CN113793561A

CN113793561A - Monochrome display method and monochrome display device

Info

Publication number: CN113793561A
Application number: CN202111113743.6A
Authority: CN
Inventors: 史天阔; 姬治华; 侯一凡; 刘蕊; 段欣; 孙伟; 张小牤; 张大成
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-14
Anticipated expiration: 2041-09-23
Also published as: CN113793561B

Abstract

The invention discloses a monochrome display method and a monochrome display device. The display method of one embodiment is applied to a monochrome display device, and the monochrome display device drives sub-pixels arranged in 2N rows and 2N columns to display according to received three primary color image data in N rows and N columns, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are arranged in a staggered mode in a row direction; the method comprises the following steps: converting the three primary color image data into gray image data with N rows by N columns; determining 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 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 a monochrome display process, can perfectly restore color image data, and has the characteristics of good display effect and high monochrome display definition.

Description

Monochrome display method and monochrome 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, it is necessary to convert the received color image data into a gray scale value of each sub-pixel in the monochrome display device, and the monochrome display device further drives each sub-pixel according to the gray scale value to perform display. However, in the process of performing monochrome display by the monochrome display device, color image data loss is easy to occur, and the color image data cannot be completely restored, resulting in a problem of poor monochrome display effect.

Disclosure of Invention

The present invention is directed to a display panel, a method for manufacturing the same, and a display device, so as to solve at least one of the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a single-color display method, which is applied to a single-color display device, wherein the single-color display device drives sub-pixels arranged in 2N rows and 2N columns to display according to received three primary color image data of the N rows and the N columns, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are arranged in a staggered manner in a row direction;

the method comprises the following steps:

converting the three primary color image data into gray image data with N rows by N columns;

determining 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 driving each sub-pixel to display according to the gray-scale value of each sub-pixel.

Furthermore, the monochrome display device comprises N rows of scanning lines and 2N columns of data lines, wherein two adjacent rows of sub-pixels connected to the same scanning line are regarded as being positioned 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:

determining the gray-scale value of each sub-pixel corresponding to the preset driving mode as follows:

sub(h,w)＝gray(h,w/2)；

wherein, the (w/2) operation is rounded down; h belongs to [0, N-1 ]; w belongs to [0, (2N-1) ];

sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row;

gray (h, w/2) is a gray scale value of gray image data of the h-th row and (w/2) column.

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, the operations of (w/2) and (w/2-1) are rounded down; h belongs to [0, N-1 ]; w belongs to [0, (2N-1) ]; the minimum value of (w/2-1) and (h-1) is 0; sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row; gray (h, w/2) is a gray-scale value of gray image data at the h-th row and the (w/2) -th column; gray (h-1, w/2) is a gray-scale value of gray image data at the (h-1) th row and (w/2) th column.

Further, the method further comprises:

and compensating the gray-scale value of the sub-pixel positioned on the Nth row or the 2N-1 th column by using a preset compensation threshold value.

when the data lines accessed by the sub-pixels are positioned in even columns, the preset driving mode is as follows:

when w% 2 ═ 0,

sub(h,w)＝k₁*gray(h,w/2)+k₂*gray(h,w/2-1)+k₃*gray(h+1,w/2)+k₄*gray(h+1,w/2-1)；

when w% 2 ═ 1, sub (h, w) ═ gray (h, w/2);

wherein, the operations of (w/2) and (w/2-1) are rounded down; h is an element of [0, N-1]]；w∈[0,(2N-1)](ii) a The minimum value of (w/2-1) and (h-1) is 0; k is a radical of₁、k₂、k₃And k₄Is a constant; sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row; gray (h, w/2) is a gray-scale value of gray image data at the h-th row and the (w/2) -th column; gray (h, w/2-1) is the gray scale value of the gray image data at the h row and the (w/2-1) column; gray (h +1, w/2) is a gray-scale value of gray image data at the (h +1) th row and (w/2) th column; gray (h +1, w/2-1) is a gray-scale value of gray image data at the (h +1) th row and the (w/2-1) th column.

when w% 2 is 0, sub (h, w) gray (h, w/2);

when w% 2 ═ 1,

wherein the (w/2) and (w/2-1) operations are rounded down；h∈[0,N-1]；w∈[0,(2N-1)](ii) a The minimum value of (w/2-1) and (h-1) is 0; k is a radical of₁、k₂、k₃And k₄Is a constant; sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row; gray (h, w/2) is a gray-scale value of gray image data at the h-th row and the (w/2) -th column; gray (h, w/2-1) is the gray scale value of the gray image data at the h row and the (w/2-1) column; gray (h +1, w/2) is a gray-scale value of gray image data at the (h +1) th row and (w/2) th column; gray (h +1, w/2-1) is a gray-scale value of gray image data at the (h +1) th row and the (w/2-1) th column.

The invention provides a monochromatic display device, which drives sub-pixels arranged in 2N rows and 2N columns according to received three primary color image data of N rows and N columns for display, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are arranged in a staggered mode 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;

the sub-pixel gray-scale value module is used for determining the 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 sub-pixel gray scale value module is further configured to:

sub(h,w)＝gray(h,w/2)；

Further, the sub-pixel gray scale value module is further configured to:

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;

Further, the sub-pixel gray scale value module is further configured to: and compensating the gray-scale value of the sub-pixel positioned on the Nth row or the 2N-1 th column by using a preset compensation threshold value.

Further, the sub-pixel gray scale value module is further configured to:

when w% 2 ═ 0,

when w% 2 ═ 1, sub (h, w) ═ gray (h, w/2);

wherein, the operations of (w/2) and (w/2-1) are rounded down; h is an element of [0, N-1]]；w∈[0,(2N-1)](ii) a The minimum value of (w/2-1) and (h-1) is 0; k is a radical of₁、k₂、k₃And k₄Is a constant; sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row; gray (h, w/2) is a gray-scale value of gray image data at the h-th row and the (w/2) -th column; gray (h, w/2-1) at line h, column (w/2-1)A gray scale value of the color image data; gray (h +1, w/2) is a gray-scale value of gray image data at the (h +1) th row and (w/2) th column; gray (h +1, w/2-1) is a gray-scale value of gray image data at the (h +1) th row and the (w/2-1) th column.

