Pixel arrangement structure and display panel

Patent metadata

Field	Value
Publication number	US-12490617-B2
Application number	US-202318192928-A
Country	US
Kind code	B2
Filing date	Mar 30, 2023
Priority date	Dec 10, 2020
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A pixel arrangement structure and a display panel. The pixel arrangement structure includes a plurality of repeat units, each of the repeat units is a quadrilateral and includes four pixel groups, each of the pixel groups is located within an area enclosed by two diagonals of the repeat unit, the pixel group includes: a first light-emitting pixel group including at least one first sub-pixel and at least one second sub-pixel arranged along one of the diagonals; a second light-emitting pixel group including at least one first sub-pixel and at least one third sub-pixel arranged along the other of the diagonals; and a backup pixel group located adjacent to an edge of the repeat unit and between the first light-emitting pixel group and the second light-emitting pixel group.

First claim

What is claimed is:

1 . A pixel arrangement structure comprising:
a plurality of repeat units arranged in an array, each of the repeat units being a quadrilateral and comprising four pixel groups, each of the pixel groups being located within an area defined by two diagonals of the repeat unit, wherein the pixel group comprises: a first light-emitting pixel group, comprising at least one first sub-pixel and at least one second sub-pixel arranged along one of the diagonals; a second light-emitting pixel group, comprising at least one first sub-pixel and at least one third sub-pixel arranged along the other of the diagonals, the at least one first sub-pixel in the first light-emitting pixel group and the at least one first sub-pixel in the second light-emitting pixel group being symmetrically distributed about a symmetry line, and the at least one second sub-pixel in the first light-emitting pixel group and the at least one third sub-pixel in the second light-emitting pixel group being symmetrically distributed about the symmetry line; and a backup pixel group, located adjacent to an edge of the repeat unit and between the first light-emitting pixel group and the second light-emitting pixel group, the backup pixel group at least comprising a second backup sub-pixel and a third backup sub-pixel, the second backup sub-pixel having a same emitting color as the second sub-pixel and the third backup sub-pixel having a same emitting color as the third sub-pixel; wherein a ratio between a number of the at least one first sub-pixel and a number of the at least one second sub-pixel in the first light-emitting pixel group is 1:1, and a ratio between a number of the at least one first sub-pixel and a number of the at least one third sub-pixel in the second light-emitting pixel group is 1:1.

2 . The pixel arrangement structure of claim 1 , wherein in the first light-emitting pixel group, the at least one first sub-pixel comprises two first sub-pixels and the at least one second sub-pixel comprises two second sub-pixels, the two first sub-pixels are distributed at intervals along one of the diagonals, and the two second sub-pixels are distributed along the one of the diagonals and located between the two first sub-pixels; and
in the second light-emitting pixel group, the at least one first sub-pixel comprises two first sub-pixels and the at least one third sub-pixel comprises two third sub-pixels, the two first sub-pixels are distributed at intervals along the other of the diagonals, and the two third sub-pixels are distributed along the other of the diagonals and located between the two first sub-pixels.

3 . The pixel arrangement structure of claim 2 , wherein one of the first sub-pixels in the first light-emitting pixel group is adjacent to one of the first sub-pixels in the second light-emitting pixel group.

4 . The pixel arrangement structure of claim 3 , wherein the second backup sub-pixel in the backup pixel group is arranged adjacent to the second sub-pixel, so that the second backup sub-pixel and the second sub-pixel are formed by evaporation molding with a shared opening;
the third backup sub-pixel is arranged adjacent to the third sub-pixel, so that the third backup sub-pixel and the third sub-pixel are formed by evaporation molding with a shared opening; and the second backup sub-pixel and the third backup sub-pixel are symmetrically distributed with respect to the symmetry line.

5 . The pixel arrangement structure of claim 4 , wherein the repeat unit is a square, and the pixel group is an isosceles triangle and symmetrical about the symmetry line.

6 . The pixel arrangement structure of claim 5 , wherein within the pixel group, the two second sub-pixels and the second backup sub-pixel that are adjacent to each other are distributed as a regular octagon.

7 . The pixel arrangement structure of claim 6 , wherein the second backup sub-pixel and the second sub-pixels are of a same shape and size, and one edge of the regular octagon overlaps one of the diagonals.

8 . The pixel arrangement structure of claim 5 , wherein the two third sub-pixels and the third backup sub-pixel that are adjacent to each other are distributed as a regular octagon.

9 . The pixel arrangement structure of claim 8 , wherein the third backup sub-pixel and the third sub-pixels are of a same shape and size, and one edge of the regular octagon overlaps one of the diagonals.

10 . The pixel arrangement structure of claim 2 , wherein the four pixel groups are distributed around an intersection of the two diagonals, and for two adjacent pixel groups in one of the repeat units, the first light-emitting pixel group of one of the two adjacent pixel groups and the second light-emitting pixel group of the other of the two adjacent pixel groups are adjacent to each other and located at two sides of one of the diagonals.

11 . The pixel arrangement structure of claim 10 , wherein for the first light-emitting pixel group and the second light-emitting pixel group located at two sides of a same one of the diagonals,
four of the first sub-pixels, two of the second sub-pixels and two of the third sub-pixels form one low pixel display unit, and the first light-emitting pixel group and the second light-emitting pixel group form the low pixel display unit.

12 . The pixel arrangement structure of claim 10 , wherein for the first light-emitting pixel group and the second light-emitting pixel group located at two sides of a same one of the diagonals,
one of the first sub-pixels, one of the second sub-pixels and one of the third sub-pixels form one high pixel display unit, two adjacent high pixel display units share the second sub-pixel and the third sub-pixel, and the first light-emitting pixel group and the second light-emitting pixel group form four high pixel display units.

13 . The pixel arrangement structure of claim 12 , wherein the backup pixel group further comprises a first backup sub-pixel having a same emitting color as the first sub-pixel and being located between the second backup sub-pixel and the third backup sub-pixel.

14 . The pixel arrangement structure of claim 13 , wherein the repeat units are arranged in an array along a first direction and a second direction, and for two of the repeat units adjacent to each other along the first direction and/or the second direction, at least two of the first backup sub-pixels in the backup pixel group are arranged adjacent to each other, so that two adjacent ones of the first backup sub-pixels are formed by evaporation molding with a shared evaporation opening.

15 . The pixel arrangement structure of claim 12 , wherein the repeat unit is a square, and eight of the first sub-pixels arranged near the intersection of the two diagonals in the repeat unit are distributed as a square.

16 . The pixel arrangement structure of claim 15 , wherein the repeat units are arranged in an array along a first direction and a second direction, and eight adjacent first sub-pixels formed by four repeat units are distributed as a square.

17 . A display panel comprising the pixel arrangement structure of claim 1 .

Assignees

• Hefei Visionox Tech Co Ltd

Inventors

• Lan Lan
• Qiu Shaoya
• Qu Yi
• Kang Menghua
• Dong Qingqing
• Feng Dandan

Classifications

• H10K59/351

  comprising more than three subpixels, e.g. red-green-blue-white [RGBW] · CPC title

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K50/86

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K71/166

  using selective deposition, e.g. using a mask · CPC title