Light guide plate and backlight source having same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsI-THUN LIN, YUNG-LUN HUANG
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Abstract
An exemplary light guide plate includes an light incident surface, an light emitting surface, a number of parallel V-shaped structures, and a Fresnel lens portion. The light incident surface is configured for receiving light beams. The light emitting surface is adjacent to the light incident surface, and configured for emission of the light beams. The V-shaped grooves are defined in the light incident surface and arranged perpendicular to the light emitting surface. The Fresnel lens portion is provided on the light incident surface between each two neighboring V-shaped grooves.
Claims20
A light guide plate comprising:
- a light incident surface configured for receiving light beams;
- a light emitting surface being adjacent to the light incident surface, and configured for emission of the light beams;
- a plurality of parallel V-shaped grooves defined in the light incident surface and arranged perpendicular to the light emitting surface;
- a Fresnel lens portion provided on the light incident surface between each two neighboring V-shaped grooves.
A backlight source comprising:
- a light guide plate comprising:
- a light incident surface configured for receiving light beams,
- a light emitting surface being adjacent to the light incident surface, and configured for emission of the light beams,
- a plurality of parallel V-shaped grooves defined in the light incident surface and arranged perpendicular to the light emitting surface, and
- a Fresnel lens portion provided on the light incident surface between each two neighboring V-shaped grooves;
- and
- a plurality of light sources arranged opposite to the light incident surface of the light guide plate for emitting the light beams.
Dependencies are inferred from the claim text.