Further, the sub-pixel gray scale value module is further configured to:

when w% 2 is 0, sub (h, w) gray (h, w/2);

when w% 2 ═ 1,

Furthermore, the 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.

Further, the display device further comprises a monochromatic filter.

Further, the display device is an AR display device or a VR display device.

The invention has the following beneficial effects:

according to the technical scheme, the gray image data can be effectively restored according to the gray image data and the gray-scale value of each sub-pixel corresponding to the preset driving mode, which is determined by the preset driving mode, so that the color image data loss in the process of monochrome display is avoided, the color image data can be excellently restored, and the method has the characteristics of good display effect and high monochrome display definition.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a conventional color display device showing a sub-pixel arrangement;

FIG. 2 is a schematic view of the arrangement of sub-pixels 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 of three primary color image data of an embodiment of the present invention;

FIG. 5 shows a schematic representation of gray image data for an embodiment of the 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 the first preset driving mode according to an embodiment of the present invention;

fig. 10 is a schematic view showing a structural frame of a monochrome display device according to a second embodiment of the present invention.

Detailed Description

Fig. 1 shows a sub-pixel arrangement structure of a conventional color display device, as shown in fig. 1, adjacent blue sub-pixels B and red sub-pixels R in the same row are alternately arranged, adjacent blue sub-pixels and red sub-pixels in the same column are alternately arranged to form red-blue sub-pixel columns, a green sub-pixel column is disposed between adjacent red-blue sub-pixel columns, and each green sub-pixel G of the green sub-pixel column and each sub-pixel (blue sub-pixel B or red sub-pixel R) in the red-blue sub-pixel column are alternately arranged in a row direction. For the sub-pixel arrangement structure, through the staggered arrangement of the red sub-pixel R and the blue sub-pixel B, the color of the sub-pixels can be borrowed during color display, the whole number of the sub-pixels can be reduced under the condition of not damaging the definition of a display panel, and therefore the purpose of developing a display product with higher resolution under the same process is achieved.

In the prior art, the arrangement structure of the sub-pixels of the monochrome display device is the same as that of fig. 1 in consideration of development cost, so that the monochrome substrate design circuit is the same as the color substrate design circuit. Based on the sub-pixel arrangement structure of the color display in fig. 1, the monochrome display device in the embodiment is formed by replacing the color filter in the color display device with the green filter, so that the development cost can be effectively saved.

When the monochrome display device uses the sub-pixel arrangement structure shown in fig. 2 to perform monochrome display, all the green sub-pixels G can achieve the highest brightness application, so that the green sub-pixels during monochrome display are fully used. However, the following problems are encountered: due to the staggered and irregular arrangement of the sub-pixels in the monochrome display device, color image data loss is easy to occur in the process of monochrome display 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 apparatus to solve the above problems.

A first embodiment of the present invention provides a monochrome display method, which is applied to a monochrome display device that drives sub-pixels arranged in 2N rows by 2N columns for display according to received three primary color image data in N rows by N columns, wherein sub-pixels positioned in even columns and sub-pixels positioned in odd columns are arranged in a row direction in a staggered manner.

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 gray image data with N rows by N columns;

s2, 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;

and S3, driving each sub-pixel according to the gray-scale value of each sub-pixel to display.

The monochrome display device of the embodiment of the invention is arranged by the sub-pixel structure shown in fig. 2, and when monochrome display is carried out, the received three primary color image data of N rows and N columns is converted into gray image data of N rows and N columns.

For example, the structures of the sub-pixels of the monochrome display device according to the embodiment of the present invention are arranged as shown in fig. 2, and the sub-pixels located in the even columns and the sub-pixels located in the odd columns are arranged in a staggered manner in the row direction.

In an optional embodiment, the monochrome display device includes N rows of scanning lines and 2N columns of data lines, wherein two adjacent rows of sub-pixels connected to the same scanning line are regarded as being 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 sub-pixels in the same column are all connected by one data line Source, and the monochrome display device in this embodiment has 16 data lines respectively connected to the 16 sub-pixel columns. For 16 sub-pixel rows, the present embodiment employs 8 scan lines, for example, Gate lines Gate access the sub-pixels arranged in the row direction, so that one scan line of the present embodiment accesses two adjacent rows of sub-pixels to make the sub-pixel rows in 2N rows satisfy the N rows of scan lines of the present embodiment. For the connection manner of the scan lines, the two adjacent sub-pixel rows accessed by the same scan line are regarded as the same row in this embodiment, that is, in the sub-pixel arrangement structure shown in fig. 2, there are 8 sub-pixel rows and 16 sub-pixel columns in this embodiment.

Illustratively, as shown in fig. 2, the first sub-pixel column at the leftmost position is defined as the 0 th column, and then the sub-pixel array is sequentially the 0 th column, the 1 st column, the 2 nd column, and … … the 15 th column from left to right. Furthermore, the first sub-pixel row and the second sub-pixel row at the top are simultaneously taken as the sub-pixels of the first row, and the sub-pixel array sequentially comprises a 0 th row, a1 st row, a2 nd row and an … … th row 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.

The monochrome display method according to the embodiment of the present invention will be specifically described by taking the sub-pixel arrangement structure shown in fig. 2 as an example:

and S1, converting the three primary color image data into gray image data with N rows by N columns.

When monochrome display is performed, the monochrome display device needs to determine the gray scale value of each sub-pixel in monochrome display 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 × N columns. Illustratively, when N is 8, the color image data of the present embodiment is three primary color (red, green, and blue) image data of 8 rows by 8 columns. Since the gray scale values of the subpixels of the monochrome display do not match the gray scale values of the three primary color image data, in the present embodiment, it is necessary to convert the received three primary color image data into the gray image data of N rows × N columns shown in fig. 5.

In a specific example, as shown in fig. 4, the first column of three primary color image data located at the leftmost side is defined as the 0 th column, and the three primary color image data are, in order from left to right, the 0 th column, the 1 st column, the 2 nd column, and the … … 7 th column. Further, when the third primary color image data line positioned on the uppermost line is defined as the 0 th line, the subpixel array is defined as the 0 th line, the 1 st line, the 2 nd line, and the … … 7 th line from top to bottom.

