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CN113793561B - Single-color display method and single-color display device - Google Patents

Single-color display method and single-color display device Download PDF

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Publication number
CN113793561B
CN113793561B CN202111113743.6A CN202111113743A CN113793561B CN 113793561 B CN113793561 B CN 113793561B CN 202111113743 A CN202111113743 A CN 202111113743A CN 113793561 B CN113793561 B CN 113793561B
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gray
sub
scale value
image data
pixel
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CN113793561A (en
Inventor
史天阔
姬治华
侯一凡
刘蕊
段欣
孙伟
张小牤
张大成
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses a monochrome display method and a monochrome display device. The display method of one embodiment is applied to a single-color display device, and the single-color display device drives sub-pixels arranged in 2N rows by 2N columns to display according to received three-primary-color image data of N rows by N columns, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are staggered in the row direction; the method comprises the following steps: converting the three primary color image data into N rows by N columns of gray image data; determining gray scale values of all sub-pixels corresponding to a preset driving mode according to the preset driving mode and the gray image data; and driving each sub-pixel to display according to the gray scale value of each sub-pixel. The method provided by the embodiment of the invention can effectively restore gray image data, avoids color image data loss in the monochrome display process, can excellently restore color image data, and has the characteristics of good display effect and high monochrome display definition.

Description

Single-color display method and single-color display device
Technical Field
The invention relates to the technical field of display. And more particularly, to a monochrome display method and a monochrome display apparatus.
Background
In the prior art, the pixel arrangement of a monochrome display device is generally the same as that of a color display device. When the monochrome display device performs monochrome display, the received color image data needs to be converted into the gray scale value of each sub-pixel in the monochrome display device, and the monochrome display device further drives each sub-pixel to perform display according to the gray scale value. However, in the process of performing monochrome display by the monochrome display device, color image data loss is liable to occur, and color image data cannot be completely restored, resulting in a problem of poor monochrome display effect.
Disclosure of Invention
The invention aims to provide a display panel, a manufacturing method thereof and a display device, which are used for solving at least one of the problems existing in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the first aspect of the present invention provides a monochrome display method, which is applied to a monochrome display device, where the monochrome display device drives sub-pixels arranged in 2N rows by 2N columns according to received N rows by N columns of three primary color image data to display, where sub-pixels located in even columns and sub-pixels located in odd columns are staggered in a row direction;
The method comprises the following steps:
converting the three primary color image data into N rows by N columns of gray image data;
determining gray scale values of all sub-pixels corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and driving each sub-pixel to display according to the gray scale value of each sub-pixel.
Further, the monochrome display device includes N rows of scan lines and 2N columns of data lines, where two adjacent rows of sub-pixels connected to the same scan line are considered to be located in the same row in the preset driving mode.
Further, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
sub(h,w)＝gray(h,w/2)；
wherein, (w/2) operations round down; h is E [0, N-1]; w is [0, (2N-1) ];
sub (h, w) is the gray scale value of the h row and w column sub-pixels;
gray (h, w/2) is a gray scale value of gray image data of the h-th row (w/2) th column.
Further, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
The gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4;
when w% 2= 1, sub (h, w) = gray (h, w/2)/4+gray (h-1, w/2)/4;
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h-1, w/2) is the gray scale value of gray image data at the (h-1) th row (w/2) th column.
Further, the method further comprises:
and compensating the gray scale value of the sub-pixel positioned in the N row or the 2N-1 column by using a preset compensation threshold value.
Further, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
when w% 2= 0,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
when w% 2= 1, sub (h, w) = gray (h, w/2);
Wherein,(w/2) and (w/2-1) operations rounding down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
Further, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2);
when w% 2= 1,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
The second aspect of the present invention provides a monochrome display device, where the monochrome display device drives sub-pixels arranged in 2N rows by 2N columns to display according to received three primary color image data of N rows by N columns, where the sub-pixels located in even columns and the sub-pixels located in odd columns are staggered in a row direction;
the monochrome display device includes:
the image data conversion module is used for converting the three primary color image data into gray image data of N rows by N columns;
a sub-pixel gray scale value module, configured to determine a gray scale value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and the sub-pixel driving module is used for driving each sub-pixel to display according to the gray scale value of each sub-pixel.
Further, the monochrome display device includes N rows of scan lines and 2N columns of data lines, where two adjacent rows of sub-pixels connected to the same scan line are considered to be located in the same row in the preset driving mode.
Further, the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
sub(h,w)＝gray(h,w/2)；
wherein, (w/2) operations round down; h is E [0, N-1]; w is [0, (2N-1) ];
sub (h, w) is the gray scale value of the h row and w column sub-pixels;
gray (h, w/2) is a gray scale value of gray image data of the h-th row (w/2) th column.
Further, the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4;
when w% 2= 1, sub (h, w) = gray (h, w/2)/4+gray (h-1, w/2)/4;
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h-1, w/2) is the gray scale value of gray image data at the (h-1) th row (w/2) th column.
Further, the sub-pixel gray scale value module is further configured to: and compensating the gray scale value of the sub-pixel positioned in the N row or the 2N-1 column by using a preset compensation threshold value.
Further, the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
When w% 2= 0,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
when w% 2= 1, sub (h, w) = gray (h, w/2);
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
Further, the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2);
when w% 2= 1,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1)A value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
Further, the display device further comprises a single-color display circuit, and the sub-pixel driving module drives each sub-pixel to display through the single-color display circuit.
Further, the display device further comprises a monochromatic filter.
Further, the display device is an AR display device or a VR display device.
The beneficial effects of the invention are as follows:
according to the technical scheme, gray image data can be effectively restored according to the gray image data and the gray values of the sub-pixels corresponding to the preset driving mode, which are determined by the preset driving mode, so that color image data loss in a monochromatic display process is avoided, the color image data can be restored well, and the method has the characteristics of good display effect and high monochromatic display definition.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
FIG. 1 is a schematic diagram showing a subpixel arrangement structure of a conventional color display device;
FIG. 2 is a schematic diagram showing a subpixel arrangement structure of a monochrome display device according to an embodiment of the present invention;
fig. 3 illustrates a monochrome display method applied to a monochrome display device according to an embodiment of the present invention;
FIG. 4 shows a schematic diagram of three primary color image data according to an embodiment of the present invention;
FIG. 5 shows a schematic diagram of gray image data of an embodiment of the present invention;
fig. 6 shows a first display mode of a sub-pixel corresponding to a first preset driving mode according to an embodiment of the present invention;
fig. 7 shows a first display mode of a sub-pixel corresponding to a first preset driving mode according to an embodiment of the present invention;
fig. 8 shows a first display mode of a sub-pixel corresponding to a first preset driving mode according to an embodiment of the present invention;
fig. 9 shows a first display mode of a sub-pixel corresponding to a first preset driving mode according to an embodiment of the present invention;
fig. 10 is a schematic diagram showing a structural framework of a monochrome display device according to a second embodiment of the present invention.
