Projection display device and driving method
US9728141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection display device is disclosed herein. The projection display device includes an image processing module and a light source driver. The image processing module is configured for receiving an image data and generating a display signal which includes an image period and a black state period. The light source driver is configured for generating a light driving signal to drive a projection light source, wherein the light driving signal includes a first segment and a second segment in the black state period, and the average amplitude of the light driving signal in the second segment is lower than the average amplitude of the light driving signal in the image period. A driving method is disclosed herein as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.