Patent ID: 6280890
Filing Date: 2001-08-28
Classification: G02B,G02F

Abstract:
A color liquid crystal display device comprising:a color filter having a thickness of from 1 to 2.5 .mu.m, and comprising at least one red filter segment, at least one green filter segment, and at least one blue filter segment, said at least one blue filter segment being prepared from a blue-colored composition comprising a colorant carrier selected from the group consisting of a transparent resin, a precursor of a transparent resin and a mixture thereof and a blue colorant dispersed in said colorant carrier and consisting of a copper phthalocyanine pigment and a dioxazine violet pigment wherein a content of said dioxazine violet pigment is from 0.5% to 7% by weight based on the total weight of said blue colorant; anda backlight unit having a three-band fluorescent lamp as a light source;wherein a distribution I(.lambda.) of light intensity of backlight emitted from said backlight unit relative to wavelength satisfies the following conditions:0.35.ltoreq..alpha..ltoreq.0.5where .alpha. is: ##EQU4##wherein .lambda. is wavelength; and x(.lambda.), y(.lambda.), and z(.lambda.) are color matching functions of the XYZ color specification system.