IP Library Granted Patent US 7,489,375
Granted Patent B2
US 7,489,375 · App. 11/644,983 · Granted Feb 10, 2009

Liquid crystal display device and method of fabricating the same

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Quick Facts
Patent No.
US 7,489,375
App. No.
11/644,983
Granted
Feb 10, 2009
Kind
B2
Abstract

An LCD device and a method of fabricating the same is disclosed, which can prevent transmitting light from being mixed in adjacent pixels, the LCD device including: a plurality of etching patterns formed in an insulation substrate; a plurality of color filter patterns of red, green and blue colors formed in the respective etching patterns; a black matrix pattern formed on the insulation substrate between each of the color filter patterns; and an overcoat layer formed on an entire surface of the insulation substrate including the black matrix pattern.

Claims (22)

1. A liquid crystal display device comprising:

a plurality of etching patterns in an insulation substrate;

a plurality of color filter patterns of red, green and blue colors in the respective etching patterns; and

a black matrix pattern on the insulation substrate between each of the color filter patterns.

2. The liquid crystal display device of claim 1 , further comprising a refractive lens inside the etching pattern of the insulation substrate.

3. The liquid crystal display device of claim 2 , wherein the refractive lens is a convex lens.

4. The liquid crystal display device of claim 2 , wherein the refractive lens is formed of diamond like carbon (DLC).

5. The liquid crystal display device of claim 1 , wherein the etching pattern of the insulation substrate includes a rounded bottom.

6. The liquid crystal display device of claim 1 , wherein the color filter pattern is formed in a shape of a convex lens.

7. The liquid crystal display device of claim 1 , further comprising a common electrode on the overcoat layer.

8. The liquid crystal display device of claim 1 , further comprising an overcoat layer on an entire surface of the insulation substrate including the black matrix pattern.

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

forming a black matrix pattern on an insulation substrate;

forming an etching pattern in the insulation substrate by etching the insulation substrate using the black matrix pattern as a mask; and

forming a color filter pattern in the etching pattern of the insulation substrate.

10. The method of claim 9 , wherein the etching pattern in the insulation substrate has a curved bottom.

11. The method of claim 9 , wherein the etching pattern is formed by a wet-etching method.

12. The method of claim 9 , further comprising forming a refractive lens in the etching pattern of the insulation substrate.

13. The method of claim 12 , wherein the material-deposition rates in the flat portion of the refractive lens is higher than that of the inclined portion of the refractive lens.

14. The method of claim 12 , wherein the refractive lens is formed of diamond like carbon (DLC).

15. The method of claim 9 , further comprising forming a common electrode on the overcoat layer.

16. The method of claim 9 , further comprising forming an overcoat layer on the insulation substrate.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021754/0045 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 26, 2006
From: LEE, HYE-SUN; OH, JAE-YOUNG
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 018760/0487 →