IP Library Granted Patent US 7,298,436
Granted Patent B2
US 7,298,436 · App. 10/941,520 · Granted Nov 20, 2007

Liquid crystal display substrate, method of manufacturing the same, and liquid crystal display device having the same

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Quick Facts
Patent No.
US 7,298,436
App. No.
10/941,520
Granted
Nov 20, 2007
Kind
B2
Abstract

A liquid crystal display substrate capable of providing good reflection display characteristics, a method of manufacturing the same, and a liquid crystal display device having the same are provided. The liquid crystal display substrate contains a plurality of pixel areas each having a reflection area reflecting light incident from a front surface side of the substrate and a transmission area transmitting light incident from a back surface side of the substrate; a wrinkled resin layer formed with a positive light-sensitive resin in the reflection area and having at least a portion thereof a wrinkled surface; a reflection electrode formed with a light reflection material on the wrinkled resin layer and having a wrinkled surface following the surface of the wrinkled resin layer; and light shielding portions formed as an underlayer of the wrinkled resin layer and shielding light incident from the back surface of the substrate.

Claims (10)

1. A liquid crystal display substrate comprising:

a plurality of pixel areas each having at least a portion thereof a reflection area reflecting light incident from a front surface side of the substrate;

a wrinkled resin layer formed with a positive light-sensitive resin in the reflection area, the wrinkled resin layer having at least a portion thereof a wrinkled surface;

a reflection electrode formed with a light reflection material on the wrinkled resin layer, the reflection electrode having a wrinkled surface following the surface of the wrinkled resin layer; and

a light shielding portion formed as an underlayer of the wrinkled resin layer, the light shielding portion shielding light incident from a back surface side of the substrate,

wherein the plurality of pixel areas each has a transmission area having a transparent electrode formed therein that transmits light incident from the back surface side of the substrate to the front surface side of the substrate; and

at least a portion of the light shielding portion is formed with the same material as the transparent electrode.

2. A liquid crystal display substrate as claimed in claim 1 , wherein the light shielding portion comprises an underlayer formed with the same material as the transparent electrode, and an upper layer formed with a material having light shielding capability on the underlayer and patterned in substantially the same shape as the underlayer.

3. A liquid crystal display device comprising a pair of substrates facing each other and a liquid crystal sealed between the pair of substrates,

one of the pair of substrates comprises a liquid crystal display substrate as claimed in claim 1 .

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2011
From: FUJITSU LIMITED
To: AU OPTRONICS CORPORATION
Reel/Frame 027068/0612 →
MERGER Recorded Jan 23, 2006
From: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
To: FUJITSU LIMITED
Reel/Frame 017049/0706 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2004
From: MISAKI, KATSUNORI; TANAKA, YOSHINORI; DOI, SEIJI
To: FUJITSU DISPLAY TECHNOLOGIES CORPORATION; AU OPTRONICS CORPORATION
Reel/Frame 015805/0560 →