Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device
US6755554B2 · kind B2 · utility
38Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | May 25, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A field sequential color display device includes a color wheel assembly. The color wheel assembly has a color wheel which is divided into a plurality of color regions and a motor for rotating the color wheel. The motor contains a sensor for detecting rotation of the motor and the sensor outputs at least one pulse per one revolution of the motor. The color wheel assembly also has a spatial light modulator for displaying image data that is driving in synchronization with the pulse output by the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.