Light guide device, light source device, and liquid crystal disp

Details Light guide device, light source device, and liquid crystal disp Light guide device, light source device, and liquid crystal disp

1995-04-21

1998-08-25

Ngo, John

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

385901, 385115, 385 43, G02B 600

Patent

active

057991260

ABSTRACT:
An object of the present invention is to provide a light guide device which can emit light rays of high directivity with high efficiency irrespective of incident angles, and a light source device using the light guide device which can provide light rays of high directivity with high efficiency irrespective of emitting characteristics of light source lamps, and a liquid crystal display device which is small-sized and can display at very high luminance and is free from color tone changes depending on visual angles over a wide field angle.

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patent: 5462700 (1995-10-01), Beeson et al.
patent: 5475571 (1995-12-01), Dassanayake

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