Circuit for driving LED display
US7138995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2004 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0272
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit for driving a light-emitting diode (LED) display has multiple driving modes. The circuit has a control unit for outputting a mode-switching signal, a scan driving chip connecting with the control unit for providing a scan signal, a data driving chip connecting with the control unit and the scan driving chip for providing a data signal, a row control interface connecting with the row line, the control unit, the scan driving chip and the data driving chip to receive the mode-switching signal for switching an input end of the row control interface, and a column control interface connecting with the column line, the control unit, the scan driving chip and the data driving chip to receive the mode-switching signal for switching an input end of the column control interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.