WO2020107648A1 - 视角补偿查找表的处理方法及显示装置的驱动方法 - Google Patents

视角补偿查找表的处理方法及显示装置的驱动方法 Download PDF

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Publication number
WO2020107648A1
WO2020107648A1 PCT/CN2019/070314 CN2019070314W WO2020107648A1 WO 2020107648 A1 WO2020107648 A1 WO 2020107648A1 CN 2019070314 W CN2019070314 W CN 2019070314W WO 2020107648 A1 WO2020107648 A1 WO 2020107648A1
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Prior art keywords
sub
bit
grayscale
bit sub
gray scale
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PCT/CN2019/070314
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English (en)
French (fr)
Inventor
关晓亮
吴宇
王耿
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深圳市华星光电半导体显示技术有限公司
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Publication of WO2020107648A1 publication Critical patent/WO2020107648A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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] using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix

Definitions

  • the present invention relates to the field of display technology, and in particular, to a processing method of a viewing angle compensation lookup table and a driving method of a display device.
  • the flat display device has many advantages such as a thin body, power saving, no radiation, etc., and has been widely used.
  • the existing flat display devices mainly include liquid crystal display devices (Liquid Crystal Display, LCD) and organic light emitting diode display devices (Organic Light Emitting Display, OLED).
  • liquid crystal displays which include a liquid crystal display panel and a backlight module.
  • the working principle of a liquid crystal display panel is to infuse liquid crystal molecules between a thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate) and a color filter (CF) substrate, and apply them separately on the two substrates
  • the pixel voltage and the common voltage control the rotation direction of the liquid crystal molecules by the electric field formed between the pixel voltage and the common voltage, so as to transmit the light of the backlight module to generate a picture.
  • the internal modules of the timing controller mostly use 12 bits for data processing, and the processed data is transmitted downward with 12 bits, but the source drivers that receive data on the display panel are currently mostly only It adapts to 8-bit data. Therefore, in order to realize the transmission and utilization of data, in the technology, 12-bit data is down-processed by a dither module to be converted into 8-bit data and transmitted to the source driver. In this way, an 8-bit panel, that is, a panel with 256-level brightness, can display a display effect similar to a 12-bit, that is, 4096-level brightness.
  • the timing controller is also provided with a viewing angle compensation module (VAC).
  • VAC viewing angle compensation module
  • the data processing and look-up table of the viewing angle compensation module are both 12-bit forms, using light and dark
  • Two 12-bit actual gray scales are equivalent to form an 8-bit target gray scale.
  • the display device of this architecture is under the visually sensitive low gray scale, such as 10 to 30 gray scales among 256 gray scales. , The panel will have flashing vertical stripes.
  • An object of the present invention is to provide a processing method of a viewing angle compensation lookup table, which can eliminate flickering vertical stripes that appear when a display device displays a pure grayscale screen when the display device is driven, and improve display quality.
  • Another object of the present invention is to provide a driving method of a display device, which can eliminate flickering vertical stripes that appear when the display device displays a pure grayscale screen, and improve the display quality.
  • the present invention first provides a method for processing a viewing angle compensation lookup table, including the following steps:
  • Step S1 providing an original viewing angle compensation look-up table;
  • the original viewing angle compensation look-up table includes a plurality of 12-bit sub-grayscale groups respectively corresponding to a plurality of preset standard 8-bit grayscales, each 12-bit sub-grayscale group It includes a first 12-bit sub-gray scale and a second 12-bit sub-gray scale, where n is a positive integer;
  • Step S2 Perform bit-down processing on the original viewing angle compensation look-up table to obtain an initial processing viewing angle compensation look-up table;
  • the initial processing viewing angle compensation look-up table includes multiple initial processing 8 bits corresponding to multiple standard 8 bit gray levels, respectively
  • Sub-grayscale group each initial processing 8-bit sub-grayscale group includes a first 8-bit sub-grayscale and a second 8-bit sub-grayscale;
  • Step S3 Adjust the first 8-bit sub-grayscale and/or the second 8-bit sub-grayscale in each initial-process 8-bit sub-grayscale group of the initial-process viewing angle compensation look-up table to make the two equal, and complete the processing
  • the viewing angle compensation look-up table of the processing includes multiple completed 8-bit sub-grayscale groups corresponding to multiple standard 8-bit grayscales respectively, and each completed 8-bit sub-grayscale group includes two equal The actual 8-bit sub-grayscale.
  • the number of 12-bit sub-grayscale groups corresponding to the same standard 8-bit grayscale is 3, which are a red 12-bit sub-grayscale group, a green 12-bit sub-grayscale group, and a blue 12bit Sub-grayscale group.
  • the number of the multiple standard 8-bit gray scales is 256, the multiple standard 8-bit gray scales increase in sequence, the smallest standard 8-bit gray scale among the multiple standard 8-bit gray scales is 0, and the maximum standard 8-bit gray scale Is 255, and the difference between two standard 8-bit gray levels adjacent to any value is 1.
  • step S3 the first 8-bit sub-grayscale of each pre-processed 8-bit sub-grayscale group of the pre-processed viewing angle compensation look-up table is adjusted to the second of the pre-processed 8-bit sub-grayscale group.
  • the 8-bit sub-gray scales are equal.
  • step S3 the first 8 of the 8-bit sub-grayscale group of each initial processing of the initial processing viewing angle compensation look-up table
  • the bit sub-gray scale is adjusted to be equal to the first 8-bit sub-gray scale in the preliminary 8-bit sub-gray scale group.
