Modified slow-scan drive signal
US11487105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device, including a display surface, a laser beam emitter, and a processor. The display device may further include a slow-scan MEMS driver configured to drive a slow-scan mirror and a fast-scan MEMS driver configured to drive a fast-scan mirror. The slow-scan mirror and the fast-scan mirror may reflect the laser beam onto an active region of the display surface. The slow-scan period may include a scanning interval in which the slow-scan mirror is configured to move to a final scanning position at one or more scanning ramp rates and a flyback interval in which the slow-scan mirror is configured to return to the initial scanning position. The processor may generate a modified slow-scan drive signal by modifying one or more of the initial scanning position, the final scanning position, and the scanning ramp rate in a blank region of the display surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.