Panel light source device and back light module for liquid crystal display device
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United States of America Patent
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-
May 17, 2005
Grant Date -
Jan 29, 2004
app pub date -
Aug 27, 2002
filing date -
Jul 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A panel light source device comprises a light source, a U-shaped reflector surrounding the light source, a light guide, and a plurality of metal grid wires. The light guide has an incoming surface facing the light source and an outgoing surface. The light is transmitted into the light guide from the incoming surface and then transmitted out of the light guide from the outgoing surface. The metal grid wires are disposed between the incoming surface and the light source for transmitting the light with a predetermined polarization therethrough and reflecting the rest light therefrom.
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