  • the present invention provides a processing method of a view compensation lookup table, including the following steps:
  • Step S1 Provide an original viewing angle compensation look-up table;
  • the original viewing angle compensation look-up table includes a plurality of 12-bit sub-grayscale groups respectively corresponding to a plurality of preset standard 8-bit grayscales, each of the 12-bit sub-grayscale groups It includes a first 12-bit sub-gray scale and a second 12-bit sub-gray scale, where n is a positive integer;
  • Step S2 Perform bit reduction processing on the original viewing angle compensation look-up table to obtain an initial processing viewing angle compensation look-up table;
  • the initial processing viewing angle compensation look-up table includes multiple initial processing 8 bits corresponding to multiple standard 8 bit gray levels, respectively
  • Sub-grayscale group each initial processing 8-bit sub-grayscale group includes a first 8-bit sub-grayscale and a second 8-bit sub-grayscale;
  • Step S3 Adjust the first 8-bit sub-grayscale and/or the second 8-bit sub-grayscale in each initial-process 8-bit sub-grayscale group of the initial-processing viewing angle compensation look-up table to make the two equal, and complete the processing
  • the viewing angle compensation look-up table of the processing includes multiple completed 8-bit sub-grayscale groups corresponding to multiple standard 8-bit grayscales respectively, and each completed 8-bit sub-grayscale group includes two equal Actual 8-bit sub-gray scale;
  • the number of 12-bit sub-gray scale groups corresponding to the same standard 8-bit gray scale is 3, which are red 12-bit sub-gray scale group and green 12-bit sub-gray scale group respectively A gray scale group and a blue 12-bit sub-gray scale group;
  • the number of the multiple standard 8-bit gray scales is 256, the multiple standard 8-bit gray scales increase sequentially, and the
  • the present invention also provides a driving method of a display device, including the following steps:
  • Step S10 Provide a display device; the display device includes a plurality of sub-pixel groups arranged in an array;
  • Step S20 Obtain the processed perspective compensation look-up table by using the processing method of the perspective compensation look-up table described above;
  • Step S30 The display device receives a plurality of target 12-bit gray levels corresponding to the plurality of sub-pixel groups, and performs bit reduction processing on the plurality of target 12-bit gray levels to generate a plurality of target 8-bit gray levels corresponding to the plurality of sub-pixel groups. ;
  • Step S40 Obtain a plurality of actual 8-bit sub-gray scales respectively corresponding to a plurality of target 8-bit gray scales by using the completed processing angle compensation look-up table;
  • Step S50 Use a plurality of actual 8-bit sub-grayscales to respectively drive a plurality of sub-pixel groups of the display device for display [0028]
  • Each sub-pixel group includes a plurality of sub-pixels arranged in m rows and m columns, where m is a positive integer multiple of 4;
  • the step S50 is specifically: judging a plurality of digits after the decimal point showing 8-bit gray scale; when the digit after the decimal point of an actual 8-bit sub-gray scale is 0, making all the corresponding sub-pixel groups
  • the sub-pixels display the actual 8-bit sub-grayscale and maintain the preset duration of p frames, where p is a positive integer multiple of 4; when the number after the decimal point of an actual 8-bit sub-grayscale is 25, the pre-p Within the preset duration of each frame of the set duration, there are m/4 sub-pixels in each row and each column of the corresponding sub-pixel group to display the value after the actual 8-bit sub-grayscale is rounded up plus 1 and the remaining sub-pixels Display the actual 8bk sub-grayscale rounded value, and within the preset duration of p frames, each sub-pixel displays the actual 8bit sub-grayscale rounded value plus 1 for the duration of p/4 frames Preset duration; when the number after the decimal
  • m is 4 or 8
  • the display device is a liquid crystal display device or a light emitting diode display device.
  • the processing method of the viewing angle compensation look-up table of the present invention performs bit reduction processing on the original viewing angle compensation look-up table and the first processing of the 8-bit sub-grayscale group of each initial processing of the initial processing viewing angle compensation look-up table At least one of the second 8-bit sub-gray scales is adjusted so that the two are equal to obtain a processed viewing angle compensation look-up table.
  • the display device receives a plurality of 12-bit gray scales corresponding to multiple sub-pixel groups, respectively.
  • the 12bit gray scale performs bit reduction processing to generate multiple targets 8bit gray scale.
  • the viewing angle compensation look-up table acquires multiple actual 8-bit sub-gray levels corresponding to multiple target 8-bit gray levels and uses multiple actual 8-bit sub-gray levels to drive multiple sub-pixel groups of the display device for display, which can eliminate the display device from displaying pure
  • the flickering vertical stripes appearing in the grayscale picture improve the display quality.
  • the driving method of the display device of the present invention can eliminate the flickering vertical stripes that appear when the display device displays a pure grayscale picture, and improve the display quality.
  • FIG. 1 is a flowchart of a processing method of a viewing angle compensation lookup table of the present invention
  • FIG. 2 is a flowchart of a driving method of a display device of the present invention.
  • FIG. 3 is a corresponding sub-pixel group in the preset duration of four frames when the number after the decimal point of an actual 8-bit sub-gray scale is 0 in step S50 of an embodiment of the driving method of the display device of the present invention
  • FIG. 4 is a driving method of the display device according to an embodiment of the present invention. In step S50, when the number after the decimal point of an actual 8-bit sub-gray scale is 25, the corresponding sub-pixel group is preset in four frames.
  • FIG. 5 is a schematic diagram of a display device driving method according to an embodiment of the present invention.
  • step S50 when the number after the decimal point of an actual 8-bit sub-gray scale is 5, the corresponding sub-pixel group is four.
  • FIG. 6 is a corresponding sub-pixel when the number after the decimal point of an actual 8-bit sub-gray scale is 75 in step S50 of an embodiment of the driving method of the display device of the present invention;
  • FIG. Schematic diagram of the group display in the four-frame preset duration. Invention Example
  • the present invention provides a processing method of a viewing angle compensation lookup table, which includes the following steps: [0044] Step S1: Provide an original viewing angle compensation lookup table.
  • the original viewing angle compensation look-up table includes a plurality of 12-bit sub-grayscale groups respectively corresponding to a plurality of preset standard 8-bit grayscales, and each 12-bit sub-grayscale group includes a -12th sub-grayscale and a second 12bit Sub-gray scale, where n is a positive integer.
  • the number of 12bi grayscale groups corresponding to the same standard 8bit grayscale is 3, which are a red 12bit sub grayscale group, a green 12bit sub grayscale group and Blue 12bit sub-grayscale group.
  • the first 12bi gray scale and the second 12bi gray scale in the red 12bi gray scale group are the first red 12bit sub gray scale and the second red 12bit sub gray scale, respectively, and the first 12bit in the green 12bit sub gray scale group
  • the sub-gray scale and the second 12-bit sub-gray scale are the first green 12-bit sub-gray scale and the second green 12-bit sub-gray scale
  • the first 12-bit sub-gray scale and the second 12-bit sub-gray scale in the blue 12-bit sub-gray scale group They are the first blue 12-bit sub-gray scale and the second blue 12-bit sub-gray scale.
  • the number of the multiple standard 8-bit gray scales is 256
  • the multiple standard 8-bit gray scales increase in sequence
  • the smallest standard 8-bit gray scale among the multiple standard 8-bit gray scales is 0
  • the maximum standard 8-bit gray scale The gray level is 255
  • the difference between two standard 8-bit gray levels adjacent to any value is 1.
  • the original perspective compensation look-up table may be the original perspective compensation look-up table shown in Table 1:
  • the primary processing viewing angle compensation look-up table includes a plurality of primary processing 8-bit sub-grayscale groups corresponding to a plurality of standard 8-bit grayscales respectively, and each primary processing 8-bit sub-grayscale group includes a first 8-bit sub-grayscale and a first Two 8bit sub-grayscale.
  • the number of initial processing 8-bit sub-grayscale groups corresponding to the same standard 8-bit gray scale is also 3, which are red initial processing 8-bit sub-gray Level group, green initial processing 8bit sub-grayscale group and blue initial processing 8bit sub-grayscale group.
  • the first 8-bit sub-gray scale and the second 8-bit sub-gray scale in the red preliminary processing 8-bit sub-gray scale group are the first red 8-bit sub-gray scale and the second red 8-bit sub-gray scale, respectively, and the green pre-processing 8-bit sub-gray scale group
  • the first 8bU sub-gray scale and the second 8bU sub-gray scale are A green 8-bit sub-gray scale and a second green 8-bit sub-gray scale
  • the first 8-bit sub-gray scale and the second 8-bit sub-gray scale in the blue preliminary processing 8-bit sub-gray scale group are the first blue 8-bit sub-gray scale and The second blue 8bit sub-grayscale.
