, so that when viewing sub-pixel units of different colors in the target area of the target display panel at the first viewing angle, the corresponding brightness attenuation ratio of each sub-pixel unit is the same, which is very good This avoids the problem of reddish display in the target area when the target area of the target display panel is viewed at the first viewing angle.
  • the green sub-pixel unit in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the green sub-pixel unit in the test area, so that the green sub-pixel unit in the target area
  • the light-emitting brightness of the pixel unit is reduced, so that when sub-pixel units of different colors in the target area of the target display panel are viewed at the first viewing angle, the corresponding brightness attenuation ratios of each sub-pixel unit are the same, thereby avoiding the When viewing the target area of the target display panel under one viewing angle, the target area shows a greenish problem.
  • the blue sub-pixel unit located in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the blue sub-pixel unit in the test area to make the target area
  • the light-emitting brightness of the blue sub-pixel unit inside is reduced, so that when viewing sub-pixel units of different colors in the target area of the target display panel at the first viewing angle, the corresponding brightness attenuation ratio of each sub-pixel unit is the same, which is very good This avoids the problem that when the target area of the target display panel is viewed at the first viewing angle, the target area appears blue.
  • the test display panel includes a test plane display area and a test curved surface display area; the test area includes the test plane display area or the test curved surface display area;
  • the step of obtaining the color shift information corresponding to the test area when the test area of the test display panel is viewed from the first viewing angle specifically includes:
  • the bending angle includes: the mid-cut plane of the curved surface corresponding to the test area, and the plane corresponding to the test plane display area The angle between
  • the test display panel includes a test flat display area and a test curved display area, wherein the test curved display area is located at the periphery of the test flat display area, the display screen surface of the test flat display area is a flat structure, and the test surface display area The surface of the display screen is a curved structure.
  • the color shift phenomenon seen is related to the viewing angle of the test area and the corresponding bending angle of the test area, where the bending angle is The middle tangent plane of the curved surface corresponding to the test area and the angle formed between the plane corresponding to the test plane display area; therefore, after obtaining the viewing angle and the bending angle, you can Obtain the first viewing angle from the viewing angle and the bending angle, and then obtain the color shift information corresponding to the test area when the test area is viewed at the first viewing angle.
  • the color shift information obtained based on the first viewing angle takes into account both the viewing angle of the viewer and the bending angle of the test area.
  • the color shift caused by the viewing angle and the color shift caused by the bending angle can be compensated, so as to be more effective It realizes the compensation for the color shift of the target display panel, and further improves the user experience.
  • the range of the above-mentioned first viewing angle can be determined according to actual needs. For example, it can be selected from 0 degrees to 30 degrees, that is, to obtain the viewing angle range of 0 degrees to 30 degrees, test the display panel The color cast information generated in the test area.
  • the step of obtaining the first viewing angle according to the viewing angle and the bending angle may specifically include:
  • the viewing angle and the bending angle are added to obtain the first viewing angle.
  • the first viewing angle can be set to the sum of the viewing angle and the bending angle, and the result of viewing the test display substrate at the first viewing angle can be obtained.
  • the test area corresponds to the generated color shift information.
  • the first viewing angle is obtained by adding the viewing angle and the bending angle, so that the color shift information obtained based on the first viewing angle takes into account both the viewing angle of the viewer and the bending angle of the test area,
  • the color shift caused by the viewing angle and the color shift caused by the bending angle can be compensated, so as to achieve a more effective realization
  • the compensation for the color shift of the target display substrate improves the user experience.
  • the bending angle is 0 degrees
  • the first viewing angle is equal to the viewing angle of view.
  • the bending angle corresponding to the test plane display area is 0 degrees, that is, the color shift phenomenon seen by the viewer is only related to the viewing angle, so it can be determined that the viewing angle is The first viewing angle; and then obtaining the color shift information corresponding to the test plane display area when the test plane display area of the test display panel is viewed at the first viewing angle; and then based on the color shift information to target the target display panel
  • the aperture ratio of the second sub-pixel unit of the flat display area is compensated, so that when viewing the target flat display area of the target display panel at the first viewing angle, no color shift will be seen, thereby effectively improving the user experience .
  • the test area when the test area includes the test curved surface display area, it is determined that the viewing angle when viewing the test curved surface display area is 0 degrees, and the first viewing angle is equal to the bending angle.
  • the viewing angle of view has uncertainty, in order to avoid the uncertainty of the obtained color shift information when viewing the test curved display area of the test display panel from different viewing angles
  • the viewing angle can be set to 0 degrees (that is, the viewer is looking at the target curved surface display area), that is, the bending angle is used as the first viewing angle, and the corresponding color shift information is obtained based on the first viewing angle.
  • the test display panel includes a test flat display area and a test curved display area with a bending angle.
  • the aperture ratio corresponding to each sub-pixel unit is as follows As shown in Table 2 and Table 3, R represents the red sub-pixel unit, G represents the green sub-pixel unit, and B represents the blue sub-pixel unit.
  • the target curved display area of the target display panel 1 can be determined based on the acquired color shift information.
  • the red sub-pixel unit (that is, the second sub-pixel unit) of 11 is compensated, that is, the red sub-pixel units located at different bending angles in the target curved display area 11 have the target aperture ratio, for example, as shown in Table 4 below.
  • Table 6 shows:
  • each sub-pixel unit included in the target flat display area 10 of the target display panel 1 has a target aperture ratio that is not adjusted, and the bending angle in the target curved display area 11 of the target display panel is 10 degrees.
  • the aperture ratio of the red sub-pixel unit R included in the portion 110 is reduced by 0.3%, and the aperture ratio of the red sub-pixel unit R included in the portion 111 of the target curved display area 11 of the target display panel 1 with a bending angle of 20 degrees is reduced by 0.6% , So that when the target curved display area 11 of the target display panel 1 is viewed at the first viewing angle, the brightness attenuation ratios of the sub-pixel units of various colors included in the target curved display area 11 are the same, which ensures that at the first viewing angle When viewing the target curved surface display area 11 of the target display panel 1, no color shift is observed.
  • the compensation for the aperture ratio of the second sub-pixel unit in the target area of the target display panel only fine-tunes the aperture ratio, that is, the brightness of the white light formed by the sub-pixel units in the target area after adjustment is different from the non-target
  • the difference between the brightness of the white light formed by the sub-pixel units in the area is only about 20nit. Therefore, even if the aperture ratio of the sub-pixel units in the target area of the target display panel is compensated, the human eye is not easy to perceive the emission from the target area.
