CN109493800B - Processing method of visual angle compensation lookup table and driving method of display device - Google Patents
Processing method of visual angle compensation lookup table and driving method of display device Download PDFInfo
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- CN109493800B CN109493800B CN201811459013.XA CN201811459013A CN109493800B CN 109493800 B CN109493800 B CN 109493800B CN 201811459013 A CN201811459013 A CN 201811459013A CN 109493800 B CN109493800 B CN 109493800B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
Abstract
The invention provides a processing method of a visual angle compensation lookup table and a driving method of a display device. The processing method of the visual angle compensation lookup table of the invention carries out bit reduction processing on the original visual angle compensation lookup table and adjusts at least one of the first and the second 8-bit sub-gray scales in each initial processing 8-bit sub-gray scale group of the initial processing visual angle compensation lookup table to ensure that the two sub-gray scales are equal to obtain the processed visual angle compensation lookup table, the display device receives a plurality of target 12-bit gray scales respectively corresponding to the plurality of sub-pixel groups, the method comprises the steps of carrying out bit reduction processing on a plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales, obtaining a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales respectively by utilizing a processed visual angle compensation lookup table, and driving a plurality of sub-pixel groups of a display device to display by utilizing the plurality of actual 8-bit sub-gray scales, so that flickering vertical stripes generated when the display device displays a pure gray scale picture can be eliminated, and the display quality is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a method for processing a view angle compensation lookup table and a method for driving a display device.
Background
The conventional flat panel Display device mainly includes a liquid Crystal Display device (L acquired Crystal Display, L CD) and an Organic light Emitting diode Display device (Organic L light Emitting Display, O L ED).
Most of the existing liquid crystal displays in the market are backlight liquid crystal displays (lcds), which include a liquid crystal display panel and a backlight module (backlight module). The liquid crystal display panel operates on the principle that liquid crystal molecules are poured between a thin film Transistor Array (TFT Array Substrate) and a color filter (color filter, CF) Substrate, pixel voltage and common voltage are applied to the two substrates, and the rotation direction of the liquid crystal molecules is controlled by an electric field formed between the pixel voltage and the common voltage, so that light of a backlight module is transmitted out to generate a picture.
In order to improve the data processing precision, the internal module of the time sequence controller (TCON) mostly processes 12 bits of data, the processed data is transmitted downwards by 12 bits, but the source driver (source driver) of the display panel receiving the data is mostly only adapted to 8 bits of data at present, therefore, in order to realize the transmission and utilization of the data, in the prior art, the 12 bits of data are subjected to bit reduction processing by a jitter module and converted into 8 bits of data to be transmitted to the source driver, so that the 8 bits of panel, namely the panel with 256 levels of brightness, can present the display effect similar to 12 bits of brightness, namely 4096 levels of brightness.
In the prior art, in order to improve the side viewing angle of the display device, a viewing angle compensation module (VAC) is further arranged inside the time schedule controller, the data processing and lookup table of the viewing angle compensation module is in a 12-bit form, an 8-bit target gray scale is equivalently formed by utilizing two 12-bit actual gray scales of light and dark, and the display device with the structure has the advantages that when the whole frame displays a pure gray scale, the panel can generate flickering vertical stripes under a visual sensitive low gray scale, such as 10-30 gray scales of 256 gray scales.
Disclosure of Invention
The invention aims to provide a processing method of a visual angle compensation lookup table, which can be applied to display device driving to eliminate flickering vertical stripes generated when a display device displays a pure gray scale picture and improve the display quality.
Another objective of the present invention is to provide a driving method for a display device, which can eliminate the flicker vertical stripes when the display device displays a pure gray scale image, thereby improving the display quality.
