Circuitry and method for driving LED display
US8525424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0252
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure provides a circuit and a method for driving an LED display. The driving circuit comprises a selection circuit for selecting a first light emitter from the plurality of light emitters, a pre-charging circuit for charging an equivalent capacitor of the display panel with respect to the selected first light emitter, and a power circuit for supplying power to the first light emitter after the first light emitter is selected, wherein the power circuit is configured to supply a driving current to the first light emitter in one or more stages. The driving circuit and method of this disclosure can be used to significantly increase the refresh rate and resolution of the LED display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.