  • the difference between the brightness of the white light and the brightness of the white light emitted by the non-target area thereby better ensuring the user experience.
  • the embodiments of the present disclosure also provide a display panel, which adopts the color shift compensation method provided in the above embodiments to perform color shift compensation.
  • At least part of the second sub-pixel units in the target area of the display panel has a target aperture ratio, so that When viewing the target area from the first viewing angle, the corresponding brightness attenuation ratios of the sub-pixel units of different colors in the target area are the same, which improves the color produced by the target area when viewing the target area from the first viewing angle. Partial phenomenon.
  • the conventional manufacturing method can be adopted in the development stage of the display panel according to the preset size, bending position and bending angle. First, make a test display panel with other parameters, and then view the test area of the test display panel from the first viewing angle, and obtain the color shift information corresponding to the test area.
  • the color shift information can be used to determine the size of each sub-pixel unit in the target area of the display panel provided by the embodiment of the present disclosure (that is, the target display panel mentioned in the above embodiment).
  • the aperture ratio for example, can control at least part of the second sub-pixel units in the target area of the display panel to be manufactured to have the target aperture ratio, and control the remaining sub-pixel units in the display panel except for the at least part of the second sub-pixel units.
  • the pixel unit has the same aperture ratio as the corresponding sub-pixel unit in the test display panel; after the aperture ratio of each sub-pixel unit included in the target area in the display panel is determined, it can be based on the aperture ratio of each sub-pixel unit included in the target area Each sub-pixel unit in the target area of the display panel is made.
  • the display panel provided by the embodiments of the present disclosure uses the color shift compensation method provided in the above embodiments to perform color shift compensation, so that at least part of the sub-pixel units in the target area of the display panel have the target aperture ratio, so that the first viewing angle When viewing the target area from an angle, the corresponding brightness attenuation ratios of the sub-pixel units of different colors in the target area are the same, thereby improving the color shift caused by the sub-pixel units in the target area, so that the user is viewing from the first viewing angle When viewing the target display area of the display panel, the color cast is reduced or eliminated, which effectively improves the user experience.
  • the display panel includes a pixel defining layer, the pixel defining layer defines a plurality of opening areas, and the sub-pixel units in the display panel are arranged in the opening areas in a one-to-one correspondence; the pixels At least a part of the opening area defined in the target area by the defining layer has a target size, so that the at least part of the second sub-pixel unit formed in the at least part of the opening area has a target aperture ratio.
  • a pixel defining layer when forming sub-pixel units in the display panel, generally first defines a number of opening regions corresponding to the sub-pixel units one-to-one, and then forms corresponding opening regions in each opening region. Therefore, the size of the aperture area determines the aperture ratio of the corresponding sub-pixel unit.
  • the pixel defining layer can be controlled to have a target at least part of the opening area defined in the target area. Size so that the at least part of the second sub-pixel unit formed in the at least part of the opening area can have the target aperture ratio, so that when the target area is viewed from the first viewing angle, the target area is different.
  • the brightness attenuation ratios corresponding to the sub-pixel units of the colors are the same, so that the color shift phenomenon generated in the target area when the target area of the target display panel is viewed from the first viewing angle is well avoided.
  • the target area includes at least a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit;
  • the red sub-pixel unit located in the target area has the target aperture ratio; or,
  • the green sub-pixel unit located in the target area has the target aperture ratio; or,
  • the blue sub-pixel unit located in the target area has the target aperture ratio.
  • the test area display of the test display panel will be viewed at the first viewing angle when the brightness attenuation ratio corresponding to the red sub-pixel unit is the smallest.
  • the picture is reddish, therefore, the red sub-pixel unit located in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the red sub-pixel unit in the test area to make the target area
  • the light-emitting brightness of the red sub-pixel unit is reduced, so that when viewing sub-pixel units of different colors in the target area of the target display panel at the first viewing angle, the corresponding brightness attenuation ratio of each sub-pixel unit is the same, which is very good to avoid
  • the target area is displayed in red.
  • the green sub-pixel unit in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the green sub-pixel unit in the test area, so that the green sub-pixel unit in the target area
  • the light-emitting brightness of the pixel unit is reduced, so that when sub-pixel units of different colors in the target area of the target display panel are viewed at the first viewing angle, the corresponding brightness attenuation ratios of each sub-pixel unit are the same, thereby avoiding the When viewing the target area of the target display panel under one viewing angle, the target area shows a greenish problem.
  • the blue sub-pixel unit located in the target area can be controlled to have a target aperture ratio that is less than the aperture ratio of the blue sub-pixel unit in the test area to make the target area
  • the light-emitting brightness of the blue sub-pixel unit inside is reduced, so that when viewing sub-pixel units of different colors in the target area of the target display panel at the first viewing angle, the corresponding brightness attenuation ratio of each sub-pixel unit is the same, which is very good This avoids the problem that when the target area of the target display panel is viewed at the first viewing angle, the target area appears blue.
  • the display panel includes a target flat display area and a target curved display area
  • the target area includes the target flat display area or the target curved display area
  • the first viewing angle includes: the sum of the viewing angle when viewing the target area and the bending angle corresponding to the target area, and the bending angle is: the middle tangent plane of the curved surface corresponding to the target area and the The target plane shows the angle formed between the planes corresponding to the area.
  • the viewer sees the color shift phenomenon when watching the screen displayed in the test area of the test display panel It is related to the viewing angle when viewing the test area and the bending angle corresponding to the test area, wherein the bending angle is the mid-cut plane of the curved surface corresponding to the test area, which corresponds to the test plane display area Therefore, after obtaining the viewing angle and the bending angle, the viewing angle and the bending angle can be added to obtain the first viewing angle, and then obtaining the When the test area is viewed from the first viewing angle, the test area corresponds to the generated color shift information.
  • the two sub-pixels are compensated so that at least part of the second sub-pixels in the target area of the display panel have the target aperture ratio, thereby effectively improving the color shift seen by the viewer when viewing the target area from the first viewing angle phenomenon.
  • the display panel ie, the target display panel
  • the target plane display area included in the display panel is the same as that of the test display panel.
  • the test plane display area included in the test display panel has the same size and position
  • the target curved display area included in the display panel has the same size and position as the test curved display area included in the test display panel.
