Display substrate and display device

Patent metadata

Field	Value
Publication number	US-12394375-B2
Application number	US-202318494897-A
Country	US
Kind code	B2
Filing date	Oct 26, 2023
Priority date	Nov 29, 2019
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array in a first direction and a second direction, the first direction intersecting with the second direction. The display substrate further includes data lines extended in the first direction, and the data lines are connected in one-to-one correspondence with the sub-pixels in columns in each row of sub-pixels, so as to provide data signals respectively; the display substrate further includes auxiliary electrode lines extended in the first direction which are configured to be electrically connected with a second electrode of the light emitting element to provide a second power voltage; each of the auxiliary electrode lines is spaced from any one of the plurality of data lines by at least one column of sub-pixels.

First claim

What is claimed is:

1. A display substrate, comprising:
a base substrate, and
a plurality of sub-pixels on the base substrate,
wherein the plurality of sub-pixels are arranged in a plurality of sub-pixel columns in a first direction and a plurality of sub-pixel rows in a second direction, the first direction intersecting with the second direction, each of the plurality of sub-pixels comprising a pixel circuit configured to drive a light emitting element to emit light,
the display substrate further comprises a plurality of data lines extended in the first direction, and the plurality of data lines are connected in one-to-one correspondence with the plurality of sub-pixel columns, so as to provide a plurality of data signals respectively;
each of the plurality of sub-pixel rows is divided into a plurality of sub-pixel groups, and each of the plurality of sub-pixel groups comprises a first sub-pixel, a second sub-pixel and a third sub-pixel arranged in the second direction successively; correspondingly, the plurality of data lines are divided into a plurality of data line groups, each data line group comprising a first data line, a second data line, and a third data line connected to the first sub-pixel, the second sub-pixel, and the third sub-pixel respectively;
for each of the plurality of sub-pixel groups, the first data line, the second data line and the third data line correspondingly connected to the each sub-pixel group are all between the first sub-pixel and the third sub-pixel;
the display substrate further comprises a plurality of auxiliary electrode lines extended in the first direction, and the plurality of auxiliary electrode lines are configured to be electrically connected with a second electrode of the light emitting element to provide a second power voltage; each of the plurality of auxiliary electrode lines is spaced from any one of the plurality of data lines by at least one of the plurality of sub-pixel columns;
the display substrate further comprises a first insulating layer; one of the plurality of auxiliary electrode lines is on a side of the first insulating layer close to the base substrate and is configured to be electrically connected with the second electrode of the light emitting element through a first via hole in the first insulating layer;
said one auxiliary electrode line is in a same layer as and insulated from any one of the plurality of data lines.

2. The display substrate according to claim 1 , wherein the light emitting element comprises a first electrode, a light emitting layer and the second electrode which are stacked successively;
the display substrate further comprises a connection electrode, the connection electrode and the first electrode of the light emitting element are in a same layer and insulated from each other, and the connection electrode is used to electrically connect said one auxiliary electrode line to the second electrode of the light emitting element.

3. The display substrate according to claim 2 , further comprising a second insulating layer on a side of the first insulating layer away from the base substrate,
wherein the connection electrode is on a side of the second insulating layer away from the base substrate, and is electrically connected with said one auxiliary electrode line through the first via hole in the first insulating layer and a second via hole in the second insulating layer.

4. The display substrate according to claim 1 , further comprising a plurality of first detection lines,
wherein for each of the plurality of sub-pixel rows, in the second direction, an n-th sub-pixel group and an (n+1)th sub-pixel group constitute a first sub-pixel group unit, thereby providing a first sub-pixel group unit array comprising a plurality of first sub-pixel group units, wherein n is an odd number or an even number greater than 0;
a column direction of the first sub-pixel group unit array is the first direction, the plurality of first detection lines are respectively connected with a plurality of columns of first sub-pixel group units in one-to-one correspondence, and the sub-pixels of the first sub-pixel group units in a same one column are all electrically connected with one first detection line corresponding to the one column of first sub-pixel group units;
each of the plurality of first detection lines is spaced from any one of the plurality of data lines by at least one of the plurality of sub-pixel columns.

5. The display substrate according to claim 4 , wherein in each of the plurality of first sub-pixel group units, the third sub-pixel of the n-th sub-pixel group is adjacent to the first sub-pixel of the (n+1)th sub-pixel group, and the first detection line corresponding to the first sub-pixel group unit is between the third sub-pixel of the n-th sub-pixel group and the first sub-pixel of the (n+1)th sub-pixel group.

6. The display substrate according to claim 4 , wherein the plurality of auxiliary electrode lines and the plurality of first detection lines are arranged in one-to-one correspondence, and each of the plurality of auxiliary electrode lines is directly adjacent to an adjacent first detection line without a sub-pixel therebetween.

7. The display substrate according to claim 4 , further comprising a plurality of detection line segments extended in the second direction,
wherein the plurality of detection line segments are distributed in a detection line array and are respectively connected with the plurality of first sub-pixel group units in one-to-one correspondence, and the sub-pixels in each of the plurality of first sub-pixel group units are electrically connected with one detection line segment corresponding to the each first sub-pixel group.

8. The display substrate according to claim 7 , wherein the plurality of first detection lines are electrically connected to a plurality of columns of detection line segments in the detection line array in one-to-one correspondence, and the detection line segments in one column intersect with and are electrically connected with one corresponding first detection line.

9. The display substrate according to claim 7 , further comprising a plurality of first power lines extended in the first direction,
wherein the plurality of first power lines are configured to provide the first power voltage to the plurality of sub-pixels, and the first power line is not overlapped with the detection line segment in a direction perpendicular to the base substrate.

10. The display substrate according to claim 9 , wherein each of the plurality of first power lines is spaced from any one of the plurality of data lines by at least one of the plurality of sub-pixels.

11. The display substrate according to claim 9 , wherein each of the plurality of first power lines is spaced from any one of the plurality of auxiliary electrode lines by at least one of the plurality of sub-pixel groups.

12. The display substrate according to claim 9 , wherein for each of the plurality of sub-pixel rows, in the second direction, an (n+1)th sub-pixel group and an (n+2)th sub-pixel group constitute a second sub-pixel group unit, thereby providing a second sub-pixel group unit array comprising a plurality of second sub-pixel group units,
a column direction of the second sub-pixel group unit array is the first direction, the plurality of first power lines are correspondingly connected with the plurality of columns of second sub-pixel group units respectively, and the sub-pixels in the second sub-pixel group units in a same column are electrically connected with one corresponding first power line.

13. The display substrate according to claim 12 , wherein in each of the plurality

Assignees

• Hefei Boe Joint Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Yuan Can
• Li Yongqian
• Li Meng
• Yuan Zhidong
• Zhang Dacheng
• Liu Lang

Classifications

• H10K50/813

  characterised by their shape · CPC title

• H10K50/824

  combined with auxiliary electrodes · 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

• H10K59/80522

  combined with auxiliary electrodes · CPC title