Thin-film EL display panel drive
US4935671A · kind A · utility
6Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1988 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Aug 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0275
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
When driving a thin-film EL display panel having groups of two electrodes on opposing sides of a thin-film EL layer, a voltage is applied so that the polarity of the AC pulse applied to the intersection (picture element) of opposing electrodes is the reverse of the polarity of the AC pulse applied simultaneously or nearly simultaneously to adjacent or nearly adjacent picture elements. This drive method avoids flicker caused by differing luminance intensities resulting from alternating polarity in EL matrix-type displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.