In order to achieve the above object, the present invention first provides a method for processing a view angle compensation lookup table, which comprises the following steps:
step S1, providing an original visual angle compensation lookup table; the original visual angle compensation lookup table comprises a plurality of 12-bit sub-gray scale groups corresponding to a plurality of preset standard 8-bit gray scales respectively, each 12-bit sub-gray scale group comprises a first 12-bit sub-gray scale and a second 12-bit sub-gray scale, wherein n is a positive integer;
step S2, performing bit reduction processing on the original visual angle compensation lookup table to obtain a primary processing visual angle compensation lookup table; the primary processing visual angle compensation lookup table comprises a plurality of primary processing 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each primary processing 8-bit sub-gray scale group comprises a first 8-bit sub-gray scale and a second 8-bit sub-gray scale;
step S3, adjusting the first 8-bit sub-gray scale and/or the second 8-bit sub-gray scale in each primary processing 8-bit sub-gray scale group of the primary processing visual angle compensation lookup table to enable the first 8-bit sub-gray scale and the second 8-bit sub-gray scale to be equal to obtain a processed visual angle compensation lookup table, wherein the processed visual angle compensation lookup table comprises a plurality of processed 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each processed 8-bit sub-gray scale group comprises two equal actual 8-bit sub-gray scales.
In the original visual angle compensation lookup table, the number of 12-bit sub-gray scale groups corresponding to the same standard 8-bit gray scale is 3, and the 12-bit sub-gray scale groups are respectively a red 12-bit sub-gray scale group, a green 12-bit sub-gray scale group and a blue 12-bit sub-gray scale group.
The number of the standard 8-bit gray scales is 256, the standard 8-bit gray scales are sequentially increased, the minimum standard 8-bit gray scale in the standard 8-bit gray scales is 0, the maximum standard 8-bit gray scale is 255, and the difference value of the two standard 8-bit gray scales adjacent to any numerical value is 1.
In step S3, the first 8-bit sub-gray scale in each of the first processed 8-bit sub-gray scale groups of the first processed view angle compensation lookup table is adjusted to be equal to the second 8-bit sub-gray scale in the first processed 8-bit sub-gray scale group.
In step S3, the second 8-bit sub-gray scale in each of the first 8-bit sub-gray scale groups of the first processing viewing angle compensation lookup table is adjusted to be equal to the first 8-bit sub-gray scale in the first processing 8-bit sub-gray scale group.
The invention also provides a driving method of the display device, which comprises the following steps:
step S10, providing a display device; the display device comprises a plurality of sub-pixel groups arranged in an array;
step S20, acquiring the view angle compensation lookup table after the processing by adopting the processing method of the view angle compensation lookup table;
step S30, the display device receives a plurality of target 12-bit gray scales respectively corresponding to the plurality of sub-pixel groups, and performs bit reduction processing on the plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales respectively corresponding to the plurality of sub-pixel groups;
step S40, acquiring a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales respectively by utilizing the processed visual angle compensation lookup table;
step S50, driving the sub-pixel groups of the display device to display by using the actual 8-bit sub-gray scales.
Each sub-pixel group comprises a plurality of sub-pixels which are arranged in m rows and m columns, wherein m is a positive integer multiple of 4;
the step S50 specifically includes: judging numbers after a plurality of decimal points displaying 8-bit gray scales; when the number behind the decimal point of an actual 8-bit sub-gray scale is 0, all the sub-pixels in the corresponding sub-pixel group display the actual 8-bit sub-gray scale and maintain the preset duration of p frames, wherein p is a positive integer multiple of 4; when the number of a decimal point of an actual 8-bit sub-gray scale is 25, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels in each row and each column in a corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded, and in the p-frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/4 frame preset time length; when the number of a decimal point of an actual 8-bit sub-gray scale is 5, in each frame preset time length of the p frame preset time length, m/2 sub-pixels in each row and each column in a corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded, and in the p frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/2 frame preset time length; when the number of the decimal point of the actual 8-bit sub-gray scale is 75, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels in each row and each column in the corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded, the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and in the p-frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded is p/4 frame preset time length.
m is 4 or 8.
p is 4.
The display device is a liquid crystal display device or a light emitting diode display device.
