IP Library Granted Patent US 12,232,355
Granted Patent B2
US 12,232,355 · App. 17/676,404 · Granted Feb 18, 2025

Display panel, method for manufacturing same, and display apparatus

Inventors: Tao Chen (Beijing, CN); Hsinju Ho (Beijing, CN); Honglei Hai (Beijing, CN); Fenggang Zhang (Beijing, CN)
Assignees: MIANYANG BOE OPTOELECTRONICS TECHNOLOGY CO., Ltd.; BOE Technology Group Co., Ltd.
H10K50/844H10K71/00H10K71/80H10K71/851
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Quick Facts
Patent No.
US 12,232,355
App. No.
17/676,404
Granted
Feb 18, 2025
Kind
B2
Abstract

A display panel is provided. The display panel includes: a substrate, and a light-emitting device, an encapsulation layer and an auxiliary barrier which are disposed on the substrate. The light-emitting device is disposed in a display area, and the auxiliary barrier is disposed in a non-display area. A height of the auxiliary barrier is greater than a distance between a side of the encapsulation layer away from the substrate and the substrate.

Claims (24)

1. A display panel, comprising:

a substrate, comprising a display area and a non-display area surrounding the display area;

a light-emitting device and an encapsulation layer which are disposed on the substrate, the light-emitting device being disposed in the display area; and

an auxiliary barrier disposed on the substrate, the auxiliary barrier being disposed in the non-display area;

wherein a height of the auxiliary barrier is greater than a distance between a side of the encapsulation layer away from the substrate and the substrate,

wherein the encapsulation layer comprises: a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are laminated,

the display panel further comprising:

a barrier body disposed in the non-display area, wherein the barrier body is closer to the display area than the auxiliary barrier is, the first inorganic encapsulation layer and the second inorganic encapsulation layer cover the barrier body, and an orthographic projection of the organic encapsulation layer on the substrate and an orthographic projection of the barrier body on the substrate are not overlapped, wherein the barrier body is annular, and the barrier body is disposed around the display area, wherein two barrier bodies are provided, and the two barrier bodies are a first barrier body and a second barrier body respectively, wherein the first barrier body is closer to the display area than the second barrier body is, and a height of the second barrier body is greater than a height of the first barrier body, wherein the non-display area comprises: a diffusion area disposed between the second barrier body and the auxiliary barrier, and the encapsulation layer comprises an inorganic layer disposed in the diffusion area, wherein a thickness of the inorganic layer gradually decreases along a direction from the second barrier body to the auxiliary barrier.

2. The display panel according to claim 1 , wherein the auxiliary barrier is annular, and the auxiliary barrier is disposed around the display area.

3. The display panel according to claim 2 , wherein a plurality of auxiliary barriers are provided, and the plurality of auxiliary barriers are sequentially socketed.

4. The display panel according to claim 1 , wherein a shape of the display area is a polygon, the auxiliary barrier is a bent barrier formed by two strip-shaped barriers connected with each other, and the auxiliary barrier is disposed around a top corner of the display area.

5. The display panel according to claim 4 , wherein the shape of the display area is a rectangle, and four auxiliary barriers are provided, wherein the four auxiliary barriers are disposed around four top corners of the display area respectively.

6. The display panel according to claim 1 , wherein the height of the auxiliary barrier ranges from 8 to 15 μm, and a width of the auxiliary barrier in a direction parallel to the substrate ranges from 30 to 50 μm.

7. The display panel according to claim 1 , wherein the height of the first barrier body and the height of the second barrier body are both less than the height of the auxiliary barrier.

8. The display panel according to claim 1 , wherein a minimum distance between the auxiliary barrier and the second barrier body ranges from 200 to 500 μm.

9. The display panel according to claim 1 , wherein a material of the auxiliary barrier and a material of the barrier body both comprise: polyimide.

10. The display panel according to claim 9 , further comprising: a pixel defining layer disposed on the substrate, wherein the pixel defining layer is configured to define a pixel area in the display panel, the light-emitting device is disposed in the pixel area, and the encapsulation layer is disposed on a side of the pixel defining layer away from the substrate.

11. A display apparatus, comprising: a power supply assembly and a display panel, wherein the power supply assembly is configured to supply power to the display panel; and the display panel comprises:

a substrate, comprising a display area and a non-display area surrounding the display area;

a light-emitting device and an encapsulation layer which are disposed on the substrate, the light-emitting device being disposed in the display area; and

an auxiliary barrier disposed on the substrate, the auxiliary barrier being disposed in the non-display area;

wherein a height of the auxiliary barrier is greater than a distance between a side of the encapsulation layer away from the substrate and the substrate,

wherein the encapsulation layer comprises: a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are laminated,

the display panel further comprising: a barrier body disposed in the non-display area, wherein the barrier body is closer to the display area than the auxiliary barrier is, the first inorganic encapsulation layer and the second inorganic encapsulation layer cover the barrier body, and an orthographic projection of the organic encapsulation layer on the substrate and an orthographic projection of the barrier body on the substrate are not overlapped, wherein the barrier body is annular, and the barrier body is disposed around the display area, wherein two barrier bodies are provided, and the two barrier bodies are a first barrier body and a second barrier body respectively, wherein the first barrier body is closer to the display area than the second barrier body is, and a height of the second barrier body is greater than a height of the first barrier body.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2022
From: CHEN, TAO; HO, HSINJU; HAI, HONGLEI; ZHANG, FENGGANG
To: MIANYANG BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 059056/0721 →
Priority Claims (1)
CN 202110343108.0 · Mar 30, 2021 · national
Continuity (1)
Related Publication 20220320466A1 · Oct 6, 2022
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