Driving passive light emitting diode array having a driver for outputting switching output signals
US11355058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2021 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving device includes a control unit, a switch unit and a driver unit. The control unit is configured to generate a gray scale output and a synchronization signal. The switch unit is coupled to an LED array, and switches among different conduction states based on a switching output. The driver unit is coupled to the control unit, the switch unit and the LED array. The driver unit generates the switching output based on a clock signal and the synchronization signal, and generates drive outputs for receipt by the LED array based on the clock signal, the gray scale output and the synchronization signal, so as to drive the LED array to emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.