Flicker reduction in an LCoS array
US9881567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Sep 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0247
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for reducing flicker arising in pixels along an axis of a liquid-crystal based array such as a LCoS array. The pixels along the axis exhibit a common gray scale level. In accordance with the method, a plurality of digital data command sequences are selected that each drive a pixel at the common gray scale level. A first of the plurality of digital data command sequences is applied to a first pixel along the axis. A second of the plurality of digital data command sequences is applied to a second pixel along the axis. The second pixel is adjacent to the first pixel. The first and second digital command sequences give rise to voltages being applied to the two pixels which have frequency components that are opposite in phase and equal in magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.