Illumination – Edge lighted panel – Light modifier for edge lit light source
Reexamination Certificate
2008-10-17
2010-02-16
Ton, Anabel M (Department: 2875)
Illumination
Edge lighted panel
Light modifier for edge lit light source
C362S608000, C362S609000, C362S294000, C362S218000, C362S097200
Reexamination Certificate
active
07661865
ABSTRACT:
To provide a liquid crystal display backlight and a liquid crystal display device, which can improve the heat dissipating effect, can reduce the thickness and weight of the device. The liquid crystal display backlight includes: an emission light guide plate for emitting illuminating light for a liquid crystal display panel from one face; one and other mixed-color light guides mounted on a same plane of other face of the emission light guide plate via a spacer; a heat-dissipating spatial area provided between the mixed-color light guide plates; light-emitting devices disposed within the heat-dissipating spatial area; and reflectors for guiding output light, propagated inside each mixed-color light guide plate, towards corresponding end faces of the emission light guide plate from outside end face of each mixed-color light guide plate. A holding plate for holding the light-emitting devices is provided, facing each mixed-color light guide plate with an airing gap provided therebetween.
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Martynov et al., “43.3: High-efficiency slim LED backlight system with mixing light guide”, SID 2003 Digest, pp. 1259-1261.
NEC LCD Technologies Ltd.
Ton Anabel M
Young & Thompson
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