IP Library Granted Patent US 7,868,992
Granted Patent B2
US 7,868,992 · App. 10/999,004 · Granted Jan 11, 2011

Liquid crystal display device having patterned spacers and method of fabricating the same

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Quick Facts
Patent No.
US 7,868,992
App. No.
10/999,004
Granted
Jan 11, 2011
Kind
B2
Abstract

A liquid crystal display device includes first and second substrates, a black matrix on the second substrate, the black matrix including a plurality of open portions corresponding to pixel regions and a plurality of holes disposed adjacent to the plurality of open portions, color filter layers on the black matrix, and a plurality of patterned spacers corresponding to each of the plurality of holes between the first and the second substrates.

Claims (13)

1. A liquid crystal display device, comprising:

first and second substrates;

a black matrix on the second substrate, the black matrix including a plurality of open portions corresponding to pixel regions and a plurality of holes disposed adjacent to the plurality of open portions;

color filter layers in the open portions of the black matrix;

an overcoat layer on the color filter layers and filling the holes to transmit light therethrough; and

a plurality of patterned spacers on the overcoat layer and at positions corresponding to the plurality of holes between the first and the second substrates,

wherein the plurality of patterned spacers includes a photosensitive material including a sensitizer, and the sensitizer reacts with an UV light of a range having about 313 nm as a central wavelength, and

wherein the patterned spacers have a viscosity higher than a viscosity of the overcoat layer.

2. The device according to claim 1 , wherein the color filter layers include red, green and blue filters in the plurality of open portions.

3. The device according to claim 2 , wherein the red, green and blue filters overlap the black matrix.

4. The device according to claim 1 , wherein a shape of the plurality of holes includes one of a square shape and a circular shape.

5. The device according to claim 1 , further comprising a common electrode between the color filter layers and the plurality of patterned spacers.

6. The device according to claim 1 , wherein the overcoat layer includes a transparent colorless material.

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 Nov 30, 2004
From: RYU, SANG-CHUL
To: LG PHILIPS LCD CO., LTD.
Reel/Frame 016049/0549 →