Liquid crystal apparatus that changes a voltage level of a correction pulse based on a detected temperature
US5903251A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal apparatus includes a liquid crystal device formed by a pair of substrates having thereon a group of scanning electrodes and a group of data electrodes intersecting the scanning electrodes so as to form an electrode matrix, and a liquid crystal disposed between the substrates so as to form a pixel at each intersection of the scanning electrodes and the data electrodes; and temperature-detection means for detecting a temperature of the liquid crystal device. The liquid crystal device is driven by applying a scanning signal comprising a clear pulse, a write pulse and a correction pulse to the scanning electrodes and for applying data signals to the data electrodes in synchronism with the scanning signal, while changing a voltage level of the correction pulse based on temperature data from the temperature-detection means. As a result, the liquid crystal device can effect a stable display over the entire area even if it has a temperature distribution therealong.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.