  • the initial viewing angle compensation lookup table may be the initial processing viewing angle compensation lookup table shown in Table 2:
  • Step S3. Adjust the first 8-bit sub-grayscale and/or the second 8-bit sub-grayscale in each initial-processing 8-bit sub-grayscale group of the initial-processing angle-of-view compensation look-up table to make the two equal, and obtain the processed perspective compensation
  • the completed processing perspective compensation look-up table includes multiple completed 8-bit sub-grayscale groups corresponding to multiple standard 8-bit grayscales respectively, and each completed 8-bit sub-grayscale group includes two equal actual 8-bit sub-grayscale groups Child gray scale.
  • the first 8-bit sub-grayscale in each initial-process 8-bit sub-grayscale group of the initial-processing viewing angle compensation look-up table may be adjusted to the initial 8-bit sub-grayscale group
  • the second 8-bit sub-gray scale in the first processing is equal to the second 8-bit sub-gray scale in each initial processing 8-bit sub-gray scale group of the initial processing viewing angle compensation look-up table to be the same as that in the initial 8-bit sub-gray scale group.
  • the first 8-bit sub-gray scales are equal.
  • the number of completed 8-bit sub-grayscale groups corresponding to the same standard 8-bit grayscale is also 3, which are red completed 8-bit sub-grayscale Level group, green finish processing 8-bit sub-gray scale group and blue finish processing 8-bit sub-gray scale group.
  • An equal actual 8-bit sub-gray scale is the first actual green 8-bit sub-gray scale and the second actual green 8-bit sub-gray scale.
  • the initial viewing angle compensation lookup table may be the initial processing viewing angle compensation lookup table shown in Table 2: [0060] Table 3. Initial Processing Angle Compensation Lookup Table
  • the original viewing angle compensation look-up table is subjected to bit reduction processing and the first processing of the first processing 8-bit sub-grayscale group of the viewing angle compensation look-up table is first. At least one of the second 8-bit sub-gray scales is adjusted so that the two are equal to obtain the processed viewing angle compensation look-up table. Therefore, in conjunction with the embodiments shown in FIG. 3 to FIG.
  • the display device When the display device is driven, the display device has a plurality of sub-pixel groups 10, each sub-pixel group 10 has 16 sub-pixels 11 arranged in a 4x4, each sub-pixel group 10 is located in odd rows and odd columns and even rows and even columns
  • the pixel 11 is a high-gray-scale sub-pixel.
  • the pixels 11 in the odd-numbered rows and the even-numbered columns and the even-numbered rows in the odd-numbered columns are degraded gray-scale sub-pixels.
  • the display device receives multiple target 12-bit gray levels corresponding to the multiple sub-pixel groups 10, respectively.
  • each sub-pixel 11 displays the value incremented by one after the entire sub-8bit gray scale actually taken long a duration are preset, see Figure 5, when an actual number after the decimal gray level sub 8b it is 5:00, then Within the preset duration of each frame with a preset duration of 4 frames, there are 2 subpixels 11 in each row and column in the corresponding subpixel group 10, showing that the actual 8-bit sub-grayscale value is rounded up plus 1 and the rest Of sub-pixels 11 display the rounded value of the actual 8-bit sub-grayscale, and within the preset duration of 4 frames, each
  • each sub-pixel 11 displays the actual 8-bit sub-grayscale rounded value is 1 frame preset duration, because in each sub-pixel group 10, whether it is a high-gray-scale sub-pixel or
  • the gray scale sub-pixels are displayed based on the conversion of the algorithm corresponding to the number of digits after the decimal point of the same actual 8-bit sub-gray scale, so it can eliminate the appearance of the display device when displaying a pure gray scale screen.
  • the flickering vertical stripes enhance the display quality.
  • the present invention also provides a driving method of a display device, including the following steps:
  • Step S10 Provide a display device.
  • the display device includes a plurality of sub-pixel groups 10 arranged in an array.
  • each sub-pixel group 10 includes a plurality of sub-pixels 11 arranged in m rows and m columns, where m is a positive integer multiple of 4.
  • the sub-pixels 11 located in the odd-numbered rows, odd-numbered columns, and even-numbered rows and even-numbered columns are high-gray-scale subpixels
  • the pixels 11 located in the odd-numbered even-numbered columns, and even-numbered rows and odd-numbered columns are the grayscale sub-pixels.
  • the display device may be a commonly used flat display device such as a liquid crystal display device or a light emitting diode display device.
  • Step S20 Use the processing method of the above-mentioned viewing angle compensation lookup table to obtain the processed viewing angle compensation lookup table. The specific steps of obtaining the completed view compensation look-up table will not be repeated here.
  • Step S30 The display device receives a plurality of target 12-bit gray levels corresponding to the plurality of sub-pixel groups 10 respectively, and performs bit reduction processing on the plurality of target 12-bit gray levels to generate a plurality of targets 8 corresponding to the plurality of sub-pixel groups 10, respectively. bit grayscale.
  • Step S40 Using the completed viewing angle compensation look-up table to obtain multiple actual 8-bit sub-gray levels corresponding to multiple target 8-bit gray levels, respectively.
  • Step S50 Use a plurality of actual 8-bit sub-grayscales to respectively drive a plurality of sub-pixel groups 10 of the display device for display.
  • the step S50 is specifically: judging a plurality of digits after displaying 8-bit gray scale decimal point.
  • each sub-pixel 11 in the corresponding sub-pixel group 10 displays the actual 8-bit sub-gray scale and maintain the preset duration of p frames, where p is 4 A positive integer multiple of; when the number after the decimal point of an actual 8-bit sub-gray scale is 25, within each frame preset time of each frame of the preset time of p frames, in each row and column of the corresponding sub-pixel group 10 There are m/4 sub-pixels 11 showing the actual 8-bit sub-grayscale rounded value plus 1 and the remaining sub-pixels 11 showing the actual 8-bit sub-grayscale rounded value, and within the preset duration of p frames , each sub-pixel 11 displays the actual long-duration sub 8bit gray scale values take the whole force of port 1 are p / 4 preset frame; when the actual numbers after a decimal point 8b it is sub-grayscale 5 , When there are m/2 sub-pixels 11 in each row
  • FIG. 3 when a decimal point of an actual 8-bit sub-gray scale When the number is 0, so that all sub-pixels 11 in the corresponding sub-pixel group 10 display the actual 8-bit sub-grayscale and maintain the preset duration of 4 frames, please refer to FIG.
  • each frame of the preset duration of 4 frames is within the set duration, there are 2 sub-pixels 11 in each row and column of the corresponding sub-pixel group 10 showing the value after the actual 8-bit sub-grayscale is rounded up plus 1 and the remaining sub-pixels 11 showing the actual 8-bit sub-gray
  • the duration of the actual 8-bit sub-grayscale rounded value plus 1 is the preset duration of 2 frames, please refer to FIG.
  • each sub-pixel 11 shows that the actual 8-bit sub-grayscale rounded value is 1 frame preset duration .
