IP Library Granted Patent US 7,742,130
Granted Patent B2
US 7,742,130 · App. 12/240,700 · Granted Jun 22, 2010

Color filter plate and thin film transistor plate for liquid crystal display, and methods for fabricating the plates

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Quick Facts
Patent No.
US 7,742,130
App. No.
12/240,700
Granted
Jun 22, 2010
Kind
B2
Abstract

A color filter substrate for a liquid crystal display includes a substrate, a black matrix formed on the substrate, and a plurality of color filters formed on the substrate with the black matrix. Each color filter has a flat central portion, and a peripheral portion placed on the black matrix with a thickness smaller than the central portion. A common electrode is formed on the plurality of color filters. A thin film transistor array substrate for the liquid crystal display includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines crossing over the gate lines while defining pixel regions, a thin film transistor formed at each pixel region, and a plurality of color filters. Each color filter has a flat central portion, and a peripheral portion placed on the data lines with a thickness smaller than the central portion. Contact holes expose the drain electrodes, and pixel electrodes are connected to the drain electrodes through the contact holes.

Claims (13)

1. A liquid crystal display, comprising:

a substrate;

a plurality of gate lines formed on the substrate;

a plurality of data lines crossing over the gate lines;

a plurality of pixel regions defined by the plurality of gate lines and the plurality of data lines;

a thin film transistor formed at each pixel region;

a plurality of color filters, each color filter having a flat central portion and a peripheral portion placed on the data lines and thinner than the central portion;

a plurality of contact holes formed in the plurality of color filters for exposing the drain electrodes; and

a plurality of pixel electrodes connected to the drain electrodes through the contact holes.

2. The liquid crystal display of claim 1 , wherein the plurality of color filters comprise a first color filter and a second color filter neighboring and overlapping the first color filter over the data lines.

3. The liquid crystal display of claim 2 , wherein the peripheral portion of the second color filter overlaps the peripheral portion of the first color filter.

4. The liquid crystal display of claim 3 , wherein the peripheral portion of the second color filter overlaps the peripheral portion and the central portion of the first color filter.

5. The liquid crystal display of claim 1 , wherein the second color filter is spaced apart from the first color filter with a predetermined distance therebetween.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028999/0851 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2008
From: KIM, DONG-GYU
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 021602/0071 →