In one specific example, the three primary color image data may be converted into gray image data using a gray scale conversion formula. Illustratively, the formula for gray scale conversion is: gray ═ R0.299 + G0.587 + B0.114. Where Gray is the Gray level of the Gray image data, R, G and B are respectively expressed as the Gray level of each color in the three primary color image data of the present embodiment.

As is clear from fig. 5, since the gray image data is similarly N rows × N columns, and the number of rows and columns matches the number of columns of the three primary image data, the gray image data after conversion can completely restore the three primary image data, and the display effect can be ensured without causing loss of the image data. Illustratively, the gray image data of row 0, column 0 in fig. 5 can characterize the three primary image data at row 0, column 0 in fig. 4.

In a specific example, each gray image data column and each gray image data row in the gray image data are defined in accordance with the definition of the sub-pixel rows and columns, i.e., the gray image data column located at the leftmost side is the 0 th column, and therefore, the gray image data columns are the 0 th column, the 1 st column, the 2 nd column, and the … … the 7 th column from left to right. Similarly, the row of the gray image data located at the top is the 0 th row, and the gray image data is the 0 th row, the 1 st row, the 2 nd row, and the … … th row 7 in this order from top to bottom, thereby forming the gray image data arranged in 8 rows by 8 columns in this example.

And S2, 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.

For example, fig. 6 to 9 show the display modes of the sub-pixels under different preset driving modes, that is, different gray-scale values may exist in the sub-pixels for the different preset driving modes, but the gray-scale values of the sub-pixels determined according to each preset driving mode can restore the gray-scale image data, so that the three-primary-color image data can be restored. That is, according to the gray scale values of the sub-pixels determined by the preset driving method of the present embodiment, the sub-pixels can display the gray scale values in the manner shown in fig. 6 to 9, so as to form different display manners corresponding to the 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:

sub(h,w)＝gray(h,w/2) (1)；

In the present 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 the present embodiment includes: a first relational expression of the gray scale value of each sub-pixel and a first display mode corresponding to the first relational expression and each sub-pixel corresponding to 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 comprises:

s210, the gray scale value of each sub-pixel can be obtained from the first relational expression (1) and the gray image data.

In one specific example, with subpixel A shown in FIG. 6₁And a sub-pixel A₂For example, for sub-pixel A₁Its position in the sub-pixel array can be represented as (0,0), i.e. the sub-pixel A₁Is located in the 0 th row and the 0 th column in the sub-pixel array. For sub-pixel A₂Its position in the sub-pixel array can be represented as (0,1), i.e. the sub-pixel A₂Is located in the 0 th row and the 1 st column in the sub-pixel array. Thus, the sub-pixel A₁And a sub-pixel A₂Although arranged obliquely, both are connected to the same scan line, i.e. sub-pixel A₁And a sub-pixel A₂All located in the same row but in different columns.

To fully restore the gray-scale value of the gray image data at that location, subpixel A₁And a sub-pixel A₂The respective gray-scale values need to be further determined, i.e. the sub-pixel a can be determined according to the first relation mentioned above₁And a sub-pixel A₂The respective gray scale values.

Illustratively, for sub-pixel A₁A subpixel a whose position in the subpixel array is (0,0) and which is determined according to the relation (1) sub (h, w) ═ gray (h, w/2)₁Gray scale value sub A of₁Comprises the following steps:

sub A₁(0,0) ═ gray (0,0), that is, the subpixel a₁Is the gray scale value of the gray image data of row 0 and column 0 in fig. 5.

As another example, for sub-pixel A₂The position of the subpixel A in the subpixel array is (0,1), and the subpixel A is determined according to the first relation (1)₂Gray scale value sub A of₂Comprises the following steps:

sub A₂in this embodiment, the operation of (1/2) is rounding down, i.e. 0, so that the sub-pixel a is a sub-pixel a (0,1) ═ gray (0,1/2) ═ gray (0,0)₂Is 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. 6₁The position of the subpixel in the subpixel array is (7,14), and the subpixel B is determined according to the relation (1)₁Gray scale value sub B₁Comprises the following steps:

sub (7,14) gram (7,14/2), that is, the sub-pixel B₁Is the gray scale value of the gray image data of row 7 and column 7 in fig. 6.

As another example, for the sub-pixel B in the same row as the sub-pixel B1 shown in FIG. 6₂The position of the subpixel B in the subpixel array is (7,15), and the subpixel B is determined according to the relation (1)₁Gray scale value sub B₁Comprises the following steps:

the sub (7,15) -gray (7,15/2) -gray (7,7) and (15/2) are rounded down, i.e., 7, so that the sub-pixel B is the sub-pixel B₂Is the gray scale value of the gray image data of row 7 and column 7 in 5.

In this step, each sub-pixel can determine its own gray-scale value according to the first relational expression, 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 of displaying the sub-pixels with the calculated gray-scale values, thereby avoiding loss of the gray image data and ensuring the restoration effect of the three primary color image data.

Further, after obtaining the gray-scale values of the sub-pixels according to the first relational expression, the sub-pixels can be divided into different display regions, and the display regions can more clearly correspond to the rows and columns of the gray image data, that is, the following process of step S220 is performed.

S220, determining a first display mode of each sub-pixel according to the first relational expression, and regarding two sub-pixels which are positioned in the same sub-pixel row and are positioned in adjacent sub-pixel columns as a display area, wherein the adjacent display areas are mutually independent.

Since one scan line is connected to two adjacent rows of sub-pixels, the sub-pixels connected to the same scan line are set to be in the same row, i.e. sub-pixel a₁And a sub-pixel A₂Are all located in row 0. Wherein, the sub-pixel A₁At column 0, sub-pixel A₂In the 1 st column, the sub-pixel A₁And subpixel A2 is located in an adjacent subpixel column, i.e., subpixel A is shown in FIG. 6₁And a sub-pixel A₂Is a display area AA.

