Substrate for a liquid crystal display and a fabricating method thereof
A substrate for a liquid crystal display includes a black matrix on a substrate having first, second, third and fourth sub-pixel regions, wherein the black matrix includes first, second, third and fourth openings corresponding to the first, second, third and fourth sub-pixel regions, respectively, first, second and third color filter patterns corresponding to the first, second and third openings, respectively, a first planarization layer on the first, second and third color filter patterns and filling the fourth opening, and a second planarization layer on the first planarization layer.
1. A substrate for a liquid crystal display (LCD), comprising:
a black matrix on a substrate having first, second, third and fourth sub-pixel regions, wherein the black matrix includes first, second, third and fourth openings corresponding to the first, second, third and fourth sub-pixel regions, respectively;
first, second and third color filter patterns corresponding to the first, second and third openings, respectively;
a first planarization layer on the first, second and third color filter patterns and filling the fourth opening, wherein a surface of the first planarization layer corresponding to the fourth opening is lower than a surface of the first planarization layer corresponding to the first, second and third openings; and
a second planarization layer on the first planarization layer, wherein a top surface of the second planarization layer corresponding to the fourth opening is on a level with a top surface of the second planarization layer corresponding to the first, second and third openings.
2. The substrate according to claim 1 , wherein the first and second planarization layers are made of transparent organic material.
3. The substrate according to claim 2 , wherein the transparent organic material includes acrylic.
4. A fabricating method of a substrate for a liquid crystal display (LCD), comprising:
forming a black matrix on a substrate having first, second, third and fourth sub-pixel regions, wherein the black matrix includes first, second, third and fourth openings corresponding to the first, second, third and fourth sub-pixel regions, respectively;
forming first, second and third color filter patterns corresponding to the first, second and third openings, respectively;
forming a first planarization layer on the first, second and third color filter patterns, the first planarization layer filling the fourth opening, wherein a surface of the first planarization layer corresponding to the fourth opening is lower than a surface of the first planarization layer corresponding to the first, second and third openings; and
forming a second planarization layer on the first planarization layer, wherein a top surface of the second planarization layer corresponding to the fourth opening is on a level with a top surface of the second planarization layer corresponding to the first, second and third openings.
5. The method according to claim 4 , wherein the first and second planarization layers are made of transparent organic material.
6. The method according to claim 5 , wherein the transparent organic material includes acrylic.