Method of driving liquid crystal matrix display device
US3976362A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1974 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Oct 15, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3622
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method of driving with a one-line-at-a-time scanning system a liquid crystal matrix display device in which the picture elements are defined by liquid crystal cell portions formed between the scanning and the signal electrodes arranged in the form of a matrix, the amplitude of the voltage applied to non-selected cells along a selected scanning electrode is made different from the amplitude of the voltage applied to non-selected cells along a selected signal electrode; the amplitude of the voltage (bias voltage) applied to non-selected cells along the selected signal electrode is made equal to the amplitude of the voltage applied to the remaining non-selected cells; and the bias voltage is determined depending on the number of the scanning electrodes, so that the operation margin is further improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.