IP Library Granted Patent US 11,233,221
Granted Patent B2
US 11,233,221 · App. 16/499,284 · Granted Jan 25, 2022

Manufacturing method of a rigid organic light-emitting diode (OLED) display panel and a display panel

Inventor: Chaoliang Wang (Wuhan, CN)
Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
H01L51/5253H01L51/56H05K1/189H05K2201/10128
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Quick Facts
Patent No.
US 11,233,221
App. No.
16/499,284
Granted
Jan 25, 2022
Kind
B2
Abstract

Disclosed is a manufacturing method of a rigid organic light-emitting diode (OLED) display panel and a display panel. The method comprises steps of providing a first substrate having a first glass substrate and a flexible film; coating an organic compound on the first glass substrate; providing a second substrate; packaging the display area; and cutting and stripping a part of the first glass substrate at the non-display area of the packaged display panel, thereby improving the screen accounting of the display area in the rigid OLED display panel.

Claims (36)

1. A manufacturing method of a rigid organic light-emitting diode (OLED) display panel, comprising steps of:

providing a first substrate, wherein the first substrate includes a first glass substrate and a flexible film; the flexible film covers the first glass substrate, and the flexible film includes a first area and a second area; the first area corresponds to a display area of the display panel, and the second area corresponds to a non-display area of the display panel;

coating an organic compound on the first glass substrate;

providing a second substrate, wherein the second substrate is disposed relative to the first substrate;

providing a package material between the first substrate and the second substrate, and oppositely bonding the first substrate with the second substrate to package the display area;

cutting and stripping a part of the first glass substrate at the non-display area of the packaged display panel; and

coating the first glass substrate, including: coating an organic compound on a groove disposed inside the first glass substrate;

wherein the manufacturing method further comprises a step of: providing a package material between the first substrate and the second substrate, and oppositely bonding the first substrate with the second substrate to package the display area, and bonding a flexible printed circuit board with the packaged first glass substrate at the non-display area.

2. A manufacturing method of a rigid organic light-emitting diode (OLED), comprising steps of:

providing a first substrate, wherein the first substrate includes a first glass substrate and a flexible film; the flexible film covers the first glass substrate, and the flexible film includes a first area and a second area; the first area corresponds to a display area of the display panel, and the second area corresponds to a non-display area of the display panel;

coating an organic compound on the first glass substrate;

providing a second substrate, wherein the second substrate is disposed relative to the first substrate;

providing a package material between the first substrate and the second substrate, and oppositely bonding the first substrate with the second substrate to package the display area; and

cutting and stripping a part of the first glass substrate at the non-display area of the packaged display panel.

3. The manufacturing method according to claim 2 , further comprising a step of coating the first glass substrate, including: coating an organic compound on a groove disposed inside the first glass substrate.

4. The manufacturing method according to claim 3 , wherein the step of coating the organic compound on the groove disposed inside the first glass substrate is coating a polyimide on the first glass substrate.

5. The manufacturing method according to claim 3 , wherein a depth of the groove is 10-30 μm.

6. The manufacturing method according to claim 3 , wherein an upper surface of the groove coated with the organic compound is at an identical horizontal level with an upper surface of the first glass substrate.

7. The manufacturing method according to claim 2 , further comprising a step of:

providing a package material between the first substrate and the second substrate, and oppositely bonding the first substrate with the second substrate to package the display area, and bonding a flexible printed circuit board with the packaged first glass substrate at the non-display area.

8. The manufacturing method according to claim 7 , wherein the flexible printed circuit board includes a first circuit and a second circuit.

9. The manufacturing method according to claim 7 , further comprising a step of: bending the flexible printed circuit board and the flexible film to bonding the flexible printed circuit board and the flexible film with a side of the first substrate and the display panel.

10. The manufacturing method according to claim 2 , wherein the step of cutting and stripping the part of the first glass substrate at the non-display area of the packaged display panel includes a step of using a laser strip to strip the part of the first glass substrate at the non-display area of the packaged display pane.

11. The manufacturing method according to claim 2 , further comprising a step of: fixing and protecting the bent flexible printed circuit board and the bent flexible film.

12. A display panel, comprising:

a first substrate including a first glass substrate and a flexible film, wherein the flexible film is located above the first glass substrate and includes a first area and a second area; the first area corresponds to a display area of the display panel, and the second area attaches to a side of the display panel; the first glass substrate is provided with a groove configured to conduct a coating of an organic compound;

a second substrate disposed relative to the first substrate; and

a package material between the first substrate and the second substrate, and the package material is configured to package the display area.

13. The display panel according to claim 12 , wherein a surface of the groove with the coating of the organic compound is at an identical horizontal level with an upper surface of the first glass substrate.

14. The display panel according to claim 13 , wherein the groove is configured to conduct a polyimide coating.

15. The display panel according to claim 12 , further comprising a flexible printed circuit board at the non-display area, wherein the flexible printed circuit board is attached to the non-display area of the display panel.

16. The display panel according to claim 15 , wherein the flexible printed circuit board includes a first circuit and a second circuit.

17. The display panel according to claim 15 , wherein the flexible printed circuit board and the flexible film are configured to be bent to be attached to a side of the first substrate and the display panel.

18. The display panel according to claim 12 , wherein a part of the first glass substrate at the non-display area is configured to be cut and stripped.

19. The display panel according to claim 18 , wherein the part of the first glass substrate at the non-display area is configured to be cut and stripped by using a laser strip.

20. The display panel according to claim 12 , further comprising a protecting layer configured to protect the bent flexible film and the bent flexible printed circuit board.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2020
From: WANG, CHAOLIANG
To: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Reel/Frame 051944/0733 →
Priority Claims (1)
CN 201910207714.2 · Mar 19, 2019 · national
Continuity (1)
Related Publication 20210408452A1 · Dec 30, 2021
Cited By (1)
US 12,342,713