Manufacturing method and manufacturing device of flexible display panel

Patent metadata

Field	Value
Publication number	US-11331899-B2
Application number	US-201916632734-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Jul 23, 2018
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A manufacturing method and a manufacturing device of a flexible panel are provided. the flexible panel includes a bending area, and the manufacturing method includes: providing a panel unit including a flexible substrate and a back film which are laminated, the panel unit including a panel area corresponding to the flexible panel and a non-panel area outside the panel area; and removing the non-panel area of the panel unit while peeling off a peelable portion of the back film in the bending area of the flexible panel.

First claim

What is claimed is:

1. A manufacturing method of a flexible panel, the flexible panel comprising a bending area, the manufacturing method comprising:
providing a panel unit, wherein the panel unit comprises a flexible substrate and a back film which are laminated, and the panel unit comprises a panel area comprising the flexible panel and a non-panel area outside the panel area; and
removing the non-panel area from the panel area of the panel unit while peeling off a peelable portion of the back film in the bending area of the flexible panel and keeping a remaining portion of the back film in the panel area.

2. The manufacturing method according to claim 1 , wherein the removing the non-panel area from the panel area of the panel unit while peeling off the peelable portion of the back film in the bending area of the flexible panel and keeping the remaining portion of the back film in the panel area comprises:
cutting the flexible substrate, to divide the flexible substrate into a first substrate portion in the non-panel area and a second substrate portion in the panel area; and
cutting the back film, to divide the back film into a first back film portion and a second back film portion, the first back film portion comprising a first sub-portion and a second sub-portion which are connected with each other, wherein the second back film portion is configured as the remaining portion of the back film in the panel area, the first sub-portion is in the non-panel area, and the second sub-portion is configured as the peelable portion of the back film in the bending area.

3. The manufacturing method according to claim 2 , wherein the flexible substrate comprises a first surface and a second surface which are opposite to each other, and the back film is on the first surface of the flexible substrate;
the cutting the back film, to divide the back film into the first back film portion and the second back film portion, comprises:
placing the panel unit on a first processing table with the second surface of the flexible substrate facing away from the first processing table, and
performing a first cutting process on the flexible substrate to divide the flexible substrate into the first substrate portion and the second substrate portion.

4. The manufacturing method according to claim 3 , wherein the cutting the back film into the first back film portion and the second back film portion comprises:
turning over and placing the panel unit on a second processing table with the first surface of the flexible substrate facing away from the second processing table, and
performing a second cutting process on the back film to divide the back film into the first back film portion and second back film portion.

5. The manufacturing method according to claim 4 , wherein the removing the non-panel area of the panel unit while peeling off the peelable portion of the back film in the bending area of the flexible panel further comprises:
removing the non-panel area of the panel unit with the first surface of the flexible substrate facing away from the second processing table, after the cutting the back film into the first back film portion and second back film portion.

6. The manufacturing method according to claim 5 , wherein the removing the non-panel area of the panel unit comprises:
separating the first substrate portion from the second processing table, and
peeling off the second sub-portion of the back film from the flexible substrate with the first substrate portion as a point of action.

7. The manufacturing method according to claim 6 , wherein the separating the first substrate portion from the second processing table comprises:
picking up the first substrate portion from the second processing table to separate the first substrate portion from the second processing table.

8. The manufacturing method according to claim 7 , wherein the picking up the first substrate portion from the second processing table comprises:
inserting a blade between the first substrate portion and the second processing table, and lifting the first substrate portion.

9. The manufacturing method according to claim 8 , wherein the separating the first substrate portion from the second processing table further comprises:
clamping the first substrate portion by a clamp and driving the first substrate portion to peel off the second sub-portion of the back film.

10. The manufacturing method according to claim 7 , wherein the picking up the first substrate portion from the second processing table comprises:
enabling a supporting rod provided in the second processing table to protrude from the second processing table, so as to lift the first substrate portion.

11. The manufacturing method according to claim 10 , wherein the separating the first substrate portion from the second processing table further comprises:
clamping the first substrate portion by a clamp and driving the first substrate portion to peel off the second sub-portion of the back film.

12. The manufacturing method according to claim 7 , wherein the separating the first substrate portion from the second processing table further comprises:
clamping the first substrate portion by a clamp and driving the first substrate portion to peel off the second sub-portion of the back film.

13. The manufacturing method according to claim 3 , wherein the cutting the back film into the first back film portion and second back film portion comprises:
cutting the back film along a cutting path of the first cutting process except for a periphery of the second sub-portion while performing the first cutting process on the flexible substrate.

14. The manufacturing method according to claim 13 , wherein the cutting the back film into the first back film portion and the second back film portion further comprises:
turning over and placing the panel unit at the second processing table with the first surface of the flexible substrate facing away from the second processing table, and
performing the second cutting process on the back film along the periphery of the second sub-portion to divide the back film into the first back film portion and the second back film portion.

15. The manufacturing method according to claim 14 , wherein the removing the non-panel area of the panel unit while peeling off the peelable portion of the back film in the bending area of the flexible panel further comprises:
after the cutting the back film into the first back film portion and second back film portion, removing the non-panel area of the panel unit with the first surface of the flexible substrate facing away from the second processing table.

16. The manufacturing method according to claim 3 , wherein
the panel unit is fixed to the first processing table through vacuum absorption.

17. The manufacturing method according to claim 1 , wherein the removing the non-panel area from the panel area of the panel unit comprises cutting by a cutting wheel or a cutting laser.

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Wang Wei
• Zhan Zhifeng
• Wang Yanxin
• Yang Shuquan
• Shi Jiafan

Classifications

• B32B43/006 Primary

  Delaminating · CPC title

• B32B43/003 Primary

  Cutting · CPC title

• Y10T156/1978

  Delaminating bending means · CPC title

• Y10T156/1168

  Gripping and pulling work apart during delaminating · CPC title

• B32B38/10

  Removing layers, or parts of layers, mechanically or chemically · CPC title