IP Library Granted Patent US 9,989,791
Granted Patent B2
US 9,989,791 · App. 15/296,111 · Granted Jun 5, 2018

Display device

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Quick Facts
Patent No.
US 9,989,791
App. No.
15/296,111
Granted
Jun 5, 2018
Kind
B2
Abstract

In a display device using a substrate having flexibility, a drop in reliability due to defects such as cracks in the case where a substrate is made to curve is controlled. A display device is provided including a first substrate having flexibility, the first substrate including a curved part, an organic film covering a first surface of the first substrate and a second surface opposing the first surface in the curved part; and a pixel part and a drive circuit part arranged on the first surface.

Claims (25)

1. A display device comprising:

a first substrate having flexibility, the first substrate including a curved part;

an organic film covering a first surface of the first substrate, a second surface opposing the first surface, and a side surface intersecting the first and second surfaces in the curved part; and

a pixel part and a drive circuit part arranged on the first surface.

2. The display device according to claim 1 , wherein the first substrate has an area which is different from the curved part, and

the organic film is not arranged on at least a part of the area.

3. The display device according to claim 1 , wherein the organic film is arranged in a region between the pixel part and the drive circuit part.

4. The display device according to claim 1 , wherein a wiring part is located between the pixel part and the drive circuit part and the organic film covers the wiring part.

5. The display device according to claim 1 , further comprising a sealing material sealing the pixel part,

wherein the sealing material faces the first substrate and does not overlap the curved part.

6. The display device according to claim 1 , wherein the organic film is formed from polychloroparaxylene.

7. The display device according to claim 1 , wherein the pixel part includes a plurality of pixels and each of the plurality of pixels has a light emitting element including an organic electroluminescence material.

8. The display device according to claim 1 , wherein the pixel part includes a plurality of pixels and each of the plurality of pixels includes a liquid crystal element.

9. A display device comprising:

a curved part;

a non-curved part;

a first region including the curved part;

a second region different from the first region and located in the non-curved part,

an organic film covering a first entire periphery of the first region, and having a portion which does not cover a second entire periphery of the second region, the first entire periphery including a pair of main surfaces and a side surface intersecting the main surfaces.

10. The display device according to claim 9 , wherein the organic film is formed from polychloroparaxylene.

11. The display device according to claim 9 , wherein a pixel part includes a plurality of pixels,

a peripheral region is adjacent to the pixel part and includes a plurality of terminals, and

the curved part is located in the peripheral region.

12. The display device according to claim 9 , wherein the entire periphery of the first region includes a top surface, a bottom surface opposite to the top surface, and a side surface intersecting the top surface and the bottom surface.

13. The display device according to claim 12 , wherein the organic film covers the top surface, the bottom surface, and the side surface continuously.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2016
From: CHENG, HSIANG YUAN
To: JAPAN DISPLAY INC.
Reel/Frame 040041/0052 →