LED ILLUMINATING DEVICE
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United States of America Patent
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Issued Date -
Sep 17, 2009
app pub date -
May 6, 2008
filing date -
Mar 14, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A LED illuminating device includes a substrate, a plurality of blue LEDs mounted on the substrate, and an optical layer, which is kept a predetermined distance from the blue LEDs, for diffusing rays of the blue LEDs and for converting the rays of the blue LEDs to white light, or at least diffusing the rays and converting the rays to white light in the same time. The LED illuminating device may be incorporated in a direct-light backlight module or an edge-light backlight module to provide a light source with higher brightness and more uniform brightness and hue distributions.
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