IP Library › Granted Patent US 10,411,219
Granted Patent B2
US 10,411,219 · App. 16/160,803 · Granted Sep 10, 2019

Display device and method of manufacturing the same

Inventors: Taehyun Sung (Seoul, KR); Kwan-su Kim (Cheonan-si, KR); Junghoon Han (Uiwang-si, KR); Kyoungil Min (Hwaseong-si, KR); Hyungu Lee (Asan-si, KR); Junshik Park (Incheon, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/5253H01L27/3244H01L27/3246H01L27/3258H01L51/0097H01L51/56H01L2251/5338Y02E10/549Y02P70/521
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Quick Facts
Patent No.
US 10,411,219
App. No.
16/160,803
Granted
Sep 10, 2019
Kind
B2
Abstract

A display device and a method of manufacturing a display device are provided. A manufacturing method of a display apparatus includes forming a display module including a first area and including a display panel including lower and upper surfaces opposite each other, a first film under the lower surface of the display panel, a second film on the upper surface of the display panel, and an adhesive layer between the lower surface of the display panel and the first film; weakening an adhesive force of a first adhesive portion of the adhesive layer in the first area to be weaker than an adhesive force of a second adhesive portion of the adhesive layer outside the first area; cutting the first film and the adhesive layer; and removing a portion of the first film and the first adhesive portion from the first area.

Claims (22)

1. A display device comprising:

a display panel comprising a first area defined therein and comprising a lower surface and an upper surface opposite the lower surface;

a first film under the lower surface of the display panel and comprising a film groove defined therein to overlap with the first area;

a second film on the upper surface of the display panel; and

an adhesive layer between the lower surface of the display panel and the first film and comprising an adhesive groove defined therein to overlap with the first area, wherein a surface roughness of a first portion of the lower surface of the display panel in the first area is different from a surface roughness of a second portion of the lower surface of the display panel outside the first area.

2. The display device of claim 1 , wherein the surface roughness of the first portion of the lower surface of the display panel is greater than the surface roughness of the second portion of the lower surface of the display panel.

3. The display device of claim 1 , wherein the first portion of the lower surface of the display panel is exposed by the film groove and the adhesive groove.

4. The display device of claim 1 , wherein an angle between the second portion of the lower surface of the display panel and each of an inner surface of the first film defining the film groove and an inner surface of the adhesive layer defining the adhesive groove is an acute angle.

5. The display device of claim 1 , wherein the display panel comprises:

a base substrate defining the lower surface and comprising polyimide;

a driving layer on the base substrate;

an organic light emitting diode on the driving layer; and

a sealing layer covering the organic light emitting diode.

6. The display device of claim 5 , wherein a first base substrate portion of the base substrate in the first area has a first thickness, and a second base substrate portion of the base substrate outside the first area has a second thickness greater than the first thickness.

7. The display device of claim 1 , wherein the adhesive layer covers the first portion of the lower surface of the display panel, a first adhesive layer portion of the adhesive layer in the first area has a third thickness, and a second adhesive layer portion of the adhesive layer outside the first area has a fourth thickness greater than the third thickness.

8. The display device of claim 1 , further comprising carbides contacting the first portion of the lower surface of the display panel.

9. The display device of claim 1 , further comprising a burr on a lower surface of the first film adjacent to the film groove.

10. The display device of claim 1 , wherein the display panel comprises a display area to display an image and a non-display area adjacent to the display area, and the first area is defined in the non-display area.

11. The display device of claim 1 , wherein the display panel comprises a display area to display an image and a non-display area adjacent to the display area, and the first area is defined to cross the display area.

12. The display device of claim 1 , wherein the first area crosses the display panel in a first direction when viewed in a plan view and is bent with respect to a reference axis defined in the first area and extending in the first direction.

13. The display device of claim 1 , wherein the first film comprises polyethylene terephthalate.

14. The display device of claim 1 , wherein the second film comprises a polarizing plate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 15, 2018
From: SUNG, TAEHYUN; KIM, KWAN-SU; HAN, JUNGHOON; MIN, KYOUNGIL; LEE, HYUNGU; PARK, JUNSHIK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 047239/0010 →
Priority Claims (1)
KR 10-2016-0072735 · Jun 10, 2016 · national
Continuity (2)
Division 15409491 · Jan 18, 2017
Related Publication 20190051861A1 · Feb 14, 2019
Cited By (3)
US 12,575,298 US 12,666,856 US 12,716,015