  • the first viewing angle when the test area of the test display panel is viewed at the first viewing angle, includes: the sum of the viewing angle when viewing the test area and the bending angle corresponding to the test area;
  • the first viewing angle should include the sum of the viewing angle when viewing the target area and the bending angle corresponding to the target area, and the bending angle includes: The angle formed between the middle tangent plane of the curved surface corresponding to the target area and the plane corresponding to the target plane display area.
  • the viewing angle when viewing the test area of the test display panel is the same as the viewing angle when viewing the target area of the display panel.
  • the color shift information obtained based on the first viewing angle takes into account both the viewing angle of the viewer and the bending angle of the test area.
  • the color shift caused by the viewing angle and the color caused by the bending angle can be compensated at the same time. Partial phenomenon, thereby further improving the user experience.
  • the bending angle is 0 degrees
  • the first viewing angle is equal to the viewing angle of view.
  • the test plane display area is Plane structure, so the bending angle corresponding to the test plane display area is 0 degrees, that is, the color shift phenomenon seen by the viewer is only related to the viewing angle, so the viewing angle can be determined as the first viewing angle;
  • the test plane display area corresponds to the generated color shift information; then based on the color shift information, the second sub-pixel unit of the target plane display area of the target display panel The aperture ratio is compensated, so that when viewing the target plane display area of the display panel at the first viewing angle, no color shift will be seen, thereby effectively improving user experience.
  • the first viewing angle when viewing the display panel from a first viewing angle, may be equal to the viewing angle when viewing the test area during the test phase.
  • the target area when the target area includes the target curved surface display area, it is determined that the viewing angle when viewing the target curved surface display area is 0 degrees, and the first viewing angle is equal to the bending angle.
  • the first viewing angle can be determined to be equal to the bending angle, based on The first viewing angle, the corresponding color shift information is obtained, and the second sub-pixel unit of the target curved display area of the display panel provided in the above embodiment is compensated according to the color shift information, so that viewing at the first viewing angle When the target curved surface of the display panel displays the area, no color shift phenomenon will be seen, thereby effectively improving the user experience.
  • the first viewing angle when viewing the display panel from a first viewing angle, the first viewing angle may be equal to the bending angle.
  • the embodiments of the present disclosure also provide a display device, including the display panel provided in the above-mentioned embodiments.
  • the display panel provided by the above embodiment includes the target area, the user will not see the color shift when viewing the target area of the display panel at the first viewing angle, which effectively improves the user experience. Therefore, this When the display device provided by the disclosed embodiment includes the above-mentioned display panel, the above-mentioned beneficial effects can also be achieved, which will not be repeated here.
  • the display device may be any product or component with a display function such as a TV, a monitor, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a back Board etc.

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Abstract

