IP Library Granted Patent US 11,515,503
Granted Patent B2
US 11,515,503 · App. 17/110,831 · Granted Nov 29, 2022

Flexible display device

Inventors: Myeongah Shin (Seoul, KR); Jin Woo Kim (Seoul, KR)
Assignee: LG DISPLAY CO., LTD.
H01L51/5237H01L27/3276H01L51/529H01L51/0097H01L2251/5338
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,515,503
App. No.
17/110,831
Granted
Nov 29, 2022
Kind
B2
Abstract

According to an aspect of the present disclosure, a flexible display device includes: a display panel which includes a display area and a bending area extending from one side of the display area to be bent; a first back plate disposed on a rear surface of the display area; a first cushion tape disposed on a rear surface of the first back plate; a heat radiation sheet disposed on a rear surface of the first cushion tape; a second cushion tape which is disposed below the heat radiation sheet and absorbs a damage from the outside; and a bottom hole which passes through the first cushion tape, the heat radiation sheet, and the second cushion tape.

Claims (34)

1. A flexible display device, comprising:

a display panel which includes a display area and a bending area extending from one side of the display area to be bent;

a first back plate disposed on a rear surface of the display area;

a first cushion tape disposed on a rear surface of the first back plate;

a heat radiation sheet disposed on a rear surface of the first cushion tape;

a second cushion tape which is disposed below the heat radiation sheet and absorbs a damage from the outside; and

a bottom hole which passes through the first cushion tape, the heat radiation sheet, and the second cushion tape.

2. The flexible display device according to claim 1 , further comprising:

a circuit element which is connected to an end of the display panel and is disposed on the rear surface of the first cushion tape.

3. The flexible display device according to claim 2 , wherein the bottom hole passes through the circuit element.

4. The flexible display device according to claim 2 , wherein the bottom hole is formed to be spaced apart from the circuit element.

5. The flexible display device according to claim 2 , wherein the second cushion tape completely overlaps the circuit element.

6. The flexible display device according to claim 2 , further comprising:

an insulating tape which is in contact with a rear surface of the circuit element.

7. The flexible display device according to claim 2 , further comprising:

an insulating tape which is in contact with a rear surface of the second cushion tape.

8. The flexible display device according to claim 1 , wherein the second cushion tape is in contact with an inner surface of the first cushion tape and an inner surface of the heat radiation sheet.

9. The flexible display device according to claim 1 , wherein the second cushion tape is configured by acrylic foam.

10. A flexible display device, comprising:

a display panel which includes a first flat portion, a second flat portion, and a curved portion located between the first flat portion and the second flat portion;

a first back plate disposed on a rear surface of the first flat portion of the display panel;

a second back plate disposed on a rear surface of the second flat portion of the display panel;

a first cushion tape and a heat radiation sheet disposed between the first back plate and the second back plate;

a bottom hole which passes through the first cushion tape and the heat radiation sheet; and

a second cushion tape which encloses an entrance of the bottom hole and absorbs a damage from the outside.

11. The flexible display device according to claim 10 , further comprising:

a circuit element which is connected to one end of the second flat portion and a rear surface of the heat radiation sheet.

12. The flexible display device according to claim 11 , wherein the bottom hole passes through the circuit element.

13. The flexible display device according to claim 11 , wherein the bottom hole is formed inside more than the circuit element so that the bottom hole does not pass through the circuit element.

14. The flexible display device according to claim 11 , wherein an end of the second cushion tape is disposed inside more than an end of the circuit element.

15. The flexible display device according to claim 11 , further comprising:

an insulating tape which covers the circuit element.

16. The flexible display device according to claim 10 , wherein the second cushion tape extends to an inner surface of the first cushion tape and an inner surface of the heat radiation sheet.

17. The flexible display device according to claim 10 , wherein the second cushion tape is configured by acrylic foam.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2020
From: SHIN, MYEONGAH; KIM, JIN WOO
To: LG DISPLAY CO., LTD.
Reel/Frame 054535/0795 →
Priority Claims (1)
KR 10-2019-0159562 · Dec 4, 2019 · national
Continuity (1)
Related Publication 20210175462A1 · Jun 10, 2021
Cited By (3)
US 12,376,483 US 12,390,176 US 12,632,081