Patent ID: 9013658
Filing Date: 2015-04-21
Classification: G02B,G02F,Y10S

Abstract:
1. A method of manufacturing a reflective color filter, the method comprising: forming colloidal particles having a charged surface; forming colloidal crystals capable of reflecting a first color by controlling distances between the colloidal particles; the first color corresponding to one of red, blue and green, adding a monomer mixture for photopolymerization to the colloidal crystals capable of reflecting the first color; coating the colloidal crystals capable of reflecting the first color and the monomer mixture for photopolymerization on a substrate; forming a first photonic crystal composite capable of reflecting the first color by exposing radiation to the colloidal crystals capable of reflecting the first color and the monomer mixture for; changing a first portion of the first photonic crystal composite to a second photonic crystal composite capable of reflecting a second color, the second color being different than the first color; the second color corresponding to a different one of red, blue and green, changing one of a second portion of the first photonic crystal composite and a part of the second photonic crystal composite to a third photonic crystal composite that is capable of reflecting a third color, wherein the distances between the colloidal particles in at least one of the first photonic crystal composite, the second photonic crystal composite, and the third photonic crystal composite is controlled by expanding the colloidal particles by adding a solvent, or contracting the colloidal particles by evaporating the solvent, the forming the first photonic crystal composite includes forming the first photonic crystal composite on first to third pixel regions of the substrate; the changing the first portion of the first photonic crystal composite to the second crystal composite includes,