IP Library › Granted Patent US 12663676
Granted Patent B2
US 12663676 · App. 18/569,229 · Granted Jun 23, 2026

Display panel and display device

Inventors: Bin Zhao (Guangzhou, CN); Juncheng Xiao (Guangzhou, CN); Shan Li (Guangzhou, CN); Kuhuang Lai (Guangzhou, CN); Wei Liu (Guangzhou, CN); Huaipei Wang (Guangzhou, CN)
Assignee: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
G02F1/1339G02F1/133368G02F1/133512G02F1/1337
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12663676
App. No.
18/569,229
Granted
Jun 23, 2026
Kind
B2
Abstract

A display panel and a display device are provided. A display panel includes a first substrate, a second substrate and a photo spacer disposed between the first substrate and the second substrate. The first substrate includes a first base and a first alignment layer. The first alignment layer includes a first portion and a second portion. The second portion surrounds the first portion. One end of the photo spacer is connected to the second substrate, and the other end of the photo spacer corresponds to the first portion. A distance between the first portion and the second substrate is different from a distance between the second portion and the second substrate.

Claims (32)

1 . A display panel comprising: a first substrate, a second substrate, and a photo spacer disposed between the first substrate and the second substrate, the first substrate and/or the second substrate comprising a light shielding layer having a plurality of apertures, and an orthographic projection of the light shielding layer on the first substrate covering at least a portion of an orthographic projection of the photo spacer on the first substrate;

wherein the first substrate comprises a first base and a first alignment layer disposed on one side of the first substrate which faces towards the second substrate, the first alignment layer comprises a first portion and a second portion, the second portion surrounds around the first portion, one end of the photo spacer is connected to the second substrate, an other end of the photo spacer corresponds to the first portion, and a distance between the first portion and the second substrate is different from a distance between the second portion and the second substrate;

wherein the first substrate comprises a plurality of metal layers disposed between the first base and the first alignment layer, and one of the plurality of metal layers which is closest to the first alignment layer is a first metal layer, wherein the first metal layer overlaps the first portion and the second portion in a direction perpendicular to the first base;

wherein a distance between the first portion and the second substrate is less than a distance between the second portion and the second substrate;

in the direction perpendicular to the first base, a thickness of a portion of the first metal layer which is overlapped with the first portion is greater than a thickness of a portion of the first metal layer which is overlapped with the second portion.

2 . The display panel according to claim 1 , wherein the orthographic projection of the light shielding layer on the first substrate covers an orthographic projection of the first portion on the first substrate.

3 . The display panel according to claim 1 , wherein the first metal layer is provided on an intersection region of an extension line of a data line and an extension line of a scan line, and/or the orthographic projection of the light shielding layer on the first substrate covers an orthographic projection of the first metal layer on the first substrate.

4 . A display panel, comprising: a first substrate, a second substrate, and a photo spacer disposed between the first substrate and the second substrate, the first substrate and/or the second substrate comprising a light shielding layer having a plurality of apertures, and an orthographic projection of the light shielding layer on the first substrate covering at least a portion of an orthographic projection of the photo spacer on the first substrate;

wherein the first substrate comprises a first base and a first alignment layer disposed on one side of the first substrate which faces towards the second substrate, the first alignment layer comprises a first portion and a second portion, the second portion surrounds around the first portion, one end of the photo spacer is connected to the second substrate, an other end of the photo spacer corresponds to the first portion, and a distance between the first portion and the second substrate is different from a distance between the second portion and the second substrate;

wherein the first substrate comprises a plurality of metal layers disposed between the first base and the first alignment layer, and one of the plurality of metal layers which is closest to the first alignment layer is a first metal layer, wherein the first metal layer overlaps the first portion and the second portion in a direction perpendicular to the first base;

wherein a distance between the first portion and the second substrate is greater than a distance between the second portion and the second substrate.

5 . The display panel according to claim 4 , wherein

in the direction perpendicular to the first base, a thickness of a portion of the first metal layer which is overlapped with the first portion is smaller than a thickness of a portion of the first metal layer which is overlapped with the second portion.