The invention has the beneficial effects that: the processing method of the visual angle compensation lookup table of the invention carries out bit reduction processing on the original visual angle compensation lookup table and adjusts at least one of the first and the second 8-bit sub-gray scales in each initial processing 8-bit sub-gray scale group of the initial processing visual angle compensation lookup table to ensure that the two sub-gray scales are equal to obtain the processed visual angle compensation lookup table, the display device receives a plurality of target 12-bit gray scales respectively corresponding to the plurality of sub-pixel groups, the method comprises the steps of carrying out bit reduction processing on a plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales, obtaining a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales respectively by utilizing a processed visual angle compensation lookup table, and driving a plurality of sub-pixel groups of a display device to display by utilizing the plurality of actual 8-bit sub-gray scales, so that flickering vertical stripes generated when the display device displays a pure gray scale picture can be eliminated, and the display quality is improved. The driving method of the display device can eliminate the flicker vertical stripes when the display device displays a pure gray scale picture, and improve the display quality.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a flow chart of a method for processing a view angle compensation lookup table according to the present invention;
FIG. 2 is a flow chart of a driving method of a display device according to the present invention;
FIG. 3 is a schematic diagram showing the display of the corresponding sub-pixel group in the preset time duration of four frames when the number after the decimal point of an actual 8-bit sub-gray level is 0 in step S50 according to the driving method of the display device of the present invention;
FIG. 4 is a schematic diagram showing the display of the corresponding sub-pixel group in the preset time duration of four frames when the number after the decimal point of an actual 8-bit sub-gray level is 25 in step S50 according to the driving method of the display device of the present invention;
FIG. 5 is a schematic diagram showing the display of the corresponding sub-pixel group in the preset time duration of four frames when the number after the decimal point of an actual 8-bit sub-gray level is 5 in step S50 according to the driving method of the display device of the present invention;
fig. 6 is a schematic diagram of the display of the corresponding sub-pixel group in the preset time duration of four frames when the number after the decimal point of an actual 8-bit sub-gray level is 75 in step S50 according to the driving method of the display device of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, the present invention provides a method for processing a view angle compensation lookup table, which includes the following steps:
and step S1, providing an original view angle compensation lookup table. The original visual angle compensation lookup table comprises a plurality of 12-bit sub-gray scale groups corresponding to a plurality of preset standard 8-bit gray scales respectively, each 12-bit sub-gray scale group comprises a first 12-bit sub-gray scale and a second 12-bit sub-gray scale, and n is a positive integer.
Specifically, in the original viewing angle compensation lookup table, the number of 12-bit sub-gray scale groups corresponding to the same standard 8-bit gray scale is 3, and the 12-bit sub-gray scale groups are a red 12-bit sub-gray scale group, a green 12-bit sub-gray scale group, and a blue 12-bit sub-gray scale group. The first 12-bit sub-gray scale and the second 12-bit sub-gray scale in the red 12-bit sub-gray scale group are respectively a first red 12-bit sub-gray scale and a second red 12-bit sub-gray scale, the first 12-bit sub-gray scale and the second 12-bit sub-gray scale in the green 12-bit sub-gray scale group are respectively a first green 12-bit sub-gray scale and a second green 12-bit sub-gray scale, and the first 12-bit sub-gray scale and the second 12-bit sub-gray scale in the blue 12-bit sub-gray scale group are respectively a first blue 12-bit sub-gray scale and a second blue 12-bit sub-gray scale.
Specifically, the number of the standard 8-bit gray scales is 256, the standard 8-bit gray scales are sequentially increased, the smallest standard 8-bit gray scale in the standard 8-bit gray scales is 0, the largest standard 8-bit gray scale is 255, and the difference value between the two adjacent standard 8-bit gray scales of any numerical value is 1.
Specifically, the original view compensation look-up table may be the original view compensation look-up table shown in table 1:
TABLE 1 original visual angle compensation lookup table
And step S2, performing bit reduction processing on the original view angle compensation lookup table to obtain a primary processing view angle compensation lookup table. The initial processing visual angle compensation lookup table comprises a plurality of initial processing 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each initial processing 8-bit sub-gray scale group comprises a first 8-bit sub-gray scale and a second 8-bit sub-gray scale.
Specifically, in the initial processing viewing angle compensation lookup table obtained in step S2, the number of the initial processing 8-bit sub-gray scale groups corresponding to the same standard 8-bit gray scale is also 3, and the number is respectively a red initial processing 8-bit sub-gray scale group, a green initial processing 8-bit sub-gray scale group, and a blue initial processing 8-bit sub-gray scale group. The first 8-bit sub-gray scale and the second 8-bit sub-gray scale in the red primary processing 8-bit sub-gray scale group are respectively a first red 8-bit sub-gray scale and a second red 8-bit sub-gray scale, the first 8-bit sub-gray scale and the second 8-bit sub-gray scale in the green primary processing 8-bit sub-gray scale group are respectively a first green 8-bit sub-gray scale and a second green 8-bit sub-gray scale, and the first 8-bit sub-gray scale and the second 8-bit sub-gray scale in the blue primary processing 8-bit sub-gray scale group are respectively a first blue 8-bit sub-gray scale and a second blue 8-bit sub-gray scale.