  • each sub-pixel group 10 whether it is a high gray scale sub-pixel or a gray scale sub-pixel
  • the displayed gray scale is based on It is obtained by converting the algorithm corresponding to the number of digits after the decimal point of the same actual 8-bit sub-gray scale, so it can eliminate the flickering vertical stripes that appear when the display device displays a pure gray-scale picture, and improve the display quality.
  • the processing method of the viewing angle compensation look-up table of the present invention performs bit reduction processing on the original viewing angle compensation look-up table and the first in each 8-bit sub-grayscale group of each initial processing of the initial processing viewing angle compensation look-up table , At least one of the second 8-bit sub-gray scales is adjusted so that the two are equal to obtain the processed viewing angle compensation look-up table.
  • the display device receives multiple target 12-bit gray scales corresponding to multiple sub-pixel groups, respectively.
  • the target 12-bit gray scale is subjected to bit reduction processing to generate multiple target 8-bit gray scales, and the processed perspective compensation look-up table is used to obtain multiple actual 8-bit sub gray scales corresponding to the multiple target 8-bit gray scales respectively, and the multiple actual 8-bit gray scales are used.
  • the gray scale separately drives multiple sub-pixel groups of the display device for display, which can eliminate flickering vertical stripes that appear when the display device displays a pure gray scale picture, and improve display quality.
  • the driving method of the display device of the present invention can eliminate the flickering vertical stripes that appear when the display device displays a pure grayscale picture, and improve the display quality.

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Abstract

一种视角补偿查找表的处理方法及显示装置的驱动方法。视角补偿查找表的处理方法对原始视角补偿查找表进行降比特处理,并对初处理视角补偿查找表的每一初处理8bit子灰阶组中的第一、第二8bit子灰阶中的至少一个进行调整使两者相等,得到完成处理的视角补偿查找表,驱动时,显示装置接收分别与多个子像素组(10)对应的多个目标12bit灰阶,对多个目标12bit灰阶进行降比特处理生成多个目标8bit灰阶,利用完成处理的视角补偿查找表获取分别与多个目标8bit灰阶对应的多个实际8bit子灰阶,并利用多个实际8bit子灰阶分别驱动显示装置的多个子像素组(10)进行显示,能够消除显示装置在显示纯灰阶画面时出现的闪烁竖纹,提升显示品质。

Description

说明书 发明名称; :视角补偿查找表的处理方法及显示装置的驱动方法 技术领域
[0001] 本发明涉及显示技术领域, 尤其涉及一种视角补偿查找表的处理方法及显示装 置的驱动方法。
背景技术
[0002] 平面显示装置具有机身薄、 省电、 无辐射等众多优点, 得到了广泛的应用。 现 有的平面显示装置主要包括液晶显示装置 (Liquid Crystal Display, LCD) 及有 机发光二极管显示装置 (Organic Light Emitting Display, OLED) 。
[0003] 5见有市场上的液晶显示器大部分为背光型液晶显示器, 其包括液晶显示面板及 背光模组 (backlight module) 。 液晶显示面板的工作原理是在薄膜晶体管阵列 基板 (Thin Film Transistor Array Substrate , TFT Array Substrate) 与彩色滤光片 (Color Filter, CF) 基板之间灌入液晶分子, 并在两片基板上分别施加像素电压 和公共电压, 通过像素电压和公共电压之间形成的电场控制液晶分子的旋转方 向, 以将背光模组的光线透射出来产生画面。
[0004] 为提高数据处理精度, 时序控制器 (TCON) 内部模块多以 12bit做数据处理, 处理完的数据以 12bit向下传输, 但显示面板接收数据的源极驱动器 (source driver) 目前多仅适配 8bit的数据, 因此, 为了实现数据的传输及利用, 5见有技术 中会通过一个抖动 (dither) 模块对 12bit的数据进行降 bit处理而转换为 8bit的数 据后传输至源极驱动器, 这样可以使得 8bit的面板也即具有 256级亮度的面板呈 现出类似 12bit也即 4096级亮度的显示效果。
[0005] 5见有技术中, 为提升显示装置的侧视视角, 时序控制器内部还设有视角补偿模 块 (VAC) , 该视角补偿模块的数据处理和查找表均为 12bit形式, 利用亮暗两 个 12bit的实际灰阶等效形成一 8bit的目标灰阶, 此种架构的显示装置在视觉敏感 低灰阶, 例如 256灰阶其中的 10~30灰阶下, 整帧显示纯灰阶时, 面板会出现闪 烁的竖纹。
发明概述 技术问题
[0006] 本发明的目的在于提供一种视角补偿查找表的处理方法, 应用于显示装置驱动 时能够消除显示装置在显示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。
[0007] 本发明的另一目的在于提供一种显示装置的驱动方法, 能够消除显示装置在显 示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。
