Method for driving liquid-crystal panel
US4675667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1984 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Sep 11, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method for driving a liquid-crystal display panel of the type in which each of display picture elements arranged in a matrix array is provided with a switching transistor; a common electrode is formed on a first base plate disposed in opposed relationship with a second base plate with display picture element electrodes thereon, a liquid crystal being sandwiched between the first and second base plates; and the liquid crystal is driven by an alternating electric field of two voltage levels given by switching the potential of the common electrode between two potential levels during each display cycle, the potential of the common electrode is either linearly or non-linearly decreased during a display period at the lower voltage level of the two voltage levels and the potential of the common electrode is also either linearly or non-linearly increased during a display period at the higher voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.