Illustratively, as shown in fig. 6, each sub-pixel forms a display region of a parallelogram arranged in 8 rows by 8 columns. Although one display area includes two sub-pixels disposed obliquely with respect to each other, the two sub-pixels are located in the same row and in different columns. As shown in FIG. 6, two sub-pixels A₁And a sub-pixel A₂The 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 image data at row 0 and column 0 in fig. 5, so that the gray image data at the corresponding position can be restored.

In another example, two sub-pixels B₁And a sub-pixel B₂Forming a display area BB having a gray scale value similar to that of the display area BBThe grayscale values of the BB' region of the rectangular gray image data at 7 rows and 7 columns correspond.

Therefore, for the preset driving method of this embodiment, the gray scale value of each sub-pixel corresponding to the preset driving method can be determined by the first relational expression, and the display method corresponding to the relational expression and the gray image data can be determined by dividing the display area, so as to complete the process of determining the gray scale value of each sub-pixel corresponding to the preset driving method according to the preset driving method and the gray image data. In the process, the gray-scale values of all the sub-pixels can be determined according to the first relational expression and the gray image data, the determined gray-scale values of all the sub-pixels can effectively restore the gray image data, and further the determined gray-scale values of all the sub-pixels can restore the three-primary-color image data to ensure the display effect.

In another optional embodiment, the determining the gray scale value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data further includes:

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)

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 relational expression of the gray scale value of each sub-pixel is determined according to the gray image data, and a second display mode corresponding to the second relational expression and each sub-pixel corresponding to the gray image data is determined.

s210, the gray scale value of each sub-pixel can be obtained from the second relational expression (2) and the gray image data.

In one specific example, with subpixel A shown in FIG. 7₁Sub-pixel A₂Sub-pixel A₃Sub-pixel A₄For example, for sub-pixel A₁Its position in the sub-pixel array can be represented as (0,0), i.e. the sub-pixel A₁Is located in the 0 th row and the 0 th column in the sub-pixel array. For sub-pixel A₂Its position in the sub-pixel array can be represented as (0,1), i.e. the sub-pixel A₂Is located in the 0 th row and the 1 st column in the sub-pixel array. For sub-pixel A₃Its position in the sub-pixel array can be represented as (0,2), i.e. the sub-pixel A₁Is located in the 0 th row and 2 nd column of the sub-pixel array. For sub-pixel A₄Its position in the sub-pixel array can be represented as (0,3), i.e. the sub-pixel A₄Is located in the 0 th row and 3 rd column of the sub-pixel array. Thus, four sub-pixels A₁～A₄All located in the same row but in different columns.

At this time, four sub-pixels A₁～A₄To complete the restoration of the gray-scale value of the gray image data corresponding to the display area, four sub-pixels A are further determined₁～A₄I.e. determining the four sub-pixels a according to the second relation mentioned above₁～A₄The respective gray scale values.

In this embodiment, the gray level value is calculated according to the pixel row where the sub-pixel is located. For the sub-pixels located in the even-numbered columns, for example, the sub-pixels located in the even-numbered columns such as the 0 th column, the 2 nd column, and the 4 th column, the number of columns may be divided by 2, and in this case, the gray-scale value of the sub-pixel may be calculated by using the formula in the second relational expression when "w% 2 ═ 0". On the other hand, for the sub-pixels located in the odd-numbered columns, for example, the sub-pixels located in the odd-numbered 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 in this case, the gray-scale value of the sub-pixel can be calculated by the formula "when w% 2 is 1" in the second relational expression.

The gray-scale value of each sub-pixel obtained by using the preset driving method of this embodiment improves the problem of zigzag display in the previous embodiment of the present invention when each sub-pixel is displayed with the gray-scale value, and can further improve the display effect on the basis of completely restoring gray-scale image data.

Illustratively, as shown in FIG. 7, for sub-pixel A₁Its position in the sub-pixel array is (0,0), the sub-pixel A₁Are located in the even-numbered columns,

therefore, the sub-pixel a determined according to the relation "w% 2 ═ 0, sub (h, w) ═ gray (h, w/2)"₁The gray scale value subA of₁Comprises the following steps:

subA₁(0,0) ═ gray (0,0), that is, the subpixel a₁Is the gray scale value of the gray image data of row 0 and column 0 in fig. 5.

As another example, for sub-pixel A₂Its position in the sub-pixel array is (0,1), in the odd columns, and therefore according to the second relation:

“w％2＝＝1，sub(h,w)＝gray(h,w/2)/4+gray(h-1,w/2)/4”

determined sub-pixel A₂Gray scale value sub A of₂Comprises the following steps:

subA₂(0,1) ═ gray (0,1/2)/4+ gray (0-1,1/2)/4, and in this example, (h-1) has a minimum value of 0, that is, (0-1) is taken to be 0. The operation of (w/2) is rounding down, i.e., (1/2) is taken to be 0.

Thus, the sub-pixel A is further obtained₂The gray scale value subA of₂Comprises the following steps:

subA₂＝gray(0,1/2)/4+gray(0-1,1/2)/4＝gray(0,0)/4+gray(0,0)/4。

that is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₂Is half of the gray scale value of the gray image data at the 0 th row and the 0 th column in fig. 5. And alsoFor example, for sub-pixel A₃The positions of the sub-pixel arrays are (0,2), the sub-pixel arrays are positioned 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 the subpixel a₃The gray scale value subA of₂Comprises the following steps:

sub A₃(0,2) ═ gray (0,2/2)/4+ gray (0,1/2-1)/4, and in this example, (w/2-1) has a minimum value of 0, that is, (1/2-1) is taken to be 0.

Thus, the sub-pixel A is further obtained₃The gray scale value subA of₃Comprises the following steps:

sub A₃＝gray(0,1)/4+gray(0,0)/4。

that is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₃Is one fourth of the sum of the gray scale value of the gray image data at row 0, column 1 and the gray scale value of the gray image data at row 0, column 0 in fig. 5.

As another example, for sub-pixel A₄Its position in the sub-pixel array is (0,3), in the odd columns, and therefore according to the second relation:

“w％2＝＝1，sub(h,w)＝gray(h,w/2)/4+gray(h-1,w/2)/4”

determined sub-pixel A₄The gray scale value subA of₄Comprises the following steps:

subA₄(0,3) ═ gray (0,3/2)/4+ gray (0-1,3/2)/4, and in this example, (h-1) has a minimum value of 0, that is, (0-1) is taken to be 0. The operation of (w/2) is rounding down, i.e. (3/2) is taken to be 1.

