Electro-optical device and electronic apparatus

Patent metadata

Field	Value
Publication number	US-2016013258-A1
Application number	US-201514865695-A
Country	US
Kind code	A1
Filing date	Sep 25, 2015
Priority date	May 15, 2012
Publication date	Jan 14, 2016
Grant date	—

Abstract

An electro-optical device includes a reflective layer, a light emitting element including a light emitting layer formed between an anode and a cathode, and a driving transistor configured to control a current flowing through the light emitting element. In the same layer as the reflective layer, a relay electrode included in a current path from the driving transistor to the anode is formed with a gap between the relay electrode and the reflective layer. A contact electrode electrically connecting the relay electrode and the anode is formed as a light shielding layer that blocks light entering the gap.

First claim

What is claimed is:

1 . An electro-optical device comprising:
a substrate; a first insulating film provided above the substrate; a reflective layer provided on the first insulating film; a second insulating film provided above the reflective layer, the second insulating film having a first contact hole; a contact electrode electrically connected to a transistor through the first contact hole, the contact electrode being provided on the second insulating film; a first optical adjustment layer provided on the contact electrode and the second insulating film; a second optical adjustment layer provided on the first optical adjustment layer; an anode provided on the contact electrode and the second optical adjustment layer; an organic functional layer provided on the anode, the organic functional layer including a light emitting layer; a cathode provided on the organic functional layer, wherein the first optical adjustment layer and the second optical adjustment layer have a second contact hole, the anode electrically contacts to the contact electrode through the second contact hole.

2 . The electro-optical device according to claim 1 ,
wherein the contact electrode is made of titanium nitride.

3 . The electro-optical device according to claim 1 ,
wherein the second insulating film is made of silicon nitride.

4 . The electro-optical device according to claim 3 ,
wherein the first optical adjustment layer is made of silicon oxide, and wherein the second optical adjustment layer is made of silicon oxide.

5 . The electro-optical device according to claim 3 ,
wherein the reflective layer includes aluminum.

6 . The electro-optical device according to claim 5 , further comprising a third insulating film provided between the reflective layer and the second insulating film.

7 . The electro-optical device according to claim 6 ,
wherein the third insulating film is made of silicon oxide.

8 . The electro-optical device according to claim 1 ,
wherein the anode is made of indium tin oxide.

9 . An electronic apparatus comprising the electro-optical device according to claim 1 .

10 . An electronic apparatus comprising the electro-optical device according to claim 2 .

11 . An electronic apparatus comprising the electro-optical device according to claim 3 .

12 . An electronic apparatus comprising the electro-optical device according to claim 4 .

13 . An electronic apparatus comprising the electro-optical device according to claim 5 .

14 . An electronic apparatus comprising the electro-optical device according to claim 6 .

15 . An electronic apparatus comprising the electro-optical device according to claim 7 .

16 . An electronic apparatus comprising the electro-optical device according to claim 8 .

Assignees

• Seiko Epson Corp

Inventors

• Koshihara Takeshi
• Sato Hisakatsu
• Nomura Takeshi

Classifications

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/878 Primary

  comprising reflective means · CPC title

• H10K59/876

  comprising a resonant cavity structure, e.g. Bragg reflector pair · CPC title

• H10K59/8052

  Cathodes · CPC title

• H10K59/8051

  Anodes · CPC title