Detailed Description
Fig. 1 shows a subpixel arrangement structure of a conventional color display device, as shown in fig. 1, adjacent blue subpixels B and red subpixels R located in the same row are alternately arranged, adjacent blue subpixels and red subpixels in the same column are alternately arranged to form a red-blue subpixel column, a green subpixel column is disposed between the adjacent red-blue subpixel columns, and each green subpixel G of the green subpixel column and each subpixel (blue subpixel B or red subpixel R) of the red-blue subpixel column are alternately arranged in the row direction. For the sub-pixel arrangement structure, through the dislocation arrangement of the red sub-pixel R and the blue sub-pixel B, the borrowing of the sub-pixel color can be realized during color display, and the whole number of the sub-pixels can be reduced under the condition that the definition of the display panel is not damaged, so that the purpose of developing a display product with higher resolution under the same process is realized.
In the prior art, considering development costs, the subpixel arrangement structure of the monochrome display device is the same as that of fig. 1, so that the monochrome substrate design circuit is the same as the color substrate design circuit. Based on the subpixel arrangement structure of the color display of fig. 1, the monochrome display device in the present embodiment is formed by replacing the color filter in the color display device with the green filter, and thus development costs can be effectively saved.
When the monochrome display device performs monochrome display by using the sub-pixel arrangement structure shown in fig. 2, all the green sub-pixels G can achieve the highest brightness application, so that the green sub-pixels in the monochrome display are fully applied. However, there are problems associated with this: because of the staggered irregular arrangement of all the sub-pixels in the monochrome display device, the loss of color image data is easy to occur in the monochrome display process of the monochrome display device, and the color image data cannot be completely restored, so that the problem of poor monochrome display effect is caused.
In view of the above, the present invention provides a monochrome display method and a monochrome display device to solve the above-mentioned problems.
A first embodiment of the present invention proposes a monochrome display method, which is applied to a monochrome display device, where the monochrome display device drives sub-pixels arranged in 2N rows by 2N columns according to received three primary color image data of N rows by N columns to display the sub-pixels arranged in 2N columns, where sub-pixels located in even columns and sub-pixels located in odd columns are staggered in a row direction.
As shown in fig. 3, the monochrome display method according to the embodiment of the present invention includes:
s1, converting the three primary color image data into N rows and N columns of gray image data;
s2, determining gray scale values of all sub-pixels corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and S3, driving each sub-pixel to display according to the gray scale value of each sub-pixel.
The monochrome display device according to the embodiment of the present invention is arranged in the sub-pixel structure shown in fig. 2, and when performing monochrome display, the received three primary color image data of N rows by N columns is converted into the gray image data of N rows by N columns.
As shown in fig. 2, the sub-pixels in even columns and the sub-pixels in odd columns are staggered in the row direction.
In an alternative embodiment, the monochrome display device includes N rows of scan lines and 2N columns of data lines, wherein two adjacent rows of sub-pixels connected to the same scan line are considered to be located in the same row in the preset driving manner.
In a specific example, as shown in fig. 2, each sub-pixel in the embodiment of the present invention is arranged in 16 (2N) rows by 16 (2N) columns, where the sub-pixels in the same column are all connected by one data line Source, and then the monochrome display device in this embodiment has 16 data lines connected to 16 sub-pixel columns respectively. For 16 sub-pixel rows, the present embodiment uses 8 scan lines, for example, gate lines Gate access each sub-pixel arranged in the row direction, so that one scan line of the present embodiment accesses two adjacent rows of sub-pixels so that the sub-pixel row of 2N rows satisfies the N-row scan line of the present embodiment. For this connection mode of the scan lines, in this embodiment, two adjacent sub-pixel rows accessed by the same scan line are regarded as the same row, that is, in the sub-pixel arrangement structure shown in fig. 2, the total number of sub-pixel rows is 8, and the total number of sub-pixel columns is 16.
For example, as shown in fig. 2, the first sub-pixel column located at the leftmost side is defined as column 0, and then the sub-pixel array is sequentially from left to right, column 0, column 1, column 2, and column … …, column 15. Further, the first sub-pixel row and the second sub-pixel row at the top are used as the first row sub-pixels at the same time, and then the sub-pixel array is sequentially row 0, row 1, row 2 and row … …, row 7 from top to bottom. That is, for the sub-pixel column, the largest sub-pixel column in this embodiment is the 15 th column, and for the sub-pixel row, the largest sub-pixel row in this embodiment is the 7 th row.
Taking the subpixel arrangement structure shown in fig. 2 as an example, a description will be given of a monochrome display method according to an embodiment of the present invention:
s1, converting the three primary color image data into N rows and N columns of gray image data.
When monochrome display is performed, the monochrome display device needs to determine the gray scale value of each sub-pixel when monochrome display is performed according to the received color image data. As shown in fig. 4, the color image data of the present embodiment is three primary color image data of N rows by N columns. For example, when n=8, the color image data of the present embodiment is three primary colors (red, green, and blue) image data of 8 rows by 8 columns. Since the gray-scale values of the sub-pixels of the monochrome display do not match the gray-scale values of the three primary color image data, in this embodiment, the received three primary color image data needs to be converted into N rows by N columns of gray image data shown in fig. 5.
In a specific example, as shown in fig. 4, the first column of the three primary color image data located at the leftmost side is defined as the 0 th column, and then the three primary color image data is the 0 th column, the 1 st column, the 2 nd column, and the … … 7 th column in this order from left to right. Further, the first row of the three primary color image data at the top is taken as the 0 th row, and then the sub-pixel array is sequentially from top to bottom, namely the 0 th row, the 1 st row, the 2 nd row and the … … 7 th row.
In one specific example, the three primary color image data may be converted into gray image data using a gray conversion formula. Illustratively, the gray conversion formula is: gray=r 0.299+g 0.587+b 0.114. Where Gray is the Gray level of the Gray image data, and R, G and B are each the Gray level of each color in the three primary color image data of the present embodiment.
As can be seen from fig. 5, the gray image data is also N rows by N columns, which is consistent with the number of rows and columns of the three primary color image data, so that the converted gray image data can completely restore the three primary color image data, no loss of the image data is caused, and the display effect can be ensured. Illustratively, the gray image data of row 0, column 0 in fig. 5 can characterize the three primary color image data at row 0, column 0 in fig. 4.
In a specific example, the definition of each gray image data column and each gray image data row in the gray image data coincides with the definition of the sub-pixel columns and rows, that is, the gray image data column located at the leftmost side is the 0 th column, and thus, the gray image data columns are the 0 th column, the 1 st column, the 2 nd column, and the … … th column in this order from left to right. Similarly, the gray image data located at the top is row 0, and the gray image data is sequentially row 0, row 1, row 2, and row … …, row 7 from top to bottom, so as to form gray image data arranged in 8 rows by 8 columns in this example.
S2, determining gray scale values of all sub-pixels corresponding to the preset driving mode according to the preset driving mode and the gray image data.
