Patent ID: 8557333
Filing Date: 2013-10-15
Classification: H01L

Abstract:
1. A method of manufacturing a color filter substrate, comprising: providing a substrate; forming a first resist layer of a first color on the substrate; positioning a first mask having a first opening over the first resist layer; forming a first color filter by photolithographic patterning of the first resist layer using the first mask; forming a second resist layer of a second color on the first color filter and the substrate; positioning a second mask having a second opening over the second resist layer; and forming a second color filter by photolithographic patterning of the second resist layer using the second mask, wherein the first mask is positioned so that an area of the first resist layer larger than an area of the first opening is exposed during the photolithographic patterning of the first resist layer so that the first color filter has a tapered end portion, the second mask is positioned so that an area of the second resist layer larger than an area of the second opening is exposed during the photolithographic patterning of the second resist layer so that the second color filter has a tapered end portion that is on the tapered end portion of the first color filter, and a vertical distance between a top of the tapered end portion of the second color filter at a peak height position and a top of the first color filter at a position that is a vertical projection of the peak height position is smaller than a thickness of the second color filter at an area where the second color filter does not cover the first color filter.