Display panel and display device

Patent metadata

Field	Value
Publication number	US-12532540-B2
Application number	US-202418746495-A
Country	US
Kind code	B2
Filing date	Jun 18, 2024
Priority date	May 11, 2020
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

A display panel is provided, including a base substrate, pixel units, signal lines, and a light shielding portion. Each pixel unit includes a light-emitting element and a pixel driving circuit. The pixel units include first pixel units in a first display region of the display panel and second pixel units in a second display region of the display panel. The signal lines are electrically connected to pixel driving circuits of the second pixel units respectively. Orthographic projections of at least two of the signal lines on the base substrate are spaced apart from each other by a gap, and an orthographic projection of the light shielding portion on the base substrate covers an orthographic projection of the gap on the base substrate and orthographic projections of the second pixel units. The light shielding portion includes first light shielding sub-portions arranged in an array along row and column directions.

First claim

The invention claimed is:

1 . A display panel, comprising a first display region and a second display region at least partially surrounded by the first display region; the display panel comprising:
a base substrate; a plurality of pixel units arranged on a side of the base substrate, wherein each pixel unit comprises a pixel driving circuit and a light-emitting element, the pixel driving circuit is configured to drive the light-emitting element, and the plurality of pixel units comprise a plurality of first pixel units in the first display region and a plurality of second pixel units in the second display region; a plurality of signal lines, the plurality of signal lines being electrically connected to pixel driving circuits of the plurality of second pixel units respectively; and a light shielding portion on the side of the base substrate, wherein orthographic projections of at least two ones of the plurality of signal lines on the base substrate are spaced apart from each other by a gap, and an orthographic projection of the light shielding portion on the base substrate covers an orthographic projection of the gap on the base substrate and orthographic projections of the plurality of second pixel units; wherein the light shielding portion comprises a plurality of first light shielding sub-portions, the plurality of first light shielding sub-portions being arranged in an array along a row direction and a column direction, the row direction and the column direction are both parallel to a plane in which the base substrate is located; wherein an orthographic projection of one of the plurality of first light shielding sub-portions on the base substrate covers an orthographic projection of a respective one of the plurality of second pixel units on the base substrate; wherein in two adjacent rows of first light shielding sub-portions, first light shielding sub-portions in one row and first light shielding sub-portions in the other row are alternately arranged along the row direction; and/or in two adjacent columns of first light shielding sub-portions, first light shielding sub-portions in one column and first light shielding sub-portions in the other column are alternately arranged along the column direction.

2 . The display panel according to claim 1 , wherein the first display region has a first pixel density, the second display region has a second pixel density, and the first pixel density is larger than the second density.

3 . The display panel according to claim 1 , wherein the light shielding portion further comprises a plurality of second light shielding sub-portions, the plurality of first light shielding sub-portions are connected as an integral structure through at least one of the plurality of second light shielding sub-portions, and orthographic projections of the plurality of second light shielding sub-portions on the base substrate cover orthographic projections of the plurality of signal lines in the second display region on the base substrate.

4 . The display panel according to claim 3 , wherein in two adjacent rows of first light shielding sub-portions, a spacing between two adjacent first light shielding sub-portions in one row along the row direction is substantially equal to a spacing between two adjacent first light shielding sub-portions in the other row along the row direction; and/or
wherein in two adjacent columns of first light shielding sub-portions, a spacing between two adjacent first light shielding sub-portions in one column along the column direction is substantially equal to a spacing between two adjacent first light shielding sub-portions in the other column along the column direction.

5 . The display panel according to claim 1 , wherein two adjacent first light shielding sub-portions in the column direction are connected as an integral structure through at least one of the plurality of second light shielding sub-portions.

6 . The display panel according to claim 5 , wherein in an N th row of first light shielding sub-portions and an (N+1) th row of first light shielding sub-portions, first light shielding sub-portions in the N th row and first light shielding sub-portions in the (N+1) th row are sequentially connected as an integral structure through more than one second light shielding sub-portion, wherein N is an odd number.

7 . The display panel according to claim 1 , wherein in any two adjacent rows of first light-shielding sub-portions, first light-shielding sub-portions in one row and first light-shielding sub-portions in the other row are sequentially connected as an integral structure through more than one second light shielding sub-portion.

8 . The display panel according to claim 4 , wherein in the two adjacent rows of first light shielding sub-portions, first light shielding sub-portions in one row and first light shielding sub-portions in the other row are arranged adjacent to each other along the column direction respectively; and/or
in the two adjacent columns of first light shielding sub-portions, first light shielding sub-portions in one column and first light shielding sub-portions in the other column are arranged adjacent to each other along the row direction respectively.

9 . The display panel according to claim 8 , wherein the two adjacent first light shielding sub-portions in the column direction are connected as an integral structure through at least one of the plurality of second light shielding sub-portions; and/or
wherein the two adjacent first light shielding sub-portions in the row direction are connected to as an integral structure through at least one of the plurality of second light shielding sub-portions.

10 . The display panel according to claim 6 , wherein an orthographic projection of the first light shielding sub-portion on the base substrate is substantially in a shape of a trapezoid with curved side edges.

11 . The display panel according to claim 10 , wherein in the (N+1) th row of first light shielding sub-portions, the first light shielding sub-portion has a first notch, the first notch is located on a side edge of the first light shielding sub-portion close to the N th row of first light shielding sub-portions, and the first notch is recessed in a direction away from the N th row of first light shielding sub-portions.

12 . The display panel according to claim 7 , further comprising a plurality of light transmittance regions in the second display region, orthographic projections of the plurality of light transmittance regions on the base substrate do not overlap the orthographic projection of the light shielding portion on the base substrate, and an orthographic projection of each of the plurality of light transmittance regions on the base substrate has a rectangular shape with rounded corners.

13 . The display panel according to claim 9 , wherein a profile of an orthographic projection of a first light shielding sub-portion on the base substrate has an approximately rectangular shape, and the approximately rectangular shape has an arc-shaped transition at each of four corners.

14 . The display panel according to claim 13 , wherein a second light shielding sub-portion between two adjacent first light shielding sub-portions in the row direction is in a shape of a straight line extending along the row direction; and/or
wherein the second light shielding sub-portion between two adjacent first light shielding sub-portions in the column direction is in a shape of a straight line extending along the column direction.

15 . The display panel according to claim 14 , wherein for the first light shielding sub-portion and t

Assignees

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

Inventors

• Long Yue
• Liu Cong
• Qiu Yuanyou
• Wang Binyan
• Huang Weiyun

Classifications

• H10K59/131 Primary

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

• H10K59/126

  Shielding, e.g. light-blocking means over the TFTs · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/121

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