| 摘要 |
A backlight system ( 300 ) includes a light guide plate ( 3024 ), a reflection plate ( 3023 ), a light source ( 3021 ) disposed at one side of the light guide plate, a diffusion plate ( 3025 ) and a reflection polarizer ( 3027 ), which allows light polarized in one certain direction to pass, and reflects light polarized in a direction perpendicular to said one certain direction. The diffusion plate, the light guide plate, the diffusion plate, and the reflection polarizer are stacked up one on top of the other. A plurality of prisms ( 11 ) are disposed on a surface of the diffusion plate, thereby defining a plurality of V-shaped grooves (not labeled).
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