一种色偏补偿方法，包括：获取以第一观看角度观看测试显示面板的测试区域时，测试区域对应产生的色偏信息，测试区域的至少部分第一亚像素单元具有测试开口率。根据色偏信息，控制所要制作的目标显示面板（1）的目标区域内的至少部分第二亚像素单元具有目标开口率，目标开口率与测试开口率不同，以改善以第一观看角度观看目标区域时，目标区域产生的色偏现象。目标区域在目标显示面板（1）上的位置与测试区域在测试显示面板上的位置相同，至少部分第二亚像素单元在目标区域内的位置，与至少部分第一亚像素单元在测试区域内的位置相同。还公开了一种显示面板和显示装置。

Description

色偏补偿方法、显示面板、显示装置 技术领域
本公开涉及显示技术领域，尤其涉及一种色偏补偿方法、显示面板、显示装置。
背景技术
随着显示技术的不断发展，有机发光二极管(英文：Organic Light-Emitting Diode，简称：OLED)显示装置以其响应速度快、对比度高和柔性等优势，被应用在各个领域，但是这种OLED显示装置存在色偏现象。
发明内容
本公开的目的在于提供一种色偏补偿方法、显示面板、显示装置。
本公开的第一方面提供一种色偏补偿方法，包括：
获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息，所述测试区域的至少部分第一亚像素单元具有测试开口率；
根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，所述目标开口率与所述测试开口率不同，以改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象，所述目标区域在所述目标显示面板上的位置与所述测试区域在所述测试显示面板上的位置相同，所述至少部分第二亚像素单元在所述目标区域内的位置，与所述至少部分第一亚像素单元在所述测试区域内的位置相同。
可选的，所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息的步骤具体包括：
确定以所述第一观看角度观看所述测试显示面板的测试区域时，所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例。
可选的，所述根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，所述目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同。
可选的，所述目标显示面板包括像素界定层，所述像素界定层限定出多个开口区，所述目标显示面板中的亚像素单元一一对应设置在所述开口区内；
所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，以使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
可选的，所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，所述第一亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的所述第二亚像素单元具有目标开口率，该目标开口率小于所述第一亚像素单元的所述测试开口率。
可选的，所述测试区域内和所述目标区域内均至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；
所述第一亚像素单元和所述第二亚像素单元均包括所述红色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述绿色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述蓝色亚像素单元。
可选的，所述测试显示面板包括测试平面显示区域和测试曲面显示区域；所述测试区域包括所述测试平面显示区域或所述测试曲面显示区域；
所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区 域对应产生的色偏信息的步骤具体包括：
确定观看所述测试区域时的观看视角，以及所述测试区域对应的弯曲角度，所述弯曲角度包括：所述测试区域对应的弯曲表面的中间切平面，与所述测试平面显示区域对应的平面之间所成的角度；
根据所述观看视角与所述弯曲角度，得到所述第一观看角度；
获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的色偏信息。
可选的，所述根据所述观看视角与所述弯曲角度，得到所述第一观看角度的步骤具体包括：
将所述观看视角与所述弯曲角度相加，得到所述第一观看角度。
可选的，当所述测试区域包括所述测试平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
可选的，当所述测试区域包括所述测试曲面显示区域时，确定观看所述测试曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
基于上述色偏补偿方法的技术方案，本公开的第二方面提供一种显示面板，所述显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，该目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象。
可选的，所述显示面板包括像素界定层，所述像素界定层限定出多个开口区，所述显示面板中的亚像素单元一一对应设置在所述开口区内；所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
可选的，所述目标区域内至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；
位于所述目标区域内的红色亚像素单元具有所述目标开口率；或，
位于所述目标区域内的绿色亚像素单元具有所述目标开口率；或，
位于所述目标区域内的蓝色亚像素单元具有所述目标开口率。
可选的，所述显示面板包括目标平面显示区域和目标曲面显示区域，所述目标区域包括所述目标平面显示区域或所述目标曲面显示区域，
所述第一观看角度包括：观看所述目标区域时的观看视角与所述目标区域对应的弯曲角度之和，所述弯曲角度为：所述目标区域对应的弯曲表面的中间切平面，与所述目标平面显示区域对应的平面之间所成的角度。
可选的，当所述目标区域包括所述目标平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
可选的，当所述目标区域包括所述目标曲面显示区域时，确定观看所述目标曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
基于上述显示面板的技术方案，本公开的第三方面提供一种显示装置，包括上述显示面板。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例提供的不同观看视角下各亚像素单元对应的亮度衰减曲线；
图2为本公开实施例提供的亚像素单元在不同观看角度下对应的开口率和显示亮度之间的补偿关系；
图3为本公开实施例提供的显示面板的目标平面显示区域和目标曲面显示区域的示意图；
图4为本公开实施例提供的显示面板中位于目标区域的亚像素单元对应的目标开口率示意图。
具体实施方式
为了进一步说明本公开实施例提供的色偏补偿方法、显示面板、显示装置，下面结合说明书附图进行详细描述。
相关技术中，为了满足实际应用场景的需要，一般会将OLED显示装置设计为曲面屏，而用户在观看曲面屏显示时，在一些区域内会观看到色偏现象，严重影响了用户体验。基于此问题的存在，本公开的发明人经研究发现，用户在观看显示装置的目标区域时，由于观看视角和曲面屏在目标区域的弯曲角度不同，使得用户看到的不同颜色的亚像素单元的亮度衰减程度不同，从而导致用户看到目标区域显示的画面存在色偏现象。
本公开的发明人经进一步研究发现，由于在实际制作显示装置时，显示装置中的曲面屏在各个位置处的弯曲角度已预先确定，因此，可先根据实际要求制作一测试用的显示装置，然后通过以不同视角观看该试用的显示装置的目标区域，确定观看视角，目标区域的弯曲角度和目标区域的色偏现象之间的关系，在确定三者的关系后，可根据三者的关系对实际要制作的显示装置中目标区域内的亚像素单元的开口率进行调整，从而实现对色偏现象的补偿，提升用户体验。
本公开实施例提供了一种色偏补偿方法，包括：
获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息，所述测试区域的至少部分第一亚像素单元具有测试开口率；
根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，所述目标开口率与所述测试开口率不同，以改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象，所述目标区域在所述目标显示面板上的位置与所述测试区域在所述测试显示面板上的位置相同，所述至少部分第二亚像素单元在所述目标区域内的位置，与所述至少部分第一亚像素单元在所述测试区域内的位置相同。
