Electroluminiscent display and driver circuit to reduce photoluminesence
US8026871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2003 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Jun 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention generally relates to display driver circuits for electro-optic displays, and more particularly relates to circuits and methods for reducing the re-emission of absorbed light, for example to increase the color gamut of organic light emitting diode displays. A driver for a display comprising a plurality of light emitting diode display elements, the driver comprising addressing circuitry to address said display elements, a first driver to cooperate with said address circuitry to provide a forward drive to at least one of said display elements to illuminate the display element, and a second driver to provide a reverse bias drive to others of said display elements at the same time as said at least one display element is illuminated to reduce a level of photoluminescence from said others of said display elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.