For example, fig. 6 to 9 show display modes of the sub-pixels in different preset driving modes, that is, different gray scale values may exist for each sub-pixel in different preset driving modes, but the gray scale values of each sub-pixel determined according to each preset driving mode can restore gray image data, so that three primary color image data can be restored. That is, the gradation value of the sub-pixel determined by the preset driving method according to the present embodiment can be displayed in the manner shown in fig. 6 to 9 when the sub-pixel displays the gradation value, thereby forming different display methods corresponding to gray image data.
In an optional embodiment, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
sub(h,w)＝gray(h,w/2) (1)；
wherein, (w/2) operations round down; h is E [0, N-1]; w is [0, (2N-1) ];
sub (h, w) is the gray scale value of the h row and w column sub-pixels;
Gray (h, w/2) is a gray scale value of gray image data of the h-th row (w/2) th column.
In this embodiment, the gray scale value of each sub-pixel obtained according to the first relation (1) in the preset driving method can be displayed in the manner shown in fig. 6, in other words, the preset driving method of this embodiment includes: a first relation of gray scale values of the sub-pixels and a first display mode of the sub-pixels corresponding to the first relation and the gray image data are determined according to the gray image data.
In a specific example, the step of determining the gray-scale value of each sub-pixel corresponding to the preset driving manner as follows further includes:
s210, gray scale values of the sub-pixels can be obtained from the first relation (1) and the gray image data.
In one specific example, sub-pixel A shown in FIG. 6 1 And sub-pixel A 2 For example, for sub-pixel A 1 Its position in the subpixel array can be expressed as (0, 0), i.e., subpixel A 1 Is located in row 0 and column 0 of the subpixel array. For sub-pixel A 2 Its position in the subpixel array can be expressed as (0, 1), i.e., subpixel A 2 Is located in row 0 and column 1 of the subpixel array. Thus, subpixel A 1 And sub-pixel A 2 Although arranged obliquely, both access the same scan line, i.e. sub-pixel A 1 And sub-pixel A 2 All in the same row but in different columns.
To fully restore the gray scale value of gray image data at this location, subpixel A 1 And sub-pixel A 2 The respective gray-scale values need to be further determined, that is, the sub-pixel A can be determined according to the first relation 1 And sub-pixel A 2 Each of the gray scale values.
Exemplary, for subpixel A 1 Its position in the sub-pixel array is (0, 0), sub-pixel a determined according to relation (1) sub (h, w) =gray (h, w/2) 1 Gray scale value sub A of (2) 1 The method comprises the following steps:
sub A 1 (0, 0) =gray (0, 0), i.e. the sub-pixel a 1 The gray scale value of the gray image data of row 0 and column 0 in fig. 5.
Also for example, for subpixel A 2 Its position in the sub-pixel array is (0, 1), sub-pixel A determined according to the first relation (1) 2 Gray scale value sub A of (2) 2 The method comprises the following steps:
sub A 2 (0, 1) =gray (0, 1/2) =gray (0, 0), in this embodiment, (1/2) is rounded down, i.e. taken as 0, and therefore, the sub-pixel a 2 The gray scale value of the gray image data of row 0 and column 0 in fig. 5.
In another specific example, for sub-pixel B shown in FIG. 6 1 Its position in the sub-pixel array is (7, 14), sub-pixel B determined according to relation (1) 1 Gray scale value sub B of (2) 1 The method comprises the following steps:
sub (7, 14) =gray (7, 14/2) =gray (7, 7), i.e. the sub-pixel B 1 The gray scale values of the gray image data of the 7 th row and 7 th column in fig. 6.
For example, for the sub-pixel B shown in FIG. 6 which is in the same row as the sub-pixel B1 2 Its position in the sub-pixel array is (7, 15), sub-pixel B determined according to relation (1) 1 Gray scale value sub B of (2) 1 The method comprises the following steps:
the sub (7, 15) =gray (7, 15/2) =gray (7, 7), (15/2) is rounded down, i.e. taken as 7, and therefore, the sub-pixel B 2 The gray scale value of the gray image data of the 7 th row and 7 th column in 5.
In the step, each sub-pixel can determine the respective gray scale value according to the first relation, and the gray scale value of the sub-pixel can correspond to the gray scale value of the gray image data, so that the gray image data can be completely restored in the process that the sub-pixel displays the gray scale value obtained by calculation, the loss of the gray image data is avoided, and the restoring effect of the three-primary-color image data is ensured.
Further, after the gray scale value of each sub-pixel is obtained according to the first relation, the sub-pixel can be divided into different display areas, and the display areas can more obviously correspond to the rows and columns of the gray image data, that is, the process of step S220 described below is performed.
S220, determining a first display mode of each sub-pixel according to a first relation, and regarding two sub-pixels which are positioned in the same sub-pixel row and in adjacent sub-pixel columns as a display area, wherein the adjacent display areas are mutually independent.
Since one scanning line is connected to two adjacent sub-pixel rows, the sub-pixels connected to the same scanning line are set to be in the same row, namely sub-pixel A 1 And sub-pixel A 2 All located in row 0. Wherein, sub-pixel A 1 At column 0, subpixel A 2 At column 1, subpixel A 1 And subpixel A2 is located in an adjacent subpixel column, i.e., subpixel A as shown in FIG. 6 1 And sub-pixel A 2 Is a display area AA.
Illustratively, as shown in fig. 6, each subpixel forms a parallelogram of display areas arranged in 8 rows by 8 columns. Although two subpixels are arranged in a relatively inclined manner in one display area, the two subpixels are positioned in the same row and in different columns. As shown in fig. 6, two sub-pixels a 1 And sub-pixel A 2 The display area AA is formed in a parallelogram shape, and the gray-scale value of the display area AA corresponds to the gray-scale value of the AA' area of the rectangular gray-scale image data at the 0 th row and 0 th column in fig. 5, so that the gray-scale image data at the corresponding position can be restored.
In another example, two sub-pixels B 1 And sub-pixel B 2 A display area BB is formed, the gray-scale value of which corresponds to the gray-scale value of the BB' area of the rectangular gray-image data at the 7 th row and 7 th column in fig. 5.
Therefore, for the preset driving mode of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving mode can be determined by the first relation, and the display mode corresponding to the relation and the gray image data can be determined by dividing the display area, so that the process of determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data is completed. In the process, the gray scale values of all the sub-pixels can be determined according to the first relation and the gray image data, the gray image data can be effectively restored by the determined gray scale values of all the sub-pixels, further, the three primary color image data can be restored by the determined gray scale values of all the sub-pixels, and the display effect is ensured.
In another optional embodiment, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
The gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4;
when w% 2= 1, sub (h, w) = gray (h, w/2)/4+gray (h-1, w/2)/4; (2)
Wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h-1, w/2) is the gray scale value of gray image data at the (h-1) th row (w/2) th column.
In this embodiment, the gray scale value of each sub-pixel obtained according to the second relation (2) in the preset driving method can be displayed in the manner shown in fig. 7, in other words, the preset driving method of this embodiment includes: a second relation of gray scale values of the sub-pixels is determined according to the gray image data, and a second display mode of the sub-pixels corresponding to the second relation and the gray image data is determined.
