| 摘要 |
PROBLEM TO BE SOLVED: To provide a backlight for color liquid crystal display unit that can raise emission brightness, without reducing the lifetime of a rare-gas discharge tube. SOLUTION: A red (R) source 4 having a rare-gas discharge tube was disposed at the nearest to a light guide plate 2 and is also made as a tube of diameter larger than those of other light sources 5, 6. |
