Projection display device
US10719002B2 · kind B2 · utility
0Cited by
0References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Mar 21, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/334
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection display device includes a light source module, a switch unit, and micro-scanning mirrors. The light source module provides a light beam. The switch unit receives the light beam and switches a transmission direction of the light beam to the corresponding one of the micro-scanning mirrors during each of periods. The micro-scanning mirrors cause the light beam to scan over projection surfaces to form images. The projection display device can project the images on the projection surfaces without image brightness loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.