Display substrate and driving method thereof as well as display apparatus

• US 9,881,539 B2
• Filed: 07/17/2015
• Issued: 01/30/2018
• Est. Priority Date: 02/13/2015
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Jin, Xiaodan, Zhang, Lintao
• Primary Examiner(s): Sheng, Tom
• Application Number:
  US14/905,371
• Publication Number:
  US 20160372019A1
• Time in Patent Office: 928 Days
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0465 Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
• CPC Class Codes: G09G 3/20 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
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607

Abstract

A display substrate and a driving method thereof as well as a display apparatus. The display substrate comprises pixel groups which are arranged repeatedly, each pixel group comprising a first sub-pixel group and a second sub-pixel group, each comprising four pixel columns. The present invention reduces the number of sub-pixels in the whole display apparatus. Therefore, on a premise of ensuring that the display apparatus achieves a relatively high resolution, the fabrication difficulty of the display apparatus is reduced, and the cost is lowered.

Claims

1. A display substrate, comprising pixel groups which are arranged repeatedly, each pixel group comprising a first sub-pixel group and a second sub-pixel group, and said first sub-pixel group and said second sub-pixel ground both comprising four sub-pixel columns;

wherein

two first sub-pixels which are sequentially arranged are disposed in a first sub-pixel column of said first sub-pixel group, one second sub-pixel is disposed in a second sub-pixel column of said first sub-pixel group, one third sub-pixel is disposed in a third sub-pixel column-in said first sub-pixel group, and two second sub-pixels which are sequentially arranged are disposed in a fourth sub-pixel column of said first sub-pixel group, wherein said second sub-pixel in said second sub-pixel column corresponds to said two first sub-pixels in said first pixel column, and said third sub-pixel in said third sub-pixel column corresponds to said two second sub-pixels in said fourth pixel column; and

one third sub-pixel is disposed in a first sub-pixel column of said second sub-pixel group, two second sub-pixels which are sequentially arranged are disposed in a second sub-pixel column of said second sub-pixel group, two first sub-pixels which are sequentially arranged are disposed in a third sub-pixel column of said second sub-pixel group, and one second sub-pixel is disposed in a fourth sub-pixel column of said second sub-pixel group, wherein said third sub-pixel in said first sub-pixel column corresponds to said two second sub-pixels in said second pixel column, and said second sub-pixel in said fourth sub-pixel column corresponds to said two first sub-pixels in said third pixel column

wherein in said first sub-pixel group, a light emitting center of said second sub-pixel in said second sub-pixel column and a midpoint of a connecting line between light emitting centers of said two first sub-pixels in said first sub-pixel column are located on the same straight line in a row direction, and a light emitting center of said third sub-pixel in said third sub-pixel column and a midpoint of a connecting line between light emitting centers of said two second sub-pixels in said fourth sub-pixel column are located on the same straight line in a row direction; and

wherein in said second sub-pixel group, a light emitting center of said third sub-pixel in said first sub-pixel column and a midpoint of a connecting line between light emitting centers of said two second sub-pixels in said second sub-pixel column are located on the same straight line in a row direction, and a light emitting center of said second sub-pixel in said fourth sub-pixel column and a midpoint of a connecting line between light emitting centers of said two first sub-pixels in said third sub-pixel column are located on the same straight line in a row direction.

2. The display substrate according to claim 1, wherein said first sub-pixel group and said second sub-pixel group are disposed in an overlying relation, and wherein individual sub-pixel columns in said first sub-pixel group are disposed corresponding to individual sub-pixel columns in said second sub-pixel group.

3. A display apparatus, comprising the display substrate according to claim 2.

4. The display substrate according to claim 1, wherein in said first sub-pixel group, said second sub-pixel in said second pixel column, and said third sub-pixel in said third sub-pixel column are located in the same pixel row.

5. A display apparatus, comprising the display substrate according to claim 4.

6. The display substrate according to claim 1, wherein in said second sub-pixel group, said third sub-pixel in said first sub-pixel column and said second sub-pixel in said fourth sub-pixel column are located in the same pixel row.

7. A display apparatus, comprising the display substrate according to claim 6.

8. A display apparatus, comprising the display substrate according to claim 1.

9. A method for driving the display substrate according to claim 1, comprising:

according to input values for corresponding sub-pixels in said first sub-pixel group, respectively generating output values for said two first sub-pixels in said first pixel column, an output value for said one second sub-pixel in said second pixel column, an output value for said one third sub-pixel in said third sub-pixel column and output values for said two second sub-pixels in said fourth pixel column;

respectively outputting said output values for said two first sub-pixels in said first pixel column, said output value for said one second sub-pixel in said second pixel column, said output value for said one third sub-pixel in said third sub-pixel column and said output values for said two second sub-pixels in said fourth pixel column, which are generated as above;

according to input values for corresponding sub-pixels in said second sub-pixel group, respectively generating an output value for said one third sub-pixel in said first pixel column, output values for said two second sub-pixels in said second pixel column, output values for said two first sub-pixels in said third pixel column, and an output value for said one second sub-pixel in said fourth pixel column; and

respectively outputting said output value for said one third sub-pixel in said first pixel column, said output values for said two second sub-pixels in said second pixel column, said output values for said two first sub-pixels in said third pixel column, and said output value for said one second sub-pixel in said fourth pixel column, which are generated as above.

