Display substrate and display device

Patent metadata

Field	Value
Publication number	US-12499826-B2
Application number	US-202318484596-A
Country	US
Kind code	B2
Filing date	Oct 11, 2023
Priority date	Mar 25, 2020
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A display substrate and a display device are disclosed. In the display substrate, a plurality of openings include a plurality of opening groups, the plurality of opening groups include a plurality of opening group rows, each of the opening groups includes a first opening and a second opening, the plurality of opening group rows includes a first opening group row and a second opening group row, the spacer is located between the first opening of the first opening group row and the second opening of the second opening group row, an orthographic projection of the first opening includes a first long edge, and an orthographic projection of the second opening includes a second long edge, the first long edge is parallel to the second long edge, an extension line of the first long edge is misaligned from an extension line of the second long edge.

First claim

What is claimed is:

1 . A display substrate, comprising:
a base substrate; a pixel defining layer, located on the base substrate and comprising a plurality of openings; and a spacer, located on a side of the pixel defining layer away from the base substrate, wherein the plurality of openings comprise a plurality of opening groups, the plurality of opening groups comprise a plurality of opening group rows, each of the opening group rows extends along a first direction, and the plurality of opening group rows are arranged along a second direction, two adjacent opening group rows are offset from each other in the first direction, each of the opening groups comprises a first opening and a second opening that are sequentially disposed along the first direction, the plurality of opening group rows comprise a first opening group row and a second opening group row that are adjacent in the second direction, the spacer is located between the first opening of the first opening group row and the second opening of the second opening group row, an orthographic projection of the first opening on the base substrate comprises a first long edge, and an orthographic projection of the second opening on the base substrate comprises a second long edge, the first long edge is parallel to the second long edge, an extension line of the first long edge is misaligned from an extension line of the second long edge.

2 . The display substrate according to claim 1 , wherein the display substrate is provided with a plurality of spaces, and a ratio of a quantity of the plurality of spacers to a quantity of the opening groups is approximately 1:2.

3 . The display substrate according to claim 1 , wherein the display substrate is provided with a plurality of spacers;
connection lines of the plurality of spacers form a plurality of rectangles.

4 . The display substrate according to claim 1 , wherein each of the opening groups further comprises a third opening and a fourth opening, the third opening and the fourth opening are arranged along the second direction to form an opening pair, and the first opening, the opening pair, and the second opening are sequentially disposed along the first direction.

5 . The display substrate according to claim 4 , further comprising:
an anode layer, located on a side of the pixel defining layer close to the base substrate and comprising a plurality of anodes, wherein the plurality of anodes and the plurality of openings are disposed in a one-to-one correspondence manner, and the plurality of anodes comprise a plurality of anode groups; each of the anode groups comprises a first anode, a second anode, a third anode, and a fourth anode, a plurality of organic material portions and the plurality of openings are disposed in a one-to-one correspondence manner.

6 . The display substrate according to claim 5 , wherein an orthographic projection of the spacer on the base substrate is separately spaced from an orthographic projection of the second anode on the base substrate, an orthographic projection of the third anode on the base substrate, and an orthographic projection of the fourth anode on the base substrate.

7 . The display substrate according to claim 5 , further comprising:
an organic material layer, located on a side of the pixel defining layer away from the anode layer and comprising the plurality of organic material portions, wherein the plurality of organic material portions comprise a plurality of organic material groups, and each of the organic material groups comprises a first organic material portion, a second organic material portion, a third organic material portion, and a fourth organic material portion; and the first organic material portion is at least partially located in the first opening and covers an exposed portion of the first anode, the second organic material portion is at least partially located in the second opening and covers an exposed portion of the second anode, the third organic material portion is at least partially located in the third opening and covers an exposed portion of the third anode, and the fourth organic material portion is at least partially located in the fourth opening and covers an exposed portion of the fourth anode.

8 . The display substrate according to claim 5 , further comprising:
a pixel circuit layer, located on a side of the anode layer close to the base substrate and comprising a plurality of pixel driving circuits, wherein the plurality of pixel driving circuits and the plurality of anodes are disposed in a one-one-to correspondence manner, each of the plurality of anodes is electrically connected to a corresponding one of the plurality of pixel driving circuit, the first anode comprises a first body portion and a first connection portion connected to the first body portion, the orthographic projection of the first opening on the base substrate falls into an orthographic projection of the first body portion on the base substrate, and the first connection portion is electrically connected to the corresponding one of the plurality of pixel driving circuits.

9 . The display substrate according to claim 8 , further comprising:
a first source-drain metal layer, located on the base substrate; a first planarization layer, located on a side of the first source-drain metal layer away from the base substrate; a second source-drain metal layer, located on a side of the first planarization layer away from the base substrate, and a second planarization layer, located on a side of the second source-drain metal layer away from the first planarization layer, and located on a side of the anode layer close to the first planarization layer, wherein the first source-drain metal layer comprises a first drain electrode and a power wire, the first drain electrode is a drain electrode of a corresponding one of the plurality of pixel driving circuits of the first anode, the second source-drain metal layer comprises a first connection electrode and a conductive portion, the first connection electrode is connected to the first drain electrode through a first via hole in the first planarization layer, the first anode is connected to the first connection electrode through a second via hole in the second planarization layer, the conductive portion extends along the second direction, and is connected to the power wire through a third via hole in the first planarization layer, and an orthographic projection of the spacer on the base substrate comprises a third long edge, in an extension direction of the third long edge, the spacer comprises a first portion close to the first opening group row and a second portion close to the second opening group row, an orthographic projection of the first portion on the base substrate is overlapped with an orthographic projection of the conductive portion on the base substrate, and an orthographic projection of the second portion on the base substrate is overlapped with an orthographic projection of the first connection electrode on the base substrate.

10 . The display substrate according to claim 9 , wherein the orthographic projection of the spacer on the base substrate is overlapped with an orthographic projection of the first via hole on the base substrate.

11 . The display substrate according to claim 9 , wherein a shape of the orthographic projection of the spacer on the base substrate comprises a rounded rectangle, and a shape of the orthographic projection of the first opening on the base substrate comprises a rounded hexagon; and
the orthographic projection of the first opening on the base substrate comprises a first short edge, the first short edge is a short edge that is of the rounded hexagon

Assignees

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

Inventors

• Zhang Hao
• Liu Tingliang
• Wang Yu
• Li Huijun
• Yang Huijuan
• Jiang Xiaofeng
• Zhang Xin
• Dai Jie
• Bai Lu
• Yu Pengfei
• Shang Tinghua

Classifications

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title

• H10K59/8723

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/123

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

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/131

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