Display panel and display device

Patent metadata

Field	Value
Publication number	US-12490605-B2
Application number	US-202218026000-A
Country	US
Kind code	B2
Filing date	Jan 30, 2022
Priority date	Jan 30, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

Provided are a display panel and a display device. The display panel includes: a pixel unit including a pixel circuit and a light-emitting element; a data line connected with the pixel circuit, the data line includes first-type data lines and second-type data lines, the second-type data line includes a first portion, a second portion, and a third portion, the third portion is connected with the first portion through a first via hole, the third portion is connected with the second portion through a second via hole, and the third portion includes a main trace located between the first via hole and the second via hole, at least one third portion includes a compensation trace, the compensation trace of the third portion is located at least one end of the main trace of the third portion, lengths of the plurality of third portions are equal or approximately equal.

First claim

The invention claimed is:

1 . A display panel, comprising:
a base substrate; a pixel unit, located on the base substrate, comprising a pixel circuit and a light-emitting element, wherein the pixel circuit is configured to drive the light-emitting element; and a data line, connected with the pixel circuit, and configured to supply a data voltage to the pixel circuit, wherein the data line comprises a plurality of first-type data lines and a plurality of second-type data lines, the plurality of first-type data lines are arranged in a first direction, each of the plurality of first-type data lines extends in a second direction, and the first direction intersects with the second direction, each of the plurality second-type data lines comprises a first portion, a second portion, and a third portion, the first portion is connected with the second portion by the third portion, the third portion is connected with the first portion through a first via hole, the third portion is connected with the second portion through a second via hole, and the third portion comprises a main trace located between the first via hole and the second via hole, the first portion and the second portion both extend in the second direction, and the third portion extends in the first direction, at least one third portion of a plurality of third portions of the plurality of second-type data lines comprises a compensation trace, the compensation trace of the third portion is located at at least one end of the main trace of the third portion, lengths of the plurality of third portions of the plurality of second-type data lines are equal or a ratio of a length difference between two adjacent third portions and an average length of the two adjacent third portions is less than or equal to 5%.

2 . The display panel according to claim 1 , wherein the plurality of third portions form a rectangle or a parallelogram.

3 . The display panel according to claim 1 , wherein the compensation trace of the third portion comprises a first compensation trace, the first compensation trace is located at one end of the third portion, in the second direction, lengths of a plurality of first compensation traces gradually change.

4 . The display panel according to claim 3 , wherein in the second direction, the lengths of the plurality of first compensation traces gradually increase or gradually decrease.

5 . The display panel according to claim 3 , wherein the compensation trace of the third portion further comprises a second compensation trace, the first compensation trace and the second compensation trace are located at both ends of the third portion, respectively, lengths of a plurality of second compensation traces gradually change, in the second direction, a length change trend of the plurality of first compensation traces is the same as a length change trend of the plurality of second compensation traces.

6 . The display panel according to claim 1 , wherein the second-type data line further comprises a fourth portion and a fifth portion, the fourth portion extends in the second direction, the fifth portion extends in the first direction, the first portion is connected with the fourth portion by the fifth portion, the fifth portion is connected with the first portion through a third via hole, and the fifth portion is connected with the fourth portion through a fourth via hole, the fifth portion comprises a main trace located between the third via hole and the fourth via hole,
at least one fifth portion of a plurality of fifth portions of the plurality of second-type data lines comprises a compensation trace, the compensation trace of the fifth portion is located at at least one end of the main trace of the fifth portion, lengths of a plurality of the fifth portions of the plurality of second-type data lines are equal or a ratio of a length difference between two adjacent fifth portions and an average length of the two adjacent fifth portions is less than or equal to 5%.

7 . The display panel according to claim 6 , wherein the compensation trace of the fifth portion comprises a third compensation trace, the third compensation trace is located at one end of the fifth portion, and in the second direction, lengths of a plurality of third compensation traces gradually change.

8 . The display panel according to claim 6 , wherein the compensation trace of the fifth portion further comprises a fourth compensation trace, the third compensation trace and the fourth compensation trace are located at both ends of the fifth portion, respectively, lengths of a plurality of fourth compensation traces gradually change, in the second direction, a length change trend of the plurality of third compensation traces is the same as a length change trend of the plurality of fourth compensation traces.

9 . The display panel according to claim 6 , wherein
the first portion comprises a main trace located between the first via hole and the third via hole, at least one first portion of a plurality of first portions of the plurality of second-type data lines comprises a compensation trace, the compensation trace of the first portion is located at at least one end of the main trace of the first portion, lengths of the plurality of first portions of the plurality of second-type data lines are equal or a ratio of a length difference between two adjacent first portions and an average length of the two adjacent first portions is less than or equal to 5%.

10 . The display panel according to claim 9 , wherein the compensation trace of the first portion comprises a fifth compensation trace, the fifth compensation trace is located at one end of the first portion, in the first direction, lengths of a plurality of fifth compensation traces gradually change.

11 . The display panel according to claim 9 , wherein the compensation trace of the first portion further comprises a sixth compensation trace, the fifth compensation trace and the sixth compensation trace are located at both ends of the main trace of the first portion, respectively, lengths of a plurality of sixth compensation traces gradually change, in the first direction, a length change trend of the plurality of fifth compensation traces is the same as a length change trend of the plurality of sixth compensation traces.

12 . The display panel according to claim 6 , wherein
the fourth portion comprises a main trace located between the fourth via hole and the second display region, at least one fourth portion of a plurality of fourth portions of the plurality of second-type data lines comprises a compensation trace, the compensation trace of the fourth portion is located at one end of the main trace of the fourth portion away from the second display region, lengths of the plurality of fourth portions of the plurality of second-type data lines are equal or a ratio of a length difference between two adjacent fourth portions and an average length of the two adjacent fourth portions is less than or equal to 5%.

13 . The display panel according to claim 12 , wherein the plurality of fourth portions form a rectangle or a parallelogram.

14 . The display panel according to claim 12 , wherein the compensation trace of the fourth portion comprises a seventh compensation trace, the seventh compensation trace is located at one end of the fourth portion, and in the first direction, lengths of a plurality of seventh compensation traces gradually change.

15 . The display panel according to claim 1 , wherein lengths of the plurality of second-type data lines are equal or a ratio of a length difference of the plurality of second-type data line

Assignees

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

Inventors

• Xiao Bangqing
• Yan Zhuoran
• Liu Cong
• Wang Binyan
• Huang Yao
• Li Shuang

Classifications

• H10K59/13 Primary

  comprising photosensors that control luminance · CPC title

• H10K59/131 Primary

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

• G09G3/3225

  using an active matrix · CPC title