Illumination device and display apparatus including same

Details Illumination device and display apparatus including same Illumination device and display apparatus including same

1995-10-20

1999-07-27

Nguyen, Tiep H.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

362 29, 362280, G02F 11335, G01D 1128, F21V 2128

Patent

active

059299517

ABSTRACT:
A display apparatus is constituted by a planar display device and a planar illumination device therefor. A lowering in light quantity at a periphery of the planar illumination device is prevented by inserting a reflection member, such as a reflection frame, having an inside reflection surface along the periphery of the illumination device, or a combination of a scattering means and a transparent sheet member between the display device and the illumination device. A plurality of the display apparatus may be combined to allow an associate movement thereof so as to constitute a composite display apparatus, such as a head-mount display.

REFERENCES:
patent: Re33987 (1992-07-01), Suzawa
patent: 4765718 (1988-08-01), Henkes
patent: 4798448 (1989-01-01), Van Raalte
patent: 5567042 (1996-10-01), Farchmin et al.
patent: 5648827 (1997-07-01), Shaw

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