Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10903457-B2
Application number	US-201916528187-A
Country	US
Kind code	B2
Filing date	Jul 31, 2019
Priority date	Aug 13, 2018
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A display device and a method of manufacturing the same are provided. A display device includes: a display panel including a first area, a second area, and a bending area between the first area and the second area; a first polarizing film on a first surface of the first area of the display panel; and a second polarizing film on a first surface of the second area of the display panel, and the first and second polarizing films are spaced apart from each other with the bending area therebetween.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a first area, a second area, and a bending area between the first area and the second area;
a first polarizing film on a first surface of the first area of the display panel; and
a second polarizing film on a first surface of the second area of the display panel,
wherein the first and second polarizing films are spaced apart from each other with the bending area therebetween,
the first and second areas of the display panel overlap with each other in a thickness direction, and
the first surfaces of the first and second areas of the display panel face away from each other.

2. The display device of claim 1 , wherein
second surfaces of the first and second areas of the display panel are opposite to each other.

3. The display device of claim 2 , wherein the second polarizing film overlaps with the first polarizing film in the thickness direction.

4. The display device of claim 2 , wherein the first and second polarizing films comprise a same material.

5. The display device of claim 4 , wherein a thickness of the first polarizing film is the same as a thickness of the second polarizing film.

6. The display device of claim 2 , further comprising an adhesive member between the second surfaces of the first and second areas of the display panel and bonding the second surfaces of the first and second areas of the display panel.

7. The display device of claim 6 , further comprising:
a gap between a first side of the adhesive member and a second surface of the bending area of the display panel; and
a spacer in the gap,
wherein the spacer is in contact with the first side of the adhesive member and the second surface of the bending area of the display panel.

8. The display device of claim 2 , wherein
a direction in which a first side of the first polarizing film extends is the same as a direction in which a first side of the second polarizing film extends, and
the first sides of the first and second polarizing films face each other.

9. The display device of claim 8 , wherein a distance between the first sides of the first and second polarizing films is uniform along the direction in which the first side of the first polarizing film extends.

10. The display device of claim 2 , wherein the first and second polarizing films comprise burr-shaped portions near the bending area.

11. The display device of claim 2 , wherein the display panel comprises recessed scratches near the bending area in the thickness direction.

12. The display device of claim 2 , wherein the display panel comprises soot on the first surface of the bending area of the display panel.

13. A display device comprising:
a display panel comprising a first area, a second area, and a bending area between the first area and the second area;
a first polarizing film on a first surface of the first area of the display panel;
a second polarizing film on a first surface of the second area of the display panel; and
a passivation film on a first surface of the bending area of the display panel,
wherein the first and second polarizing films are spaced apart from each other with the bending area therebetween,
the first and second areas of the display panel overlap with each other in a thickness direction, and
second surfaces of the first and second areas of the display panel are opposite to each other.

14. The display device of claim 13 , wherein
a first side of the passivation film faces a first side of the first polarizing film, and
a second side of the passivation film faces a first side of the second polarizing film.

15. The display device of claim 13 , wherein the passivation film covers a part of a top surface of the first polarizing film or a part of a top surface of the second polarizing film.

16. A display device comprising:
a display panel comprising a first area, a second area, and a bending area between the first area and the second area;
a first polarizing film on a first surface of the first area of the display panel;
a second polarizing film on a first surface of the second area of the display panel; and
a driver chip on the first surface of the second area of the display panel,
wherein the second polarizing film is between the bending area and the driver chip,
the first and second polarizing films are spaced apart from each other with the bending area therebetween,
the first and second areas of the display panel overlap with each other in a thickness direction, and
second surfaces of the first and second areas of the display panel are opposite to each other.

17. The display device of claim 16 , wherein the second polarizing film covers a first side and a top surface of the driver chip.

18. The display device of claim 16 , wherein
the second area of the display panel comprises a sub-area adjacent to the bending area and a driver chip area adjacent to an end of the second area, and
the second polarizing film is located in the sub-area and the driver chip area and in a part of the driver chip area between a second surface of the display panel and the driver chip.

19. A method of manufacturing a display device, the method comprising:
arranging a polarizing film on a first surface of a display panel comprising a first area, a second area, and a bending area between the first area and the second area; and
separating the polarizing film into a first polarizing film, which is on the first area of the display panel, and a second polarizing film, which is on the second area of the display panel, by removing the polarizing film from the bending area of the display panel and from an area on a side of the second area of the display panel,
wherein the first and second areas of the display panel overlap with each other in a thickness direction, and
the first surface of the display panel in the first area faces away from the first surface of the display panel in the second area.

20. The method of claim 19 , further comprising arranging a passivation film on the bending area of the display panel, and arranging a driver chip in an area where the second area of the display panel is exposed.

21. A display device comprising:
a display panel comprising a first area, a second area, and a bending area between the first area and the second area;
a first polarizing film on a first surface of the first area of the display panel; and
a passivation film on each of a first surface of the bending area and a first surface of the second area of the display panel,
wherein the first and second areas of the display panel overlap with each other in a thickness direction, and
the first surfaces of the first and second areas of the display panel face away from each other.

Assignees

• Samsung Display Co Ltd

Inventors

• Cho Ki Hyun
• Lee Yong Hui
• Kim Jung Hwa
• Kim Ji Hoon
• An Byung Seon

Classifications

• H10K50/865

  comprising light absorbing layers, e.g. light-blocking layers · CPC title

• H10K59/8791 Primary

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• G09F9/33

  being semiconductor devices, e.g. diodes · CPC title