Light beam generating device, projection device, and light beam generating method
US11369014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2021 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Feb 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.