具体地，在实际制作显示面板(即上述目标显示面板)时，显示面板的实际尺寸、弯曲的位置和弯曲的角度等参数均已预先确定，因此，在目标显示面板的开发阶段，可采用常规的制作方式，按照预设的尺寸、弯曲位置和弯曲角度等参数先制作一测试显示面板，该测试显示面板的测试区域内包括 的至少部分第一亚像素单元具有测试开口率；然后以第一观看角度观看测试显示面板的测试区域，并得到该测试区域对应产生的色偏信息，该色偏信息表征以第一观看角度观看测试显示面板的测试区域时，测试显示面板的测试区域显示的画面的色偏情况，以及对应不同色偏情况下需要进行的色偏补偿方式，示例性的，色偏信息表示测试显示面板的测试区域显示的画面偏红色，需要降低测试显示面板的测试区域内的红色亚像素单元的开口率至目标开口率；或者色偏信息表示测试显示面板的测试区域显示的画面偏绿色，需要降低测试显示面板的测试区域内的绿色亚像素单元的开口率至目标开口率；在上述两种情况下，所述第一亚像素单元即为所述红色亚像素单元或所述绿色亚像素单元。
在获取所述色偏信息后，可根据该色偏信息确定要制作的目标显示面板的目标区域内第二亚像素单元的开口率，示例性的，可控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，该目标开口率与所述至少部分第一亚像素单元具有测试开口率不同，并可继续控制目标显示面板中除所述至少部分第二亚像素单元之外的剩余亚像素单元，与测试显示面板中除所述至少部分第一亚像素单元之外的剩余亚像素单元一一对应具有相同的开口率，以改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象。
需要说明，所述测试显示面板与所述目标显示面板，具有相同的尺寸、相同的弯曲位置和弯曲角度，且所述测试显示面板中包括的亚像素单元与所述目标显示面板中包括的亚像素单元一一对应，相对应的亚像素单元具有相同的位置和相同的颜色；而且，所述目标区域在所述目标显示面板上的位置与所述测试区域在所述测试显示面板上的位置相同，所述至少部分第二亚像素单元在所述目标区域内的位置，与所述至少部分第一亚像素单元在所述测试区域内的位置相同。另外，所制作的目标显示面板在实际应用时，观看目标显示面板的目标区域的第一观看角度，与观看测试显示面板的测试区域时的第一观看角度相同。
本公开实施例提供的色偏补偿方法中，先获取以第一观看角度观看测试显示面板的测试区域时，该测试区域对应产生的色偏信息，然后基于该色偏 信息，控制所要制作的目标显示面板中目标区域内相应的至少部分第二亚像素单元具有目标开口率，从而改善该目标区域在显示时产生的色偏现象，使得用户在以第一观看角度观看目标显示面板的目标显示区域时，色偏现象减弱或消除，有效提升了用户体验。
在一些实施例中，所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息的步骤具体包括：
确定以所述第一观看角度观看所述测试显示面板的测试区域时，所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例；
所述根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，所述目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同。
具体地，获取以第一观看角度观看测试显示面板的测试区域，该测试区域对应产生的色偏信息时，可具体包括：确定测试显示面板的测试区域内包括的不同颜色的亚像素单元，在对应不同观看角度下的亮度衰减比例，示例性的，当上述测试显示面板目标区域内的亚像素单元包括：红色亚像素单元、绿色亚像素单元、蓝色亚像素单元和白色亚像素单元时，具体如图1所示，图1中的横坐标代表第一观看角度，纵坐标代表不同颜色的亚像素单元对应的亮度衰减比例，其中RL代表红色亚像素单元对应的亮度衰减曲线，GL代表绿色亚像素单元对应的亮度衰减曲线，BL代表蓝色亚像素单元对应的亮度衰减曲线，WL代表白色亚像素单元对应的亮度衰减曲线。
在确定以所述第一观看角度观看所述测试显示面板的测试区域时，所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例后，可继续根据测试显示面板的测试区域内不同颜色的亚像素单元的亮度衰减比例，确定该测试区域内不同颜色的亚像素单元对应的开口率补偿信息，然后基于该开口率补偿信息控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率。
更详细地说，在以第一观看角度观看所述测试区域的情况下，当所述测试区域内某种颜色的亚像素单元(即第一亚像素单元)的亮度衰减比例，小于该测试区域内其它颜色的亚像素单元的亮度衰减比例时，可确定相应的开口率补偿信息为：将所述目标显示面板的目标区域中，该某种颜色的亚像素单元(即第二亚像素单元)的开口率降低至第一目标开口率，或者将所述目标显示面板的目标区域中所述其它颜色的亚像素单元的开口率提升至第二目标开口率，以使得在第一观看角度下观看所述目标区域时，第二亚像素单元的亮度衰减比例，与所述目标区域中其它颜色的亚像素单元的亮度衰减比例相同或者相接近，即满足了在第一观看角度下观看所述目标区域时，所述目标区域内不同颜色的亚像素单元具有相同或者相接近的亮度衰减比例。
示例性的，不同第一观看角度下，目标显示面板的目标区域内红色亚像素单元(即第二亚像素单元)的亮度变化，以及该红色亚像素单元应具有的目标开口率之间的对应关系如下方表1所示：
第一观看角度(度) 亮度变化 具有的目标开口率
0 0 5.98％
10 5％ 5.68％
20 10％ 5.38％
30 20％ 4.92％
表1
上述表1中亮度变化表示亮度衰减的百分比，具有的目标开口率即为目标显示面板中位于目标区域内的红色亚像素单元具有的目标开口率。
如图2所示，图2中横坐标代表第一观看角度，右侧纵坐标代表测试显示面板的测试区域内的红色亚像素单元的开口率，左侧纵坐标代表测试显示面板的测试区域内的红色亚像素单元的显示亮度，A曲线代表不同第一观看角度下红色亚像素单元的开口率的补偿变化的曲线，B曲线代表不同第一观看角度下红色亚像素单元的显示亮度曲线。从图2中能够看出，随着第一观看角度的增加，红色亚像素单元的亮度逐渐增加，相应的红色亚像素单元的开口率应该逐渐降低。
上述实施例提供的色偏补偿方法中，根据以所述第一观看角度观看所述 测试显示面板的测试区域时，所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，来控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率，从而使得以第一观看角度观看所述目标区域时，所述目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，进而很好的改善了以第一观看角度观看目标显示面板的目标区域时，目标区域产生的色偏现象。
在一些实施例中，所述目标显示面板包括像素界定层，所述像素界定层限定出多个开口区，所述目标显示面板中的亚像素单元一一对应设置在所述开口区内；
所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，以使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
具体地，以OLED显示面板为例，在形成显示面板中的亚像素单元时，一般先通过像素界定层限定出与亚像素单元一一对应的多个开口区，然后在各开口区中形成对应的亚像素单元，因此，开口区的大小，决定了对应形成的亚像素单元的开口率。
上述实施例提供的补偿方法中，能够根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，以使得形成在所述至少部分开口区内的所述至少部分第二亚像素单元能够具有所述目标开口率，可见上述实施例提供的补偿方法实现了在制作目标显示面板的目标区域内的第二亚像素单元时，能够对该第二亚像素单元的开口率进行有效补偿，从而更好的改善了以第一观看角度观看目标显示面板的目标区域时，目标区域产生的色偏现象。
在一些实施例中，所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤可具体包括：
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，所述第一亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的所述第二亚像素单元具有目标开口率，该目标开口率小于所述第一亚像素单元的所述测试开口率。
进一步地，所述测试区域内和所述目标区域内均至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；所述第一亚像素单元和所述第二亚像素单元均包括所述红色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述绿色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述蓝色亚像素单元。
