IP Library Granted Patent US 12666814
Granted Patent B2
US 12666814 · App. 17/289,224 · Granted Jun 23, 2026

Display panel

Inventors: Jun Yang (Wuhan, CN); Kuihua You (Wuhan, CN); Peng Huang (Wuhan, CN)
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
H10K59/131H10K59/179H10K59/90
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Quick Facts
Patent No.
US 12666814
App. No.
17/289,224
Granted
Jun 23, 2026
Kind
B2
Abstract

The present application discloses a display panel. A thickening layer includes a first portion. An orthographic projection of a first backplate on a plane of a bonding substrate is a first projection. An orthographic projection of a circuit board on the plane of the bonding substrate is a second projection. A terminal portion includes a first region and a second region. The first region is an overlapping region of the first projection and the second projection. The first portion is disposed in the second region and extends from a junction of the first region and the second region to a side away from the first region.

Claims (32)

1 . A display panel, comprising a display portion, a terminal portion, and a bending portion connected between the display portion and the terminal portion;

wherein the terminal portion comprises:

a first backplate;

a bonding substrate disposed on the first backplate;

a circuit board disposed on the bonding substrate; and

a thickening layer comprising a first portion;

wherein an orthographic projection of the first backplate on a plane of the bonding substrate is a first projection, and an orthographic projection of the circuit board on the plane of the bonding substrate is a second projection;

wherein the terminal portion comprises a first region and a second region, and the first region is an overlapping region of the first projection and the second projection;

wherein in a first direction, the second region is connected to the first region and is disposed on a side of the first region, and the first direction is parallel to a longitudinal direction of the first backplate; and

wherein the first portion is disposed in the second region and extends from a junction of the first region and the second region to a side away from the first region.

2 . The display panel according to claim 1 , wherein the terminal portion further comprises a third region, and in the first direction, the third region is connected to the first region and is disposed on another side of the first region; and

the thickening layer further comprises a second portion disposed in the third region, and the second portion extends from a junction of the first region and the third region to a side away from the first region.

3 . The display panel according to claim 1 , wherein the thickening layer further comprises a third portion disposed in the first region and connected to the first portion.

4 . The display panel according to claim 2 , wherein the thickening layer further comprises a fourth portion disposed in the first region and connected to the second portion.

5 . The display panel according to claim 3 , wherein the terminal portion further comprises a third region, and in the first direction, the third region is connected to the first region and is disposed on another side of the first region;

the thickening layer further comprises a second portion disposed in the third region, and the second portion extends from a junction of the first region and the third region to a side away from the first region; and

the third portion is connected to the second portion.

6 . The display panel according to claim 1 , wherein a length of the first portion is less than or equal to a length of the second region.

7 . The display panel according to claim 1 , wherein a width of the first portion is less than or equal to a width of the first region.

8 . The display panel according to claim 1 , wherein from the junction of the first region and the second region to a direction away from the first region, a thickness of the first portion progressively decreases or remains constant.

9 . The display panel according to claim 5 , wherein a length of the thickening layer is less than or equal to a length of the first backplate.

10 . The display panel according to claim 5 , wherein a width of the thickening layer is less than or equal to a width of the first region.

11 . The display panel according to claim 5 , wherein in the first direction, from a center line of the first region to a direction away from the center line, a thickness of the thickening layer progressively decreases or remains constant.

12 . The display panel according to claim 1 , wherein the thickening layer is disposed on a surface of the first backplate away from the bonding substrate.

13 . The display panel according to claim 12 , wherein the thickening layer and the first backplate are an integrated structure.

14 . The display panel according to claim 1 , wherein the thickening layer is disposed on the bonding substrate.

15 . The display panel according to claim 5 , wherein the first portion and the second portion are disposed on the bonding substrate, and the third portion is disposed on the circuit board.

16 . The display panel according to claim 5 , wherein a width of the thickening layer is greater than a width of the first region and less than or equal to a width of the first backplate.

17 . The display panel according to claim 1 , wherein a width of the first portion is greater than a width of the first region and less than or equal to a width of the first backplate.

18 . The display panel according to claim 2 , wherein a width of the second portion is less than or equal to a width of the first region.

19 . The display panel according to claim 3 , wherein a width of the third portion is less than or equal to a width of the first region.

20 . The display panel according to claim 4 , wherein a width of the fourth portion is less than or equal to a width of the first region.