问题的解决方案
技术解决方案
[0008] 为实现上述目的, 本发明首先提供一种视角补偿查找表的处理方法, 包括如下 步骤:
[0009] 步骤 S1、 提供原始视角补偿查找表; 所述原始视角补偿查找表包括分别与多个 预设的标准 8bit灰阶对应的多个 12bit子灰阶组, 每一 12bit子灰阶组均包括一第一 12bit子灰阶及一第二 12bit子灰阶, 其中, n为正整数;
[0010] 步骤 S2、 对所述原始视角补偿查找表进行降比特处理得到初处理视角补偿查找 表; 所述初处理视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个初处理 8bit子灰阶组, 每一初处理 8bit子灰阶组均包括一第一 8bit子灰阶及一第二 8bit子 灰阶;
[0011] 步骤 S3、 对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8bit子灰 阶和 /或第二 8bit子灰阶进行调整使两者相等, 得到完成处理的视角补偿查找表, 所述完成处理的视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个完成处 理 8bit子灰阶组, 每一完成处理 8bit子灰阶组均包括两个相等的实际 8bit子灰阶。
[0012] 所述原始视角补偿查找表中, 与同一标准 8bit灰阶对应的 12bit子灰阶组的数量 为 3个, 分别为红色 12bit子灰阶组、 绿色 12bit子灰阶组及蓝色 12bit子灰阶组。
[0013] 所述多个标准 8bit灰阶的数量为 256个, 多个标准 8bit灰阶依次增大, 多个标准 8 bit灰阶中最小的标准 8bit灰阶为 0, 最大的标准 8bit灰阶为 255 , 任意数值相邻的 两个标准 8bit灰阶的差值均为 1。
[0014] 所述步骤 S3中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8 bit子灰阶调整至与该初处理 8bit子灰阶组中的第二 8bit子灰阶相等。
[0015] 所述步骤 S3中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第二 8 bit子灰阶调整至与该初处理 8bit子灰阶组中的第一 8bit子灰阶相等。
[0016] 本发明提供一种视角补偿查找表的处理方法, 包括如下步骤:
[0017] 步骤 S1、 提供原始视角补偿查找表; 所述原始视角补偿查找表包括分别与多个 预设的标准 8bit灰阶对应的多个 12bit子灰阶组, 每一 12bit子灰阶组均包括一第一 12bit子灰阶及一第二 12bit子灰阶, 其中, n为正整数;
[0018] 步骤 S2、 对所述原始视角补偿查找表进行降比特处理得到初处理视角补偿查找 表; 所述初处理视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个初处理 8bit子灰阶组, 每一初处理 8bit子灰阶组均包括一第一 8bit子灰阶及一第二 8bit子 灰阶;
[0019] 步骤 S3、 对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8bit子灰 阶和 /或第二 8bit子灰阶进行调整使两者相等, 得到完成处理的视角补偿查找表, 所述完成处理的视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个完成处 理 8bit子灰阶组, 每一完成处理 8bit子灰阶组均包括两个相等的实际 8bit子灰阶; [0020] 所述原始视角补偿查找表中, 与同一标准 8bit灰阶对应的 12bit子灰阶组的数量 为 3个, 分别为红色 12bit子灰阶组、 绿色 12bit子灰阶组及蓝色 12bit子灰阶组; [0021] 所述多个标准 8bit灰阶的数量为 256个, 多个标准 8bit灰阶依次增大, 多个标准 8 bit灰阶中最小的标准 8bit灰阶为 0, 最大的标准 8bit灰阶为 255 , 任意数值相邻的 两个标准 8bit灰阶的差值均为 1。
[0022] 本发明还提供一种显示装置的驱动方法, 包括如下步骤:
[0023] 步骤 S10、 提供显示装置; 所述显示装置包括阵列排布的多个子像素组;
[0024] 步骤 S20、 采用上述的视角补偿查找表的处理方法获取完成处理的视角补偿查 找表;
[0025] 步骤 S30、 显示装置接收分别与多个子像素组对应的多个目标 12bit灰阶, 对多 个目标 12bit灰阶进行降比特处理生成分别与多个子像素组对应的多个目标 8bit灰 阶;
[0026] 步骤 S40、 利用所述完成处理的视角补偿查找表获取分别与多个目标 8bit灰阶对 应的多个实际 8bit子灰阶;
[0027] 步骤 S50、 利用多个实际 8bit子灰阶分别驱动显示装置的多个子像素组进行显示 [0028] 每一子像素组均包括呈 m行 m列排布的多个子像素, 其中, m为 4的正整数倍;
[0029] 所述步骤 S50具体为: 对多个显示 8bit灰阶的小数点后的数字进行判定; 当一实 际 8bit子灰阶的小数点后的数字为 0时, 使得对应的子像素组中的所有子像素均 显示该实际 8bit子灰阶并维持 p帧预设时长, 其中, p为 4的正整数倍; 当一实际 8 bit子灰阶的小数点后的数字为 25时, 则在 p帧预设时长的每一帧预设时长内, 对 应的子像素组中每一行及每一列中有 m/4个子像素显示该实际 8bit子灰阶取整后 的值加 1的值且其余的子像素显示该实际 8bk子灰阶取整后的值, 且在 p帧预设时 长内, 每一子像素显示该实际 8bit子灰阶取整后的值加 1的值的时长均为 p/4帧预 设时长; 当一实际 8bi仔灰阶的小数点后的数字为 5时, 则在 p帧预设时长的每一 帧预设时长内, 对应的子像素组中每一行及每一列中有 m/2个子像素显示该实际 8bit子灰阶取整后的值加 1的值且其余的子像素显示该实际 8bit子灰阶取整后的值 , 且在 p帧预设时长内, 每一子像素显示该实际 8bit子灰阶取整后的值加 1的值的 时长均为 p/2帧预设时长; 当一实际 8bi仔灰阶的小数点后的数字为 75时, 贝在 p 帧预设时长的每一帧预设时长内, 对应的子像素组中每一行及每一列中有 m/4个 子像素显示该实际 8bit子灰阶取整后的值且其余的子像素显示该实际 8bit子灰阶 取整后的值加 1的值, 且在 p帧预设时长内, 每一子像素显示该实际 8bit子灰阶取 整后的值的时长均为 p/4帧预设时长。
[0030] m为 4或 8
[0031] p为 4
[0032] 所述显示装置为液晶显示装置或发光二极管显示装置。
发明的有益效果
有益效果
[0033] 本发明的有益效果: 本发明的视角补偿查找表的处理方法对原始视角补偿查找 表进行降比特处理并对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第 第二 8bit子灰阶中的至少一个进行调整使两者相等得到完成处理的视角补偿 查找表, 驱动时, 显示装置接收分别与多个子像素组对应的多个目标 12bit灰阶 , 对多个目标 12bit灰阶进行降比特处理生成多个目标 8bit灰阶, 利用完成处理的 视角补偿查找表获取分别与多个目标 8bit灰阶对应的多个实际 8bit子灰阶并利用 多个实际 8bit子灰阶分别驱动显示装置的多个子像素组进行显示, 能够消除显示 装置在显示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。 本发明的显示装置 的驱动方法能够消除显示装置在显示纯灰阶画面时出现的闪烁竖纹, 提升显示 品质。
对附图的简要说明
附图说明
[0034] 为了能更进一步了解本发明的特征以及技术内容, 请参阅以下有关本发明的详 细说明与附图, 然而附图仅提供参考与说明用, 并非用来对本发明加以限制。
