IP Library Granted Patent US 7,567,333
Granted Patent B2
US 7,567,333 · App. 11/652,686 · Granted Jul 28, 2009

Liquid crystal display device and method of fabricating the same

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Quick Facts
Patent No.
US 7,567,333
App. No.
11/652,686
Granted
Jul 28, 2009
Kind
B2
Abstract

A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.

Claims (24)

1. A liquid crystal display device, comprising:

first and second substrates spaced apart from each other and having a plurality of pixel regions;

gate and data lines disposed on the first substrate to cross each other;

a thin film transistor at each crossing point of the gate and data lines;

a pixel electrode connected to each thin film transistor;

a black matrix array having a lattice configuration on the second substrate, the black matrix array corresponding to one of the gate and data lines;

a color filter layer on the black matrix array and corresponding to each of the pixel regions; and

a column spacer array having a lattice configuration on the color filter layer, the column spacer array corresponding to the black matrix array.

2. The device according to claim 1 , wherein the column spacer array has width portions narrower than width portions of the black matrix array.

3. The device according to claim 1 , further comprising a common electrode on the second substrate.

4. A method of fabricating a liquid crystal display device, comprising:

preparing first and second substrates having a plurality of pixel regions;

forming gate and data lines crossing each other on the first substrate;

forming a thin film transistor at each crossing point of the gate and data lines;

forming a pixel electrode connected to each thin film transistor;

forming a black matrix array having a lattice configuration on the second substrate;

forming a color filter layer on the black matrix array;

forming a column spacer array having a lattice configuration on the color filter layer, the column spacer array corresponding to the black matrix array;

applying a liquid crystal material onto the first substrate; and

attaching the first and second substrates together.

5. The method according to claim 4 , wherein the column spacer array has width portions narrower than width portions of the black matrix.

6. The method according to claim 4 , wherein the black matrix array corresponds to one of the gate and data lines.

7. The method according to claim 4 , wherein the color filter layer corresponds to the pixel regions.

8. The method according to claim 4 , further comprising forming a common electrode on the second substrate.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2007
From: LEE, CHANG-HOON; CHOI, II-MAN
To: LG. PHILIPS LCD. CO., LTD.
Reel/Frame 018804/0683 →