IP Library › Granted Patent US 10,642,026
Granted Patent B2
US 10,642,026 · App. 16/260,478 · Granted May 5, 2020

Electro-optical device, method of manufacturing electro-optical device, and electronic apparatus

Inventor: Satoshi Ito (Eniwa, JP)
Assignee: SEIKO EPSON CORPORATION
G02B26/0833G02B26/008
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Quick Facts
Patent No.
US 10,642,026
App. No.
16/260,478
Granted
May 5, 2020
Kind
B2
Abstract

An electro-optical device is configured by a laminated body of a second conductive layer and a reflective layer for a mirror. The second conductive layer includes a mirror support post facing a concave portion at a side opposite to a substrate, and a flat plate which extends from an end portion of the mirror support post and faces the substrate. The concave portion is filled with the resin. Surfaces of the flat plate and the resin configure a continuous plane. The reflective layer for a mirror is laminated on a surface of the resin at a side opposite to the substrate, and a surface of the flat plate of the second conductive layer at a side opposite to the substrate.

Claims (36)

1. An electro-optical device comprising:

a substrate;

a torsion hinge disposed above the substrate;

a conductive layer disposed above the torsion hinge;

a support post which protrudes from the conductive layer to the torsion hinge, and which includes a resin, the support post having a concave portion with the resin filling the concave portion; and

a reflective layer which completely covers a surface of the conductive layer and the resin, the reflective layer directly contacting the resin,

wherein a height difference between a height from the torsion hinge to a surface of the resin at a side opposite to the substrate and a height from the torsion hinge to a surface of the conductive layer at a side opposite to the substrate is equal to 0.2 μm or less, and

wherein a depth of the support post is larger than an inner diameter of the support post.

2. An electro-optical device comprising:

a substrate;

a torsion hinge disposed above the substrate;

a flat plate disposed on the torsion hinge;

a supporting portion in which a resin is filled in a recess protruding from the flat plate toward the torsion hinge; and

a reflective layer which completely covers a surface of the flat plate in a plan view, a whole of the reflective layer overlapping the flat plate,

wherein a height difference between a height from the torsion hinge to a surface of the resin at a side opposite to the substrate and a height from the torsion hinge to a surface of the flat plate at a side opposite to the substrate is equal to 0.2 μm or less.

3. An electronic apparatus comprising:

the electro-optical device according to claim 1 ; and

a light source unit which emits light source light to the reflective layer.

4. An electronic apparatus comprising:

the electro-optical device according to claim 2 ; and

a light source unit which emits light source light to the reflective layer.

5. An electro-optical device comprising:

a substrate;

a torsion hinge disposed above the substrate;

a conductive layer disposed above the torsion hinge; and

a reflective layer disposed on the conductive layer, wherein

the conductive layer includes a support post and flat plate,

the support post is formed continuously with the flat plate, protrudes toward the torsion hinge and contacts the torsion hinge,

the reflective layer contacts the flat plate, a whole of the reflective layer overlapping the conductive layer and

A>B, wherein

A is a thickness of the flat plate, and

B is a thickness of the reflective layer.

6. The electro-optical device according to claim 5 , wherein the support post is filled with a resin.

7. The electro-optical device according to claim 6 , wherein the resin is surrounded by the support post and the reflective layer.

8. The electro-optical device according to claim 6 , wherein the reflective layer contacts the resin.

9. The electro-optical device according to claim 2 , wherein the flat plate and the supporting portion are made of conductive material.

Priority Claims (1)
JP 2015-074871 · Apr 1, 2015 · national
Continuity (3)
Continuation 15867178 · Jan 10, 2018
Continuation 15059707 · Mar 3, 2016
Related Publication 20190171002A1 · Jun 6, 2019