Browse Publications Technical Papers 800536
1980-02-01

Liquid Crystal Display for Automotive Instrument Panel 800536

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.

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