A liquid-crystal display using the twisted nematic mode was developed for an automotive instrument panel. A low viscosity, quick response liquid crystal of wide nematic range (−30 to 85°C) was designed with the aid of the molecular theory for viscosity of liquid crystals. A liquid crystal less than 20 cp at 25°C with wide mesomorphic range (−30 to 85°C) was developed. A display with this material gave quick response, about one and one-half seconds at −30°C.For the most uniform response and widest viewing angle, a liquid crystal molecular alignment of low tilt angle was developed. A simple rubbing alignment technique was used which is compatible to glass sealing.A polarizer resistive to high temperature and high humidity was applied. The display can be operated with good performance and high reliability.
Liquid Crystal Display for Automotive Instrument Panel
Sae Technical Papers
1980 Automotive Engineering Congress and Exposition ; 1980
1980-02-01
Conference paper
English
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