LCD device including an illumination device having a polarized l

Details LCD device including an illumination device having a polarized l LCD device including an illumination device having a polarized l

1995-10-19

1996-12-24

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 9, 349 96, 349 64, 349113, G02F 11335

Patent

active

055878164

ABSTRACT:
An illumination device for a direct viewing type display element comprising a flat light guide; a light source set such that light is incident on a side portion of said flat light guide; a polarized light separating flat set on a first side of a light emitting side of the flat light guide for transmitting a p polarized light component and reflecting at least a portion of an s polarized light component with respect to a light ray substantially having a predetermined direction of incidence; and a light reflecting sheet disposed on a second side opposite to said light emitting side of the flat light guide in parallel with the light emitting site.

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"Polarized Backlight for Liquid Crystal Display", vol. 33, No. 1B (Jun. 1990) IBM Technical Disclosure Bulletin, pp. 143-144.
Patent Abstracts of Japan, vol. 016, No. 418 (P-1413), Sep. 3, 1992, JP-A-04 141 603, May 15, 1992.
Patent Abstracts of Japan, vol. 016, No. 506 (P-1440), Oct. 20, 1992, JP-A-04 184 429, Jul. 1, 1992.
Patent Abstracts of Japan, vol. 014, No. 129 (P-1020), Mar. 12, 1990, JP-A 02 000 017, Jan. 5, 1990.

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