6 . The display panel according to claim 4 , wherein a thickness of a portion of the first metal layer which is overlapped with the first portion is equal to a thickness of a portion of the first metal layer which is overlapped with the second portion, wherein a first passivation layer is disposed between the first metal layer and the first alignment layer,

the first passivation layer overlaps the second portion and does not overlap the first portion in a direction perpendicular to the first base;

or, in the direction perpendicular to the first base, the first passivation layer overlaps the first portion and the second portion, and a thickness of a portion of the first passivation layer which is overlapped with the first portion is smaller than a thickness of a portion of the first passivation layer which is overlapped with the second portion.

7 . The display panel according to claim 4 , wherein a first passivation layer is disposed between the first metal layer and the first alignment layer, wherein

in a direction perpendicular to the first base, a thickness of a portion of the first metal layer which is overlapped with the first portion is greater than a thickness of a portion of the first metal layer which is overlapped with the second portion;

the first passivation layer overlaps the second portion and does not overlap the first portion in the direction perpendicular to the first base.

8 . The display panel according to claim 4 , wherein the first metal layer is disposed on an intersection region of an extension line of a data line and an extension line of a scan line, and/or the orthographic projection of the light shielding layer on the first substrate covers an orthographic projection of the first metal layer on the first substrate.

9 . A display device, comprising a housing and a display panel, wherein the housing comprises an accommodating space, and the display panel is disposed in the accommodating space, wherein the display panel comprises a first substrate, a second substrate, and a photo spacer, the photo spacer is disposed between the first substrate and the second substrate, the first substrate and/or the second substrate comprise a light shielding layer having a plurality of apertures, and an orthographic projection of the light shielding layer on the first substrate covers at least a portion of the orthographic projection of the photo spacer on the first substrate;

wherein the first substrate comprises a first base and a first alignment layer disposed on one side of the first substrate which faces towards the second substrate, the first alignment layer comprises a first portion and a second portion, the second portion surrounds the first portion, one end of the photo spacer is connected to the second substrate, an other end of the photo spacer corresponds to the first portion, and a distance between the first portion and the second substrate is different from a distance between the second portion and the second substrate;

wherein the first substrate comprises a plurality of metal layers disposed between the first base and the first alignment layer, and one of the plurality of metal layers which is closest to the first alignment layer is a first metal layer, wherein the first metal layer overlaps the first portion and the second portion in a direction perpendicular to the first base;

wherein the distance between the first portion and the second substrate is greater than the distance between the second portion and the second substrate.

10 . The display device according to claim 9 , wherein in the direction perpendicular to the first base, a thickness of a portion of the first metal layer which is overlapped with the first portion is smaller than a thickness of a portion of the first metal layer which is overlapped with the second portion.

11 . The display device according to claim 9 , wherein a thickness of a portion of the first metal layer which is overlapped with the first portion is equal to a thickness of a portion of the first metal layer which is overlapped with the second portion, wherein a first passivation layer is disposed between the first metal layer and the first alignment layer,

the first passivation layer overlaps the second portion and does not overlap the first portion in a direction perpendicular to the first base;

or, in the direction perpendicular to the first base, the first passivation layer overlaps the first portion and the second portion, and a thickness of a portion of the first passivation layer which is overlapped with the first portion is smaller than a thickness of a portion of the first passivation layer which is overlapped with the second portion.

12 . The display device according to claim 9 , wherein a first passivation layer is disposed between the first metal layer and the first alignment layer, wherein

in a direction perpendicular to the first base, a thickness of a portion of the first metal layer which is overlapped with the first portion is greater than a thickness of a portion of the first metal layer which is overlapped with the second portion;

the first passivation layer overlaps the second portion and does not overlap the first portion in the direction perpendicular to the first base.

13 . The display device according to claim 9 , wherein the first metal layer is disposed on an intersection region of an extension line of a data line and an extension line of a scan line, and/or the orthographic projection of the light shielding layer on the first substrate covers an orthographic projection of the first metal layer on the first substrate.