Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-05-24
1999-05-04
Nguyen, Tiep H.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349112, 349 96, G02F 11335
Patent
active
058995510
ABSTRACT:
Display device (1) comprising an illumination system (3) having a radiation source (17; 31, 35) for supplying a radiation beam. The display device (1) also comprises a diffusing display panel (5). This panel (5) consists of an optically active diffusing medium (7) which is switchable between a transparent, polarization-maintaining state and a diffusing, depolarizing state for the radiation beam. The medium (7) is present between a first polarizer (9) having a first state of polarization and a second polarizer (11) having a second, complementary state of polarization. At least the first polarizer (9) is a reflecting polarizer and polarization-converting means (10) are arranged at a side of the first polarizer (9) facing away from the display panel (5).
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Bergman Anthonie H.
Neijzen Jacobus H. M.
Faller F. Brice
Nguyen Tiep H.
U.S. Philips Corporation
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