IP Library Granted Patent US 9,039,193
Granted Patent B2
US 9,039,193 · App. 13/602,729 · Granted May 26, 2015

Electro-optic module and electronic apparatus

Inventor: Tomoaki Miyashita (Shimosuwa-machi, JP)
Assignee: Seiko Epson Corporation
H04N9/3105G02F1/133385G02F1/133512G03B21/006G03B21/16H04N9/3144
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Quick Facts
Patent No.
US 9,039,193
App. No.
13/602,729
Granted
May 26, 2015
Kind
B2
Abstract

A first light-transmissive plate is provided on an opposite surface of a first substrate of an electro-optic panel to a second substrate. The first light-transmissive plate is smaller than the first substrate, and an end portion of the first substrate is exposed from the first light-transmissive plate. In addition, a heat radiation member made of a metal material is provided so as to be overlapped with the exposed portion from the first light-transmissive plate of the first substrate.

Claims (24)

1. An electro-optic module comprising:

an electro-optic panel that includes a first light-transmissive substrate, a second light-transmissive substrate arranged so as to face the first light-transmissive substrate, and an electro-optic material layer provided between the first light-transmissive substrate and the second light-transmissive substrate;

a first light-transmissive plate that overlaps a side of the first light-transmissive substrate opposite to the second light-transmissive substrate in at least an image display region of the electro-optical panel in a state in which a portion of a surface of the side of the first light-transmissive substrate opposite to the second light-transmissive substrate is exposed; and

a heat radiation member comprising

a frame portion that overlaps the side of the first light-transmissive substrate opposite to the second light-transmissive substrate on at least a part of the exposed portion of the first light-transmissive substrate, and

a parting portion that overlaps a surface of a side of the first light-transmissive plate opposite to the first light-transmissive substrate,

wherein

the heat radiation member is made of a material higher in thermal conductivity than the first light-transmissive plate,

the parting portion contacts the surface of the side of the first light-transmissive plate opposite to the first light-transmissive substrate,

the frame portion contacts the side of the first light-transmissive substrate opposite to the second light-transmissive substrate, and

end portions of the first light-transmissive plate and the heat radiation member which face each other are spaced apart from each other.

2. The electro-optic module according to claim 1 , wherein the heat radiation member is made of a metal.

3. The electro-optic module according to claim 1 , wherein the first light-transmissive plate has a smaller size than a size of the first light-transmissive substrate, an end portion of the first light-transmissive plate is arranged between an end portion of the first light-transmissive substrate and an end portion of the image display region over the whole periphery of the first light-transmissive plate in plan view, and the heat radiation member is provided so as to surround the whole periphery of the first light-transmissive plate.

4. The electro-optic module according to claim 1 , wherein a thickness of the parting portion is smaller than a thickness of a portion that is overlapped with the exposed portion of the first light-transmissive substrate in the heat radiation member.

5. The electro-optic module according to claim 1 , wherein on the second light-transmissive substrate side of the first light-transmissive substrate, a frame for supporting the electro-optic panel is provided between the first light-transmissive substrate and the heat radiation member so as not to be overlapped with the image display region.

6. The electro-optic module according to claim 5 , further comprising:

a second light-transmissive plate that is overlapped on an opposite side of the second light-transmissive substrate to the first light-transmissive substrate in the at least the image display region of the electro-optical panel in a state in which a part of an opposite side surface of the second light-transmissive substrate to the first light-transmissive substrate is exposed,

wherein end portions of the second light-transmissive plate and the frame which face each other are spaced apart from each other.

7. The electro-optic module according to claim 1 , wherein the first light-transmissive substrate is an element substrate including a pixel electrode and a switching element provided to correspond to the pixel electrode.

8. The electro-optic module according to claim 1 , wherein the electro-optic panel is a liquid crystal panel including a liquid crystal layer as the electro-optic material layer.

9. An electronic apparatus that includes the electro-optic module according to claim 1 , comprising:

a light source unit that emits light supplied to the electro-optic module; and

a projection optical system that projects light modulated by the electro-optic module.

10. The electro-optic module according to claim 5 , wherein end portions of the first light-transmissive substrate and the frame which face each other are spaced apart from each other.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2024
From: SEIKO EPSON CORPORATION
To: 138 EAST LCD ADVANCEMENTS LIMITED
Reel/Frame 067131/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2012
From: MIYASHITA, TOMOAKI
To: SEIKO EPSON CORPORATION
Reel/Frame 028893/0031 →
Priority Claims (1)
JP 2011-208668 · Sep 26, 2011 · national
Continuity (1)
Related Publication 20130077058A1 · Mar 28, 2013