Method of fabricating color filter substrate for liquid crystal display device
View Patent ↗A method of fabricating a color filter substrate for a liquid crystal display device includes forming a black matrix on a substrate, adhering a color transcription film to the substrate, disposing a laser head over the color transcription film, repeatedly scanning a laser beam across a surface of the color transcription film using the laser head, removing the color transcription film so that a color filter pattern remains within color filter pattern regions defined by the black matrix, and polishing a surface of the color filter pattern to planarize a surface of the color filter pattern.
1. A method of fabricating a color filter substrate for a liquid crystal display device, comprising steps of:
forming a black matrix on a substrate;
adhering a color transcription film to the substrate;
disposing a laser head over the color transcription film;
repeatedly scanning a laser beam across a surface of the color transcription film using the laser head;
removing the color transcription film so that a color filter pattern remains within color filter pattern regions defined by the black matrix; and
polishing a surface of the color filter pattern to planarize a surface of the color filter pattern.
2. The method according to claim 1 , wherein the step of polishing a surface of the color filter pattern includes a chemical mechanical polishing process.
3. The method according to claim 1 , wherein the step of polishing a surface of the color filter pattern includes a polisher for polishing an entire surface of the color filter pattern.
4. The method according to claim 1 , wherein the step of polishing a surface of the color filter pattern includes a polisher for polishing portions of the surface of the color filter pattern.
5. The method according to claim 1 , wherein a border between an n-th number (n is natural number) scan and an (n−1)-th scan corresponds to a region on the color filter pattern region.
6. The method according to claim 1 , further comprising a step of hardening the color filter pattern before the step of polishing the surface of the color filter pattern.
7. The method according to claim 6 , further comprising a step of forming a common electrode on the surface of the color filter pattern.
8. The method according to claim 1 , wherein the color filter pattern is formed on the black matrix.
9. The method according to claim 1 , wherein the laser head includes a plurality of laser pixels.
10. The method according to claim 9 , wherein each laser pixel has a length along a direction perpendicular to a scan direction within a range of about 5 μm to about 20 μm.
11. The method according to claim 9 , wherein each laser pixel has a width along a direction parallel to the scan direction of about 3 μm.
12. A color filter substrate for a liquid crystal display device made by the method according to claim 1 .