In a specific example, the step of determining the gray-scale value of each sub-pixel corresponding to the preset driving manner as follows further includes:
S210, gray scale values of the sub-pixels can be obtained from the second relation (2) and the gray image data.
In one specific example, sub-pixel A shown in FIG. 7 1 Sub-pixel A 2 Sub-pixel A 3 Sub-pixel A 4 For example, for sub-pixel A 1 Its position in the subpixel array can be expressed as (0, 0), i.e., subpixel A 1 Is located in row 0 and column 0 of the subpixel array. For sub-pixel A 2 Its position in the subpixel array can be expressed as (0, 1), i.e., subpixel A 2 Is positioned in the sub-imageRow 0 and column 1 of the pixel array. For sub-pixel A 3 Its position in the subpixel array can be expressed as (0, 2), i.e., subpixel A 1 Is located in row 0 and column 2 of the subpixel array. For sub-pixel A 4 Its position in the subpixel array can be expressed as (0, 3), i.e., subpixel A 4 Is located in row 0 and column 3 of the subpixel array. Thus, four sub-pixels A 1 ～A 4 All in the same row but in different columns.
At this time, four sub-pixels A 1 ～A 4 To form a display area, four sub-pixels A need to be further determined in order to fully restore the gray scale value of the corresponding gray image data at the position 1 ～A 4 In other words, four sub-pixels A are determined according to the second relation 1 ～A 4 Each of the gray scale values.
In this embodiment, the gray scale value is calculated according to the pixel column where the sub-pixel is located. For the sub-pixels located in even columns, for example, the sub-pixels located in even columns such as the 0 th column, the 2 nd column, the 4 th column, etc., the column number can be divided by 2, and at this time, the gray-scale value of the sub-pixel can be calculated by using the formula of "w% 2= 0" in the second relation. On the other hand, for the sub-pixels located in the odd columns, for example, the sub-pixels located in the odd columns such as the 1 st column, the 3 rd column, and the 5 th column, the number of columns cannot be divided by 2, and at this time, the gray-scale value of the sub-pixel can be calculated by using the formula "w% 2= 1" in the second relational expression.
The gray scale value of each sub-pixel obtained by the preset driving mode of the embodiment improves the problem of the zigzag display of the previous embodiment of the invention when each sub-pixel displays the gray scale value, and can further improve the display effect on the basis of completely restoring gray image data.
Exemplary, as shown in FIG. 7, for subpixel A 1 Its position in the sub-pixel array is (0, 0), the sub-pixel A 1 Located in the even number of columns and,
thus, sub-pixel a is determined according to the relation "w% 2= 0, sub (h, w) = gray (h, w/2)" 1 Gray scale value sub A of (2) 1 The method comprises the following steps:
subA 1 (0, 0) =gray (0, 0), i.e. the sub-pixel a 1 The gray scale value of the gray image data of row 0 and column 0 in fig. 5.
Also for example, for subpixel A 2 Its position in the subpixel array is (0, 1), in the odd columns, and therefore according to the second relationship:
“w％2＝＝1，sub(h,w)＝gray(h,w/2)/4+gray(h-1,w/2)/4”
determined sub-pixel A 2 Gray scale value sub A of (2) 2 The method comprises the following steps:
subA 2 (0, 1) =gray (0, 1/2)/4+gray (0-1, 1/2)/4, and in this embodiment, the minimum value of (h-1) is 0, that is, (0-1) is taken as 0. The operation of (w/2) is rounded down, i.e., (1/2) is taken as 0.
Thus, the sub-pixel A is further obtained 2 Gray scale value sub A of (2) 2 The method comprises the following steps:
subA 2 ＝gray(0,1/2)/4+gray(0-1,1/2)/4＝gray(0,0)/4+gray(0,0)/4。
that is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 2 Is half the gray-scale value of the gray-scale image data at row 0 and column 0 in fig. 5. Also for example, for subpixel A 3 The positions of which in the sub-pixel array are (0, 2), in even columns,
thus, according to the second relation:
"w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4" determines sub-pixel a 3 Gray scale value sub A of (2) 2 The method comprises the following steps:
sub A 3 (0, 2) =gray (0, 2/2)/4+gray (0, 1/2-1)/4, and in this embodiment, the minimum value of (w/2-1) is 0, that is, (1/2-1) is taken as 0.
Thus, the sub-pixel A is further obtained 3 Gray scale value sub A of (2) 3 The method comprises the following steps:
sub A 3 ＝gray(0,1)/4+gray(0,0)/4。
that is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 3 Is one fourth of the sum of the gray-scale value of the gray-scale image data at the 0 th row and the 1 st column and the gray-scale value of the gray-scale image data at the 0 th row and the 0 th column in fig. 5.
Also for example, for subpixel A 4 Its position in the subpixel array is (0, 3), in the odd columns, and therefore according to the second relationship:
“w％2＝＝1，sub(h,w)＝gray(h,w/2)/4+gray(h-1,w/2)/4”
determined sub-pixel A 4 Gray scale value sub A of (2) 4 The method comprises the following steps:
subA 4 (0, 3) =gray (0, 3/2)/4+gray (0-1, 3/2)/4, and in this embodiment, the minimum value of (h-1) is 0, that is, (0-1) is taken as 0. The operation of (w/2) is rounded down, i.e., (3/2) is taken as 1.
Thus, the sub-pixel A is further obtained 4 Gray scale value sub A of (2) 4 The method comprises the following steps:
subA 4 ＝gray(0,3/2)/4+gray(0-1,3/2)/4＝gray(0,1)/4+gray(0,1)/4。
that is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 4 Is one fourth of the sum of the gray-scale value of the gray-scale image data at row 0 and column 1 in fig. 5 and the gray-scale value of the gray-scale image data at row 0 and column 1. Therefore, in this step, the gray-scale value of each sub-pixel different from the first relation of the present embodiment can be obtained by the second relation, and in the process of displaying each sub-pixel by using the gray-scale value obtained by the second relation, each sub-pixel can be divided into different display areas which can more clearly correspond to the rows and columns of gray image data, that is, the process of step S220 described below is performed.
S220, determining a second display mode of each sub-pixel according to a second relational expression, and regarding two adjacent sub-pixels in adjacent even sub-pixel columns and one or two sub-pixels positioned on two sides of a central connecting line of the two adjacent sub-pixels in odd sub-pixel columns positioned between the adjacent even sub-pixel columns as a second display area; or two adjacent sub-pixels in the same sub-pixel column and one or two sub-pixels on two sides of the central connecting line of the two sub-pixels are commonly regarded as a second display area.
In other words, as shown in fig. 7, the second display area of the present embodiment may include four sub-pixels a 1 ～A 4 May also include three sub-pixels C at the edge 1 ～C 3 May also include B at the corner 1 And B 2 . As can be seen from fig. 7, the second display mode of the present embodiment still enables each sub-pixel to form a diamond-shaped second display area with 8 rows by 8 columns, so as to restore the gray image data with 8 rows by 8 columns.
