Color film substrate, display panel and display device

Patent metadata

Field	Value
Publication number	US-12529924-B2
Application number	US-202218292327-A
Country	US
Kind code	B2
Filing date	Jun 24, 2022
Priority date	Jun 24, 2022
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

A color film substrate includes a first base substrate, a color film layer disposed at one side of the first base substrate, a protective layer disposed at one side of the color film layer away from the first base substrate, and a plurality of first spacers disposed corresponding to the plurality of first grooves. In the non-display region, a plurality of first grooves are provided at one surface of the protective layer away from the first base substrate.A part of the first spacer is disposed in the first groove.

First claim

What is claimed is:

1 . A color film substrate having a display region and a non-display region, wherein the color film substrate comprises:
a first base substrate; a color film layer, disposed at one side of the first base substrate; a protective layer, disposed at one side of the color film layer farthest away from the first base substrate, wherein in the non-display region, a plurality of first grooves are provided at one surface of the protective layer farthest away from the first base substrate; and a plurality of first spacers, disposed corresponding to the plurality of first grooves, wherein a part of the first spacer is disposed in the first groove.

2 . The color film substrate according to claim 1 , wherein in the non-display region, a plurality of second grooves are provided on the color film layer, and the plurality of second grooves are disposed corresponding to the plurality of first grooves.

3 . The color film substrate according to claim 2 , wherein an orthographic projection of the first groove on the first base substrate is located in an orthographic projection of the second groove on the first base substrate.

4 . The color film substrate according to claim 2 , wherein the second groove has a larger depth than the first groove; or
the second groove is a through hole passing through the color film layer.

5 . The color film substrate according to claim 2 , wherein in the non-display region, a distance between one surface of the color film layer farthest away from the first base substrate and the first base substrate increases as a distance between the surface of the color film layer farthest away from the first base substrate and the display region increases, and a distance between the surface of the protective layer farthest away from the first base substrate and the first base substrate increases as a distance between the surface of the protective layer farthest away from the first base substrate and the display region increases.

6 . The color film substrate according to claim 5 , wherein depths of the plurality of first grooves are different, and the depths of the plurality of first grooves increase as distances between the plurality of first grooves and the display region increase; and
depths of the plurality of second grooves are different, and the depths of the plurality of second grooves increase as distances between the plurality of second grooves and the display region increase.

7 . The color film substrate according to claim 1 , wherein an orthographic projection of the first spacer on the first base substrate is located in an orthographic projection of a groove bottom wall of the first groove on the first base substrate.

8 . The color film substrate according to claim 1 , wherein the color film substrate further comprises:
a second spacer, disposed at one side of the protective layer farthest away from the first base substrate, and located in the display region.

9 . The color film substrate according to claim 8 , wherein one surface of the second spacer farthest away from the first base substrate is coplanar with one surface of the first spacer farthest away from the first base substrate; or the first spacers are arranged in a same regular array as the second spacers.

10 . The color film substrate according to claim 9 , wherein the plurality of first spacers are arranged in a plurality of first columns along a first direction, the plurality of second spacers are arranged in a plurality of second columns along the first direction, and the plurality of first columns are provided in one-to-one correspondence with the plurality of second columns, and any one of the first columns is disposed in a same column as a corresponding one of the second columns;
the plurality of first spacers are arranged in a plurality of first rows along a second direction, the plurality of second spacers are arranged in a plurality of second rows along the second direction, and the plurality of first rows are provided in one-to-one correspondence with the plurality of second rows, and any one of the first rows is disposed in a same row as a corresponding one of the second rows; and the first direction is intersected with the second direction, and the first direction and the second direction are parallel to one surface of the first base substrate closest to the color film layer.

11 . The color film substrate according to claim 1 , wherein the protective layer comprises:
a first part, located in the non-display region, and located at the side of the color film layer farthest away from the first base substrate; and a second part, connected to the first part, and located in the display region; wherein a distance between one surface of the first part farthest away from the first base substrate and the first base substrate is larger than a distance between one surface of the second part farthest away from the first base substrate and the first base substrate; and a distance between the surface of the first part farthest away from the first base substrate and the surface of the second part farthest away from the first base substrate is less than or equal to 0.5 micrometers.

12 . The color film substrate according to claim 11 , wherein the surface of the second part farthest away from the first base substrate is coplanar with one surface of the first groove farthest away from the first base substrate.

13 . The color film substrate according to claim 1 , wherein the color film layer comprises:
a first light-filtering portion, a second light-filtering portion and a third light-filtering portion, disposed in the display region; and a dummy portion, disposed in the non-display region.

14 . The color film substrate according to claim 13 , wherein the color film substrate further comprises:
a blocking layer, disposed between the color film layer and the first base substrate; wherein in the display region, a plurality of first vias are provided on the blocking layer, and a part of the first light-filtering portion, a part of the second light-filtering portion and a part of the third light-filtering portion are correspondingly disposed in the plurality of first vias; and in the non-display region, the dummy portion is disposed at one side of the blocking layer farthest away from the first base substrate; or the first light-filtering portion is a red light-filtering portion, the second light-filtering portion is a green light-filtering portion, and the third light-filtering portion is a blue light-filtering portion.

15 . The color film substrate according to claim 14 , wherein an orthographic projection of the first light-filtering portion on the first base substrate is overlapped with an orthographic projection of the blocking layer on the first base substrate,
an orthographic projection of the second light-filtering portion on the first base substrate is overlapped with the orthographic projection of the blocking layer on the first base substrate, and an orthographic projection of the third light-filtering portion on the first base substrate is overlapped with the orthographic projection of the blocking layer on the first base substrate.

16 . The color film substrate according to claim 15 , wherein the orthographic projection of the first light-filtering portion on the first base substrate is overlapped with orthographic projections, on the first base substrate, of the second light-filtering portion and the third light-filtering portion that are adjacent to the first light-filtering portion; and
the orthographic projection of the second light-filtering portion

Assignees

• Hefei Xinsheng Optoelectronics Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Chen Jianjian
• Ma Li
• Chen Peng
• Du Huakun
• Lv Fengzhen
• Wang Jingpeng
• Zhang Dongdong
• Zhang Bo

Classifications

• G02F2201/50

  Protective arrangements · CPC title

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/13396

  Spacers having different sizes · CPC title

• G02F1/133388 Primary

  with constructional differences between the display region and the peripheral region · CPC title