| 摘要 |
A light guide plate with a light emitting surface, a bottom surface and at least one light incident surface being connected with the light emitting surface and the bottom surface is provided. The light guide plate is a superposition of a plurality of layers substantially parallel to the light emitting surface. A plurality of stripe-shaped light-controlling structures are formed on the light emitting surface and a plurality of light-reflecting structures are formed on the bottom surface. The light guide plate provides a surface light source with high brightness and excellent uniformity in a direction perpendicular to the light emitting surface.
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