10. The method according to claim 9, wherein the step of, according to input values for corresponding sub-pixels in said first sub-pixel group, respectively generating output values for said two first sub-pixels in said first pixel column, an output value for said one second sub-pixel in said second pixel column, an output value for said one third sub-pixel in said third sub-pixel column and output values for said two second sub-pixels in said fourth pixel column, comprises:

according to two first sub-pixel input values corresponding to each first sub-pixel in said first sub-pixel column of said first sub-pixel group, generating an output value for each first sub-pixel in said first pixel column;

according to two second sub-pixel input values corresponding to said second sub-pixel in said second sub-pixel column of said first sub-pixel group, generating an output value for said second sub-pixel in said second pixel column;

according to four third sub-pixel input values corresponding to said third sub-pixel in said third sub-pixel column of said first sub-pixel group, generating an output value for said third sub-pixel in said third pixel column; and

according to a second sub-pixel input value corresponding to each second sub-pixel in said fourth sub-pixel column of said first sub-pixel group, generating an output value for each second sub-pixel in said fourth pixel column.

11. The method according to claim 10, wherein

the step of, according to two first sub-pixel input values corresponding to each first sub-pixel in said first sub-pixel column of said first sub-pixel group, generating an output value for each first sub-pixel in said first pixel column, comprises:

by dividing a sum of two first sub-pixel input values corresponding to each first sub-pixel in said first sub-pixel column of said first sub-pixel group by two, generating an output value for each first sub-pixel in said first pixel column;

the step of, according to two second sub-pixel input values corresponding to said second sub-pixel in said second sub-pixel column of said first sub-pixel group, generating an output value for said second sub-pixel in said second pixel column, comprises;

by dividing a sum of two second sub-pixel input values corresponding to said second sub-pixel in said second sub-pixel column of said first sub-pixel group by two, generating an output value for said second sub-pixel in said second pixel column;

the step of, according to four third sub-pixel input values corresponding to said third sub-pixel in said third sub-pixel column of said first sub-pixel group, generating an output value for said third sub-pixel in said third pixel column, comprises;

by dividing a sum of the four third sub-pixel input values corresponding to said third sub-pixel in said third sub-pixel column of said first sub-pixel group by four, generating an output value for said third sub-pixel in said third pixel column; and

the step of, according to a second sub-pixel input value corresponding to each second sub-pixel in said fourth sub-pixel column of said first sub-pixel group, generating an output value for each second sub-pixel in said fourth pixel column, comprises;

setting a second sub-pixel input value corresponding to each second sub-pixel in said fourth sub-pixel column of said first sub-pixel group to an output value for each second sub-pixel in said fourth pixel column.

12. The method according to claim 9, wherein the step of, according to input values for corresponding sub-pixels in said second sub-pixel group, respectively generating an output value for said one third sub-pixel in said first pixel column, output values for said two second sub-pixels in said second pixel column, output values for said two first sub-pixels in said third pixel column, and an output value for said one second sub-pixel in said fourth pixel column, comprises:

according to four third sub-pixel input values corresponding to said third sub-pixel in said first sub-pixel column of said second sub-pixel group, generating an output value for said third sub-pixel in said first pixel column;

according to a second sub-pixel input value corresponding to each second sub-pixel in said second sub-pixel column of said second sub-pixel group, generating an output value for each second sub-pixel in said second pixel column;

according to two first sub-pixel input values corresponding to each first sub-pixel in said third sub-pixel column of said second sub-pixel group, generating an output value for each first sub-pixel in said third pixel column; and

according to two second sub-pixel input values corresponding to said second sub-pixel in said fourth sub-pixel column of said second sub-pixel group, generating an output value for said second sub-pixel in said fourth pixel column.

13. The method according to claim 12, wherein

the step of, according to four third sub-pixel input values corresponding to said third sub-pixel in said first sub-pixel column of said second sub-pixel group, generating an output value for said third sub-pixel in said first pixel column, comprises:

by dividing a sum of four third sub-pixel input values corresponding to said third sub-pixel in said first sub-pixel column of said second sub-pixel group by four, generating an output value for said third sub-pixel in said first pixel column;

the step of, according to a second sub-pixel input value corresponding to each second sub-pixel in said second sub-pixel column of said second sub-pixel group, generating an output value for each second sub-pixel in said second pixel column, comprises;

setting a second sub-pixel input value corresponding to each second sub-pixel in said second sub-pixel column of said second sub-pixel group to an output value for each second sub-pixel in said second pixel column;

the step of, according to two first sub-pixel input values corresponding to each first sub-pixel in said third sub-pixel column of said second sub-pixel group, generating an output value for each first sub-pixel in said third pixel column, comprises;

by dividing a sum of two first sub-pixel input values corresponding to each first sub-pixel in said third of said second sub-pixel group by two, generating an output value for each first sub-pixel in said third pixel column; and

the step of, according to two second sub-pixel input values corresponding to said second sub-pixel in said fourth sub-pixel column of said second sub-pixel group, generating an output value for said second sub-pixel in said fourth pixel column, comprises;

by dividing a sum of two second sub-pixel input values corresponding to said second sub-pixel in said fourth sub-pixel column of said second sub-pixel group by two, generating an output value for said second sub-pixel in said fourth pixel column.