Specifically, the initial view compensation lookup table may be a primary processing view compensation lookup table shown in table 2:
TABLE 2 Primary processing view angle compensation lookup table
Step S3, adjusting the first 8-bit sub-gray scale and/or the second 8-bit sub-gray scale in each primary processing 8-bit sub-gray scale group of the primary processing visual angle compensation lookup table to enable the first 8-bit sub-gray scale and the second 8-bit sub-gray scale to be equal to obtain a processed visual angle compensation lookup table, wherein the processed visual angle compensation lookup table comprises a plurality of processed 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each processed 8-bit sub-gray scale group comprises two equal actual 8-bit sub-gray scales.
Optionally, in step S3, the first 8-bit sub-gray scale in each first processing 8-bit sub-gray scale group of the first processing viewing angle compensation lookup table may be adjusted to be equal to the second 8-bit sub-gray scale in the first processing 8-bit sub-gray scale group, or the second 8-bit sub-gray scale in each first processing 8-bit sub-gray scale group of the first processing viewing angle compensation lookup table may be adjusted to be equal to the first 8-bit sub-gray scale in the first processing 8-bit sub-gray scale group.
Specifically, in the viewing angle compensation lookup table with completed processing obtained in step S3, the number of 8-bit sub-gray scale groups with completed processing corresponding to the same standard 8-bit gray scale is also 3, and the number is respectively 8-bit sub-gray scale groups with completed processing for red, 8-bit sub-gray scale groups with completed processing for green, and 8-bit sub-gray scale groups with completed processing for blue. Two equal actual 8-bit sub-gray levels in the 8-bit sub-gray level group after red processing are respectively a first actual red 8-bit sub-gray level and a second actual red 8-bit sub-gray level, two equal actual 8-bit sub-gray levels in the 8-bit sub-gray level group after green processing are respectively a first actual green 8-bit sub-gray level and a second actual green 8-bit sub-gray level, and two equal actual 8-bit sub-gray levels in the 8-bit sub-gray level group after blue processing are respectively a first actual blue 8-bit sub-gray level and a second actual blue 8-bit sub-gray level.
Specifically, the initial view compensation lookup table may be a primary processing view compensation lookup table shown in table 2:
TABLE 3 Primary processing view angle compensation lookup table
It is to be noted that, in the processing method of the viewing angle compensation lookup table of the present invention, the bit reduction processing is performed on the original viewing angle compensation lookup table and at least one of the first and second 8-bit sub-gray levels in each of the first 8-bit sub-gray level groups of the first processed viewing angle compensation lookup table is adjusted to be equal to each other to obtain the processed viewing angle compensation lookup table, so that, with reference to the embodiment shown in fig. 3 to 6, when the display device is driven by using the processed viewing angle compensation lookup table, the display device has a plurality of sub-pixel groups 10, each sub-pixel group 10 has 16 sub-pixels 11 arranged in 4 time length 4 × 4, the sub-pixel 11 in each sub-pixel group 10 located in odd-numbered rows and even-numbered rows is a high-gray-scale sub-pixel, the pixel 11 in odd-numbered rows and even-numbered rows is a low-gray-scale sub-gray-scale sub-gray-frame, the display device receives a plurality of target 12 gray-scale sub-gray-scale groups 10 corresponding to the plurality of sub-pixel groups 10, and the gray-scale sub-gray-scale sub-frame 10, the gray-scale sub-frame 10 is generated by performing the reduction processing, and the actual display of the actual gray-scale sub-frame 10, and the display, and the actual display of the display time length of the display time length 10, when the display time length of the display time length 10, the display time length of the display time length 8 sub-gray-scale sub-gray-scale sub-gray-frame is the display time length 10, the display time length of the display time length 10, the display time length of the display time length 10 is the display time length 10, the display time length of the display time length 10 is the display time length 10, the display time length of the display time length 8 sub-length of the display time length 10 is the display time length 10, the display time length of the display time length 10, the display time length 10 is the display time length 10, the display time length of the display time length 8 sub-length 10 is the display time length 10, the display time length of the display time length 8 sub-length of the display time length 10, when the display time length 10, the display time length 10 is the display time length of the display time length 10 is 1 time length display time length 10, the display time length of the display time length display time.
