Light guide plate capable of controlling light-emitting angle and liquid crystal display therewith
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United States of America Patent
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N/A
Issued Date -
Oct 16, 2003
app pub date -
Feb 21, 2003
filing date -
Apr 10, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A light guide plate capable of controlling light-emitting angle. The light guide plate includes a plurality of recesses or protrusions, each recess or protrusion including a main axis, a circular plane perpendicular to the main axis, an arc lateral plane formed by an arc from a first included angle to a second included angle in respect to the main axis at a predetermined radius surrounding the main axis, wherein an edge of the arc lateral plane is connected to an edge of the circular plane, and a reflective film formed over the circular plane and the arc lateral plane. The light-emitting angle of the light guide plate is regulated by the first and second included angles, thereby increasing view angle of a liquid crystal display device.
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