Illumination – Edge lighted panel – Light guide
Reexamination Certificate
2006-08-15
2008-10-07
O'Shea, Sandra (Department: 2875)
Illumination
Edge lighted panel
Light guide
C362S337000, C362S339000, C385S146000
Reexamination Certificate
active
07431491
ABSTRACT:
A light guide plate includes a light input surface and a light output surface adjoining the light input surface. The light output surface defines a first portion adjacent to the light input surface, a second portion connected with the first portion away from the light input surface. The light guide plate further includes a plurality of prism lenses arranged on the second portion, each prism lens extending along a direction perpendicular to the light input surface, and a plurality of tetrahedral lenses arranged on the first portion of the light output surface, each tetrahedral lens having a side surface located at an imaginary boundary line perpendicularly to the light output surface. A relative height of each tetrahedral lens progressively increases with increasing distance from the light input surface. The present light guide plate and a backlight module using the same can efficiently decrease interference.
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Cranson James W
Hon Hai Precision Industry Co. Ltd.
O'Shea Sandra
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