Method of fabricating black matrices of color filter
View Patent ↗A method of fabricating black matrices of a color filter. The method includes forming a light-shielding layer of an organic material, which is repulsive to ink, on a transparent substrate, forming the black matrices by patterning the light-shielding layer, and hard-baking the black matrices to maintain a plurality of pores which are formed in the black matrices in the forming of the light-shielding layer.
1. A method of fabricating black matrices of a color filter, the method comprising:
forming a light-shielding layer of an organic material repulsive to an ink on a transparent substrate;
forming the black matrices by patterning the light-shielding layer;
pre hard-baking the black matrices to maintain a plurality of pores which are irregularly formed in the black matrices in the forming of the light-shielding layer;
injecting color ink to fill spaces partitioned by the black matrices; and
hard-baking the black matrices and the color ink to completely dry the color ink which permeates the plurality of pores formed in the black matrices,
wherein the time of the pre hard baking is shorter than the time of the complete hard baking.
2. The method of claim 1 , wherein the pre hard-baking is performed for 10 to 15 minutes at a temperature above about 200° C.
3. The method of claim 1 , wherein the complete hard-baking is performed for 30 to 40 minutes at a temperature above about 200° C.