IP Library Granted Patent US 10,367,042
Granted Patent B2
US 10,367,042 · App. 15/462,246 · Granted Jul 30, 2019

Display device

Inventors: Ryoichi Ito (Tokyo, JP); Toshihiro Sato (Tokyo, JP)
Assignee: Japan Display Inc.
H01L27/3244H01L51/5253H01L2251/301H01L2251/556
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Quick Facts
Patent No.
US 10,367,042
App. No.
15/462,246
Granted
Jul 30, 2019
Kind
B2
Abstract

A display device includes an element substrate including a display area where a plurality of self-light-emitting elements are formed, and a driver IC disposed outside the display area in the element substrate. A first metal layer is disposed on the reverse side of the element substrate at a position opposite to the display area. A second metal layer is disposed with a space between the first metal layer and the second metal layer on the reverse side of the element substrate at a position opposite to the driver IC.

Claims (50)

1. A display device comprising:

a plurality of organic emitting elements;

an element substrate which has a first surface including a display region on which the plurality of organic elements are arranged, the first surface including a peripheral region surrounding the display region;

an IC chip;

a thermal dispersion film on a second surface of the element substrate, the second surface being opposite to the first surface; and

a metal film on the second surface, wherein

in plan view, the element substrate has a first side, a second side, a third side facing the first side, and a fourth side facing the second side, a first length of each of the first and third sides is longer than a second length of each of the second and fourth sides,

the thermal dispersion film overlaps the IC chip in plan view,

the metal film overlaps the display region, and

a first plane area of the thermal dispersion film is smaller than a second plane area of the metal film.

2. The display device according to claim 1 , wherein the thermal dispersion film is made of metal.

3. The display device according to claim 2 , wherein the thermal dispersion film is a copper film or an aluminum film.

4. The display device according to claim 1 , wherein the IC chip is arranged in the peripheral region in plan view.

5. The display device according to claim 1 , further comprising a counter substrate on the organic emitting elements,

wherein the counter substrate covers all areas of the display region and a part of the thermal dispersion film in plan view.

6. The display device according to claim 1 , further comprising a protective layer including an insulating layer and covering the thermal dispersion film, the metal film, and the second surface.

7. The display device according to claim 1 , wherein the peripheral region overlaps the thermal dispersion film in plan view.

8. A display device comprising:

a plurality of organic emitting elements;

an element substrate which has a first surface including a display region on which the plurality of organic elements are arranged, the first surface including a peripheral region surrounding the display region;

a counter substrate on the plurality of organic elements;

a first thermal dispersion film on a second surface of the element substrate, the second surface being opposite to the first surface; and

a second thermal dispersion film on the second surface, wherein

the element substrate has a first region overlapping the counter substrate and a second region not overlapping the counter substrate,

the first thermal dispersion film overlaps the second region,

the second thermal dispersion film overlaps the first region, and

a first plane area of the first thermal dispersion film is smaller than a second plane area of the second thermal dispersion film.

9. The display device according to claim 8 , wherein the first thermal dispersion film is made of metal.

10. The display device according to claim 9 , wherein the first thermal dispersion film is a copper film or an aluminum film.

11. The display device according to claim 8 , further comprising a driver IC on the second region,

wherein the first dispersion film overlaps the driver IC.

12. The display device according to claim 10 , further comprising a protective layer including an insulating layer and covering the first and second thermal dispersion films and the second surface.

13. The display device according to claim 9 , wherein the peripheral region overlaps the first thermal dispersion film in plan view.

14. A display device comprising:

a plurality of organic emitting elements;

an element substrate which has a first surface including a display region on which the plurality of organic elements are arranged, the first surface including a peripheral region surrounding the display region;

an IC chip;

a first film on a second surface of the element substrate, the second surface being opposite to the first surface; and

a second film on the second surface, wherein

in plan view, the element substrate has a first side, a second side, a third side facing the first side, and a fourth side facing the second side, a first length of each of the first and third sides is longer than a second length of each of the second and fourth sides,

the first film overlaps the IC chip in plan view,

the second film overlaps the display region, and

a first plane area of the first film is smaller than a second plane area of the second film.

15. The display device according to claim 1 , wherein the first film is made of metal.

16. The display device according to claim 2 , wherein the first film is a copper film or an aluminum film.

17. The display device according to claim 1 , wherein the IC chip is arranged in the peripheral region in plan view.

18. The display device according to claim 1 , further comprising a counter substrate on the organic emitting elements,

wherein the counter substrate covers all areas of the display region and a part of the first film in plan view.

19. The display device according to claim 1 , further comprising a protective layer including an insulating layer and covering the first and second films and the second surface.

20. The display device according to claim 1 , wherein the peripheral region overlaps the first film in plan view.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2014-188588 · Sep 17, 2014 · national
Continuity (3)
Continuation 15204384 · Jul 7, 2016
Continuation 14847923 · Sep 8, 2015
Related Publication 20170194393A1 · Jul 6, 2017