Flexible display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11815960-B2
Application number	US-202217963106-A
Country	US
Kind code	B2
Filing date	Oct 10, 2022
Priority date	Dec 28, 2011
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A flexible display apparatus including: a first film including a first surface and a second surface that are opposite each other, and a first groove formed in the first surface, the first film having a first rigidity; a third film on the second surface of the first film; a fourth film facing the third film; an emission display unit between and encapsulated by the third film and the fourth film; and a second film on the fourth film and facing the first film, the second film having a second rigidity that is less than the first rigidity.

First claim

What is claimed is:

1. A flexible display apparatus comprising:
a first film including a first region, a second region, and a first opening or groove defined between the first region and the second region;
a third film over the first film, the third film including a bending portion overlapping the first opening or groove of the first film;
a fourth film over the third film, the fourth film including a bending portion overlapping the first opening or groove of the first film;
an emission display unit between the third film and the fourth film;
an elastic member disposed in the first opening or groove; and
an adhesion layer between the third film and the elastic member,
wherein a thickness of the first film corresponding to the bending portions of the third and fourth films is smaller than a thickness of the first film in the first and second regions.

2. The flexible display apparatus of claim 1 , wherein a width of the first opening or groove of the first film is at least two times greater than a thickness of the first film.

3. The flexible display apparatus of claim 1 , wherein the third film comprises a plastic material.

4. The flexible display apparatus of claim 1 , wherein the fourth film is configured to encapsulate the emission display unit.

5. The flexible display apparatus of claim 1 , wherein the fourth film comprises a multi-layer.

6. The flexible display apparatus of claim 5 , wherein the multi-layer comprises at least one inorganic film.

7. The flexible display apparatus of claim 5 , wherein the multi-layer comprises at least one organic film.

8. The flexible display apparatus of claim 1 , further comprising a second film disposed on the fourth film.

9. The flexible display apparatus of claim 8 , wherein the second film comprises a polarizing film.

10. The flexible display apparatus of claim 9 , wherein the first film has a first rigidity and the second film has a second rigidity that is less than the first rigidity.

11. A flexible display apparatus comprising:
a first film including a first region, a second region, and a bending portion between the first region and the second region, a plurality of first openings or grooves being defined in the bending portion of the first film;
a third film over the first film, the third film including a bending portion overlapping the bending portion of the first film;
a fourth film over the third film, the fourth film including a bending portion overlapping the bending portion of the first film;
an emission display unit between the third film and the fourth film;
an elastic member disposed in the plurality of first openings or grooves; and
an adhesion layer between the third film and the elastic member.

12. The flexible display apparatus of claim 11 , wherein a total width of the plurality of openings or grooves defined in the bending portion of the first film is at least two times greater than a thickness of the first film.

13. The flexible display apparatus of claim 11 , wherein the third film comprises a plastic material.

14. The flexible display apparatus of claim 11 , wherein the fourth film is configured to encapsulate the emission display unit.

15. The flexible display apparatus of claim 11 , wherein the fourth film comprises a multi-layer.

16. The flexible display apparatus of claim 15 , wherein the multi-layer comprises at least one inorganic film.

17. The flexible display apparatus of claim 15 , wherein the multi-layer comprises at least one organic film.

18. The flexible display apparatus of claim 11 , further comprising a second film disposed on the fourth film.

19. The flexible display apparatus of claim 18 , wherein the second film comprises a polarizing film.

20. The flexible display apparatus of claim 18 , wherein the first film has a first rigidity and the second film has a second rigidity that is less than the first rigidity.

Assignees

• Samsung Display Co Ltd

Inventors

• Prushinskiy Valeriy
• Hyun Won-Sik
• Na Hyong-Yeol
• Kim Min-Soo
• Kim Mu-Gyeom

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K77/111

  Flexible substrates · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K50/8428

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title