| 摘要 |
A flat rectangular light guide plate (3) is placed on the side of the rear face of a flat rectangular LCD (1), and four kinds of LEDs having different luminous colors (a red LED (5a), a blue LED (5b), a green LED (5c), and a white LED (5d) are placed on the four side faces of the light guide plate (3) in a one to one relationship between the four kinds of LEDs and the four side faces.
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