IP Library Granted Patent US 7,271,944
Granted Patent B2
US 7,271,944 · App. 11/355,955 · Granted Sep 18, 2007

Electro-optical device and electronic apparatus having the same

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Quick Facts
Patent No.
US 7,271,944
App. No.
11/355,955
Granted
Sep 18, 2007
Kind
B2
Abstract

An electro-optical device includes: a first optical panel having a pair of substrates with an electro-optical material interposed therebetween; a second optical panel that has a pair of substrates with an electro-optical material interposed therebetween, is disposed so as to overlap the first optical panel in plan view, and is smaller than the first optical panel in plan view; an illumination unit having a light source from which light is emitted and a light guiding member that is disposed between the first and second optical panels so as to make the light emitted from the light source incident on the first and second optical panels; and an optical absorber provided in a region other than a display area of the second optical panel between the first and second optical panels.

Claims (13)

1. An electro-optical device comprising:

a first optical panel having a pair of substrates with an electro-optical material interposed therebetween;

a second optical panel that has a pair of substrates with an electro-optical material interposed therebetween, the second optical panel being disposed so as to overlap the first optical panel in plan view and being smaller than the first optical panel in plan view;

an illumination unit having a light source from which light is emitted and a light guiding member that is disposed between the first and second optical panels so as to make the light emitted from the light source incident on the first and second optical panels;

a peripheral light shading film formed in a peripheral portion of the second optical panel and located between the pair of substrates of the second optical panel; and

an optical absorber provided in a region other than a display area of the second optical panel between the first and second optical panels, the optical absorber being formed with an opening portion, light emitted from the light guiding member being incident on the display area of the second optical panel through the opening portion in the optical absorber, an edge of the opening portion being located at a position that overlaps the peripheral light shielding film of the second optical panel.

2. The electro-optical device according to claim 1 , wherein the optical absorber is provided on a surface of the light guiding member facing the second optical panel.

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

a light shielding member that is provided on a surface of the light guiding member facing the first optical panel and has an opening portion through which the light emitted from the light guiding member is incident on a display area of the first optical panel.

4. The electro-optical device according to claim 1 , wherein the optical absorber is a black resin film.

5. An electronic apparatus comprising the electro-optical device according to claim 1 as a display unit.

6. The electro-optical device according to claim 1 , the opening of the optical absorber being configured in such manner that the optical absorber completely surrounds the display area of the second optical panel.

7. The electro-optical device according to claim 1 , the opening having a rectangular shape, and the optical absorber surrounds all four sides of the second optical panel.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072398/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 24, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071935/0063 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2013
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 031377/0894 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2010
From: EPSON IMAGING DEVICES CORPORATION
To: SONY CORPORATION
Reel/Frame 024500/0239 →
CHANGE OF NAME Recorded Mar 22, 2007
From: SANYO EPSON IMAGING DEVICES CORPORATION
To: EPSON IMAGING DEVICES CORPORATION
Reel/Frame 019066/0784 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2006
From: YAMADA, KATSUMI
To: SANYO EPSON IMAGING DEVICES CORPORATION
Reel/Frame 017593/0186 →