Patent ID: 7474366

Claim:
A color liquid crystal display device, comprising: a transmissive color liquid crystal display panel that comprises: a color filter divided into segments, wherein each segment corresponds to a pixel and comprises a red filter, a green filter, and a blue filter; and a liquid crystal display backlight light source which emits white light and illuminates said color liquid crystal display panel from a rear side, wherein said backlight light source includes a fluorescent lamp in which a chromaticity point of the white light emitted is in the vicinity of (x, y)=(0.275, 0.275) in an xy chromaticity diagram of an XYZ color system, and wherein each of said red filter, said green filter, and said blue filter selects a wavelength to transmit respective red light, green light and blue light, and at least said blue filter has a spectroscopic characteristic with a peak wavelength that is 420 nm or more and 455 nm or less and a half maximum full-width that is 110 nm or less.