IP Library Granted Patent US 7,443,472
Granted Patent B2
US 7,443,472 · App. 10/673,145 · Granted Oct 28, 2008

Liquid crystal display device and method of fabricating the same

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Quick Facts
Patent No.
US 7,443,472
App. No.
10/673,145
Granted
Oct 28, 2008
Kind
B2
Abstract

A liquid crystal display device includes a transparent insulating substrate, a gate line and a gate electrode on the transparent insulating substrate, a gate insulating film, an active layer, an ohmic contact layer, source and drain electrodes, and a data line on the transparent insulating substrate, a passivation film formed on the transparent insulating substrate including the source and drain electrodes and the data line, a compensation film formed on the passivation film, and a pixel electrode formed on at least the compensation film.

Claims (14)

1. A liquid crystal display device, comprising:

a thin film transistor substrate;

a pixel electrode formed on the thin film transistor substrate;

a color filter substrate including a black matrix;

a common electrode formed on the color filter substrate;

a liquid crystal material formed between the thin film transistor substrate and the color filter substrate; and

a compensation film at least disposed between the pixel electrode and the thin film transistor substrate to contact the pixel electrode within a pixel region,

wherein the compensation film compensates for phase variations of light transmitted through the liquid crystal material and is only located under the pixel electrode, and

wherein the compensation film is formed with a single uniform layer.

2. The device according to claim 1 , further comprising

an overcoat film formed between the compensation film and a color filter film on the color filter substrate.

3. The device according to claim 2 , wherein the overcoat film is formed between red, green, and blue color filter layers of the color filter film.

4. The device according to claim 3 , wherein the overcoat film contacts the black matrix formed between the red, green, and blue color filter layers.

5. The device according to claim 3 , wherein the overcoat film contacts the red, green, and blue color filter layers.

Assignments (2)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2003
From: SA, UN NYOUNG; WOO, JOUNG WON; LEE, MAN HOAN; HONG, HYUNG KI
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 014565/0445 →