Antiferroelectric liquid crystal display element exhibiting a precursor tilt phenomenon
US5631752A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1993 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Dec 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Pixel electrodes and active elements for supplying data signals to the pixel electrodes in accordance with control signals are formed on one of a pair of opposing transparent substrates, and a counter electrode is formed on the other substrate. An antiferroelectric liquid crystal having a small difference between a voltage for changing liquid crystal molecules from the first or second ferroelectric phase to an antiferroelectric phase as an intermediate aligned state between the first and second ferroelectric phase and a voltage for changing the liquid crystal molecules from the antiferroelectric phase to the first or second ferroelectric phase and having optical characteristics changing along a curve in accordance with the applied voltage is sealed between the substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.