Light guide plate for liquid crystal display
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United States of America Patent
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Mar 28, 2006
Issued Date -
N/A
app pub date -
Aug 11, 2003
filing date -
Nov 8, 2002
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A light guide plate (3) includes a parallelepiped block. The block includes an input surface (31) for receiving light beams irradiated from a light source; two side surfaces perpendicularly adjoining the incident surface; an output surface (32) perpendicularly adjoining the incident surface and the side surfaces; and a bottom surface (33) opposing to the output surface. An array of prisms (34) is integrally formed on the output surface. Each prism is shaped as a square pyramid. All the prisms have a same size and are arranged contiguously with each other. Alternatively, the light guide plate may be a wedge-shaped block (3′). A rectangular array of prisms (34′) is integrally formed on an output surface (32′) thereof. Each prism is shaped as a square pyramid. The prisms are arranged contiguously with each other, and sizes of the prisms gradually decrease from a thick end to a thin end of the block.
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Cited Art Landscape
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