In A way 1 ～A 4 The second display region is formed as an example, sub-pixel A 1 And A 3 Respectively in columns 0 and 2, i.e. sub-pixel A 1 And sub-pixel A 3 The adjacent sub-pixels in the adjacent even columns are the sub-pixel columns of the 1 st column. In sub-pixel A 1 And sub-pixel A 3 Sub-pixel A based on the centerline in the row direction 2 And sub-pixel A 4 Is a sub-pixel located on both sides of the center line in a sub-pixel row of an odd-numbered row (row 1), and therefore, four sub-pixels A 1 ～A 4 The second display area AA of the present embodiment is formed.
In another specific example, three sub-pixels C are arranged at the edge 1 ～C 3 The second display area CC' is formed as an example, and the sub-pixel C 1 And sub-pixel C 3 Sub-pixel C is located in the same odd sub-pixel column (15 th odd sub-pixel column) 1 And sub-pixel C 3 Extending in the column direction, C in this structure 3 For the sub-pixels located to the left of the center line, since the several sub-pixels are located at the right edge of the entire sub-pixel array, there are no sub-pixels to the right of the center line, so in this example, three sub-pixels C are used 1 ～C 3 Collectively, the display area is regarded as one second display area CC. In another example, two sub-pixels B 1 And sub-pixel B 2 In the lower right corner of the overall array of subpixels, subpixel B is configured as follows 1 And sub-pixel B 2 Collectively, the second display area BB. For the second display mode of this embodiment, when each sub-pixel displays a gray scale value determined by the second relational expression, the adjacent sub-pixels can realize pixel sharing, so that the light mixing effect can be improved, and the display effect can be further improved.
Therefore, for the preset driving mode of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving mode can be determined by the second relation, and the second display mode corresponding to the relation and the gray image data can be determined by the division of the second display area, so that the process of determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data is completed. In the process, the gray scale values of all the sub-pixels can be determined according to the second relation and the gray image data, the gray image data can be effectively restored by the determined gray scale values of all the sub-pixels, further, the three primary color image data can be restored by the determined gray scale values of all the sub-pixels, and the display effect is ensured.
In the process of determining and displaying the gray scale values of the sub-pixels according to the second relation of the preset driving mode and the second display mode, as shown in fig. 7, for the sub-pixels located in the right edge area and the lower edge area, the sub-pixels at these positions do not form a complete second display area, and the sub-pixels at these positions may lose the brightness of a part of the original image after displaying due to the lack of the sub-pixels shared by the sub-pixels.
Thus, to avoid the above problems, in an alternative embodiment, the method further comprises:
and compensating the gray scale value of the sub-pixel positioned in the N row or the 2N-1 column by using a preset compensation threshold value so as to ensure that the brightness is unchanged and further ensure the reduction effect.
In a specific example, as shown in fig. 7, the second display area CC lacks the brightness (gray level value) of one sub-pixel compared with the complete second display area AA, and the missing gray level value is obtained by calculating the difference valueThe missing gray-scale value is then compensated to the sub-pixel nearest to the missing sub-pixel, e.g. the missing gray-scale value is compensated to sub-pixel C at the side 1 And C 3 And thus, the reduction accuracy is ensured.
In another specific example, as shown in fig. 7, the second display area BB lacks the brightness (gray-scale value) of two sub-pixels compared with the entire second display area AA, and the missing sub-pixel brightness value is obtained by calculating the difference value to obtain the missing gray-scale value, and then compensating the missing gray-scale value to the sub-pixel nearest to the missing sub-pixel, for example, compensating the missing gray-scale value to the sub-pixel B located at the side 1 And B 2 And thus, the reduction accuracy is ensured.
In this embodiment, the gray scale value of each sub-pixel obtained according to the second relation in the preset driving manner can still restore the gray image data of 8 rows by 8 columns, and the display definition can be further improved by the light mixing borrowing of each sub-pixel.
In another optional embodiment, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
when w% 2= 0,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
when w% 2= 1, sub (h, w) = gray (h, w/2); (3);
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w)2-1) is a gray scale value of gray image data at the (w/2-1) th column of the h-th row; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
In this embodiment, the gray scale value of each sub-pixel obtained according to the third relation (3) in the preset driving method can be displayed in the manner shown in fig. 8, in other words, the preset driving method of this embodiment includes: a third relation of gray scale values of the sub-pixels is determined according to the gray image data, and a third display mode of the sub-pixels corresponding to the third relation and the gray image data is determined.
In a specific example, the step of determining the gray-scale value of each sub-pixel corresponding to the preset driving manner as follows further includes:
s210, gray scale values of the sub-pixels can be obtained from the third relation (3) and the gray image data.
In one specific example, sub-pixel A shown in FIG. 8 1 Sub-pixel A 2 Sub-pixel A 3 Sub-pixel A 4 For example, for sub-pixel A 1 Its position in the subpixel array can be expressed as (0, 0), i.e., subpixel A 1 Is located in row 0 and column 0 of the subpixel array. For sub-pixel A 2 Its position in the subpixel array can be expressed as (0, 1), i.e., subpixel A 2 Is located in row 0 and column 1 of the subpixel array. For sub-pixel A 3 Its position in the subpixel array can be expressed as (0, 2), i.e., subpixel A 1 Is located in row 0 and column 2 of the subpixel array. For sub-pixel A 4 Its position in the subpixel array can be expressed as (0, 3), i.e., subpixel A 4 Is located in row 0 and column 3 of the subpixel array. Thus, four sub-pixels A 1 ～A 4 All in the same row but in different columns.
For the preset driving method of the present embodiment, the sub-pixel A1 is regarded as a third display area, and in order to fully restore the gray-scale value of the gray-scale image data corresponding to the third display area, the gray-scale value of each sub-pixel needs to be further determined, that is, the gray-scale value of each sub-pixel is determined according to the third relation.
In this embodiment, the gray scale value is calculated according to the pixel column where the sub-pixel is located.
When the data line to which the sub-pixel is connected is located in an even number column, for example, the sub-pixel located in an even number column such as a 0 th column, a 2 nd column, a 4 th column, etc., the column number of the sub-pixel may be divided by 2, and at this time, the gray scale value of the sub-pixel may be calculated by using the formula of "w% 2= 0" in the third relation. On the other hand, for the sub-pixels located in the odd columns, for example, the sub-pixels located in the odd columns such as the 1 st column, the 3 rd column, and the 5 th column, the number of columns cannot be divided by 2, and at this time, the gray-scale value of the sub-pixel can be calculated by using the formula "w% 2= 1" in the second relational expression. The gray scale value of each sub-pixel obtained by the preset driving mode of the embodiment can completely restore gray image data, and has a good display effect.
