Display substrate

Patent metadata

Field	Value
Publication number	US-2025275388-A1
Application number	US-202318705002-A
Country	US
Kind code	A1
Filing date	Mar 23, 2023
Priority date	Mar 30, 2022
Publication date	Aug 28, 2025
Grant date	—

Abstract

A display substrate is provided, the display substrate has a display region and includes a base substrate, sub-pixels, data lines, and first signal lines; each of at least part of the sub-pixels includes a pixel driving circuit and a light-emitting device; the data lines are in a first metal layer, the first signal lines are in a second metal layer; in a first display region, a plurality of first signal lines extend in a first direction, the first display region includes first compensation patterns, the first electrode is on a side of the first signal lines and the first compensation patterns away from the base substrate, an orthographic projection of at least one first compensation pattern on the base substrate at least partially overlaps with an orthographic projection of the first electrode of a light-emitting device of at least one sub-pixel on the base substrate.

First claim

Listing of claims:

1 . A display substrate, having a display region, wherein the display region comprises:
a base substrate, a plurality of sub-pixels on the base substrate, wherein each of at least part of the plurality of sub-pixels comprises a pixel driving circuit and a light-emitting device, the light-emitting device comprises a first electrode electrically connected to the pixel driving circuit, a plurality of data lines on the base substrate and in a first metal layer, and a plurality of first signal lines on the base substrate and in a second metal layer, wherein the second metal layer is on a side of the first metal layer away from the base substrate, at least one of the plurality of first signal lines is electrically connected to at least one of the plurality of data lines through a first via; wherein the display region comprises a first display region, in the first display region, the plurality of first signal lines extend in a first direction, the first display region comprises a plurality of first compensation patterns, in the first display region, first electrodes of light-emitting devices of the plurality of sub-pixels are on a side of the plurality of first signal lines and the plurality of first compensation patterns away from the base substrate, an orthographic projection of at least one of the plurality of first compensation patterns on the base substrate at least partially overlaps with an orthographic projection of the first electrode of the light-emitting device of at least one of the plurality of sub-pixels on the base substrate.

2 . The display substrate according to claim 1 , wherein the plurality of first compensation patterns are in the second metal layer.

3 . The display substrate according to claim 1 , wherein the display region further comprises a second display region, in the second display region, the plurality of first signal lines extend in a second direction, the second display region comprises a second compensation pattern,
in the second display region, first electrodes of light-emitting devices of the plurality of sub-pixels are on a side of the plurality of first signal lines and the plurality of second compensation patterns away from the base substrate, an orthographic projection of at least one of the plurality of second compensation patterns on the base substrate at least partially overlaps with an orthographic projection of the first electrode of the light-emitting device of at least one of the plurality of sub-pixels on the base substrate; the first direction is different from the second direction.

4 . (canceled)

5 . The display substrate according to claim 3 , wherein the plurality of first signal lines are electrically connected to the plurality of data lines through a plurality of first vias, respectively, the plurality of first vias are in the second display region and arranged in a straight line, the straight line intersects the first direction and the second direction.

6 . (canceled)

7 . The display substrate according to claim 3 , wherein in the second display region, the plurality of first signal lines extend in the second direction to an edge of the display region and are disconnected on a side of the plurality of first vias close to the edge.

8 . The display substrate according to claim 7 , wherein portions of the plurality of first signal lines disconnected on the side of the plurality of first vias close to the edge are electrically connected with the plurality of data lines, respectively.

9 . The display substrate according to claim 1 , wherein the pixel driving circuit and the first electrode are electrically connected through a second via, in a direction perpendicular to the base substrate, the second via does not overlap with the first via.

10 . The display substrate according to claim 3 , wherein the plurality of first compensation patterns and the plurality of second compensation patterns are respectively in a shape of Chinese character “ ”, a shape of Chinese character “ ”, a shape of Chinese character “ ”, a shape of Chinese character “ ”, a shape of a ring or a shape of a block.

11 . (canceled)

12 . The display substrate according to claim 3 , wherein in the first display region, the plurality of first compensation patterns comprise first compensation patterns electrically connected with the plurality of first signal lines, respectively, and respectively in a shape of Chinese character “ ” extending in the second direction.

13 . The display substrate according to claim 12 , wherein the plurality of sub-pixels comprise red sub-pixels, green sub-pixels, and blue sub-pixels,
light-emitting devices of the red sub-pixels and the blue sub-pixels are in a same row, and light-emitting devices of the green sub-pixels are in a same row, and rows where the light-emitting devices of the red sub-pixels and the blue sub-pixels are located and rows where the light-emitting devices of the green sub-pixels are located are alternately arranged; the light-emitting devices of the red sub-pixels and the blue sub-pixels are in a same column, the light-emitting devices of the green sub-pixels are in a same column, and columns where the light-emitting devices of the red sub-pixels and the blue sub-pixels are located and columns where the light-emitting devices of the green sub-pixels are located are alternately arranged.

14 . The display substrate of claim 13 , wherein in the first display region and in the direction perpendicular to the base substrate, the first signal line at least partially overlaps with the light-emitting device of the green sub-pixel, and the first signal line does not overlap with the light-emitting devices of the red sub-pixel and the blue sub-pixel.

15 . The display substrate according to claim 14 , wherein in the first display region and in the direction perpendicular to the base substrate, a first electrode of a light-emitting device of the green sub-pixel at least partially overlaps the first compensation pattern in the shape of Chinese character “ ”.

16 . The display substrate according to claim 14 , wherein the plurality of first compensation patterns further comprise a first compensation pattern in a shape of Chinese character “ ” on at least one side of the plurality of first signal lines, the first compensation pattern in the shape of Chinese character “ ” comprises two portions respectively extending along the first direction and the second direction.

17 . The display substrate according to claim 16 , wherein the first compensation pattern in the shape of Chinese character “ ” is spaced apart from the plurality of first signal lines.

18 . The display substrate according to claim 16 , wherein in the direction perpendicular to the base substrate, the first electrodes of the light-emitting devices of the red sub-pixel and the blue sub-pixel respectively overlap with one first compensation pattern in the shape of Chinese character “ ”.

19 . The display substrate according to claim 13 , wherein in the second display region, the plurality of second compensation patterns comprise a second compensation pattern in a shape of Chinese character “ ” on at least one side of the plurality of first signal lines, the second compensation pattern in the shape of Chinese character “ ” comprises two portions respectively extending along the first direction and the second direction;
in the direction perpendicular to the base substrate, first electrodes of light-emitting devices of the green sub-pixel, the red sub-pixel and the blue sub-pixel respectively

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Ding Yanhong
• Wang Zhu
• Liu Bin
• Yang Gansong
• Yan Zhenglong
• Ma Danyang

Classifications

• H10K59/353

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

• H10K59/123

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/121

  characterised by the geometry or disposition of pixel elements · CPC title