IP Library Granted Patent US 10,541,278
Granted Patent B2
US 10,541,278 · App. 15/660,276 · Granted Jan 21, 2020

Display device

Inventors: Hidekazu Miyake (Tokyo, JP); Kazufumi Watabe (Tokyo, JP); Yoshinori Ishii (Tokyo, JP)
Assignee: Japan Display Inc.
H01L27/323G06F3/0412H01L27/3276G06F3/044
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Quick Facts
Patent No.
US 10,541,278
App. No.
15/660,276
Granted
Jan 21, 2020
Kind
B2
Abstract

The organic EL display device includes a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and a pixel having an anode, an organic EL layer, and a cathode is formed on a region enclosed with the scanning line and the video signal line. A first detection electrode extends in the first direction above the pixel via insulation films. A counter substrate is disposed while covering the first detection electrode via an adhesive. A second detection electrode extends in the second direction at the outer side of the counter substrate.

Claims (33)

1. An organic EL display device comprising:

a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and a pixel are provided, wherein

the pixel is formed in a region enclosed with the scanning line and the video signal line;

the pixel includes an anode, an organic EL layer and a cathode;

a first electrode of a touch panel extends above the pixel in the first direction via an insulation film;

the first electrode is connected to a first wiring formed as the layer corresponding to the video signal line via a first through hole;

a counter substrate is disposed while covering the first electrode of the touch panel; and

a second electrode of the touch panel extends in the second direction at an outer side of the counter substrate.

2. The organic EL display device according to claim 1 , wherein the first electrode of the touch panel extends between the scanning lines in the first direction in planar view.

3. The organic EL display device according to claim 2 , wherein the first electrode of the touch panel has an opening formed in a part corresponding to the organic EL layer.

4. The organic EL display device according to claim 1 , wherein the first electrode of the touch panel is formed on a flattening film which covers a protective film made of an inorganic insulation film for covering the cathode.

5. The organic EL display device according to claim 1 , wherein the first electrode of the touch panel is formed on a protective film made of an inorganic insulation film for covering the cathode.

6. The organic EL display device according to claim 1 , wherein the second electrode of the touch panel is covered with an overcoat film.

7. The organic EL display device according to claim 6 , wherein the overcoat film is made of a resin.

8. The organic EL display device according to claim 6 , wherein the overcoat film is made of an organic film.

9. The organic EL display device according to claim 1 , wherein the TFT substrate is made of polyimide.

10. The organic EL display device according to claim 1 , wherein the counter substrate is made of glass.

11. An organic EL display device comprising:

a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and a pixel are provided, wherein

the pixel is formed in a region enclosed with the scanning line and the video signal line;

the pixel includes an anode, an organic EL layer and a cathode;

a first electrode of a touch panel extends above the pixel in the first direction via an insulation film;

a counter substrate is disposed while covering the first electrode of the touch panel;

a second electrode of the touch panel extends in the second direction at an inner side of the counter substrate; and

the second electrode is connected to a second wiring formed as the layer corresponding to the video signal line via a second through hole.

12. The organic EL display device according to claim 11 , wherein the first electrode of the touch panel extends between the scanning lines in the first direction in planar view.

13. The organic EL display device according to claim 11 , wherein the first electrode of the touch panel has an opening formed in a part corresponding to the organic EL layer.

14. The organic EL display device according to claim 11 , wherein the first electrode of the touch panel is formed on a flattening film which covers a protective film made of an inorganic insulation film for covering the cathode.

15. The organic EL display device according to claim 11 , wherein the first electrode of the touch panel is formed on a protective film made of an inorganic insulation film for covering the cathode.

16. The organic EL display device according to claim 11 , wherein the second electrode of the touch panel faces the first electrode of the touch panel via an adhesive.

17. The organic EL display device according to claim 11 , wherein the second electrode of the touch panel receives a detection signal supplied from the TFT substrate.

18. The organic EL display device according to claim 11 , wherein the TFT substrate is made of polyimide.

19. The organic EL display device according to claim 11 , wherein the counter substrate is made of glass.

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 Jul 26, 2017
From: MIYAKE, HIDEKAZU; WATABE, KAZUFUMI; ISHII, YOSHINORI
To: JAPAN DISPLAY INC.
Reel/Frame 043103/0290 →
Priority Claims (1)
JP 2016-152758 · Aug 3, 2016 · national
Continuity (1)
Related Publication 20180040671A1 · Feb 8, 2018