Referring to fig. 2, based on the same inventive concept, the present invention further provides a driving method of a display device, including the following steps:
and step S10, providing a display device. The display device includes a plurality of sub-pixel groups 10 arranged in an array.
Specifically, 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. In each sub-pixel group 10, the sub-pixels 11 located in odd-numbered rows and even-numbered columns are high gray-scale sub-pixels, and the pixels 11 located in odd-numbered rows and even-numbered rows are low gray-scale sub-pixels.
Specifically, the display device may be a common flat display device such as a liquid crystal display device or a light emitting diode display device.
Step S20, obtaining the view angle compensation lookup table after the processing by using the above processing method of the view angle compensation lookup table. The detailed steps of obtaining the view angle compensation lookup table after the processing are not described herein again.
Step S30, the display device receives a plurality of target 12-bit gray scales corresponding to the plurality of sub-pixel groups 10, and performs bit reduction processing on the plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales corresponding to the plurality of sub-pixel groups 10.
And step S40, acquiring a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales respectively by utilizing the processed visual angle compensation lookup table.
Step S50, driving the sub-pixel groups 10 of the display device to display by using the actual 8-bit sub-gray scales.
Specifically, the step S50 specifically includes: the numbers after the decimal point of a plurality of 8-bit gray scales are displayed are judged. When the number of a decimal point of an actual 8-bit sub-gray scale is 0, all the sub-pixels 11 in the corresponding sub-pixel group 10 display the actual 8-bit sub-gray scale and maintain the preset duration of p frames, wherein p is a positive integer multiple of 4; when the number after the decimal point of an actual 8-bit sub-gray scale is 25, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels 11 in each row and each column in the corresponding sub-pixel group 10 display the value of the actual 8-bit sub-gray scale after being rounded plus 1 and the rest sub-pixels 11 display the value of the actual 8-bit sub-gray scale after being rounded, and in the p-frame preset time length, the time length of each sub-pixel 11 displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/4-frame preset time length; when the number after the decimal point of an actual 8-bit sub-gray scale is 5, in each frame preset time length of the p-frame preset time length, m/2 sub-pixels 11 in each row and each column in the corresponding sub-pixel group 10 display the value of the actual 8-bit sub-gray scale after being rounded plus 1 and the rest sub-pixels 11 display the value of the actual 8-bit sub-gray scale after being rounded, and in the p-frame preset time length, the time length of each sub-pixel 11 displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/2 frame preset time length; when the number after the decimal point of an actual 8-bit sub-gray scale is 75, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels 11 in each row and each column in the corresponding sub-pixel group 10 display the value obtained by the actual 8-bit sub-gray scale integration and the rest sub-pixels 11 display the value obtained by the actual 8-bit sub-gray scale integration plus 1, and in the p-frame preset time length, the time length of each sub-pixel 11 displaying the value obtained by the actual 8-bit sub-gray scale integration is p/4 frame preset time length.
Further, in the embodiment shown in fig. 3 to 6, p is 4, and m is also 4, so as to refer to fig. 3, in this embodiment, when the number after the decimal point of an actual 8-bit sub-gray scale is 0, all the sub-pixels 11 in the corresponding sub-pixel group 10 display the actual 8-bit sub-gray scale and maintain the preset time length of 4 frames, referring to fig. 4, when the number after the decimal point of an actual 8-bit sub-gray scale is 25, within each preset time length of 4 frames, 1 sub-pixel 11 in each row and each column in the corresponding sub-pixel group 10 displays the value after the actual 8-bit sub-gray scale is rounded plus 1, and the remaining sub-pixels 11 display the value after the actual 8-bit sub-gray scale is rounded within the preset time length of 4 frames, and each sub-pixel 11 displays the value after the actual 8-bit sub-gray scale is rounded plus 1 frame within the preset time length of 4 frames, referring to fig. 5, when the number after the decimal point of an actual 8-bit sub-gray scale is 5, in each frame preset time length of 4 frames preset time length, 2 sub-pixels 11 in each row and each column in the corresponding sub-pixel group 10 display the value after the actual 8-bit sub-gray scale is rounded plus 1 and the rest of sub-pixels 11 display the value after the actual 8-bit sub-gray scale is rounded, and in 4 frames preset time length, the time length for each sub-pixel 11 to display the value after the actual 8-bit sub-gray scale is plus 1 is 2 frames preset time length, referring to fig. 6, when the number after the decimal point of an actual 8-bit sub-gray scale is 75, in each frame preset time length of 4 frames preset time length, 1 sub-pixel 11 in each row and each column in the corresponding sub-pixel group 10 displays the value after the actual 8-bit sub-gray scale is rounded and the rest of sub-pixels 11 display the value after the actual 8-bit is rounded plus 1, and within the preset time length of 4 frames, the time length of each sub-pixel 11 displaying the value of the actual 8-bit sub-gray scale after being rounded is 1 frame of preset time length.