具体地，当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，红色亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的红色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的红色亚像素单元的开口率；或者，当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，绿色亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的绿色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的绿色亚像素单元的开口率；或者，当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，蓝色亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的蓝色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的蓝色亚像素单元的开口率。
更详细地说，当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，红色亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏红色，因此，可通过控制位于所述目标区域内的红色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的红色亚像素单元的开口率，来使得目标区域内的红色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏红色的问题。
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，绿色 亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏绿色，因此，可通过控制位于所述目标区域内的绿色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的绿色亚像素单元的开口率，来使得目标区域内的绿色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏绿色的问题。
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，蓝色亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏蓝色，因此，可通过控制位于所述目标区域内的蓝色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的蓝色亚像素单元的开口率，来使得目标区域内的蓝色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏蓝色的问题。
在一些实施例中，所述测试显示面板包括测试平面显示区域和测试曲面显示区域；所述测试区域包括所述测试平面显示区域或所述测试曲面显示区域；
所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息的步骤具体包括：
确定观看所述测试区域时的观看视角，以及所述测试区域对应的弯曲角度，所述弯曲角度包括：所述测试区域对应的弯曲表面的中间切平面，与所述测试平面显示区域对应的平面之间所成的角度；
根据所述观看视角与所述弯曲角度，得到所述第一观看角度；
获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的色偏信息。
具体地，所述测试显示面板包括测试平面显示区域和测试曲面显示区域， 其中，测试曲面显示区域位于测试平面显示区域的周边，测试平面显示区域的显示屏表面为平面结构，测试曲面显示区域的显示屏表面为曲面结构。
观看者在观看测试显示面板的测试区域显示的画面时，看到的色偏现象与观看所述测试区域时的观看视角，以及所述测试区域对应的弯曲角度均相关，其中所述弯曲角度为所述测试区域对应的弯曲表面的中间切平面，与所述测试平面显示区域对应的平面之间所成的角度；因此，在获取所述观看视角和所述弯曲角度后，可根据所述观看视角与所述弯曲角度，得到所述第一观看角度，然后获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的色偏信息。
由于上述通过根据所述观看视角与所述弯曲角度，得到所述第一观看角度，使得基于该第一观看角度获取的色偏信息同时考虑了观看者的观看视角和测试区域的弯曲角度，这样在根据该色偏信息对目标显示面板中目标区域内的第二亚像素单元进行补偿时，能够补偿由观看视角产生的色偏现象和由所述弯曲角度产生的色偏现象，从而更有效的实现对目标显示面板色偏现象的补偿，进一步提升了用户的体验。
值得注意，上述第一观看角度的范围可根据实际需要确定，示例性的，可选在0度至30度之间，即获取到在0度至30度的观看角度范围内，测试显示面板的测试区域内产生的色偏信息。
在一些实施例中，所述根据所述观看视角与所述弯曲角度，得到所述第一观看角度的步骤可具体包括：
将所述观看视角与所述弯曲角度相加，得到所述第一观看角度。
具体地，观看者在观看测试显示基板的测试区域时，可将第一观看角度设置为所述观看视角和所述弯曲角度的加和，并获取在该第一观看角度下观看测试显示基板的测试区域时，该测试区域对应产生的色偏信息。
上述通过将所述观看视角与所述弯曲角度相加，得到所述第一观看角度，使得基于该第一观看角度获取的色偏信息同时考虑了观看者的观看视角和测试区域的弯曲角度，这样在根据该色偏信息对目标显示基板中目标区域内的亚像素单元进行补偿时，能够补偿由观看视角产生的色偏现象和由所述弯曲角度产生的色偏现象，从而更有效的实现对目标显示基板色偏现象的补偿， 提升了用户的体验。
在一些实施例中，当所述测试区域包括所述测试平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
具体地，由于上述测试平面显示区域为平面结构，因此测试平面显示区域对应的弯曲角度为0度，即观看者看到的色偏现象仅与所述观看视角相关，因此可确定该观看视角为所述第一观看角度；然后获取以该第一观看角度观看测试显示面板的测试平面显示区域时，该测试平面显示区域对应产生的色偏信息；然后基于该色偏信息对目标显示面板的目标平面显示区域的第二亚像素单元的开口率进行补偿，使得在该第一观看角度下观看所述目标显示面板的目标平面显示区域时，不会看到色偏现象，从而有效提升了用户体验。
在一些实施例中，当所述测试区域包括所述测试曲面显示区域时，确定观看所述测试曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
具体地，由于观看者在观看目标显示面板的目标曲面显示区域时，观看视角存在不确定性，为了避免不同视角观看测试显示面板的测试曲面显示区域时，对应获取的色偏信息的不确定性，可将所述观看视角设置为0度(即观看者正视所述目标曲面显示区域)，即将所述弯曲角度作为第一观看角度，基于该第一观看角度，获取对应的色偏信息。
更详细地说，相关技术中，测试显示面板包括测试平面显示区域和具有弯曲角度的测试曲面显示区域，在该测试平面显示区域和测试曲面显示区域中，各亚像素单元对应的开口率如下方表2和表3所示，表中R代表红色亚像素单元、G代表绿色亚像素单元、B代表蓝色亚像素单元。
Figure PCTCN2019093623-appb-000001
表2
Figure PCTCN2019093623-appb-000002
表3
如图3和图4所示，在第一观看角度下观看到测试显示面板的测试曲面显示区域显示的画面偏红色时，可基于获取到的色偏信息对目标显示面板1的目标曲面显示区域11的红色亚像素单元(即第二亚像素单元)进行补偿，即使得位于该目标曲面显示区域11中不同弯曲角度处的红色亚像素单元具有目标开口率，示例性的，如下方表4～表6所示：
Figure PCTCN2019093623-appb-000003
表4
Figure PCTCN2019093623-appb-000004
表5
Figure PCTCN2019093623-appb-000005
表6
从表4～表6能够看出，对目标显示面板1的目标平面显示区域10包括的各亚像素单元具有目标开口率不调整，将目标显示面板的目标曲面显示区域11中弯曲角度为10度的部分110包括的红色亚像素单元R的开口率降低0.3％，将目标显示面板1的目标曲面显示区域11中弯曲角度为20度的部分111包括的红色亚像素单元R的开口率降低0.6％，从而使得以第一观看角度观看目标显示面板1的目标曲面显示区域11时，目标曲面显示区域11中包括的各种颜色的亚像素单元的亮度衰减比例相同，保证了在第一观看角度下观看目标显示面板1的目标曲面显示区域11时，不会观看到色偏现象。
