IP Library Granted Patent US 10,490,776
Granted Patent B2
US 10,490,776 · App. 15/972,629 · Granted Nov 26, 2019

Electro-optical apparatus, manufacturing method thereof, and electronic device

Inventor: Takeshi Koshihara (Nagano, JP)
Assignee: SEIKO EPSON CORPORATION
H01L51/5265H01L27/3211H01L27/3276H01L27/3297H01L51/0023H01L51/5203H01L51/5218H01L51/56H01L27/3262H01L51/5253H01L2227/323H01L2251/301H01L2251/308
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Quick Facts
Patent No.
US 10,490,776
App. No.
15/972,629
Granted
Nov 26, 2019
Kind
B2
Abstract

There is provided an electro-optical apparatus including an element substrate that includes a display region in which a plurality of light-emitting elements are arranged, and a peripheral region in which a terminal is disposed. The light-emitting element has a structure in which a reflective electrode, an optical adjustment layer, a first electrode, a light-emitting layer, and a second electrode are laminated, and the first electrode is electrically connected to a contact electrode. The terminal has a structure in which a first terminal layer that is formed by a first conductive film which is the same as the reflective electrode, a second terminal layer that is formed by a second conductive film which is the same as the contact electrode, and a third terminal layer that is formed by a third conductive film which is the same as the first electrode are laminated.

Claims (47)

1. An electro-optical apparatus comprising:

a substrate;

a first electrode;

a light-emitting layer disposed between the first electrode and the substrate;

an optical path adjustment layer disposed between the light-emitting layer and the substrate;

a reflective electrode disposed between the optical path adjustment layer and the substrate;

a second electrode disposed between the light-emitting layer and the optical path adjustment layer;

a pixel separation layer made from an insulation layer;

a terminal including a first terminal layer, a second terminal layer, and a third terminal layer,

wherein the first terminal layer and the reflective electrode are formed by a first conductive film,

wherein the second terminal layer and a contact electrode are formed by a second conductive film,

wherein the third terminal layer and the second electrode are formed by a third conductive film,

wherein the pixel separation layer has an opening which exposes a portion of the second electrode and covers a peripheral edge section of the second electrode, and

wherein the contact electrode is provided so as not to overlap the opening of the pixel separation layer in plan view.

2. The electro-optical apparatus according to claim 1 ,

wherein the third conductive film includes a transparent conductive material,

the second conductive film includes a conductive material with a higher conductivity than the third conductive film, and

the first conductive film includes a conductive material.

3. The electro-optical apparatus according to claim 2 ,

wherein the third conductive film includes indium tin oxide,

the second conductive film includes titanium nitride, and

the first conductive film includes aluminum and copper.

4. The electro-optical apparatus according to claim 1 ,

wherein the first electrode is electrically connected to the reflective electrode via the contact electrode, and

the reflective electrode is electrically connected to a transistor.

5. The electro-optical apparatus according to claim 1 ,

wherein the reflective electrode is configured by a portion of a power supply line,

a relay electrode which is electrically connected to a transistor is disposed inside an opening which is formed in the reflective electrode, and

the first electrode is electrically connected to the relay electrode via the contact electrode.

6. The electro-optical apparatus according to claim 1 , further comprising a protective layer disposed between the optical path adjustment layer and the reflective electrode.

7. The electro-optical apparatus according to claim 6 ,

wherein the protective layer has a contact hole, and

the contact electrode is electrically connected to the reflective electrode via the contact hole.

8. An electronic device comprising:

the electro-optical apparatus according to claim 1 .

9. An electronic device comprising:

the electro-optical apparatus according to claim 2 .

10. An electronic device comprising:

the electro-optical apparatus according to claim 3 .

11. An electronic device comprising:

the electro-optical apparatus according to claim 4 .

12. An electronic device comprising:

the electro-optical apparatus according to claim 5 .

13. An electronic device comprising:

the electro-optical apparatus according to claim 6 .

14. An electronic device comprising:

the electro-optical apparatus according to claim 7 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2023
From: SEIKO EPSON CORPORATION
To: LUMITEK DISPLAY TECHNOLOGY LIMITED
Reel/Frame 065221/0372 →
Priority Claims (1)
JP 2014-262959 · Dec 25, 2014 · national
Continuity (3)
Continuation 15497654 · Apr 26, 2017
Division 14958028 · Dec 3, 2015
Related Publication 20180261802A1 · Sep 13, 2018
Cited By (1)
US 12,402,491