Electro-optical device and electronic apparatus

Patent metadata

Field	Value
Publication number	US-9470932-B2
Application number	US-201514753154-A
Country	US
Kind code	B2
Filing date	Jun 29, 2015
Priority date	Jul 2, 2014
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

An electro-optical device includes an element substrate, a counter substrate arranged so as to face the element substrate through a seal material, in which the element substrate, the counter substrate, and the seal material are arranged so that a ratio of a length from a side face of each of the element substrate and the counter substrate to the seal material to a length of an interval between the element substrate and the counter substrate becomes from 50 to 300, and a barrier film is provided so as to cover the seal material and at least a part of side faces of the element substrate and the counter substrate.

First claim

What is claimed is:

1. An electro-optical device comprising:
an element substrate;
a counter substrate arranged so as to face the element substrate through a seal material; and
an inorganic film provided so as to cover a side face of the seal material, at least a part of a side face of the element substrate, and at least a part of a side face of the counter substrate,
wherein the element substrate and the seal material are arranged so that a ratio of a length between the side face of the element substrate and the side face of the seal material to a length of an interval between the element substrate and the counter substrate is from 50 to 300, and
the counter substrate and the seal material are arranged so that a ratio of a length between the side face of the counter substrate and the side face of the seal material to a length of an interval between the element substrate and the counter substrate is from 50 to 300.

2. The electro-optical device according to claim 1 ,
wherein a length of an interval between the element substrate and the counter substrate is from 1 μm to 5 μm,
a length between the side face of the element substrate and the side face of the seal material is from 1 μm to 1,000 μm, and
a length between the side face of the counter substrate and the side face of the seal material is from 1 μm to 1,000 μm.

3. The electro-optical device according to claim 1 ,
wherein a length of an interval between the element substrate and the counter substrate is from 2 μm to 3 μm, and
wherein a length between the side face of the element substrate and the side face of the seal material is from 1 μm to 1,000 μm, and
a length between the side face of the counter substrate and the side face of the seal material is from 100 μm to 700 μm.

4. The electro-optical device according to claim 1 ,
wherein the inorganic film is a film formed by an ALD technique.

5. The electro-optical device according to claim 1 ,
wherein the inorganic film is formed of tantalum oxide.

6. The electro-optical device according to claim 1 ,
wherein a thickness of the inorganic film is from 1 nm to 50 nm.

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

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

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

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

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

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

Assignees

• Seiko Epson Corp

Inventors

• Shinohara Takashi
• Shimizu Yuichi
• Kobayashi Shigeki
• Miyakawa Takuya

Classifications

• G02F2201/501

  Blocking layers, e.g. against migration of ions · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F2001/133311

  Physics · mapped topic

• G02F1/133311

  Environmental protection, e.g. against dust or humidity · CPC title