PLANAR LIGHT SOURCE DEVICE HAVING LIGHT GUIDE PLATE WITH REFLECTIVE MEMBER
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United States of America Patent
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N/A
Issued Date -
Mar 22, 2012
app pub date -
Mar 19, 2010
filing date -
Mar 26, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A white highly-reflective layer is formed at both ends of a light incident edge face of a color-mixing region of a light guide plate to surround an LED. Alternately, an overhung portion may be overhung from both ends of the light incident edge face of the color-mixing region of the light guide plate by a same material thereof to surround the LED, and a white highly-reflective layer is formed at terminals of the overhung portion. Still further, an overhung portion may be overhung from both ends of the light incident edge face of the color-mixing region of the light guide plate by the same material thereof to surround the LED, and a specular highly-reflective layer made of metal such as silver or aluminum is formed at terminals of the overhung portion.
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Cited Art Landscape
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