Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Patent
1996-11-20
2000-08-15
Dang, Hung Xuan
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
349 96, 349117, 362 31, 385901, G02F 11335, F21V 914
Patent
active
061044547
ABSTRACT:
A backlight device having a light source, a waveguide provided close to the light source, this waveguide being a wedge-shaped waveguide so constructed that the incident light from the light source can be greatly changed in its direction and made to exit therefrom, a polarizing beam splitter provided on the light-exiting side of the wedge-shaped waveguide, and a light converter disposed on the light-exiting side of the polarizing beam splitter. This backlight device is used for liquid crystal displays.
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Funahata Katsuyuki
Hiyama Ikuo
Kondo Katsumi
Dang Hung Xuan
Duong Tai V.
Hitachi Ltd
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