| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a direct backlight device in which a light source is placed behind a light guide plate, light extraction efficiency is enhanced and deterioration of brightness is controlled or prevented. <P>SOLUTION: The backlight device which comprises a plurality of light emitting diodes emitting any of red light, green light or blue light has a configuration in which a part of light emitted by the LEDs is led to a light guide member to blend colors. <P>COPYRIGHT: (C)2007,JPO&INPIT |
