OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME
First Claim
1. An optical plate comprising:
- at least one transparent plate unit having;
a light output surface,a bottom surface opposite to the light output surface;
a plurality of microstructures formed on the bottom surface, wherein each microstructure comprises at least four side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the base surface of the microstructure;
a diffusion layer formed on the light output surface; and
at least one lamp-receiving portion defined in the bottom surface.
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Accused Products
Abstract
An exemplary optical plate (20) includes a transparent plate unit. The transparent plate unit includes a light output surface (202), a bottom surface (203), a plurality of microstructures (206), a diffusion layer (205), and a lamp-receiving portion (204). The bottom surface is opposite to the light output surface. The microstructures are formed on the bottom surface. Each microstructure includes four side surfaces connected with each other. A transverse width of each side surface decreases along a direction away from the base surface of the microstructure. The diffusion layer is formed on the light output surface. The lamp-receiving portion is defined in the bottom surface. A backlight module (200) using the present optical plate is also provided.
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Citations
20 Claims
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1. An optical plate comprising:
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at least one transparent plate unit having; a light output surface, a bottom surface opposite to the light output surface; a plurality of microstructures formed on the bottom surface, wherein each microstructure comprises at least four side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the base surface of the microstructure; a diffusion layer formed on the light output surface; and at least one lamp-receiving portion defined in the bottom surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A backlight module comprising:
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a housing having a base and a plurality of sidewalls extending from a periphery of the base, the base and the sidewalls cooperatively forming an opening; at least one point light source disposed on the base, each point light source having a light-emitting portion; at least one reflective member is positioned above the top of the light-emitting portion; and an optical plate positioned in the housing, the optical plate including at least one transparent plate unit having; a light output surface, a bottom surface opposite to the light output surface; a plurality of microstructures formed on the bottom surface, wherein each microstructure comprises at least four side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the base surface of the microstructure; a diffusion layer formed on the light output surface; and at least one lamp-receiving portion defined in the bottom surface;
wherein the light-emitting portion of the at least one point light source is inserted in the lamp-receiving portion correspondingly, the diffusion layer facing the opening of the housing. - View Dependent Claims (17, 18, 19, 20)
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Specification