Patent ID: 6383694
Filing Date: 2002-05-07
Classification: G02B,G02F

Abstract:
A method of manufacturing a color filter for a reflective liquid crystal display, comprising the following steps of:(a) coating a positive photoresist layer on a reflective substrate; (b) exposing the photoresist layer to a light via a mask having a pixel pattern such that at least three exposed regions of different exposed energies are formed in the photoresist layer; (c) removing the photoresist layer on one of the existing exposed regions having a largest exposed energy by the use of developer solution so as to expose a surface of the reflective substrate corresponding to the removed region; (d) electrodepositing a paint having a selected color on the exposed surface of the reflective substrate so as to form a color filter layer having the same selected color; (e) exposing the entire photoresist layer to a light; (f) repeating steps (c) to (e) until a color filter layer consisting of all desired colors is obtained, wherein the concentration of the developer solution is constant every time in step (c); and (g) etching the reflective substrate so as to form an array of reflective electrodes.