Method for driving liquid crystal element employing ferroelectric liquid crystal
USRE33120E · kind E · reissue
2Cited by
4References
42Claims
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Key dates
| Filing date | Apr 1, 1987 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Apr 1, 2007 |
Classification
- Technology area (CPC —)General
Abstract
A method for driving a liquid crystal element including a ferroelectric liquid crystal sandwiched between a pair of substrates having electrodes on their opposite surfaces is disclosed. A pulse voltage for defining the light transmitting state of the liquid crystal element is applied to the ferroelectric liquid crystal. Before and/or after the application of the pulse voltage, the ferroelectric liquid crystal is applied with a voltage signal which renders the average value of voltages applied to the ferroelectric liquid crystal equal to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.