[0035] 附图中,
[0036] 图 1为本发明的视角补偿查找表的处理方法的流程图;
[0037] 图 2为本发明的显示装置的驱动方法的流程图;
[0038] 图 3为本发明的显示装置的驱动方法的一实施例的步骤 S50中当一实际 8bit子灰 阶的小数点后的数字为 0时对应的子像素组在四帧预设时长中的显示示意图; [0039] 图 4为本发明的显示装置的驱动方法的一实施例的步骤 S50中当一实际 8bit子灰 阶的小数点后的数字为 25时对应的子像素组在四帧预设时长中的显示示意图; [0040] 图 5为本发明的显示装置的驱动方法的一实施例的步骤 S50中当一实际 8bit子灰 阶的小数点后的数字为 5时对应的子像素组在四帧预设时长中的显示示意图; [0041] 图 6为本发明的显示装置的驱动方法的一实施例的步骤 S50中当一实际 8bit子灰 阶的小数点后的数字为 75时对应的子像素组在四帧预设时长中的显示示意图。 发明实施例
本发明的实施方式
[0042] 为更进一步阐述本发明所采取的技术手段及其效果, 以下结合本发明的优选实 施例及其附图进行详细描述。
[0043] 请参阅图 1, 本发明提供一种视角补偿查找表的处理方法, 包括如下步骤: [0044] 步骤 S1、 提供原始视角补偿查找表。 所述原始视角补偿查找表包括分别与多个 预设的标准 8bit灰阶对应的多个 12bit子灰阶组, 每一 12bit子灰阶组均包括一第 —12bit子灰阶及一第二 12bit子灰阶, 其中, n为正整数。 [0045] 具体地, 所述原始视角补偿查找表中, 与同一标准 8bit灰阶对应的 12bi仔灰阶 组的数量为 3个, 分别为红色 12bit子灰阶组、 绿色 12bit子灰阶组及蓝色 12bit子 灰阶组。 红色 12bi仔灰阶组中的第一 12bi仔灰阶及第二 12bi仔灰阶分别为第一 红色 12bit子灰阶及第二红色 12bit子灰阶, 绿色 12bit子灰阶组中的第一 12bit子灰 阶及第二 12bit子灰阶分别为第一绿色 12bit子灰阶及第二绿色 12bit子灰阶, 蓝色 12bit子灰阶组中的第一 12bit子灰阶及第二 12bit子灰阶分别为第一蓝色 12bit子灰 阶及第二蓝色 12bit子灰阶。
[0046] 具体地, 所述多个标准 8bit灰阶的数量为 256个, 多个标准 8bit灰阶依次增大, 多个标准 8bit灰阶中最小的标准 8bit灰阶为 0, 最大的标准 8bit灰阶为 255, 任意 数值相邻的两个标准 8bit灰阶的差值均为 1。
[0047] 具体地, 所述原始视角补偿查找表可以为表 1所示的原始视角补偿查找表:
[0048]
[0049]
[0050] 表 1、 原始视角补偿查找表
[0051]
Figure imgf000008_0002
Figure imgf000008_0001
表。 所述初处理视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个初处理 8bit子灰阶组, 每一初处理 8bit子灰阶组均包括一第一 8bit子灰阶及一第二 8bit子 灰阶。
[0052] 具体地, 所述步骤 S2得到的初处理视角补偿查找表中, 与同一标准 8bit灰阶对 应的初处理 8bit子灰阶组的数量也为 3个, 分别为红色初处理 8bit子灰阶组、 绿 色初处理 8bit子灰阶组及蓝色初处理 8bit子灰阶组。 红色初处理 8bit子灰阶组中 的第一 8bit子灰阶及第二 8bit子灰阶分别为第一红色 8bit子灰阶及第二红色 8bit子 灰阶, 绿色初处理 8bit子灰阶组中的第一 8bU子灰阶及第二 8bU子灰阶分别为第 一绿色 8bit子灰阶及第二绿色 8bit子灰阶, 蓝色初处理 8bit子灰阶组中的第一 8bit 子灰阶及第二 8bit子灰阶分别为第一蓝色 8bit子灰阶及第二蓝色 8bit子灰阶。
[0053] 具体地, 所述初始视角补偿查找表可以为表 2所示的初处理视角补偿查找表:
[0054]
[0055] 表 2、 初处理视角补偿查找表
[0056]
'、55、、、55、 、二、 、 i、3TFfi、:、、、S、 、、]、、 、、:、、、1、、「|、、、、 :、、 數翁 S f | 色働 子 | 色德致乎 色 于 | 色雜#予 色_f f j
Figure imgf000009_0001
步骤 S3、 对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8bit子 灰阶和 /或第二 8bit子灰阶进行调整使两者相等, 得到完成处理的视角补偿查找 表, 所述完成处理的视角补偿查找表包括分别与多个标准 8bit灰阶对应的多个完 成处理 8bit子灰阶组, 每一完成处理 8bit子灰阶组均包括两个相等的实际 8bit子 灰阶。
[0057] 可选地, 所述步骤 S3中, 可以将初处理视角补偿查找表的每一初处理 8bit子灰 阶组中的第一 8bit子灰阶调整至与该初处理 8bit子灰阶组中的第二 8bit子灰阶相 等, 也可以将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第二 8bit子 灰阶调整至与该初处理 8bit子灰阶组中的第一 8bit子灰阶相等。
[0058] 具体地, 所述步骤 S3得到的完成处理的视角补偿查找表中, 与同一标准 8bit灰 阶对应的完成处理 8bit子灰阶组的数量也为 3个, 分别为红色完成 8bit子灰阶组 、 绿色完成处理 8bit子灰阶组及蓝色完成处理 8bit子灰阶组。 红色完成处理 8bit 子灰阶组中的两个相等的实际 8bit子灰阶分别为第一实际红色 8bit子灰阶及第二 实际红色 8bit子灰阶, 绿色完成处理 8bit子灰阶组中的两个相等的实际 8bit子灰 阶分别为第一实际绿色 8bit子灰阶及第二实际绿色 8bit子灰阶, 蓝色完成处理 8bi t子灰阶组中的两个相等的实际 8bit子灰阶分别为第一实际蓝色 8bit子灰阶及第二 实际蓝色 8bit子灰阶。
[0059] 具体地, 所述初始视角补偿查找表可以为表 2所示的初处理视角补偿查找表: [0060] 表 3、 初处理视角补偿查找表
[0061]
Figure imgf000010_0001
需要说明的是, 本发明的视角补偿查找表的处理方法中, 对原始视角补偿查找 表进行降比特处理并对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第 一、 第二 8bit子灰阶中的至少一个进行调整使两者相等得到完成处理的视角补偿 查找表, 从而请结合图 3至图 6所示的实施例, 在利用该完成处理的视角补偿查 找表对显示装置进行驱动时, 显示装置具有多个子像素组 10, 每一子像素组 10 具有呈 4x4排列的 16个子像素 11, 每一子像素组 10中位于奇数行奇数列及偶数行 偶数列的子像素 11为高灰阶子像素, 位于奇数行偶数列及偶数行奇数列的像素 1 1为彳氐灰阶子像素, 显示装置接收分别与多个子像素组 10对应的多个目标 12bit灰 阶, 对多个目标 12bit灰阶进行降比特处理生成分别与多个子像素组 10对应的多 个目标 8bit灰阶, 利用所述完成处理的视角补偿查找表获取分别与多个目标 8bit 灰阶对应的多个实际 8bit子灰阶, 而后利用多个实际 8bit子灰阶分别驱动显示装 置的多个子像素组 10进行显示, 具体为对多个显示 8bit灰阶的小数点后的数字进 行判定, 请参阅图 3 , 当一实际 8bit子灰阶的小数点后的数字为 0时, 使得对应的 子像素组 10中的所有子像素 11均显示该实际 8bit子灰阶并维持 4帧预设时长, 请 参阅图 4, 当一实际 8bit子灰阶的小数点后的数字为 25时, 则在 4帧预设时长的每 一帧预设时长内, 对应的子像素组 10中每一行及每一列中有 1个子像素 11显示该 实际 