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Liquid crystal display having a single polarizer and no retardation film compensation

Authors Kwok, Hoi-Sing
Yu, Fei-Hong
Issue Date 1999-07-20
Source US Patent , 5,926,245. Washington, DC: US Patent and Trademark Office, 1999.
Summary The invention provides a reflective liquid crystal display which consists of just an input polarizer, the liquid crystal cell and a rear reflector which can be placed inside or outside of the liquid crystal cell. There is no rear polarizer and no retardation film compensation. The invention is capable of producing a high contrast, low chromatic dispersion display. Depending on the twist angle chosen for the liquid crystal cell, the display can be used in direct view or in a projection type display. The display can also be driven in an active matrix mode or in a passive matrix multiplexed drive mode. A full numerical simulation which takes into account the liquid crystal director deformation under the application of an electric field was used to optimize such displays.
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Language English
Format Patent
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