Optical plate and backlight module using the same

Details Optical plate and backlight module using the same Optical plate and backlight module using the same

2011-04-05

2011-04-05

Shea, Sandra L O (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S612000, C362S613000, C362S621000, C362S628000

Reexamination Certificate

active

07918599

ABSTRACT:
An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of enclosing V-shaped protrusions, a plurality of microstructures and a lamp-receiving portion. The light output surface and the bottom surface are on opposite sides of the optical plate. The enclosing V-shaped protrusions are formed on the bottom surface. The microstructures are formed on the light output surface. Each microstructure has circular cross-section taken along a plane parallel to its base surface thereof, a diameter of the circular cross-section decreasing along a direction away from its base surface thereof. The lamp-receiving portion is defined in at least one of the light output surface and the bottom surface. A backlight module using the present optical plate is also provided.

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patent: 1186678 (2005-01-01), None

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