Patent ID: 7804561

Claim:
A liquid crystal display device, comprising: a color filter having a red-colored filter segment; a green-colored filter segment; a blue-colored filter segment; and a yellow-colored filter segment, wherein the yellow-colored filter segment is formed by using a yellow-colored composition including a yellow pigment, a pigment dispersant, and a pigment carrier consisting of a transparent resin, a precursor of the resin or a mixture thereof, wherein the transparent resin includes a copolymer of a first compound represented by wherein R 14 denotes a hydrogen atom or a methyl group, R 15 denotes an alkylene group, R 16 denotes a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, which may contain a substituent, and m is an integer of 1 to 15, and a second compound having an ethylenically unsaturated double bond; and a pseudo-white LED light source formed of a blue LED whose surface is coated with a phosphor, wherein the pseudo-white LED light source has spectral properties such that an emission intensity becomes maximum, I 1 , at a wavelength λ 1 , which is within a wavelength range of 430 nm to 485 nm, and the emission intensity has a peak, I 2 , at a wavelength λ 2 , which is within a wavelength range of 530 nm to 580 nm, and a ratio of I 2 /I 1 is between 0.2 and 0.7.