Patent ID: 6826001
Filing Date: 2004-11-30
Classification: C09B,G02B

Abstract:
A color filter comprising a transparent substrate and red pixel portions, green pixel portions, and blue pixel portions formed on said transparent substrate, wherein said green pixel portions(1) contain a halogenated metal phthalocyanine pigment represented by the following formula 1: â€ƒwherein X1 to X16 represent a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom; four X's bonded to one benzene ring may be the same or different; among X1 to X16 bonded to 4 benzene rings, eight to sixteen X's represent a chlorine atom, a bromine atom, or an iodine atom; M represents a metal center and is a metal selected from the group consisting of Si, Sc, Ti, Mg, Fe, Co, Ni, Zn, Ge, Y, Zr, Nb, Sn, and Pb; Y bonded to the metal center M is a monovalent atomic group selected from the group consisting of halogen atoms of fluorine, chlorine, bromine, and iodine atoms, oxygen atom, hydroxyl group (â€”OH), and sulfonic acid group (â€”SO3H); m represents the number of Y bonded to the metal center M and is an integer of 0 to 2; any one of a halogen atom, hydroxyl group, and sulfonic acid group is bonded to the metal center when the metal center is a trivalent metal, and one oxygen atom or any two of halogen atoms, hydroxyl groups, and sulfonic acid groups, which may be the same or different, are bonded to the metal center when the metal center is a tetravalent metal; and (2) exhibit maximum transmittance at a wavelength within a range from 520 nm to 590 nm with respect to the transmission spectra of the entire range of visible light.