Large Aperture Polarized Light Source and Novel Liquid Crystal Display Operating Modes
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概要
- 論文の詳細を見る
A wide aperture liquid crystal polarized light source (LC-PLS) is presented which converts unpolarized-into circular-and/or linearly polarized light with an efficiency better than 80%. Moreover, new operating modes for electro-optical field-effects on which liquid crystal displays (LCDs) are based are shown to increase the transmission of twisted nematic (TN)-LCDs by a factor of two. Besides, a 25% shift of the TN-LCD transmission-voltage characteristics towards lower voltages is achieved. One of the new, reflective LCD-operating modes is shown to avoid light absorption by thin film transistor structures in actively addressed LCD-projection systems. Within the bandpass region of the cholesteric liquid crystal filters the combination of LC-PLS with appropriate LCD-operating mode is shown to increase the transmission of LCD-projection systems three to five times compared with conventional LCD-projectors.
- 社団法人応用物理学会の論文
- 1990-04-20
著者
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Schmitt K.
Rolic Research Ltd.
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Schadt M.
ROLIC Research Ltd.
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Schadt M.
F. Hoffmann-laroche Ltd Central Research Units
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Barnik M.
Organic Intermediates And Dye Institute Niopik
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FUNFSCHILLING J.
F. Hoffmann-LaRoche Ltd, Central Research Units
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Funfschilling J.
Rolic Research Ltd.
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BELAYEV S.
Organic Intermediates and Dye Institute NIOPIK
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MALIMONEKO N.
Organic Intermediates and Dye Institute NIOPIK
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SCHMITT K.
F. Hoffmann-La Roche Ltd, Central Research
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Funfschilling J.
F. Hoffmann-laroche Ltd Central Research Units
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