Liquid crystal display and light source device used for the same
AssigneeNEC LCD Technologies, Ltd.
InventorsFumihiko Fujishiro, Tsutomu Kanatsu, Fumio Hasegawa, Shin-Ichirou Ono, Hirokazu Fukuyoshi
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Abstract
A light emission surface having a substantially single surface in a liquid crystal display 1 is designed so as to be opposite to a rear of a liquid crystal panel 2 or a rear of an optical member 5 through an air layer. Thus, it is possible to provide a liquid crystal display that can prevent a heat accumulation in a liquid crystal panel without any drop of brightness, and a light source device used in the liquid crystal display.
Claims25
A liquid crystal display comprising:
- a light source device which has a flat light emission surface from which a light is emitted;
- a liquid crystal panel which is arranged to be opposite to said light emission surface of said light source device;
- and
- a spacing member which is formed between said light emission surface of said light source device and said liquid crystal panel to have a frame structure, and thermally separates said light source device and said liquid crystal panel.
A light source device having a straight fall type structure, comprising:
- a light source;
- a lamp house which houses said light source and has a light emission surface from which a light from said light source is emitted;
- and
- a protrusion which is arranged in a circumference edge portion on said light emission surface to have a frame structure,
- wherein said protrusion has an opening portion in a center and a penetration hole which extends in a parallel to said light emission surface to penetrate said protrusion.
A light source device having a side light type structure, comprising:
- a light source:
- a light guide member through which a light form said light source is emitted;
- and
- a protrusion which is arranged in a circumference edge portion on said light guide member to have a frame structure,
- wherein said protrusion has an opening portion in a center and a penetration hole which extends in a parallel to said light guide member to penetrate said protrusion.
Dependencies are inferred from the claim text.