Thus, the sub-pixel A is further obtained₄The gray scale value subA of₄Comprises the following steps:

subA₄＝gray(0,3/2)/4+gray(0-1,3/2)/4＝gray(0,1)/4+gray(0,1)/4。

that is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₄The gray scale value of (1) is a quarter of the sum of the gray scale value of the gray image data at the 0 th row and the 1 st column in fig. 5 and the gray scale value of the gray image data at the 0 th row and the 1 st column. Therefore, in this step, the gray-scale values of the sub-pixels different from the first relational expression of the present embodiment can be obtained by the second relational expression, and in the process of displaying the sub-pixels by using the gray-scale values obtained by the second relational expression, the sub-pixels can be divided into different display regions which can more clearly 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 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 which are positioned at two sides of a central connecting line of the two adjacent sub-pixels in an odd sub-pixel column 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 jointly regarded as the second display area.

In other words, as shown in fig. 7, the second display region of the present embodiment may include four sub-pixels a₁～A₄And may also include three sub-pixels C at the edge₁～C₃And may further include B at the corner₁And B₂. As can be seen from fig. 7, the second display method of the present embodiment still enables each sub-pixel to form a diamond-shaped second display region arranged in 8 rows by 8 columns, so that the gray image data in 8 rows by 8 columns can be restored.

With A₁～A₄The second display region is formed as an example, the sub-pixel A₁And A₃Respectively in the 0 th and 2 nd columns, i.e. sub-pixel A₁And a sub-pixel A₃The adjacent sub-pixels in the adjacent even columns are arranged with the sub-pixel column of the 1 st column in between. With sub-pixel A₁And a sub-pixel A₃With reference to the center line in the row direction, the sub-pixel A₂And a sub-pixel A₄Are sub-pixels located in sub-pixel columns of the odd column (column 1) and located on both sides of the center line, respectively, and thus, four sub-pixels a₁～A₄The second display area AA of the present embodiment is formed.

In another specific example, with three sub-pixels C at the edges₁～C₃Forming a second display region CC' as an example, a sub-pixel C₁And a sub-pixel C₃In the same odd sub-pixel column (the 15 th odd sub-pixel column), the sub-pixel C₁And a sub-pixel C₃In the column direction, C₃For the sub-pixels located at the left side of the center line, since the several sub-pixels are located at the right edge of the whole sub-pixel array, there is no sub-pixel at the right side of the center line, and therefore, in this example, three sub-pixels C are provided₁～C₃Collectively considered as a second display area CC. In another example, two sub-pixels B₁And a sub-pixel B₂In the lower right corner of the entire array of sub-pixels, which will be referred to as sub-pixel B₁And a sub-pixel B₂Collectively considered as a second display area BB. For the second display mode of this embodiment, when each sub-pixel is displayed according to the 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 method of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving method can be determined by the second relation, and the second display method corresponding to the relation and the gray image data can be determined by dividing the second display area, so as to complete the process of determining the gray scale value of each sub-pixel corresponding to the preset driving method according to the preset driving method and the gray image data. In the process, the gray-scale values of all the sub-pixels can be determined according to the second relational expression and the gray image data, the determined gray-scale values of all the sub-pixels can effectively restore the gray image data, and further, the determined gray-scale values of all the sub-pixels can also restore the three-primary-color image data, so that the display effect is ensured.

In the process of determining and displaying the gray-scale values of the sub-pixels according to the second relational expression of the preset driving method and the second display method, as shown in fig. 7, for the sub-pixels located in the right edge region and the lower edge region, the sub-pixels at these positions do not form a complete second display region, and due to the lack of a portion of the sub-pixels shared by the sub-pixels, the sub-pixels lose the brightness of a portion of the original image after being displayed.

Therefore, to avoid the above problem, in an alternative embodiment, the method further comprises:

and compensating the gray-scale value of the sub-pixel positioned in the Nth row or the 2N-1 th 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, compared with the complete second display area AA, the second display area CC lacks a luminance (gray scale value) of one sub-pixel, and the missing luminance value of the sub-pixel can be obtained by calculating a difference value, and then compensating the missing gray scale value to the sub-pixel closest to the missing sub-pixel, for example, compensating the missing gray scale value to the sub-pixel C at the side₁And C₃Thereby ensuring the reduction precision.

In another specific example, as shown in FIG. 7, the second display area BB lacks two sub-pixel brightness values (gray scale values) compared to the entire second display area AA, and the missing sub-pixel brightness value can be obtained by calculating a difference value, and then compensating the missing gray scale value to the sub-pixel closest to the missing sub-pixel, for example, compensating the missing gray scale value to the sub-pixel B at the side₁And B₂Thereby ensuring the reduction precision.

In this embodiment, the gray scale values of the sub-pixels obtained according to the second relational expression in the preset driving method 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 the sub-pixels.

when w% 2 ═ 0,

when w% 2 ═ 1, sub (h, w) ═ gray (h, w/2); (3);

In the present 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 the present embodiment includes: determining a third relational expression of the gray scale value of each sub-pixel according to the gray image data and determining a third display mode corresponding to the third relational expression and each sub-pixel corresponding to the gray image data.

s210, the gray scale value of each sub-pixel can be obtained from the third relation (3) and the gray image data.

In one specific example, with subpixel A shown in FIG. 8₁Sub-pixel A₂Sub-pixel A₃Sub-pixel A₄For example, for sub-pixel A₁Its position in the sub-pixel array may be represented as (0,0), i.e. the sub-pixelPixel A₁Is located in the 0 th row and the 0 th column in the sub-pixel array. For sub-pixel A₂Its position in the sub-pixel array can be represented as (0,1), i.e. the sub-pixel A₂Is located in the 0 th row and the 1 st column in the sub-pixel array. For sub-pixel A₃Its position in the sub-pixel array can be represented as (0,2), i.e. the sub-pixel A₁Is located in the 0 th row and 2 nd column of the sub-pixel array. For sub-pixel A₄Its position in the sub-pixel array can be represented as (0,3), i.e. the sub-pixel A₄Is located in the 0 th row and 3 rd column of the sub-pixel array. Thus, four sub-pixels A₁～A₄All located in the same row but in different columns.

