IP Library Granted Patent US 7,426,887
Granted Patent B2
US 7,426,887 · App. 11/153,997 · Granted Sep 23, 2008

Apparatus for fabricating color filter of LCD

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,426,887
App. No.
11/153,997
Granted
Sep 23, 2008
Kind
B2
Abstract

An apparatus and method for fabricating a color filter of an LCD is provided. A first roller includes a dry film and a base film that are formed around the first roller in a predetermined order, the dry film is a red, a green, or a blue dry film to form a sub-color filter, the base film protects the dry film. A second roller operates in connection with the first roller and includes the dry film and the base film that are formed around the second roller in a reverse order of the predetermined order. A printing plate forms a predetermined pattern on the dry film formed around the second roller.

Claims (13)

1. An apparatus for fabricating a color filter of a liquid crystal display (LCD), comprising:

a first roller around which a dry film and a base film are formed;

a second roller around which the dry film and a base film are formed; and

a printing plate to form a predetermined pattern on the dry film formed around the second roller,

wherein the dry film is a red, a green, or a blue dry film,

wherein the second roller rolls on the printing plate to form the predetermined pattern.

2. The apparatus according to claim 1 , wherein the dry film and the base film are formed in a first sequence around the first roller.

3. The apparatus according to claim 2 , wherein the dry film and the base film are formed in a second sequence around the second roller, and wherein the second sequence is the reverse of the first sequence.

4. The apparatus according to claim 1 , wherein the first roller and the second roller are connected by the base film and the dry film.

5. The apparatus according to claim 1 , wherein the second roller is rotated by the rotation of the first roller.

6. The apparatus according to claim 1 , wherein after the predetermined pattern is formed on the dry film formed around the second roller, the patterned dry film is printed on a color filter substrate to fabricate a color filter.

7. The apparatus according to claim 6 , wherein the second roller rolls reversely for printing the patterned dry film, compared to forming the predetermined pattern.

8. The apparatus according to claim 1 , wherein the dry film includes a binder and an organic pigment for red, a green, or a blue color.

Assignments (2)
CHANGE OF NAME Recorded May 22, 2008
From: LG PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 020986/0231 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2005
From: EUN, CHONG CHAN; YU, JUN YOUNG
To: LG. PHILIPS LCD CO., LTD.
Reel/Frame 016697/0494 →