Surface Light-Emitting Device and Display Device Using the Same
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United States of America Patent
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Issued Date -
Mar 11, 2010
app pub date -
Sep 9, 2009
filing date -
Sep 10, 2008
priority date (Note) -
Abandoned
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Abstract
A surface light-emitting device is disclosed, in which a plurality of spot light sources are arranged along the side surface of a housing of the device, and the light emitted from the spot light sources located at the end portions of the spot light source sequence emits a lower light flux than the average light flux of the light emitted from the other spot light sources. The spot light source sequence is, for example, an LED array including an alignment of light-emitting diodes (LEDs). The LED array includes two groups of LED elements arranged in a predetermined repetitive pattern from one and the other ends, respectively, of the LED array, and at least an LED emitting low light flux is arranged at a predetermined position in the vicinity of the center of the array. As a result, the requirement for a reduced thickness and a narrower frame can be met, while at the same time producing the white light of uniform chromaticity over the whole light-emitting surface.
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