Display substrate, driving method thereof and display device

Patent metadata

Field	Value
Publication number	US-9997103-B2
Application number	US-201514913557-A
Country	US
Kind code	B2
Filing date	Jul 22, 2015
Priority date	Feb 13, 2015
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

A display substrate, a driving method thereof and a display device are disclosed. The display substrate includes repeatedly arranged pixel groups. Each pixel group includes a first sub-pixel group, a second sub-pixel group, a third sub-pixel group and a fourth sub-pixel group. Each of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group includes four pixel columns. The display substrate, the driving method thereof and the display device reduce the number of sub-pixels in the whole display device and hence reduce the difficulty in the manufacturing process of the display device and the cost on the premise of ensuring that the display device obtains a high resolution.

First claim

The invention claimed is:

1. A display substrate, comprising repeatedly arranged pixel groups, wherein each pixel group includes a first sub-pixel group, a second sub-pixel group, a third sub-pixel group and a fourth sub-pixel group; each of the first sub-pixel group, the second sub-pixel group, the third sub-pixel group and the fourth sub-pixel group includes four pixel columns;
the first pixel column in the first sub-pixel group is provided with a first sub-pixel; two second sub-pixels in the second pixel column of the first sub-pixel group are arranged in sequence; the third pixel column in the first sub-pixel group is provided with a third sub-pixel; the fourth pixel column in the first sub-pixel group is provided with one second sub-pixel, in which both the first sub-pixel in the first pixel column and the second sub-pixel in the fourth pixel column correspond the two second sub-pixels in the second pixel column;
two first sub-pixels in the first pixel column of the second sub-pixel group are arranged in sequence; two second sub-pixels in the second pixel column of the second sub-pixel group are arranged in sequence; the third pixel column in the second sub-pixel group is provided with one third sub-pixel; the fourth pixel column in the second sub-pixel group is provided with one second sub-pixel, in which both the third sub-pixel in the third pixel column and the second sub-pixel in the fourth pixel column correspond to the two second sub-pixels in the second pixel column;
the first pixel column in the third sub-pixel group is provided with third sub-pixels; the second pixel column in the third sub-pixel group is provided with one second sub-pixel; the third pixel column in the third sub-pixel group is provided with one first sub-pixel; two second sub-pixels in the fourth pixel column of the third sub-pixel group are arranged in sequence, in which both the second sub-pixel in the second pixel column and the first sub-pixel in the third pixel column correspond to the two second sub-pixels in the fourth pixel column;
the first pixel column in the fourth sub-pixel group is provided with a third sub-pixel; the second pixel column in the fourth sub-pixel group is provided with one second sub-pixel; two first sub-pixels in the third pixel column of the fourth sub-pixel group are arranged in sequence; and two second sub-pixels in the fourth pixel column of the fourth sub-pixel group are arranged in sequence, in which both the third sub-pixel in the first pixel column and the second sub-pixel in the second pixel column correspond to the two first sub-pixels in the third pixel column.

2. The display substrate according to claim 1 , wherein, for each pixel group, the first sub-pixel group and the second sub-pixel group are arranged side by side; the third sub-pixel group and the fourth sub-pixel group are arranged side by side; the pixel columns in the first sub-pixel group are provided in same columns with the pixel columns in the third sub-pixel group; and the pixel columns in the second sub-pixel group are provided in same columns with the pixel columns in the fourth sub-pixel group.

3. The display substrate according to claim 1 , wherein the third pixel column in the first sub-pixel group is provided with one third sub-pixel, and the third sub-pixel in the third pixel column of the first sub-pixel group corresponds to the two second sub-pixels in the second pixel column; or
the third pixel column in the first sub-pixel group is provided with two third sub-pixels.

4. The display substrate according to claim 3 , wherein when the third pixel column in the first sub-pixel group is provided with one third sub-pixel, the first sub-pixel in the first pixel column, the third sub-pixel in the third pixel column and the second sub-pixel in the fourth pixel column of the first sub-pixel group are arranged in a same pixel row as the third sub-pixel in the third pixel column and the second sub-pixel in the fourth pixel column of the second sub-pixel group; and
when the third pixel column of the first sub-pixel group is provided with two third sub-pixels, the first sub-pixel in the first pixel column and the second sub-pixel in the fourth pixel column of the first sub-pixel group are arranged in a same pixel row as the third sub-pixel in the third pixel column and the second sub-pixel in the fourth pixel column of the second sub-pixel group.

5. The display substrate according to claim 1 , wherein the first pixel column in the third sub-pixel group is provided with one third sub-pixel, and the first sub-pixel in the third pixel column of the third sub-pixel group corresponds to the two second sub-pixels in the second pixel column; or
the first pixel column in the third sub-pixel group is provided with two third sub-pixels.

6. The display substrate according to claim 5 , wherein when the first pixel column in the third sub-pixel group is provided with one third sub-pixel, the third sub-pixel in the first pixel column, the second sub-pixel in the second pixel column and the first sub-pixel in the third pixel column of the third sub-pixel group are arranged in a same pixel row as the third sub-pixel in the first pixel column and the second sub-pixel in the second pixel column of the fourth sub-pixel group; or
when the first pixel column in the third sub-pixel group is provided with two third sub-pixels, the second sub-pixel in the second pixel column and the first sub-pixel in the third pixel column of the third sub-pixel group arranged in a same pixel row as the third sub-pixel in the first pixel column and the second sub-pixel in the second pixel column of the fourth sub-pixel group.

7. A display device, comprising: the display substrate according to claim 1 .

8. A method for driving a display substrate for driving the display substrate according to claim 1 , comprising:
generating an output value of the first sub-pixel in the first pixel column, output values of two second sub-pixels in the second pixel column, output values of the third sub-pixel in the third pixel column, and an output value of a second sub-pixel in the fourth pixel column of the first sub-pixel group, and outputting the output value of the first sub-pixel in the first pixel column, the output values of the two second sub-pixels in the second pixel column, the output values of the third sub-pixel in the third pixel column, and the output value of the second sub-pixel in the fourth pixel column of the first sub-pixel group;
generating output values of two first sub-pixels in the first pixel column, output values of two second sub-pixels in the second pixel column, an output value of the third sub-pixel in the third pixel column, and an output value of the second sub-pixel in the fourth pixel column of the second sub-pixel group, and outputting the output value of the two first sub-pixels in the first pixel column, the output values of the two second sub-pixels in the second pixel column, the output value of the third sub-pixel in the third pixel column and the output value of the second sub-pixel in the fourth pixel column of the second sub-pixel group;
generating output values of third sub-pixels in the first pixel column, an output value of the second sub-pixel in the second pixel column, an output value of the first sub-pixel in the third pixel column, and output values of two second sub-pixels in the fourth pixel column of the third sub-pixel group, and outputting the output values of the third sub-pixels in the first pixel column, the output value of the second sub-pixel in the second pixel column, the output value of the first sub-pixel in the third pixel column, and the output values of the two second sub-pixels in the fourth pixel column of the third sub-pixel group; and
generating an output value of t

Assignees

• Boe Technology Group Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Jin Xiaodan
• Zhang Lintao

Classifications

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G09G3/3611

  Control of matrices with row and column drivers · CPC title

• G09G3/3208 Primary

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G3/2003 Primary

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• G09G3/3607

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title