Exemplary, as shown in FIG. 8, for subpixel A 1 Its position in the sub-pixel array is (0, 0), the sub-pixel A 1 Located in even columns, and therefore, according to the following relationship;
“w％2＝＝0，
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 * Gray (h+1, w/2-1) "defined subpixel A 1 Gray scale value sub A of (2) 1 The method comprises the following steps:
subA 1 (0,0)＝k 1 *gray(0,0)+k 2 *gray(0,0-1)+k 3 *gray(1,0)+k 4 * gray (1, 0-1), wherein the minimum value of (0/2-1) is 0, i.e. (0/2-1) =0,
sub-pixel a 1 The gray scale values of (2) are:
subA 1 (0,0)＝k 1 *gray(0,0)+k 2 *gray(0,0)+k 3 *gray(1,0)+k 4 * Gray (1, 0), where k 1 ～k 4 Is a configurable parameter, and can be adjusted within the range of 0 to 1.
That is, in such a preset driving modeNext, sub-pixel a obtained by calculation 1 The gray scale value of the gray image data at row 0 and column 0 in fig. 5 is correlated with the gray scale value of the gray image data at row 1 and column 0.
Also for example, for subpixel A 2 Its position in the subpixel array is (0, 1), in the odd columns, and therefore according to the third relationship: sub-pixel a determined by "w% 2= 1, sub (h, w) = gray (h, w/2)" 2 Gray scale value sub A of (2) 2 The method comprises the following steps:
subA 2 (0,1)＝gray(0,1/2)＝gray(0,0)。
that is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 2 The gray scale value of (2) coincides with the gray scale value of gray image data at row 0 and column 0 in fig. 5.
Therefore, the gray scale value of each sub-pixel can still be determined by the third relation, and each sub-pixel displaying according to the determined gray scale value can be displayed in the third display mode, that is, the process of step S220 described below is performed.
S220, determining a third display mode of each sub-pixel according to the third relation, and regarding the sub-pixels positioned below in the sub-pixel row as third display areas respectively.
In other words, as shown in fig. 8, the third display area of the present embodiment includes only one sub-pixel, and since the same row of the present embodiment is defined as two adjacent sub-pixel rows to which the data line is connected, the sub-pixel forming the third display area of the present embodiment is a sub-pixel in a sub-pixel row located below in the two sub-pixel rows, that is, if expressed in an arrangement manner of 16 rows by 16 columns of sub-pixels, the sub-pixels are sequentially divided into 0 th row, 1 st row, 2 nd row, and 3 rd row … … th row, wherein sub-pixels in odd-numbered sub-rows such as 1 st row, 3 rd row, and 5 th row are respectively used as the third display area. As shown in fig. 8, sub-pixel a 1 Located in the third display area AA 1 Is the center position of subpixel A 3 Located in the third display area AA 2 Is a position of (c).
In this embodiment, although only the sub-pixels in the sub-rows are used as the third display area, actually each sub-pixel (including the sub-pixels not used as the third display area) needs to perform the calculation of the gray scale value according to the third relation, that is, the determination of the third display area in this embodiment is performed to achieve the division corresponding to the formation of the gray image data, so as to achieve the clearer corresponding relation. As can be seen from fig. 8, the second display mode of the present embodiment still enables each sub-pixel to form a diamond-shaped second display area with 8 rows by 8 columns, so as to restore the gray image data with 8 rows by 8 columns.
Therefore, for the preset driving mode of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving mode can be determined by the third relation, and the third display mode corresponding to the relation and the gray image data can be determined by the division of the third display area, so that the process of determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data is completed. In the process, gray image data can be effectively restored, and tricolor image data can also be restored, so that the display effect is ensured.
In another optional embodiment, the determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data further includes:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
when w% 2= 0,
sub(h,w)＝gray(h,w/2)；
when w% 2= 1,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1) (4)；
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; k1, k2, k3 and k4 are constants; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
In this embodiment, the gray scale value of each sub-pixel obtained according to the fourth relation (4) in the preset driving method can be displayed in the manner shown in fig. 9, in other words, the preset driving method of this embodiment includes: a fourth relation of gray scale values of the sub-pixels is determined according to the gray image data, and a fourth display mode of the sub-pixels corresponding to the fourth relation and the gray image data is determined.
In a specific example, the step of determining the gray-scale value of each sub-pixel corresponding to the preset driving manner as follows further includes:
s210, gray scale values of the sub-pixels can be obtained from the fourth relation (4) and the gray image data.
In one specific example, sub-pixel A shown in FIG. 9 1 Sub-pixel A 2 Sub-pixel A 3 Sub-pixel A 4 For example, for sub-pixel A 1 Its position in the subpixel array can be expressed as (0, 0), i.e., subpixel A 1 Is located in row 0 and column 0 of the subpixel array. For sub-pixel A 2 Its position in the subpixel array can be expressed as (0, 1), i.e., subpixel A 2 Is located in row 0 and column 1 of the subpixel array. For sub-pixel A 3 Its position in the subpixel array can be expressed as (0, 2), i.e., subpixel A 1 Is located in row 0 and column 2 of the subpixel array. For sub-pixel A 4 Its position in the subpixel array can be expressed as (0, 3), i.e., subpixel A 4 Is located in row 0 and column 3 of the subpixel array.
For the preset driving method of the present embodiment, the sub-pixel A1 is regarded as a fourth display area, and in order to completely restore the gray-scale value of the gray-scale image data corresponding to the fourth display area, the gray-scale value of each sub-pixel needs to be further determined, that is, the gray-scale value of each sub-pixel is determined according to the fourth relation.
In this embodiment, the gray scale value is calculated according to the pixel column where the sub-pixel is located.
When the data line to which the sub-pixel is connected is located in an even number column, for example, the sub-pixel located in an even number column such as a 0 th column, a 2 nd column, a 4 th column, etc., the column number of the sub-pixel may be divided by 2, and at this time, the gray scale value of the sub-pixel may be calculated by using the formula of "w% 2= 0" in the third relation. On the other hand, for the sub-pixels located in the odd columns, for example, the sub-pixels located in the odd columns such as the 1 st column, the 3 rd column, and the 5 th column, the number of columns cannot be divided by 2, and at this time, the gray-scale value of the sub-pixel can be calculated by using the formula "w% 2= 1" in the second relational expression.
The gray scale value of each sub-pixel obtained by the preset driving mode of the embodiment can completely restore gray image data, and has a good display effect.
Exemplary, for subpixel A 1 Its position in the sub-pixel array is (0, 0), the sub-pixel A 1 Located in even columns, and therefore, according to the following relationship;
sub-pixel a determined by "w% 2= 0, sub (h, w) = gray (h, w/2)" 1 Gray scale value sub A of (2) 1 The method comprises the following steps:
subA 1 (0,0)＝sub(0,0)＝gray(0,0)。
that is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 1 The gray scale value of (2) coincides with the gray scale value of gray image data at row 0 and column 0 in fig. 5. Also for example, for subpixel A 2 Its position in the subpixel array is (0, 1), in the odd columns, and therefore according to the fourth relationship:
“w％2＝＝1，
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 * Gray (h+1, w/2-1) "defined subpixel A 2 Gray scale value sub A of (2) 2 The method comprises the following steps:
subA 2 (0,1)＝k 1 *gray(0,1/2)+k 2 *gray(0,1/2-1)+k 3 *gray(0+1,1/2)+k 4 *gray(0+1,1/2-1)，
wherein the minimum value of (w/2-1) is 0, i.e., (1/2-1) is taken as 0. The operation of (w/2) is rounded down, i.e., (1/2) is taken as 0.
