Color filter and black matrix thereof
A color filter and a black matrix thereof are provided. The black matrix disposed on the substrate comprises a frame that defines a pixel area for accommodating color filter inks when performing the ink-jet process, and a spacer disposed in each of the pixels for preventing inks from overflowing to adjacent pixel areas and improving the flatness of the formed color filter layer.
1. A color filter, at least comprising:
a substrate including a plurality of pixel areas defined thereon;
at least one frame being disposed in correspondence to one of the pixel areas on the substrate to define a receiving space with the substrate;
at least one spacer being disposed in the receiving space; and
a color filter layer being disposed in the receiving space.
2. The color filter as claimed in claim 1 , wherein the frame includes two parallel first side-walls and two parallel second side-walls being adapted to define the receiving space.
3. The color filter as claimed in claim 2 , wherein the at least one spacer comprises a plurality of spacers.
4. The color filter as claimed in claim 3 , wherein the plurality of spacers are equidistantly arranged corresponding to a symmetric center of the pixel.
5. The color filter as claimed in claim 4 , wherein the plurality of spacers are at least partially arranged in a first linearity with a first distance corresponding to the two parallel first side-walls.
6. The color filter as claimed in claim 4 , wherein the plurality of spacers are at least partially arranged in a second linearity with a second distance corresponding to the two parallel second side-walls.
7. The color filter as claimed in claim 4 , wherein the plurality of spacers are at least partially arranged in a first linearity with a first distance corresponding to the two parallel first side-walls, and at least partially arranged in a second linearity with a second distance corresponding to the two parallel second side-walls.
8. The color filter as claimed in claim 7 , wherein the first distance and the second distance are substantially equal.
9. The color filter as claimed in claim 4 , wherein the plurality of spacers comprises columns.
10. The color filter as claimed in claim 9 , wherein each of the columns has a cross-section selected from a group comprising a square, a circle, a triangle, a polygon and a combination thereof.
11. The color filter as claimed in claim 1 , wherein the top surface height of at least one spacer is substantially equivalent to the top surface height of the frame.
12. The color filter as claimed in claim 2 , wherein the inner surfaces of the first and second side-walls are with a wavy contour in continuous.
13. The color filter as claimed in claim 12 , wherein the wavy contour comprises a plurality of concave portions and a plurality of convex portions being formed alternately.
14. The color filter as claimed in claim 2 , wherein the top and inner surfaces of the first and second side-walls are hydrophobic.
15. The color filter as claimed in claim 1 , wherein the substrate has an upper surface which is hydrophilic.
16. The color filter as claimed in claim 1 , wherein the color filter layer is selected from a group comprising red ink, blue ink and green ink and a combination thereof.
17. The color filter as claimed in claim 1 , further comprising a black matrix being adapted to define the at least one frame.
18. A black matrix for a color filter, the color filter having a substrate including a plurality of pixel areas defined thereon, the black matrix comprising:
a plurality of black matrix units, being disposed on the substrate and corresponding to the plurality of pixel areas respectively, wherein each of the black matrix units comprises:
a frame, defining a receiving space with the substrate for filling a color filter layer; and
at least one spacer being disposed in the receiving space defined by the frame.
19. The black matrix as claimed in claim 18 , wherein the frame includes two parallel first side-walls and two parallel second side-walls being adapted to define the receiving space.
20. The black matrix as claimed in claim 19 , wherein each of the plurality of black matrix units comprises a plurality of spacers.
21. The black matrix as claimed in claim 20 , wherein the plurality of spacers are equidistantly arranged corresponding to a symmetric center.
22. The black matrix as claimed in claim 21 , wherein the plurality of spacers are at least partially arranged in a first linearity with a first distance corresponding to the two parallel first side-walls, and at least partially arranged in a second linearity with a second distance corresponding to the two parallel second side-walls.