It should be noted that in the driving method of the display device of the present invention, since the displayed gray scale of each sub-pixel group 10, regardless of the high gray scale sub-pixel or the low gray scale sub-pixel, is obtained by conversion according to the algorithm corresponding to the decimal digit of the same actual 8-bit sub-gray scale, the flicker vertical stripes generated when the display device displays a pure gray scale picture can be eliminated, and the display quality is improved.
In summary, the processing method of the viewing angle compensation lookup table of the present invention performs a bit reduction process on the original viewing angle compensation lookup table, adjusts at least one of the first and second 8-bit sub-gray scales in each of the 8-bit sub-gray scale groups of the initial viewing angle compensation lookup table to be equal to each other, so as to obtain a processed viewing angle compensation lookup table, when driving, the display device receives a plurality of target 12-bit gray scales corresponding to the plurality of sub-pixel groups, performs a bit reduction process on the plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales, obtains a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales by using the processed viewing angle compensation lookup table, and drives the plurality of sub-pixel groups of the display device to display by using the plurality of actual 8-bit sub-gray scales, so as to eliminate the vertical flicker appearing when the display device displays a pure gray picture, the display quality is improved. The driving method of the display device can eliminate the flicker vertical stripes when the display device displays a pure gray scale picture, and improve the display quality.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (10)
1. A method for processing a view compensation look-up table, comprising the steps of:
step S1, providing an original visual angle compensation lookup table; the original visual angle compensation lookup table comprises a plurality of 12-bit sub-gray scale groups corresponding to a plurality of preset standard 8-bit gray scales respectively, each 12-bit sub-gray scale group comprises a first 12-bit sub-gray scale and a second 12-bit sub-gray scale, wherein n is a positive integer;
step S2, performing bit reduction processing on the original visual angle compensation lookup table to obtain a primary processing visual angle compensation lookup table; the primary processing visual angle compensation lookup table comprises a plurality of primary processing 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each primary processing 8-bit sub-gray scale group comprises a first 8-bit sub-gray scale and a second 8-bit sub-gray scale;
step S3, adjusting the first 8-bit sub-gray scale and/or the second 8-bit sub-gray scale in each primary processing 8-bit sub-gray scale group of the primary processing visual angle compensation lookup table to enable the first 8-bit sub-gray scale and the second 8-bit sub-gray scale to be equal to obtain a processed visual angle compensation lookup table, wherein the processed visual angle compensation lookup table comprises a plurality of processed 8-bit sub-gray scale groups corresponding to a plurality of standard 8-bit gray scales respectively, and each processed 8-bit sub-gray scale group comprises two equal actual 8-bit sub-gray scales.
2. The method as claimed in claim 1, wherein the number of 12-bit sub-gray scale groups corresponding to the same standard 8-bit gray scale in the original viewing angle compensation lookup table is 3, and the sub-gray scale groups are a red 12-bit sub-gray scale group, a green 12-bit sub-gray scale group and a blue 12-bit sub-gray scale group.
3. The method as claimed in claim 1, wherein the number of the standard 8-bit gray scales is 256, the standard 8-bit gray scales are sequentially increased, the minimum standard 8-bit gray scale is 0, the maximum standard 8-bit gray scale is 255, and the difference between any two adjacent standard 8-bit gray scales is 1.