Sub-pixel a 2 The gray scale values of (2) are:
subA 2 (0,1)＝k 1 *gray(0,0)+k 2 *gray(0,0)+k 3 *gray(1,0)+k 4 *gray(1,0)；
wherein k is 1 ～k 4 Is a configurable parameter, and can be adjusted within the range of 0 to 1.
That is, in such a preset driving mode, the sub-pixel a obtained after calculation is performed 2 The gray scale values of (2) are related to the gray scale values of the gray image data at row 0 and column 0 in fig. 5 and to the gray scale values of the gray image data at row 1 and column 0.
Therefore, the gray scale value of each sub-pixel can still be determined by the fourth relation, and each sub-pixel that is displayed according to the determined gray scale value can be displayed in the fourth display mode, that is, the process of step S220 described below is performed.
S220, determining a fourth display mode of each sub-pixel according to the fourth relation, and regarding the sub-pixels positioned above in the sub-pixel row as fourth display areas respectively.
In other words, as shown in fig. 9, the fourth display area of the present embodiment includes only one sub-pixel, and since the same row of the present embodiment is defined as two adjacent sub-pixel rows to which the data line is connected, the sub-pixel forming the fourth display area of the present embodiment is a sub-pixel in a sub-pixel row located above in the two sub-pixel rows, that is, if expressed in an arrangement manner of 16 rows by 16 columns of sub-pixels, the sub-pixels are sequentially divided into 0 th row, 1 st row, 2 nd row, 3 rd row … … th row, and the sub-pixels in even-numbered rows such as 0 th row, 2 nd row, 4 th row are respectively used as the fourth display area. As shown in fig. 9, sub-pixel a 2 Is positioned atFourth display area AA 1 Is located at the center of the mold.
In this embodiment, although only the sub-pixels in the sub-rows are used as the fourth display area, actually each sub-pixel (including the sub-pixels not used as the fourth display area) needs to perform the calculation of the gray scale value according to the fourth relation, that is, the determination of the fourth display area in this embodiment is performed to achieve the division corresponding to the formation of the gray image data, so as to achieve the clearer corresponding relation. As can be seen from the gray image data shown in fig. 9 and 5, the fourth display mode of the present embodiment still enables each sub-pixel to form a diamond-shaped fourth display area with 8 rows by 8 columns, so as to restore the gray image data with 8 rows by 8 columns.
Therefore, for the preset driving mode of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving mode can be determined by the fourth relation, and the fourth display mode corresponding to the relation and the gray image data can be determined by the division of the fourth display area, so that the process of determining the gray scale value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data is completed. In the process, gray image data can be effectively restored, and tricolor image data can also be restored, so that the display effect is ensured.
The embodiment of the invention determines the gray scale value of each sub-pixel through different preset driving modes by different relational expressions and display modes, and for different preset driving modes, in the process of determining the gray scale value further determined according to the gray image data, the display modes described in the embodiment can be used for realizing the correspondence with the gray image data. That is, the first display mode, the second display mode, the third display mode and the fourth display mode in the above embodiment of the present invention are exemplary processes for determining the gray scale value according to the gray image data and the preset driving mode, and those skilled in the art can omit or adjust the process according to the actual application, so as to implement that the gray scale value of each sub-pixel corresponding to the preset driving mode determined according to the preset driving mode and the gray image data is a design criterion, which is not repeated herein.
Further, the gray scale value of each sub-pixel obtained in the above embodiment of the present invention is performed in step S3, namely:
and S3, driving each sub-pixel to display according to the gray scale value of each sub-pixel.
For example, the process drives each sub-pixel to display correspondingly according to the gray scale values obtained by the different preset driving modes. For example, the gray-scale value of the sub-pixel is obtained by using the first relation in the above embodiment, and each sub-pixel is driven to display by using the gray-scale value, and further, the line and the line of the gray image data may be restored by using the first display method corresponding to the first relation. For example, the gray-scale value of each sub-pixel is obtained by using the second relation in the above embodiment, and each sub-pixel is driven to display by using the gray-scale value, and further, a second display method corresponding to the second relation may be employed to restore the rows and columns of the gray image data. For example, the third relational expression and the fourth relational expression may be used to obtain the gray scale value of the corresponding relational expression and drive the sub-pixel. Because each preset driving mode of the embodiment of the invention can restore the gray scale value of each position corresponding to the gray image data, the embodiment of the invention can effectively restore the gray image data according to the gray image data and the gray scale value of each sub-pixel corresponding to the preset driving mode determined by the preset driving mode, avoids the loss of the color image data in the monochrome display process, can excellently restore the color image data, and has the characteristics of good display effect and high monochrome display definition.
In accordance with the above-mentioned monochrome display method, another embodiment of the present invention provides a monochrome display device, where the monochrome display device drives sub-pixels arranged in 2N rows by 2N columns according to received N rows by N columns of three primary color image data, and as shown in fig. 2, the sub-pixels located in even columns and the sub-pixels located in odd columns are staggered in the row direction;
as shown in fig. 10, the monochrome display device includes:
the image data conversion module is used for converting the three primary color image data into gray image data of N rows by N columns;
a sub-pixel gray scale value module, configured to determine a gray scale value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and the sub-pixel driving module is used for driving each sub-pixel to display according to the gray scale value of each sub-pixel.
The monochrome display device provided by the embodiment of the invention can effectively restore gray image data, avoids color image data loss in the monochrome display process, can excellently restore color image data, and has the characteristics of good display effect and high monochrome display definition.
It should be noted that, the shape and size of each sub-pixel in the sub-pixel arrangement structure shown in the drawings are only one example of the present invention, and those skilled in the art select the shape and size of the corresponding sub-pixel according to practical applications, so that the pixel arrangement structure of the present embodiment is adopted as a design criterion, and will not be described herein. In an alternative embodiment, the monochrome display device of this embodiment includes N rows of scan lines and 2N columns of data lines, where two adjacent rows of sub-pixels connected to the same scan line are considered to be located in the same row in the preset driving manner, so that the N rows by N columns of gray image data of the original embodiment are facilitated.
In an alternative embodiment, the sub-pixel gray level module obtains the gray level of each sub-pixel in different preset driving modes. For example, according to the first, second, third and fourth different relations in the above embodiment of the present invention, gray scale values corresponding to the different relations are determined, and each sub-pixel is driven to display according to the obtained gray scale values.
The preset driving method in this embodiment corresponds to the above method, and is not described herein.
In an alternative embodiment, the display device further includes a monochrome display circuit, and the sub-pixel driving module drives each sub-pixel to display through the monochrome display circuit.
In this embodiment, for the display device under manufacture, for example, the semi-finished display module, a monochrome display circuit may be directly manufactured to ensure that the display device after processing has a monochrome display function. In an alternative embodiment, the finished display device may be an AR display device or a VR display device.