8bit子灰阶取整后的值加 1的值且其余的子像素 11显示该实际 8bit子灰阶取整 后的值, 且在 4帧预设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值 加 1的值的时长均为 1帧预设时长, 请参阅图 5 , 当一实际 8bit子灰阶的小数点后 的数字为 5时, 则在 4帧预设时长的每一帧预设时长内, 对应的子像素组 10中每 一行及每一列中有 2个子像素 11显示该实际 8bit子灰阶取整后的值加 1的值且其余 的子像素 11显示该实际 8bit子灰阶取整后的值, 且在 4帧预设时长内, 每一子像 素 11显示该实际 8bit子灰阶取整后的值加 1的值的时长均为 2帧预设时长, 请参阅 图 6, 当一实际 8bit子灰阶的小数点后的数字为 75时, 则在 4帧预设时长的每一帧 预设时长内, 对应的子像素组 10中每一行及每一列中有 1个子像素 11显示该实际 8bit子灰阶取整后的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值加 1的 值, 且在 4帧预设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值的时 长均为 1帧预设时长, 由于每一子像素组 10中, 不论是高灰阶子像素还是彳氐灰阶 子像素, 其显示的灰阶均是依据同一个实际 8bit子灰阶的小数点后的位数所对应 的算法进行换算得到的, 因此能够消除显示装置在显示纯灰阶画面时出现的闪 烁竖纹, 提升显示品质。
[0062] 请参阅图 2, 基于同一发明构思, 本发明还提供一种显示装置的驱动方法, 包 括如下步骤:
[0063] 步骤 S10、 提供显示装置。 所述显示装置包括阵列排布的多个子像素组 10。
[0064] 具体地, 每一子像素组 10均包括呈 m行 m列排布的多个子像素 11, 其中, m为 4 的正整数倍。 每一子像素组 10中位于奇数行奇数列及偶数行偶数列的子像素 11 为高灰阶子像素, 位于奇数行偶数列及偶数行奇数列的像素 11为彳氐灰阶子像素
[0065] 具体地, 所述显示装置可以为液晶显示装置或发光二极管显示装置等常用的平 面显示装置。
[0066] 步骤 S20、 采用上述的视角补偿查找表的处理方法获取完成处理的视角补偿查 找表。 在此不再对获取完成处理的视角补偿查找表的具体步骤进行赘述。
[0067] 步骤 S30、 显示装置接收分别与多个子像素组 10对应的多个目标 12bit灰阶, 对 多个目标 12bit灰阶进行降比特处理生成分别与多个子像素组 10对应的多个目标 8 bit灰阶。
[0068] 步骤 S40、 利用所述完成处理的视角补偿查找表获取分别与多个目标 8bit灰阶对 应的多个实际 8bit子灰阶。
[0069] 步骤 S50、 利用多个实际 8bit子灰阶分别驱动显示装置的多个子像素组 10进行 显不。 [0070] 具体地, 所述步骤 S50具体为: 对多个显示 8bit灰阶的小数点后的数字进行判 定。 当一实际 8bit子灰阶的小数点后的数字为 0时, 使得对应的子像素组 10中的 所有子像素 11均显示该实际 8bit子灰阶并维持 p帧预设时长, 其中, p为 4的正整 数倍; 当一实际 8bit子灰阶的小数点后的数字为 25时, 则在 p帧预设时长的每一 帧预设时长内, 对应的子像素组 10中每一行及每一列中有 m/4个子像素 11显示该 实际 8bit子灰阶取整后的值加 1的值且其余的子像素 11显示该实际 8bit子灰阶取整 后的值, 且在 p帧预设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值 力口 1的值的时长均为 p/4帧预设时长; 当一实际 8bit子灰阶的小数点后的数字为 5 时, 则在 p帧预设时长的每一帧预设时长内, 对应的子像素组 10中每一行及每一 列中有 m/2个子像素 11显示该实际 8bit子灰阶取整后的值加 1的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值, 且在 p帧预设时长内, 每一子像素 11显示 该实际 8bit子灰阶取整后的值加 1的值的时长均为 p/2帧预设时长; 当一实际 8bit 子灰阶的小数点后的数字为 75时, 则在 p帧预设时长的每一帧预设时长内, 对应 的子像素组 10中每一行及每一列中有 m/4个子像素 11显示该实际 8bit子灰阶取整 后的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值加 1的值, 且在 p帧预 设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值的时长均为 p/4帧预 设时长。
[0071] 进一步地, 在图 3至图 6所示的实施例中, p为 4, 而 m也为 4, 从而请参阅图 3, 该实施例中, 当一实际 8bit子灰阶的小数点后的数字为 0时, 使得对应的子像素 组 10中的所有子像素 11均显示该实际 8bit子灰阶并维持 4帧预设时长, 请参阅图 4 , 当一实际 8bit子灰阶的小数点后的数字为 25时, 则在 4帧预设时长的每一帧预 设时长内, 对应的子像素组 10中每一行及每一列中有 1个子像素 11显示该实际 8bi t子灰阶取整后的值加 1的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值 , 且在 4帧预设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值加 1的值 的时长均为 1帧预设时长, 请参阅图 5 , 当一实际 8bit子灰阶的小数点后的数字为 5时, 则在 4帧预设时长的每一帧预设时长内, 对应的子像素组 10中每一行及每 一列中有 2个子像素 11显示该实际 8bit子灰阶取整后的值加 1的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值, 且在 4帧预设时长内, 每一子像素 11显示 该实际 8bit子灰阶取整后的值加 1的值的时长均为 2帧预设时长, 请参阅图 6, 当 一实际 8bit子灰阶的小数点后的数字为 75时, 则在 4帧预设时长的每一帧预设时 长内, 对应的子像素组 10中每一行及每一列中有 1个子像素 11显示该实际 8bit子 灰阶取整后的值且其余的子像素 11显示该实际 8bit子灰阶取整后的值加 1的值, 且在 4帧预设时长内, 每一子像素 11显示该实际 8bit子灰阶取整后的值的时长均 为 1帧预设时长。
[0072] 需要说明的是, 本发明的显示装置的驱动方法中, 由于每一子像素组 10中, 不 论是高灰阶子像素还是彳氐灰阶子像素, 其显示的灰阶均是依据同一个实际 8bit子 灰阶的小数点后的位数所对应的算法进行换算得到的, 因此能够消除显示装置 在显示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。
[0073] 综上所述, 本发明的视角补偿查找表的处理方法对原始视角补偿查找表进行降 比特处理并对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一、 第二 8bit子灰阶中的至少一个进行调整使两者相等得到完成处理的视角补偿查找表, 驱动时, 显示装置接收分别与多个子像素组对应的多个目标 12bit灰阶, 对多个 目标 12bit灰阶进行降比特处理生成多个目标 8bit灰阶, 利用完成处理的视角补偿 查找表获取分别与多个目标 8bit灰阶对应的多个实际 8bit子灰阶并利用多个实际 8 bit子灰阶分别驱动显示装置的多个子像素组进行显示, 能够消除显示装置在显 示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。 本发明的显示装置的驱动方 法能够消除显示装置在显示纯灰阶画面时出现的闪烁竖纹, 提升显示品质。
