IP Library Granted Patent US 7,158,204
Granted Patent B2
US 7,158,204 · App. 10/927,089 · Granted Jan 2, 2007

Method and apparatus of fabricating liquid crystal display panel

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Quick Facts
Patent No.
US 7,158,204
App. No.
10/927,089
Granted
Jan 2, 2007
Kind
B2
Abstract

A method and an apparatus that can fabricate a liquid crystal display panel capable of selectively forming a spacer at a desired area. The inventive apparatus includes a sprayer to spray adhesive spacers over a substrate having at least one metal pattern, a dryer to dry the adhesive spacers, and a blower to selectively remove the adhesive spacers located at a region non-overlapping the metal pattern.

Claims (24)

1. An apparatus for fabricating a liquid crystal display panel comprising:

a sprayer to spray adhesive spacers over a substrate having at least one metal pattern;

a dryer to dry the adhesive spacers; and

a blower to selectively remove the adhesive spacers located at a region non-overlapping the metal pattern.

2. The apparatus according to claim 1 , wherein the dryer uses infrared rays to dry the adhesive spacers at a designated temperature.

3. The apparatus according to claim 2 , wherein the designated temperature is 120° C. to 140° C.

4. The apparatus according to claim 1 , wherein the dryer uses a hot gas to dry the adhesive.

5. The apparatus according to claim 1 , wherein the blower forms the adhesive spacers at a designated location by air streams.

6. The apparatus according to claim 1 , which further comprises a feed box to store the adhesive spacers.

7. The apparatus according to claim 1 , wherein the adhesive spacers comprise a ball spacer material encapsulated by an adhesive material.

8. The apparatus according to claim 7 , wherein the adhesive material comprises a polyacrylic resin.

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

spraying adhesive spacers on a substrate having at least one metal pattern;

drying the sprayed adhesive spacers at a designated temperature; and

selectively removing the adhesive spacers located at a region non-overlapping the metal pattern by using a blower.

10. The method according to claim 9 , wherein the designated temperature is 120° C. to 140° C.

11. The method according to claim 9 , wherein drying the sprayed adhesive spacers at the designated temperature includes drying the adhesive spacers using infrared rays.

12. The method according to claim 9 , wherein the at least one metal pattern is a black matrix.

13. The method according to claim 9 , wherein the at least one metal pattern includes at least one of at least one electrode included in a thin film transistor, a gate line, and a data line.

14. The method according to claim 9 , wherein the adhesive spacers include a ball spacer encapsulated with an adhesive material.

15. The method according to claim 14 , wherein the adhesive material comprises a polyacrylic resin.

16. The method according to claim 9 , wherein drying the sprayed adhesive spacers at the designated temperature includes relatively strongly adhering the adhesive spacers overlapping the metal pattern as compared to the adhesive spacers non-overlapping the metal pattern.

17. The apparatus according to claim 7 , wherein the adhesive spacers adhere more strongly over a metal region due to triboelectric charges.

18. The method according to claim 14 , wherein the adhesive spacers adhere more strongly over a metal region due to triboelectric charges.

Assignments (2)
CHANGE OF NAME Recorded May 21, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 020985/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2004
From: KIM, SEONG HO; SHIN, WOO SUP; HWANG, YEONG GEUN; KIM, TAE MAN
To: LG. PHILIPS LDC CO., LTD.
Reel/Frame 015738/0938 →