Energy-efficient split-electrode TFEL panel
US4739320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1985 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Apr 30, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0223
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving architecture for a matrix addressed TFEL display includes upper and lower data electrode arrays divided by a narrow gap and scanning electrodes arranged in complementary pairs one for each array of data electrodes. The data electrodes are charged at a rate which minimizes the power loss in the resistive component of the data electrode circuitry. The top and bottom data electrode arrays may be driven simultaneously, thereby decreasing the time needed to scan the panel, thus permitting more electrodes and larger screens. The split-screen array provides shorter data electrodes which take less time to charge, thus permitting use of energy-saving techniques which require a slower charging rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.