For the preset driving method of this embodiment, the sub-pixel a1 is regarded as a third display area, and in order to completely restore the gray scale value of the gray image data corresponding to the third display area, it is necessary to further determine the gray scale value of each sub-pixel, that is, determine the gray scale value of each sub-pixel according to the third relational expression.

In this embodiment, the gray level value is calculated according to the pixel row where the sub-pixel is located.

When the data line accessed by the sub-pixel is located in an even column, for example, the number of columns of the sub-pixel located in the even columns such as the 0 th column, the 2 nd column, and the 4 th column can be divided by 2, and in this case, the gray-scale value of the sub-pixel can be calculated by using the formula when "w% 2 ═ 0" in the third relation. On the other hand, for the sub-pixels located in the odd-numbered columns, for example, the sub-pixels located in the odd-numbered 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 in this case, the gray-scale value of the sub-pixel can be calculated by the formula "when w% 2 is 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.

Illustratively, as shown in FIG. 8, for sub-pixel A₁Its position in the sub-pixel array is (0,0), the sub-pixel A₁In even columns, and therefore according to the following relationship;

“w％2＝＝0，

sub(h,w)＝k₁*gray(h,w/2)+k₂*gray(h,w/2-1)+k₃*gray(h+1,w/2)+k₄sub-pixel A determined by gray (h +1, w/2-1)'₁The gray scale value subA of₁Comprises the following steps:

subA₁(0,0)＝k₁*gray(0,0)+k₂*gray(0,0-1)+k₃*gray(1,0)+k₄gray (1,0-1), wherein the minimum value of (0/2-1) is 0, i.e. (0/2-1) ═ 0,

then the sub-pixel A₁The gray scale value of (A) is:

subA₁(0,0)＝k₁*gray(0,0)+k₂*gray(0,0)+k₃*gray(1,0)+k₄gray (1,0), wherein k₁～k₄Is a configurable parameter, and can be adjusted within the range of 0-1.

That is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₁And the gray scale value of the gray image data at the 0 th row and the 0 th column in fig. 5 is related to the gray scale value of the gray image data at the 1 st row and the 0 th column.

As another example, for sub-pixel A₂Its position in the sub-pixel array is (0,1), at odd columns, and thus according to a third relationship: sub-pixel a determined by "w% 2 ═ 1, sub (h, w) ═ gray (h, w/2)"₂Gray scale value sub A of₂Comprises the following steps:

subA₂(0,1)＝gray(0,1/2)＝gray(0,0)。

that is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₂Is identical to the gray scale value of the gray image data at the 0 th row and the 0 th column in fig. 5.

Therefore, in this embodiment, the gray-scale value of each sub-pixel can still be determined by the third relational expression, and each sub-pixel displayed according to the determined gray-scale value can be displayed in the third display mode, that is, the following process of step S220 is performed.

And S220, determining a third display mode of each sub-pixel according to the third relational expression, 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 region 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 accessed by the data line, the sub-pixels forming the third display region of the present embodiment are the sub-pixels in the sub-pixel row positioned below the same row of the two sub-pixels, that is, if the arrangement manner of 16 rows × 16 columns of the sub-pixels is shown, the sub-pixels are sequentially divided into 0 th sub-row, 1 st sub-row, 2 nd sub-row, and … … rd sub-row 15 from top to bottom, wherein the sub-pixels in the odd number sub-rows such as the 1 st sub-row, the 3 rd sub-row, and the 5 th sub-row are respectively used as the third display region. As shown in FIG. 8, sub-pixel A₁Located in the third display area AA₁At the central position of sub-pixel A₃Located in the third display area AA₂The position of (a).

In this embodiment, although only the sub-pixels in the row are used as the third display area, each sub-pixel (including the sub-pixels not used as the third display area) actually needs to calculate the gray level value according to the third relation, that is, the third display area is determined by dividing the third display area to correspond to the gray image data, so as to achieve a clearer corresponding relationship. As can be seen from fig. 8, the second display method of the present embodiment still allows each sub-pixel to form a diamond-shaped second display region with 8 rows by 8 columns, so that the gray image data with 8 rows by 8 columns can be restored.

Therefore, for the preset driving method of this embodiment, the gray scale value of each sub-pixel corresponding to the preset driving method can be determined by the third relational expression, and the third display method corresponding to the relational expression and the gray image data can be determined by dividing the third display area, so as to complete the process of determining the gray scale value of each sub-pixel corresponding to the preset driving method according to the preset driving method and the gray image data. The gray image data can be effectively restored in the process, the three-primary-color image data can also be restored, and the display effect is guaranteed.

when w% 2 ═ 0,

sub(h,w)＝gray(h,w/2)；

when w% 2 ═ 1,

sub(h,w)＝k₁*gray(h,w/2)+k₂*gray(h,w/2-1)+k₃*gray(h+1,w/2)+k₄*gray(h+1,w/2-1) (4)；

wherein, the operations of (w/2) and (w/2-1) are rounded down; h belongs to [0, N-1 ]; w belongs to [0, (2N-1) ]; the minimum value of (w/2-1) and (h-1) is 0; k1, k2, k3 and k4 are constants; sub (h, w) is the gray-scale value of the sub-pixel in the w column of the h row; gray (h, w/2) is a gray-scale value of gray image data at the h-th row and the (w/2) -th column; gray (h, w/2-1) is the gray scale value of the gray image data at the h row and the (w/2-1) column; gray (h +1, w/2) is a gray-scale value of gray image data at the (h +1) th row and (w/2) th column; gray (h +1, w/2-1) is a gray-scale value of gray image data at the (h +1) th row and the (w/2-1) th column.

In this embodiment, the gray-scale value of each sub-pixel obtained according to the fourth relational expression (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: determining a fourth relational expression of the gray scale value of each sub-pixel according to the gray image data and determining a fourth display mode corresponding to the fourth relational expression and each sub-pixel corresponding to the gray image data.

s210, the gray scale value of each sub-pixel can be obtained from the fourth relational expression (4) and the gray image data.

