| 摘要 |
PROBLEM TO BE SOLVED: To provide a backlight by which color reproducibility of a liquid crystal display device can be enhanced. SOLUTION: The backlight comprises a band pass filter 4 for transmitting blue light having a center wavelength of 400 to 440 nm, green light having a center wavelength of 520 to 530 nm and red light having a center wavelength of 620 to 640 nm, and a light source 1 for emitting light at least in the above wavelength bands toward the band pass filter. COPYRIGHT: (C)2004,JPO
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