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US 2007/0165394 A1Published application
Optical sheet and backlight module using the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorSHAO-HAN CHANG
Life of this patent
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Abstract
An optical sheet (21) includes a main body (210). The main body has a light incident surface (211) and a light emitting surface (212) positioned opposite to the light incident surface. A number of first valleys (213) and second valleys (214) are formed on the light emitting surface, and the second valleys intersect with the first valleys.
Claims20
An optical sheet, comprising:
- a main body including:
- a light incident surface;
- a light emitting surface positioned opposite to the light incident surface;
- and
- a plurality of first valleys and second valleys formed on the light emitting surface, and the second valleys intersecting with the first valleys.
2 more elements
A backlight module, comprising:
- a light source;
- and
- an optical sheet, the optical sheet including:
- a main body having:
- a light incident surface, the light source being positioned adjacent to the light incident surface;
- a light emitting surface positioned opposite to the light incident surface;
- and
- a plurality of first valleys and second valleys formed on the light emitting surface, and the second valleys intersecting with the first valleys.
5 more elements
A light guide plate comprising:
- a light incident surface;
- a light emitting surface positioned opposite to the light incident surface, the light emitting surface being oriented substantially parallel to the light incident surface;
- and
- an array of protrusions arranged on a whole area of the light emitting surface, each protrusion extending perpendicularly and outwardly from the light emitting surface, and having a cross section decreasing with increasing height from the light emitting surface toward a top of the each protrusion.
1 more element
Dependencies are inferred from the claim text.