In one specific example, with subpixel A shown in FIG. 9₁Sub-pixel A₂Sub-pixel A₃Sub-pixel A₄For example, for sub-pixel A₁Its position in the sub-pixel array can be represented as (0,0), i.e. the sub-pixel A₁Is located in the 0 th row and the 0 th column in the sub-pixel array. For sub-pixel A₂Its position in the sub-pixel array can be represented as (0,1), i.e. the sub-pixel A₂Is located in the 0 th row and the 1 st column in the sub-pixel array. For sub-pixel A₃Its position in the sub-pixel array can be represented as (0,2), i.e. the sub-pixel A₁Is located in the 0 th row and 2 nd column of the sub-pixel array. For sub-pixel A₄Its position in the sub-pixel array can be represented as (0,3), i.e. the sub-pixel A₄Is located in the 0 th row and 3 rd column of the sub-pixel array.

For the preset driving method of this 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 image data corresponding to the fourth display area, it is necessary to further determine the gray scale value of each sub-pixel, that is, determine the gray scale value of each sub-pixel according to the fourth relational expression.

When the data line accessed by the sub-pixel is located in an even column, for example, the number of columns of the sub-pixel located in the even columns such as the 0 th column, the 2 nd column, and the 4 th column can be divided by 2, and in this case, the gray-scale value of the sub-pixel can be calculated by using the formula when "w% 2 ═ 0" in the third relation. On the other hand, for the sub-pixels located in the odd-numbered columns, for example, the sub-pixels located in the odd-numbered 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 in this case, the gray-scale value of the sub-pixel can be calculated by the formula "when w% 2 is 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.

Illustratively, for sub-pixel A₁Its position in the sub-pixel array is (0,0), the sub-pixel A₁In even columns, and therefore according to the following relationship;

sub-pixel a determined by "w% 2 ═ 0, sub (h, w) ═ gray (h, w/2)"₁The gray scale value subA of₁Comprises the following steps:

subA₁(0,0)＝sub(0,0)＝gray(0,0)。

that is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₁Is identical to the gray scale value of the gray image data at the 0 th row and the 0 th column in fig. 5. As another example, for sub-pixel A₂Its position in the sub-pixel array is (0,1), in the odd columns, and therefore according to the fourth relation:

“w％2＝＝1，

sub(h,w)＝k₁*gray(h,w/2)+k₂*gray(h,w/2-1)+k₃*gray(h+1,w/2)+k₄sub-pixel A determined by gray (h +1, w/2-1)'₂Gray scale value sub A of₂Comprises the following steps:

subA₂(0,1)＝k₁*gray(0,1/2)+k₂*gray(0,1/2-1)+k₃*gray(0+1,1/2)+k₄*gray(0+1,1/2-1)，

wherein the minimum value of (w/2-1) is 0, i.e. (1/2-1) is 0. The operation of (w/2) is rounding down, i.e., (1/2) is taken to be 0.

Then the sub-pixel A₂The gray scale value of (A) is:

subA₂(0,1)＝k₁*gray(0,0)+k₂*gray(0,0)+k₃*gray(1,0)+k₄*gray(1,0)；

wherein k is₁～k₄Is a configurable parameter, and can be adjusted within the range of 0-1.

That is, in this preset driving mode, the sub-pixel a obtained after calculation is performed₂Is related to the gray scale value of the gray image data at row 0, column 0 and to the gray scale value of the gray image data at row 1, column 0 in fig. 5.

Therefore, in this embodiment, the gray-scale value of each sub-pixel can still be determined by the fourth relational expression, and each sub-pixel displayed according to the determined gray-scale value can be displayed in the fourth display mode, that is, the following process of step S220 is performed.

And S220, determining a fourth display mode of each sub-pixel according to the fourth relational expression, 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 region 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 accessed by the data line, the sub-pixels forming the fourth display region of the present embodiment are the sub-pixels in the sub-pixel row positioned above in the two sub-pixel rows, that is, if the arrangement manner of 16 rows × 16 columns of sub-pixels is expressed, the sub-pixels are sequentially divided into a 0 th sub-row, a1 st sub-row, a2 nd sub-row, and a 3 rd sub-row … … th sub-row from top to bottom, wherein the sub-pixels in even-numbered sub-rows such as the 0 th sub-row, the 2 nd sub-row, and the 4 th sub-row are respectively used as the fourth display region. As shown in FIG. 9, sub-pixel A₂Located in the fourth display area AA₁The center position of (a).

In this embodiment, although only the sub-pixels in the sub-rows are used as the fourth display area, each sub-pixel (including the sub-pixels not used as the fourth display area) actually needs to calculate the gray scale value according to the fourth relational expression, that is, the fourth display area of this embodiment is determined to realize the division corresponding to the gray image data, so as to realize a clearer correspondence relationship. As can be seen from the gray image data shown in fig. 9 and 5, the fourth display method of the present embodiment still allows each sub-pixel to form a diamond-shaped fourth display region with 8 rows by 8 columns, so that the gray image data with 8 rows by 8 columns can be restored.

Therefore, for the preset driving method of the present embodiment, the gray scale value of each sub-pixel corresponding to the preset driving method can be determined by the fourth relational expression, and the fourth display method corresponding to the relational expression and the gray image data can be determined by dividing the fourth display area, so as to complete the process of determining the gray scale value of each sub-pixel corresponding to the preset driving method according to the preset driving method and the gray image data. The gray image data can be effectively restored in the process, the three-primary-color image data can also be restored, and the display effect is guaranteed.

According to the embodiment of the invention, the gray scale value of each sub-pixel is determined through different preset driving modes through 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 gray image data, the gray image data can be corresponded through the display mode described in the embodiment. That is to say, the first display mode, the second display mode, the third display mode and the fourth display mode of the above embodiment of the present invention are exemplary processes for determining the gray level value according to the gray image data and the preset driving mode, and a person skilled in the art can omit or adjust the processes according to practical applications to implement that determining the gray level value of each sub-pixel corresponding to the preset driving mode according to the preset driving mode and the gray image data is a design criterion, which is not described herein again.