4. The method as claimed in claim 1, wherein in step S3, the first 8-bit sub-gray level in each of the first 8-bit sub-gray level groups of the first processed viewing angle compensation lookup table is adjusted to be equal to the second 8-bit sub-gray level in the first 8-bit sub-gray level group.
5. The method as claimed in claim 1, wherein in step S3, the second 8-bit sub-gray level in each of the first 8-bit sub-gray level groups of the first processed viewing angle compensation lookup table is adjusted to be equal to the first 8-bit sub-gray level in the first 8-bit sub-gray level group.
6. A method of driving a display device, comprising the steps of:
step S10, providing a display device; the display device comprises a plurality of sub-pixel groups arranged in an array;
step S20, acquiring the view angle compensation lookup table after processing by using the processing method of the view angle compensation lookup table according to any one of claims 1 to 5;
step S30, the display device receives a plurality of target 12-bit gray scales respectively corresponding to the plurality of sub-pixel groups, and performs bit reduction processing on the plurality of target 12-bit gray scales to generate a plurality of target 8-bit gray scales respectively corresponding to the plurality of sub-pixel groups;
step S40, acquiring a plurality of actual 8-bit sub-gray scales corresponding to the plurality of target 8-bit gray scales respectively by utilizing the processed visual angle compensation lookup table;
step S50, driving the sub-pixel groups of the display device to display by using the actual 8-bit sub-gray scales.
7. The driving method of a display device according to claim 6, wherein each of the sub-pixel groups comprises a plurality of sub-pixels arranged in m rows and m columns, wherein m is a positive integer multiple of 4;
the step S50 specifically includes: judging numbers after a plurality of decimal points displaying 8-bit gray scales; when the number behind the decimal point of an actual 8-bit sub-gray scale is 0, all the sub-pixels in the corresponding sub-pixel group display the actual 8-bit sub-gray scale and maintain the preset duration of p frames, wherein p is a positive integer multiple of 4; when the number of a decimal point of an actual 8-bit sub-gray scale is 25, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels in each row and each column in a corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded, and in the p-frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/4 frame preset time length; when the number of a decimal point of an actual 8-bit sub-gray scale is 5, in each frame preset time length of the p frame preset time length, m/2 sub-pixels in each row and each column in a corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded, and in the p frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded plus 1 is p/2 frame preset time length; when the number of the decimal point of the actual 8-bit sub-gray scale is 75, in each frame preset time length of the p-frame preset time length, m/4 sub-pixels in each row and each column in the corresponding sub-pixel group display the value of the actual 8-bit sub-gray scale after being rounded, the rest sub-pixels display the value of the actual 8-bit sub-gray scale after being rounded plus 1, and in the p-frame preset time length, the time length of each sub-pixel displaying the value of the actual 8-bit sub-gray scale after being rounded is p/4 frame preset time length.
8. The driving method of a display device according to claim 7, wherein m is 4 or 8.
9. The driving method of a display device according to claim 7, wherein p is 4.
10. The method for driving a display device according to claim 6, wherein the display device is a liquid crystal display device or a light emitting diode display device.
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| CN201811459013.XA CN109493800B (en) | 2018-11-30 | 2018-11-30 | Processing method of visual angle compensation lookup table and driving method of display device |
| PCT/CN2019/070314 WO2020107648A1 (en) | 2018-11-30 | 2019-01-03 | Processing method for viewing angle compensation lookup table and drive method for display apparatus |
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| CN110364116B (en) * | 2019-07-15 | 2021-06-15 | 云谷（固安）科技有限公司 | Gray scale compensation method, gray scale compensation device and display module |
| CN112863422B (en) * | 2021-02-20 | 2022-04-26 | Tcl华星光电技术有限公司 | Time schedule controller and display panel |
| CN113160767B (en) * | 2021-04-13 | 2022-11-01 | 惠州市华星光电技术有限公司 | Display compensation method and device and display panel |
| CN115223511A (en) * | 2021-04-21 | 2022-10-21 | 海信视像科技股份有限公司 | Display adjustment method, device, equipment and storage medium |
| CN113593491B (en) * | 2021-07-13 | 2022-08-05 | Tcl华星光电技术有限公司 | Display panel driving method, display panel and display device |
| CN114999416B (en) * | 2022-06-07 | 2023-05-30 | Tcl华星光电技术有限公司 | Display panel picture optimization method and device, electronic equipment and storage medium |
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