IP Library Granted Patent US 9,069,200
Granted Patent B2
US 9,069,200 · App. 14/268,751 · Granted Jun 30, 2015

Electro-optical device and electronic equipment

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Quick Facts
Patent No.
US 9,069,200
App. No.
14/268,751
Granted
Jun 30, 2015
Kind
B2
Abstract

An electro-optical devices includes: a first substrate; a second substrate having one surface opposite to the first substrate; a support member configured to hold the first and second substrates with the second substrate located outside the first substrate, and to include a frame portion surrounding the first and second substrates; a first conductive film formed on the other surface of the second substrate; and a conductor layer placed between the frame portion and the first and second substrates, and electrically connected to the first conductive film. The first conductive film is held at a constant potential via the conductor layer.

Claims (41)

1. An electro-optical device comprising:

a first substrate;

a second substrate having a first surface opposite to the first substrate;

a support member including a bottom portion and a frame portion rising continuously from the bottom portion, and configured to hold the first and second substrates so that the first substrate is located between the second substrate and the bottom portion and so that the first substrate and the second substrate are surrounded by the frame portion;

a first conductive film formed on a second surface of the second substrate;

a conductor layer placed between the frame portion and the first and second substrates, and electrically connected to the first conductive film; and

a conductive member that is provided on the side of a second surface of the first substrate opposite to a first surface of the first substrate facing the second substrate,

wherein the first conductive film is held at a constant potential via the conductor layer,

the conductor layer is in contact with the first substrate, and

the conductive member is in contact with the conductor layer on the side of the second surface of the first substrate.

2. The electro-optical device according to claim 1 , wherein the conductor layer is formed by a conductive paste including a matrix material and a plurality of conductive particles contained in the matrix material.

3. The electro-optical device according to claim 1 , wherein an inner surface of the frame portion is formed with an indentation, and

wherein an air gap formed by the indentation is filled with the conductor layer.

4. The electro-optical device according to claim 1 , wherein the conductive member is a conductive tape,

the first substrate is attached with the conductive tape for fixing the first substrate to the support member, and the conductive tape is in contact with the conductor layer.

5. The electro-optical device according to claim 4 , further comprising:

a wiring substrate connected to the first substrate,

wherein the wiring substrate is formed with wiring held at a constant potential, and

wherein the conductive tape is electrically connected to the wiring.

6. The electro-optical device according to claim 4 , wherein the support member includes a metal case defining an outline of the bottom portion and the frame portion and held at a constant potential, and

wherein the first substrate is attached to the metal case via the conductive tape.

7. The electro-optical device according to claim 4 , further comprising:

a second conductive film formed on the second surface of the first substrate; and

an insulating member arranged on the side of the second surface of the first substrate,

wherein a base material of the first substrate is an insulating substrate, and

wherein the conductive tape is attached to and electrically connected to the second conductive film on the side of the second surface of the first substrate.

8. The electro-optical device according to claim 1 , wherein the support member includes a metal case defining an outline of the bottom portion and the frame portion and held at a constant potential,

wherein at least a portion of the metal case is exposed to the inside in the frame portion, and

wherein the conductor layer is electrically connected to the exposed portion.

9. The electro-optical device according to claim 8 , further comprising:

a second conductive film formed on a second surface of the first substrate;

an insulating member arranged on the side of the second surface of the first substrate; and

a conductive tape attached to and electrically connected to the second conductive film on the side of the second surface of the first substrate,

wherein a base material of the first substrate is an insulating substrate, and

wherein the conductor layer is electrically connected to the conductive tape.

10. Electronic equipment comprising the electro-optical device according to claim 1 .

11. The electro-optical device according to claim 1 , wherein

an uppermost position of the frame portion is positioned above an upper surface of the second substrate that is stacked on the first substrate.

12. The electro-optical device according to claim 1 , further comprising:

a polarizing plate formed on the first conductive film, wherein

an upper surface of the conductor layer is located at an intermediate position of the upper polarizing plate, in a thickness direction thereof, on the first conductive film, so that the conductor layer does not overlap the upper polarizing plate.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
CHANGE OF NAME Recorded Apr 2, 2015
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 035320/0088 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 3, 2014
From: ONISHI, YASUNORI
To: SONY CORPORATION
Reel/Frame 033238/0785 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 3, 2014
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 033238/0821 →