IP Library Granted Patent US 11,635,833
Granted Patent B2
US 11,635,833 · App. 17/147,339 · Granted Apr 25, 2023

Flexible display apparatus

Inventor: Jonggil Ryu (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
G06F3/0412G06F1/1626G06F1/1637G06F1/1643G06F1/1652G06F3/041G09F9/301H01L51/0097H01L51/5253H01L51/56G06F2203/04102G06F2203/04103H01L2251/5338Y02E10/549
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Quick Facts
Patent No.
US 11,635,833
App. No.
17/147,339
Granted
Apr 25, 2023
Kind
B2
Abstract

A flexible display apparatus includes: a flexible panel having a first area, a bending area extending from the first area, and a second area extending from the bending area; a plurality of separate protection films on a surface of the flexible panel; and a filler in a gap between the plurality of separate protection films.

Claims (38)

1. A flexible display apparatus comprising:

a flexible panel having: a first area comprising a display area for displaying an image; a bending area bending and extending from the first area; and a second area extending from the bending area, each of the bending area and the second area being a non-display area, wherein the flexible panel has a first surface and a second surface opposite to the first surface, and a first portion of the second surface and a second portion of the second surface face each other with the bending area bent;

a first protection film disposed on the second surface of the flexible panel, the first protection film overlapping the first area;

a second protection film disposed on the second surface of the flexible panel, the second protection film overlapping second area; and

a filler on the second surface of the flexible panel, the filler being surrounded by the first protection film, the second protection film, and the second surface of the flexible panel,

wherein the filler directly contacts the first protection film, the second protection film, and the second surface of the flexible panel,

wherein the first protection film has a first surface directly on the second surface of the flexible panel and a second surface opposite the first surface,

wherein the second protection film has a first surface directly on the second surface of the flexible panel and a second surface opposite the first surface, and

wherein the second surface of the first protection film directly contacts the second surface of the second protection film.

2. The flexible display apparatus of claim 1 ,

wherein the filler fills a space defined by a distal end side surface of the first protection film, a distal end side surface of the second protection film, and the second surface of the flexible panel.

3. The flexible display apparatus of claim 2 , wherein the distal end side surface of the first protection film, the distal end side surface of the second protection film, and the second surface of the flexible panel provide a closed surface.

4. The flexible display apparatus of claim 2 , wherein the distal end side surface of the first protection film and the distal end side surface of the second protection film directly contact each other.

5. The flexible display apparatus of claim 4 , wherein the distal end side surface of the first protection film and the distal end side surface of the second protection film face in a same direction.

6. The flexible display apparatus of claim 1 , wherein the first portion of the second surface overlaps the first area and the second portion of the second surface overlaps the second area.

7. The flexible display apparatus of claim 6 , further comprising:

a function film on the first surface of the flexible panel, the function film overlapping the first area,

wherein the function film comprises at least one of a touch panel, a polarization film, and a cover window.

8. The flexible display apparatus of claim 1 , further comprising a driver,

wherein the second area has a pad area,

the driver is connected to the pad area, and

the driver faces the first portion of the second surface overlapping the first area of the flexible panel.

9. The flexible display apparatus of claim 1 , wherein the filler comprises a resin.

10. A method of manufacturing a flexible display apparatus comprising: a flexible panel having a first area comprising a display area for displaying an image, a bending area extending from the first area, and a second area extending from the bending area, each of the bending area and the second area being a non-display area, wherein the flexible panel has a first surface and a second surface opposite to the first surface; a first protection film disposed on the second surface of the flexible panel; and a second protection film disposed on the second surface of the flexible panel, the method comprising:

applying a raw filler material on the second surface of the flexible panel between the first protection film and the second protection film;

bending the bending area of the flexible panel such that a first portion of the second surface and a second portion of a second surface face each other, the first protection film overlaps the first area, the second protection film overlaps the second area, and outer surfaces of the first protection film and the second protection film directly contact each other; and

forming a filler by irradiating ultraviolet light from an ultraviolet lamp onto the raw filler material,

wherein the filler is formed to be surrounded by the first protection film, the second protection film, and the second surface of the flexible panel, and to directly contact the first protection film, the second protection film, and the second surface of the flexible panel.

11. The method of claim 10 , wherein the raw filler material is applied between the first protection film and the second protection film before the bending area of the flexible panel is bent.

12. The method of claim 10 , wherein the ultraviolet light is irradiated after the bending area of the flexible panel is bent.

13. The method of claim 10 , further comprising forming a function film on the first surface of the flexible panel such that the function film overlaps the first area.

14. The method of claim 10 , wherein the filler is fixed along a curved surface of the bending area.

15. The method of claim 10 , further comprising removing a portion of the filler formed an undesired area after the forming of the filler.

16. The method of claim 10 , wherein the filler is formed to fill a space defined by a distal end side surface of the first protection film, a distal end side surface of the second protection film, and the second surface of the flexible panel.

17. The flexible display apparatus of claim 1 , wherein the flexible panel comprises: a flexible substrate; a thin film encapsulation layer arranged over the flexible substrate; and a light-emitting device between the flexible substrate and the thin film encapsulation layer, and

wherein the light-emitting device is arranged only in the first area, and the flexible substrate and the thin film encapsulation layer extends to the bending area and the second area.

18. The flexible display apparatus of claim 17 , wherein the light-emitting device comprises an organic light-emitting diode, the organic light-emitting diode comprising a first electrode, a second electrode, and an organic emission layer between the first electrode and the second electrode.

19. The flexible display apparatus of claim 17 , wherein the thin film encapsulation layer comprises an inorganic layer and an organic layer that are alternately stacked.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Oct 31, 2024
From: MLC50 LP INC.
To: SAFEGUARD BIOSYSTEMS HOLDINGS LIMITED
Reel/Frame 069084/0649 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2021
From: RYU, JONGGIL
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 057522/0969 →
Priority Claims (1)
KR 10-2016-0085598 · Jul 6, 2016 · national
Continuity (2)
Continuation 15632693 · Jun 26, 2017
Related Publication 20210132726A1 · May 6, 2021