需要说明，由于对目标显示面板的目标区域内的第二亚像素单元的开口率进行补偿只是微调了开口率的大小，即调整后目标区域内的亚像素单元形 成的白光的亮度，与非目标区域内的亚像素单元形成的白光的亮度之间相差仅在20nit左右，因此，即使对目标显示面板的目标区域内的亚像素单元的开口率进行补偿，人眼也不容易察觉到目标区域发出的白光的亮度和非目标区域发出的白光亮度之间的差异，从而更好的保证了用户体验。
本公开实施例还提供了一种显示面板，采用上述实施例提供的色偏补偿方法进行色偏补偿，所述显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，该目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象。
在采用上述实施例提供的色偏补偿方法对本公开实施例提供的显示面板进行色偏补偿时，可在显示面板的开发阶段，采用常规的制作方式，按照预设的尺寸、弯曲位置和弯曲角度等参数先制作一测试显示面板，然后以第一观看角度观看测试显示面板的测试区域，并得到该测试区域对应产生的色偏信息。
在获取所述色偏信息后，可根据该色偏信息确定要制作的、本公开实施例提供的显示面板(即上述实施例中提到的目标显示面板)的目标区域内各亚像素单元的开口率，示例性的，可控制所要制作的显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，控制显示面板中除所述至少部分第二亚像素单元之外的剩余亚像素单元具有与测试显示板中对应的亚像素单元相同的开口率；在确定显示面板中目标区域包括的各亚像素单元的开口率后，可基于该目标区域包括的各亚像素单元的开口率制作所述显示面板目标区域内的各亚像素单元。
本公开实施例提供的显示面板采用上述实施例提供的色偏补偿方法进行了色偏补偿，使得所述显示面板的目标区域内的至少部分亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，该目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，从而改善了该目标区域内的亚像素单元产生的色偏现象，使得用户在以第一观看角度观看显示面板的目标显示区域时，色偏现象减弱或消除，有效提升了用户体验。
在一些实施例中，所述显示面板包括像素界定层，所述像素界定层限定 出多个开口区，所述显示面板中的亚像素单元一一对应设置在所述开口区内；所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
具体地，以OLED显示面板为例，在形成显示面板中的亚像素单元时，一般先通过像素界定层限定出与亚像素单元一一对应的多个开口区，然后在各开口区中形成对应的亚像素单元，因此，开口区的大小，决定了对应形成的亚像素单元的开口率。
在制作上述实施例提供的显示面板时，可根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，使得形成在所述至少部分开口区内的所述至少部分第二亚像素单元能够具有所述目标开口率，这样在以第一观看角度观看所述目标区域时，所述目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，进而很好的避免了以第一观看角度观看目标显示面板的目标区域时，目标区域产生的色偏现象。
在一些实施例中，所述目标区域内至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；
位于所述目标区域内的红色亚像素单元具有所述目标开口率；或，
位于所述目标区域内的绿色亚像素单元具有所述目标开口率；或，
位于所述目标区域内的蓝色亚像素单元具有所述目标开口率。
具体地，当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，红色亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏红色，因此，可通过控制位于所述目标区域内的红色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的红色亚像素单元的开口率，来使得目标区域内的红色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏红色的问题。
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，绿色亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏绿色，因此，可通过控制位于所述目标区域内的绿色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的绿色亚像素单元的开口率，来使得目标区域内的绿色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏绿色的问题。
当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，蓝色亚像素单元对应的亮度衰减比例最小时，在第一观看角度下会观看到测试显示面板的测试区域显示的画面偏蓝色，因此，可通过控制位于所述目标区域内的蓝色亚像素单元具有目标开口率，该目标开口率小于所述测试区域内的蓝色亚像素单元的开口率，来使得目标区域内的蓝色亚像素单元的发光亮度降低，从而使得在第一观看角度下观看目标显示面板的目标区域内不同颜色的亚像素单元时，各亚像素单元对应的亮度衰减比例相同，从而很好的避免了在第一观看角度下观看目标显示面板的目标区域时，目标区域显示偏蓝色的问题。
在一些实施例中，所述显示面板包括目标平面显示区域和目标曲面显示区域，所述目标区域包括所述目标平面显示区域或所述目标曲面显示区域，
所述第一观看角度包括：观看所述目标区域时的观看视角与所述目标区域对应的弯曲角度之和，所述弯曲角度为：所述目标区域对应的弯曲表面的中间切平面，与所述目标平面显示区域对应的平面之间所成的角度。
具体地，在基于上述实施例提供的色偏补偿方法，对上述实施例提供的显示面板进行色偏补偿时，观看者在观看测试显示面板的测试区域显示的画面时，看到的色偏现象与观看所述测试区域时的观看视角，以及所述测试区域对应的弯曲角度均相关，其中所述弯曲角度为所述测试区域对应的弯曲表面的中间切平面，与所述测试平面显示区域对应的平面之间所成的角度；因此，在获取所述观看视角和所述弯曲角度后，可将所述观看视角与所述弯曲 角度相加，得到所述第一观看角度，然后获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的色偏信息。
这样在获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的色偏信息后，可基于该色偏信息，对上述实施例提供的显示面板的目标区域内至少部分第二亚像素进行补偿，使得所述显示面板的目标区域内至少部分第二亚像素具有目标开口率，从而有效改善观看者以所述第一观看角度观看所述目标区域时，看到的色偏现象。
需要说明，由于上述实施例提供的显示面板(即目标显示面板)与所述测试显示面板具有相同的尺寸、相同的弯曲位置和弯曲角度，因此所述显示面板包括的目标平面显示区域与所述测试显示面板包括的测试平面显示区域具有相同的尺寸和位置，所述显示面板包括的目标曲面显示区域与所述测试显示面板包括的测试曲面显示区域具有相同的尺寸和位置。
另外，由于在以第一观看角度观看所述测试显示面板的测试区域时，该第一观看角度包括：观看所述测试区域时的观看视角与所述测试区域对应的弯曲角度之和；因此在以第一观看角度观看所述目标显示面板的目标区域时，该第一观看角度应包括：观看所述目标区域时的观看视角与所述目标区域对应的弯曲角度之和，该弯曲角度包括：所述目标区域对应的弯曲表面的中间切平面，与所述目标平面显示区域对应的平面之间所成的角度。而且，观看所述测试显示面板的测试区域时的观看视角，与观看所述显示面板的目标区域时的观看视角相同。
由于上述通过将所述观看视角与所述弯曲角度相加，得到所述第一观看角度，使得基于该第一观看角度获取的色偏信息同时考虑了观看者的观看视角和测试区域的弯曲角度，这样在根据该色偏信息对上述实施例提供的显示面板中目标区域内的第二亚像素单元进行补偿时，能够同时补偿由观看视角产生的色偏现象和由所述弯曲角度产生的色偏现象，从而进一步提升了用户的体验。
在一些实施例中，当所述目标区域包括所述目标平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