In an alternative embodiment, the display device further comprises a monochromatic filter. Based on the single-color display circuit, the sub-pixel driving module of the display device drives each sub-pixel to display through the single-color display circuit, each sub-pixel emits light under driving, and the light rays realize single-color display of emergent light through the single-color filter. In a specific example, the monochrome filter of the present embodiment is green or white, so that high-luminance application of the monochrome display device can be realized.
In another specific example, the display device of the present embodiment further includes a color display circuit and a monochrome display circuit, wherein each subpixel is driven to display by the color display circuit, and the color display circuit or the monochrome display circuit is switched by the switching circuit.
In this example, for a display device under manufacture, such as a semi-finished display module, the semi-finished display module may be manufactured to include a monochrome display circuit, a color display circuit, and a switching circuit, the display performance of the display device being determined according to the process requirements of the back end.
That is, the circuit of the monochrome display device and the circuit of the color display device of the present application may be designed to be the same circuit, and the display requirement in the subsequent process may be satisfied only by the switching circuit. Alternatively, if the back-end processing requires the production of a color display device, the driving circuit may be switched to the color display circuit by the switching circuit, and further, the color filter may be provided as the color filter, so that the color display device according to the embodiment of the present application may be produced.
Therefore, the embodiment of the invention can reduce the manufacturing cost of the front-end process and improve the manufacturing efficiency of manufacturing different display performances (such as single color or color display) by the circuit design with the color display circuit and the single color display circuit.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (17)

1. The monochrome display method is characterized by being applied to a monochrome display device, wherein the monochrome display device drives sub-pixels arranged in 2N rows by 2N columns according to received three-primary-color image data of N rows by N columns to display, and the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are staggered in the row direction;
the method comprises the following steps:
converting the three primary color image data into N rows by N columns of gray image data;
Determining gray scale values of all sub-pixels corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and driving each sub-pixel to display according to the gray scale value of each sub-pixel.
2. The method of claim 1, wherein the monochrome display device comprises N rows of scan lines and 2N columns of data lines, wherein two adjacent rows of subpixels that access the same scan line are considered to be located in the same row in the preset driving mode.
3. The method of claim 2, wherein determining the gray scale value of each sub-pixel corresponding to the preset driving scheme based on the preset driving scheme and the gray image data further comprises:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
sub(h,w)＝gray(h,w/2)；
wherein, (w/2) operations round down; h is E [0, N-1]; w is [0, (2N-1) ];
sub (h, w) is the gray scale value of the h row and w column sub-pixels;
gray (h, w/2) is a gray scale value of gray image data of the h-th row (w/2) th column.
4. The method of claim 2, wherein determining the gray scale value of each sub-pixel corresponding to the preset driving scheme based on the preset driving scheme and the gray image data further comprises:
The gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4;
when w% 2= 1, sub (h, w) = gray (h, w/2)/4+gray (h-1, w/2)/4;
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h-1, w/2) is the gray scale value of gray image data at the (h-1) th row (w/2) th column.
5. The method according to claim 4, wherein the method further comprises:
and compensating the gray scale value of the sub-pixel positioned in the N row or the 2N-1 column by using a preset compensation threshold value.
6. The method of claim 2, wherein determining the gray scale value of each sub-pixel corresponding to the preset driving scheme based on the preset driving scheme and the gray image data further comprises:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
When w% 2= 0,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
when w% 2= 1, sub (h, w) = gray (h, w/2);
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
7. The method of claim 2, wherein determining the gray scale value of each sub-pixel corresponding to the preset driving scheme based on the preset driving scheme and the gray image data further comprises:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2);
when w% 2= 1,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is the h row (w/2) column Gray scale values of gray image data at the location; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
8. The single-color display device is characterized in that the single-color display device drives sub-pixels arranged in 2N rows by 2N columns to display according to received three-primary-color image data of N rows by N columns, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are staggered in the row direction;
the monochrome display device includes:
the image data conversion module is used for converting the three primary color image data into gray image data of N rows by N columns;
a sub-pixel gray scale value module, configured to determine a gray scale value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data;
and the sub-pixel driving module is used for driving each sub-pixel to display according to the gray scale value of each sub-pixel.
9. The device of claim 8, wherein the monochrome display device comprises N rows of scan lines and 2N columns of data lines, wherein two adjacent rows of subpixels that access a same scan line are considered to be in a same row in the preset driving mode.
10. The apparatus of claim 9, wherein the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
sub(h,w)＝gray(h,w/2)；
wherein, (w/2) operations round down; h is E [0, N-1]; w is [0, (2N-1) ];
sub (h, w) is the gray scale value of the h row and w column sub-pixels;
gray (h, w/2) is a gray scale value of gray image data of the h-th row (w/2) th column.
11. The apparatus of claim 9, wherein the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2)/4+gray (h, w/2-1)/4;
when w% 2= 1, sub (h, w) = gray (h, w/2)/4+gray (h-1, w/2)/4;
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1]; w is [0, (2N-1) ]; (w/2-1) and (h-1) have a minimum value of 0; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h-1, w/2) is the gray scale value of gray image data at the (h-1) th row (w/2) th column.
12. The apparatus of claim 11, wherein the subpixel gray scale value module is further configured to: and compensating the gray scale value of the sub-pixel positioned in the N row or the 2N-1 column by using a preset compensation threshold value.
13. The apparatus of claim 9, wherein the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when the data line accessed by the sub-pixel is located in the even number row, the preset driving mode is as follows:
when w% 2= 0,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
when w% 2= 1, sub (h, w) = gray (h, w/2);
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
14. The apparatus of claim 9, wherein the sub-pixel gray scale value module is further configured to:
the gray scale value of each sub-pixel corresponding to the preset driving mode is determined as follows:
when w% 2= 0, sub (h, w) = gray (h, w/2);
When w% 2= 1,
sub(h,w)＝k 1 *gray(h,w/2)+k 2 *gray(h,w/2-1)+k 3 *gray(h+1,w/2)+k 4 *gray(h+1,w/2-1)；
wherein, (w/2) and (w/2-1) operations round down; h is E [0, N-1 ]]；w∈[0,(2N-1)]The method comprises the steps of carrying out a first treatment on the surface of the (w/2-1) and (h-1) have a minimum value of 0; k (k) 1 、k 2 、k 3 K 4 Is a constant; sub (h, w) is the gray scale value of the h row and w column sub-pixels; gray (h, w/2) is a gray scale value of gray image data at the h-th row (w/2) th column; gray (h, w/2-1) is a gray scale value of gray image data at the h-th row (w/2-1) th column; gray (h+1, w/2) is a gray scale value of gray image data at (h+1) th row (w/2) th column; gray (h+1, w/2-1) is the gray scale value of gray image data at the (h+1) th row and (w/2-1) th column.
15. The device of any one of claims 8 to 14, wherein the monochrome display device further comprises a monochrome display circuit, and the sub-pixel driving module drives each sub-pixel to display through the monochrome display circuit.
16. The apparatus of any one of claims 15, wherein the monochrome display apparatus further comprises a monochrome filter.
17. The device of claim 16, wherein the monochrome display device is an AR display device or a VR display device.
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