[0074] 以上所述, 对于本领域的普通技术人员来说, 可以根据本发明的技术方案和技 术构思作出其他各种相应的改变和变形, 而所有这些改变和变形都应属于本发 明权利要求的保护范围。

Claims

权利要求书
[权利要求 1] 一种视角补偿查找表的处理方法, 包括如下步骤:
步骤 si、 提供原始视角补偿查找表; 所述原始视角补偿查找表包括分 别与多个预设的标准 8bit灰阶对应的多个 12bit子灰阶组, 每一 12bit子 灰阶组均包括一第一 12bit子灰阶及一第二 12bit子灰阶, 其中, n为正 整数;
步骤 S2、 对所述原始视角补偿查找表进行降比特处理得到初处理视角 补偿查找表; 所述初处理视角补偿查找表包括分别与多个标准 8bit灰 阶对应的多个初处理 8bit子灰阶组, 每一初处理 8bit子灰阶组均包括 一第一 8bit子灰阶及一第二 8bit子灰阶;
步骤 S3、 对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第 一 8bit子灰阶和 /或第二 8bit子灰阶进行调整使两者相等, 得到完成处 理的视角补偿查找表, 所述完成处理的视角补偿查找表包括分别与多 个标准 8bit灰阶对应的多个完成处理 8bit子灰阶组, 每一完成处理 8bit 子灰阶组均包括两个相等的实际 8bit子灰阶。
[权利要求 2] 如权利要求 1所述的视角补偿查找表的处理方法, 其中, 所述原始视 角补偿查找表中, 与同一标准 8bit灰阶对应的 12bit子灰阶组的数量为 3个, 分别为红色 12bit子灰阶组、 绿色 12bit子灰阶组及蓝色 12bit子灰 阶组。
[权利要求 3] 如权利要求 1所述的视角补偿查找表的处理方法, 其中, 所述多个标 准 8bit灰阶的数量为 256个, 多个标准 8bit灰阶依次增大, 多个标准 8bi t灰阶中最小的标准 8bit灰阶为 0, 最大的标准 8bit灰阶为 255, 任意数 值相邻的两个标准 8bit灰阶的差值均为 1。
[权利要求 4] 如权利要求 1所述的视角补偿查找表的处理方法, 其中, 所述步骤 S3 中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8bi t子灰阶调整至与该初处理 8bit子灰阶组中的第二 8bit子灰阶相等。
[权利要求 5] 如权利要求 1所述的视角补偿查找表的处理方法, 其中, 所述步骤 S3 中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第二 8bi t子灰阶调整至与该初处理 8bit子灰阶组中的第一 8bit子灰阶相等。
[权利要求 6] 一种视角补偿查找表的处理方法, 包括如下步骤:
步骤 S1、 提供原始视角补偿查找表; 所述原始视角补偿查找表包括分 别与多个预设的标准 8bit灰阶对应的多个 12bit子灰阶组, 每一 12bit子 灰阶组均包括一第一 12bit子灰阶及一第二 12bit子灰阶, 其中, n为正 整数;
步骤 S2、 对所述原始视角补偿查找表进行降比特处理得到初处理视角 补偿查找表; 所述初处理视角补偿查找表包括分别与多个标准 8bit灰 阶对应的多个初处理 8bit子灰阶组, 每一初处理 8bit子灰阶组均包括 一第一 8bit子灰阶及一第二 8bit子灰阶;
步骤 S3、 对初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第 一 8bit子灰阶和 /或第二 8bit子灰阶进行调整使两者相等, 得到完成处 理的视角补偿查找表, 所述完成处理的视角补偿查找表包括分别与多 个标准 8bit灰阶对应的多个完成处理 8bit子灰阶组, 每一完成处理 8bit 子灰阶组均包括两个相等的实际 8bit子灰阶;
其中, 所述原始视角补偿查找表中, 与同一标准 8bit灰阶对应的 12bit 子灰阶组的数量为 3个, 分别为红色 12bit子灰阶组、 绿色 12bit子灰阶 组及蓝色 12bit子灰阶组;
其中, 所述多个标准 8bit灰阶的数量为 256个, 多个标准 8bit灰阶依次 增大, 多个标准 8bit灰阶中最小的标准 8bit灰阶为 0, 最大的标准 8bit 灰阶为 255 , 任意数值相邻的两个标准 8bit灰阶的差值均为 1。
[权利要求 7] 如权利要求 6所述的视角补偿查找表的处理方法, 其中, 所述步骤 S3 中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第一 8bi t子灰阶调整至与该初处理 8bit子灰阶组中的第二 8bit子灰阶相等。
[权利要求 8] 如权利要求 6所述的视角补偿查找表的处理方法, 其中, 所述步骤 S3 中, 将初处理视角补偿查找表的每一初处理 8bit子灰阶组中的第二 8bi t子灰阶调整至与该初处理 8bit子灰阶组中的第一 8bit子灰阶相等。
[权利要求 9] 一种显示装置的驱动方法, 包括如下步骤: 步骤 S10、 提供显示装置; 所述显示装置包括阵列排布的多个子像素 组;
步骤 S20、 采用如权利要求 1所述的视角补偿查找表的处理方法获取完 成处理的视角补偿查找表;
步骤 S30、 显示装置接收分别与多个子像素组对应的多个目标 12bit灰 阶, 对多个目标 12bit灰阶进行降比特处理生成分别与多个子像素组对 应的多个目标 8bit灰阶;
步骤 S40、 利用所述完成处理的视角补偿查找表获取分别与多个目标 8 bit灰阶对应的多个实际 8bit子灰阶;
步骤 S50、 利用多个实际 8bit子灰阶分别驱动显示装置的多个子像素 组进行显示。
[权利要求 10] 如权利要求 9所述的显示装置的驱动方法, 其中, 每一子像素组均包 括呈 m行 m列排布的多个子像素, 其中, m为 4的正整数倍; 所述步骤 S50具体为: 对多个显示 8bit灰阶的小数点后的数字进行判 定; 当一实际 8bit子灰阶的小数点后的数字为 0时, 使得对应的子像素 组中的所有子像素均显示该实际 8bit子灰阶并维持 p帧预设时长, 其中 , p为 4的正整数倍; 当一实际 8bit子灰阶的小数点后的数字为 25时, 则在 p帧预设时长的每一帧预设时长内, 对应的子像素组中每一行及 每一列中有 m/4个子像素显示该实际 8bit子灰阶取整后的值加 1的值且 其余的子像素显示该实际 8bit子灰阶取整后的值, 且在 p帧预设时长内 , 每一子像素显示该实际 8bit子灰阶取整后的值加 1的值的时长均为 p/ 4帧预设时长; 当一实际 8bi仔灰阶的小数点后的数字为 5时, 则在 p帧 预设时长的每一帧预设时长内, 对应的子像素组中每一行及每一列中 有 m/2个子像素显示该实际 8bit子灰阶取整后的值加 1的值且其余的子 像素显示该实际 8bit子灰阶取整后的值, 且在 p帧预设时长内, 每一子 像素显示该实际 8bit子灰阶取整后的值加 1的值的时长均为 p/2帧预设 时长; 当一实际 8bit子灰阶的小数点后的数字为 75时, 则在 p帧预设时 长的每一帧预设时长内, 对应的子像素组中每一行及每一列中有 m/4 个子像素显示该实际 8bit子灰阶取整后的值且其余的子像素显示该实 际 8bit子灰阶取整后的值加 1的值, 且在 p帧预设时长内, 每一子像素 显示该实际 8bit子灰阶取整后的值的时长均为 p/4帧预设时长。
[权利要求 11] 如权利要求 10所述的显示装置的驱动方法, 其中, m为 4或 8。
[权利要求 12] 如权利要求 10所述的显示装置的驱动方法, 其中, p为 4。
[权利要求 13] 如权利要求 9所述的显示装置的驱动方法, 其中, 所述显示装置为液 晶显示装置或发光二极管显示装置。
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