Liquid crystal apparatus
US6222517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jul 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal device having a matrix of pixels formed at intersections of scanning electrodes and data electrodes with e.g., a chiral smectic liquid crystal having at least two stable states, is driven at a high speed by simultaneously selecting M scanning electrodes (M being an integer of at least 2), and applying scanning signals to the simultaneously selected scanning electrodes and data signal to the data electrodes so as to apply writing pulses for determining states of pixels to pixels at the intersections of the selected scanning electrodes and the data electrodes and so that each pixel on the selected scanning electrodes is supplied with writing pulse(s) of a writing polarity having a time-integrated voltage value which is larger than that of writing pulse(s) of an anti-writing polarity, if any.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.