| 摘要 |
PROBLEM TO BE SOLVED: To provide a backlight unit which is employed in a display device having a main screen and a sub screen. SOLUTION: Disclosed is the backlight unit of the display device having the main screen and sub screen. The backlight unit comprises a first light-emitting unit and a second light-emitting unit. When the display device uses the sub screen, the first light-emitting unit provides a first light to the sub screen. When the display device uses the main screen, the first and the second light-emitting units respectively emit a second light and a third light, and a first aggregate light comprising the second light and the third light is provided to the main screen as well. COPYRIGHT: (C)2005,JPO&NCIPI
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