Further, the present invention proceeds to step S3 through the gray-scale values of the sub-pixels obtained in the above embodiment, that is:

Illustratively, in the process, each sub-pixel is driven to perform corresponding display according to the gray-scale values obtained by the different preset driving modes. For example, the gray-scale values of the sub-pixels are obtained by the first relational expression of the above embodiment, and the sub-pixels are driven by the gray-scale values to perform display. For example, the gray-scale values of the sub-pixels are obtained by the second relational expression of the above embodiment, and the sub-pixels are driven by the gray-scale values to perform display. For example, the sub-pixels may be driven by obtaining the gray-scale values of the corresponding relational expressions using the third relational expression and the fourth relational expression. 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, so that 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, which is determined by the preset driving mode, thereby avoiding the loss of the color image data in the process of monochrome display, well restoring the color image data, and having the characteristics of good display effect and high monochrome display definition.

In accordance with another embodiment of the present invention, there is provided a monochrome display device, which drives sub-pixels arranged in 2N rows by 2N columns for displaying according to received three primary color 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 arranged in a row direction in a staggered manner;

as shown in fig. 10, the monochrome display device includes:

The monochrome display device provided by the embodiment of the invention can effectively restore gray image data, avoids color image data loss in a monochrome display process, can perfectly 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 figure are only an 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 used as a design criterion, and details are not repeated here. In an optional embodiment, the monochrome display device of this embodiment 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 regarded as being located in the same row in the preset driving manner, so as to restore the gray image data in N rows × N columns of this embodiment.

In an alternative embodiment, the sub-pixel gray-scale value module obtains the gray-scale value of each sub-pixel in different preset driving modes. For example, the gray scale values corresponding to different relational expressions are determined according to different first relational expressions, second relational expressions, third relational expressions and fourth relational expressions in the above embodiments of the present invention, and the sub-pixels are further driven to display according to the obtained gray scale values.

The preset driving manner of this embodiment corresponds to the above method, and is not described herein again.

In an optional 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, a monochrome display circuit can be directly manufactured for a display device in manufacturing, such as a semi-finished display module, so as to ensure that the processed display device has a monochrome display function. In an alternative embodiment, the completed 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 monochrome display circuit, the sub-pixel driving module of the display device drives each sub-pixel to display through the monochrome display circuit, each sub-pixel is driven to emit light, and the light rays realize monochrome display of emergent light through the monochrome filter. In one specific example, the monochrome filter of the present embodiment is green or white, thereby enabling high-luminance applications of monochrome display devices.

In another specific example, the display device of the present embodiment further includes a color display circuit and a monochrome display circuit, wherein each sub-pixel is driven by the color display circuit to perform display, and the color display circuit or the monochrome display circuit is switched by the switching circuit.

In this example, for a display device under production, such as a semi-finished display module, the semi-finished display module can be produced to include a monochrome display circuit, a color display circuit, and a switching circuit, and the display performance of the display device is determined according to the process requirements of the back end.

That is to say, the circuit of the monochrome display device and the circuit of the color display device of the present application can be designed as the same circuit, and the display requirements in the subsequent processes can be met only by the switching circuit, if the monochrome display device is manufactured according to the rear-end processing requirements, the driving circuit can be switched to the monochrome display circuit by the switching circuit, and further, the monochrome display device of the embodiment of the present invention can be manufactured by setting the filter as the monochrome filter. Alternatively, if the backend processing requests the fabrication of a color display device, the color display device according to the embodiment of the present invention can be fabricated by switching the driving circuit to the color display circuit by the switching circuit and further by providing the color filter as the color filter.

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 monochrome or color display) by the circuit design of the color display circuit and the monochrome display circuit.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.

Claims

1. The single-color display method is applied to a single-color display device, the single-color display device drives sub-pixels arranged in 2N rows and 2N columns according to received three primary color image data of N rows and N columns to display, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are arranged in a staggered mode in a row direction;

the method comprises the following steps:

2. The method according to claim 1, wherein the monochrome display device comprises N rows of scanning lines and 2N columns of data lines, wherein two adjacent rows of sub-pixels connected to the same scanning 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 level value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data further comprises:

sub(h,w)＝gray(h,w/2)；

4. The method of claim 2, wherein determining the gray level value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data further comprises:

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;

5. The method of claim 4, further comprising:

6. The method of claim 2, wherein determining the gray level value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data further comprises:

when w% 2 ═ 0,

when w% 2 ═ 1, sub (h, w) ═ gray (h, w/2);

7. The method of claim 2, wherein determining the gray level value of each sub-pixel corresponding to a preset driving mode according to the preset driving mode and the gray image data further comprises:

when w% 2 is 0, sub (h, w) gray (h, w/2);

when w% 2 ═ 1,

8. A monochrome display device is characterized in that the monochrome display device drives sub-pixels arranged in 2N rows and 2N columns to display according to received three primary color image data of N rows and N columns, wherein the sub-pixels positioned in even columns and the sub-pixels positioned in odd columns are arranged in a staggered mode in a row direction;

the monochrome display device includes:

9. The device of claim 8, wherein the monochrome display device comprises N rows of scan lines and 2N columns of data lines, and 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.

10. The apparatus of claim 9, wherein the sub-pixel grayscale value module is further configured to:

sub(h,w)＝gray(h,w/2)；

11. The apparatus of claim 9, wherein the sub-pixel grayscale value module is further configured to:

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;

12. The apparatus of claim 11, wherein the sub-pixel grayscale value module is further configured to: and compensating the gray-scale value of the sub-pixel positioned on the Nth row or the 2N-1 th column by using a preset compensation threshold value.

13. The apparatus of claim 9, wherein the sub-pixel grayscale value module is further configured to:

when w% 2 ═ 0,

when w% 2 ═ 1, sub (h, w) ═ gray (h, w/2);

14. The apparatus of claim 9, wherein the sub-pixel grayscale value module is further configured to:

when w% 2 is 0, sub (h, w) gray (h, w/2);

when w% 2 ═ 1,

15. The device according to 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 device of any of claims 15, wherein the monochrome display device 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.