IP Library › Granted Patent US 10,950,809
Granted Patent B2
US 10,950,809 · App. 16/472,898 · Granted Mar 16, 2021

Flexible display panel having a photoresist supporting element

Inventors: Cheng Yang (Wuhan, CN); Wei Wang (Wuhan, CN)
Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
H01L51/0097H01L27/3246H01L27/3248H01L27/3258H01L51/0021H01L51/56H01L27/1218H01L27/1248H01L27/1262H01L27/3283H01L51/5206H01L2227/323H01L2251/5338
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Quick Facts
Patent No.
US 10,950,809
App. No.
16/472,898
Granted
Mar 16, 2021
Kind
B2
Abstract

The present invention provides a flexible display panel and a manufacturing method thereof. The flexible display panel includes a flexible substrate, a thin film transistor, a planarization layer having a non-through groove, an anode layer, a pixel defining layer having a through groove, and a photoresist supporting element. The present invention utilizes a patterning structure of the pixel defining layer and the planarization layer to reduce internal stress of the flexible substrate, so as to improve dynamic bending performance of the flexible substrate.

Claims (27)

1. A flexible display panel; comprising:

a flexible substrate;

a thin film transistor disposed on the flexible substrate;

a planarization layer disposed on the thin film transistor, wherein the planarization layer comprises a non-through groove;

an anode layer disposed on the planarization layer;

a pixel defining layer disposed on the planarization layer, wherein the pixel defining layer comprises a through groove, the pixel defining layer defining a pixel area and a non-pixel area disposed adjacent to the pixel area; and

a photoresist supporting element disposed on the pixel defining layer;

wherein the non-through groove of the planarization layer is disposed corresponding to the through groove of the pixel defining layer.

2. The flexible display panel of claim 1 , wherein the through groove of the pixel defining layer is disposed in the non-pixel area.

3. The flexible display panel of claim 1 , wherein a bottom of the non-through groove of the planarization layer is flat.

4. The flexible display panel of claim 3 , wherein the non-through groove of the planarization layer is defined by a translucent mask.

5. The flexible display panel of claim 1 , wherein the non-through groove of the planarization layer is a non-through hole.

6. The flexible display panel of claim 1 , wherein the through groove of the pixel defining layer is a through hole.

7. A flexible display panel; comprising:

a flexible substrate;

a thin film transistor disposed on the flexible substrate;

a planarization layer disposed on the thin film transistor and comprising a non-through groove;

an anode layer disposed on the planarization layer;

a pixel defining layer disposed on the planarization layer, wherein the pixel defining layer comprises a through groove; and

a photoresist supporting element disposed on the pixel defining layer.

8. The flexible display panel of claim 7 , wherein the pixel defining layer defines a pixel area and a non-pixel area disposed adjacent to the pixel area.

9. The flexible display panel of claim 8 , wherein the through groove of the pixel defining layer is disposed in the non-pixel area.

10. The flexible display panel of claim 7 , wherein the non-through groove of the planarization layer is disposed corresponding to the through groove of the pixel defining layer.

11. The flexible display panel of claim 10 , wherein a bottom of the non-through groove of the planarization layer is flat.

12. The flexible display panel of claim 11 , wherein the non-through groove of the planarization layer is defined by a translucent mask.

13. The flexible display panel of claim 7 , wherein the non-through groove of the planarization layer is a non-through hole.

14. The flexible display panel of claim 7 , wherein the through groove of the pixel defining layer is a through hole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 24, 2019
From: YANG, CHENG; WANG, WEI
To: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Reel/Frame 050158/0978 →
Priority Claims (1)
CN 201811573985.1 · Dec 21, 2018 · national
Continuity (1)
Related Publication 20200203640A1 · Jun 25, 2020