Pixel arrangement, manufacturing method thereof, display panel, display device and mask

Patent metadata

Field	Value
Publication number	US-10909901-B2
Application number	US-201816462776-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Jan 2, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A pixel arrangement includes a plurality of first groups of sub-pixels arranged in a first direction, each first group including first sub-pixels and third sub-pixels arranged alternately. A plurality of second groups of sub-pixels are arranged in the first direction, each second group including third sub-pixels and second sub-pixels alternately arranged. The first groups and the second groups are alternately arranged in a second direction intersecting the first direction. The first groups and the second groups are arranged to form a plurality of third groups of sub-pixels arranged in the second direction and a plurality of fourth groups of sub-pixels arranged in the second direction. The third groups and the fourth groups are alternately arranged in the first direction, each third group including first sub-pixels and third sub-pixels alternately arranged, each fourth group including third sub-pixels and second sub-pixels alternately arranged.

First claim

What is claimed is:

1. A pixel arrangement comprising:
a plurality of first groups of sub-pixels arranged in a first direction, each of the plurality of first groups comprising a plurality of first sub-pixels and a first plurality of third sub-pixels arranged alternately; and
a plurality of second groups of sub-pixels arranged in the first direction, each of the plurality of second groups comprising a second plurality of third sub-pixels and a plurality of second sub-pixels arranged alternately,
wherein the plurality of first groups and the plurality of second groups are alternately arranged in a second direction intersecting the first direction,
wherein the plurality of first groups and the plurality of second groups are arranged to form a plurality of third groups of sub-pixels arranged in the second direction and a plurality of fourth groups of sub-pixels arranged in the second direction,
wherein the plurality of third groups and the plurality of fourth groups are alternately arranged in the first direction,
wherein each of the plurality of third groups comprise a plurality of first sub-pixels and a third plurality of third sub-pixels alternately arranged,
wherein each of the plurality of fourth groups comprise a fourth plurality of third sub-pixels and a plurality of second sub-pixels arranged alternately, and
wherein each of the plurality of first sub-pixels in each of the plurality of first groups has a same first minimum distance from its two directly adjacent ones of the first plurality of third sub-pixels in that first group,
wherein each of the plurality of first sub-pixels in each of the plurality of third groups has a same second minimum distance from its two directly adjacent ones of the third plurality of third sub-pixels in that third group, and
wherein the first minimum distance is unequal to the second minimum distance.

2. The pixel arrangement of claim 1 , wherein each of the plurality of first sub-pixels has substantially a same third minimum distance from four directly adjacent ones of the plurality of second sub-pixels.

3. The pixel arrangement of claim 2 , wherein for first ones of the plurality of first sub-pixels, the second minimum distance is greater than the third minimum distance, and the third minimum distance is greater than the first minimum distance.

4. The pixel arrangement of claim 3 , wherein each of the plurality of second sub-pixels has a substantially same minimum distance from its four directly adjacent ones of the third sub-pixels, the substantially same minimum distance being substantially equal to the first minimum distance.

5. The pixel arrangement of claim 2 , wherein for second ones of the plurality of first sub-pixels, the second minimum distance is less than the third minimum distance, and the third minimum distance is less than the first minimum distance.

6. The pixel arrangement of claim 1 , wherein each of the first, second, third, or fourth plurality of third sub-pixels has a fourth minimum distance from one of its two directly adjacent ones of the first, second, third, or fourth plurality of third sub-pixels and a fifth minimum distance from another of its two directly adjacent ones of the first, second, third, or fourth plurality of third sub-pixels, the fifth minimum distance being greater than the fourth minimum distance.

7. The pixel arrangement of claim 6 ,
wherein the plurality of first sub-pixels in each of the plurality of first groups are positioned substantially equidistantly with respect to each other at a sixth minimum distance, and
wherein the plurality of first sub-pixels in each of the plurality of third groups are positioned substantially equidistantly with respect to each other at the sixth minimum distance, the sixth minimum distance being greater than any one of the fourth minimum distance and the fifth minimum distance.

8. The pixel arrangement of claim 7 ,
wherein the plurality of second sub-pixels in each of the plurality of second groups are positioned substantially equidistantly with respect to each other at a seventh minimum distance, and
wherein the plurality of second sub-pixels in each of the plurality of fourth groups are positioned substantially equidistantly with respect to each other at the seventh minimum distance, the seventh minimum distance being greater than the fifth minimum distance and less than the sixth minimum distance.

9. The pixel arrangement of claim 1 ,
wherein the plurality of first sub-pixels each have an equilateral quadrilateral shape,
wherein the plurality of second sub-pixels each have a rectangular shape, and
wherein the first, second, third, or fourth plurality of third sub-pixels each have an octagonal shape.

10. The pixel arrangement of claim 9 ,
wherein the first, second, third, or fourth plurality of third sub-pixels in each of the plurality of first groups each have a length direction substantially parallel to the first direction, and
wherein the first, second, third, or fourth plurality of third sub-pixels in each of the plurality of third groups each have a length direction substantially parallel to the second direction.

11. The pixel arrangement of claim 9 ,
wherein every two adjacent second sub-pixels in each of the plurality of second groups are oriented such that they are rotated by 90 degrees with respect to each other, and
wherein every two adjacent second sub-pixels in each of the plurality of fourth groups are oriented such that they are rotated by 90 degrees with respect to each other.

12. The pixel arrangement of claim 1 , wherein the plurality of first sub-pixels comprise red sub-pixels, wherein the plurality of second sub-pixels comprise blue sub-pixels, and wherein the third sub-pixels comprise green sub-pixels.

13. The pixel arrangement of claim 12 , wherein the plurality of first sub-pixels each have a first area, wherein the plurality of second sub-pixels each have a second area, and wherein the third sub-pixels each have a third area that is smaller than the first area and the second area.

14. The pixel arrangement of claim 13 , wherein the blue sub-pixels each have an area larger than an area of each of the red sub-pixels.

15. The pixel arrangement of claim 1 , wherein the plurality of first sub-pixels comprise blue sub-pixels, wherein the plurality of second sub-pixels comprise red sub-pixels, and wherein the third sub-pixels comprise green sub-pixels.

16. A display panel comprising:
a display substrate; and
the pixel arrangement of claim 1 , the pixel arrangement is on the display substrate,
wherein the pixel arrangement is arranged such that each of the first direction and the second direction intersects a length direction of the display substrate at approximately 45 degrees.

17. The display panel of claim 16 , wherein the plurality of first sub-pixels, the plurality of second sub-pixels, and ones of the first, second, third, or fourth plurality of the third sub-pixels comprise organic electroluminescent sub-pixels.

18. A display device comprising the display panel of claim 16 .

19. A set of masks for manufacturing the pixel arrangement of claim 1 , comprising:
a first mask defining a plurality of first openings, the plurality of first openings arranged to have a pattern corresponding to a pattern of the plurality of first sub-pixels;
a second mask defining a plurality of second openings, the plurality of second openings arranged to have a pattern corresponding to a pattern of the plurality of second sub-pixels; and
a third mask defining a plurality of third openings, the

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wu Haidong
• Li Yansong
• Zhou Weilong
• Bai Shanshan
• Liu Yue
• Xiao Zhihui
• Wang Yangpeng

Classifications

• G09G2300/0452

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

• G09G3/2003 Primary

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

• G09G3/3208 Primary

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

• H01L27/3218

  Electricity · mapped topic

• H01L27/3216

  Electricity · mapped topic