具体地，在基于上述实施例提供的色偏补偿方法，对上述实施例提供的 显示面板进行色偏补偿时，当所述测试区域包括所述测试平面显示区域时，由于上述测试平面显示区域为平面结构，因此测试平面显示区域对应的弯曲角度为0度，即观看者看到的色偏现象仅与所述观看视角相关，因此可确定该观看视角为所述第一观看角度；然后获取以该第一观看角度观看测试显示面板的测试平面显示区域时，该测试平面显示区域对应产生的色偏信息；然后基于该色偏信息对目标显示面板的目标平面显示区域的第二亚像素单元的开口率进行补偿，使得在该第一观看角度下观看所述显示面板的目标平面显示区域时，不会看到色偏现象，从而有效提升了用户体验。
值得注意，在补偿后，在以第一观看角度观看所述显示面板时，该第一观看角度可等于测试阶段观看所述测试区域时的观看角度。
在一些实施例中，当所述目标区域包括所述目标曲面显示区域时，确定观看所述目标曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
具体地，由于观看者在观看上述实施例提供的显示面板的目标曲面显示区域时，观看视角存在不确定性，因此，在测试阶段，可将第一观看角度确定为等于所述弯曲角度，基于该第一观看角度，获取对应的色偏信息，并根据该色偏信息对上述实施例提供的显示面板的目标曲面显示区域的第二亚像素单元进行补偿，使得在该第一观看角度下观看所述显示面板的目标曲面显示区域时，不会看到色偏现象，从而有效提升了用户体验。
值得注意，在补偿后，在以第一观看角度观看所述显示面板时，该第一观看角度可等于所述弯曲角度。
本公开实施例还提供了一种显示装置，包括上述实施例提供的显示面板。
由于上述实施例提供的显示面板中包括所述目标区域，使得用户在以第一观看角度观看所述显示面板的目标区域时，不会看到色偏现象，有效提升了用户体验，因此，本公开实施例提供的显示装置在包括上述显示面板时，同样能够实现上述有益效果，此处不再赘述。
需要说明的是，所述显示装置可以为：电视、显示器、数码相框、手机、平板电脑等任何具有显示功能的产品或部件，其中，所述显示装置还包括柔性电路板、印刷电路板和背板等。
需要说明，本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于产品实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (17)

  1. 一种色偏补偿方法，包括：
    获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息，所述测试区域的至少部分第一亚像素单元具有测试开口率；
    根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，所述目标开口率与所述测试开口率不同，以改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象，所述目标区域在所述目标显示面板上的位置与所述测试区域在所述测试显示面板上的位置相同，所述至少部分第二亚像素单元在所述目标区域内的位置，与所述至少部分第一亚像素单元在所述测试区域内的位置相同。
  2. 根据权利要求1所述的色偏补偿方法，其中，所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息的步骤具体包括：
    确定以所述第一观看角度观看所述测试显示面板的测试区域时，所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例。
  3. 根据权利要求2所述的色偏补偿方法，其中，所述根据所述色偏信息，控制所要制作的目标显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
    根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，所述目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同。
  4. 根据权利要求3所述的色偏补偿方法，其中，所述目标显示面板包括像素界定层，所述像素界定层限定出多个开口区，所述目标显示面板中的亚像素单元一一对应设置在所述开口区内；
    所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤 具体包括：
    根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，以使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
  5. 根据权利要求3所述的色偏补偿方法，其中，
    所述根据所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例，控制位于所述目标区域内的至少部分第二亚像素单元具有目标开口率的步骤具体包括：
    当所述测试区域内不同颜色的亚像素单元对应的亮度衰减比例中，所述第一亚像素单元对应的亮度衰减比例最小时，控制位于所述目标区域内的所述第二亚像素单元具有目标开口率，该目标开口率小于所述第一亚像素单元的所述测试开口率。
  6. 根据权利要求5所述的色偏补偿方法，其中，所述测试区域内和所述目标区域内均至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；
    所述第一亚像素单元和所述第二亚像素单元均包括所述红色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述绿色亚像素单元；或者，所述第一亚像素单元和所述第二亚像素单元均包括所述蓝色亚像素单元。
  7. 根据权利要求1～6中任一项所述的色偏补偿方法，其中，所述测试显示面板包括测试平面显示区域和测试曲面显示区域；所述测试区域包括所述测试平面显示区域或所述测试曲面显示区域；
    所述获取以第一观看角度观看测试显示面板的测试区域时，所述测试区域对应产生的色偏信息的步骤具体包括：
    确定观看所述测试区域时的观看视角，以及所述测试区域对应的弯曲角度，所述弯曲角度包括：所述测试区域对应的弯曲表面的中间切平面，与所述测试平面显示区域对应的平面之间所成的角度；
    根据所述观看视角与所述弯曲角度，得到所述第一观看角度；
    获取以该第一观看角度观看所述测试区域时，所述测试区域对应产生的 色偏信息。
  8. 根据权利要求7所述的色偏补偿方法，其中，所述根据所述观看视角与所述弯曲角度，得到所述第一观看角度的步骤具体包括：
    将所述观看视角与所述弯曲角度相加，得到所述第一观看角度。
  9. 根据权利要求8所述的色偏补偿方法，其中，当所述测试区域包括所述测试平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
  10. 根据权利要求8所述的色偏补偿方法，其中，当所述测试区域包括所述测试曲面显示区域时，确定观看所述测试曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
  11. 一种显示面板，所述显示面板的目标区域内的至少部分第二亚像素单元具有目标开口率，以使以第一观看角度观看所述目标区域时，该目标区域内不同颜色的亚像素单元对应的亮度衰减比例相同，改善以所述第一观看角度观看所述目标区域时，该目标区域产生的色偏现象。
  12. 根据权利要求11所述的显示面板，其中，所述显示面板包括像素界定层，所述像素界定层限定出多个开口区，所述显示面板中的亚像素单元一一对应设置在所述开口区内；所述像素界定层在所述目标区域内限定的至少部分开口区具有目标尺寸，使形成在所述至少部分开口区内的所述至少部分第二亚像素单元具有目标开口率。
  13. 根据权利要求11所述的显示面板，其中，所述目标区域内至少包括红色亚像素单元、绿色亚像素单元和蓝色亚像素单元；
    位于所述目标区域内的红色亚像素单元具有所述目标开口率；或，
    位于所述目标区域内的绿色亚像素单元具有所述目标开口率；或，
    位于所述目标区域内的蓝色亚像素单元具有所述目标开口率。
  14. 根据权利要求11～13中任一项所述的显示面板，其中，所述显示面板包括目标平面显示区域和目标曲面显示区域，所述目标区域包括所述目标平面显示区域或所述目标曲面显示区域，
    所述第一观看角度包括：观看所述目标区域时的观看视角与所述目标区域对应的弯曲角度之和，所述弯曲角度为：所述目标区域对应的弯曲表面的 中间切平面，与所述目标平面显示区域对应的平面之间所成的角度。
  15. 根据权利要求14所述的显示面板，其中，当所述目标区域包括所述目标平面显示区域时，所述弯曲角度为0度，所述第一观看角度等于所述观看视角。
  16. 根据权利要求14所述的显示面板，其中，当所述目标区域包括所述目标曲面显示区域时，确定观看所述目标曲面显示区域时的观看视角为0度，所述第一观看角度等于所述弯曲角度。
  17. 一种显示装置，包括如权利要求11～16中任一项所述的显示面板。
PCT/CN2019/093623 2019-06-28 2019-06-28 色偏补偿方法、显示面板、显示装置 WO2020258230A1 (zh)

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