IP Library Granted Patent US 8,098,009
Granted Patent B2
US 8,098,009 · App. 12/314,003 · Granted Jan 17, 2012

Electro-optical device and electronic apparatus for a liquid crystal panel

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Quick Facts
Patent No.
US 8,098,009
App. No.
12/314,003
Granted
Jan 17, 2012
Kind
B2
Abstract

An electro-optical device includes a light emitting unit; a color filter that has a plurality of colored portions selectively transmitting light components belonging to a portion of a wavelength range of light emitted from the light emitting unit; and a color converting member that converts some of the light components emitted from the light emitting unit into light components having wavelengths around transmission wavelength ranges of the colored portions having one or more colors of the color filter, which is provided between the light emitting unit and the color filter.

Claims (24)

1. An electro-optical device comprising:

an element substrate;

a pixel electrode disposed over the element substrate;

a counter electrode opposite to the pixel electrode, the counter electrode having light transmissivity;

an organic electro-luminescent (EL) layer disposed between the pixel electrode and the counter electrode, the organic EL layer having at least a light-emitting layer;

a sealing material disposed over the counter electrode;

a color converting layer which is a substantially flat sheet layer over the sealing material, the color converting layer overlapping the pixel electrode in plan view;

a counter substrate opposite to the element substrate, the color converting layer being disposed between the counter substrate and the element substrate;

a color filter disposed over the counter substrate, the color filter including a colored portion that selectively transmits a light that is within a certain wavelength range; and

an adhesive layer bonding the element substrate and the counter substrate such that the color converting layer and the colored portion are opposite to each other;

the colored portion overlapping the organic EL layer and the color converting layer in plan view,

the color converting layer converting a light emitted by the organic EL layer into light having a wavelength near the certain wavelength range selectively transmitted by the colored portion.

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

another pixel electrode adjacent to the pixel electrode;

another organic EL layer adjacent to the organic EL layer; and

a bank layer that partitions the pixel electrode from the another pixel and that partitions the organic EL layer from the another organic EL layer.

3. The electro-optical device according to claim 1 , the sealing material having a gas barrier property.

4. The electro-optical device according to claim 1 , the colored portion of the color filter being a red colored portion that transmits red colored light, the color filter further including a green colored portion that transmits green colored light and a blue colored portion that transmits blue colored light.

5. The electro-optical device according to claim 1 , the color converting layer being a resin film containing a fluorescent pigment.

6. The electro-optical device according to claim 1 , the color converting layer being a half mirror made of an inorganic material.

7. An electronic device including the electro-optical device according to claim 1 .

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

a first bank layer, the pixel electrode being partitioned by the first bank layer; and

a second bank layer, the colored portion being partitioned by the second bank layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2018
From: SEIKO EPSON CORPORATION
To: 138 EAST LCD ADVANCEMENTS LIMITED
Reel/Frame 046153/0397 →