Methods and apparatus for driving pixels in a microdisplay
US7151521B2 · kind B2 · utility
5Cited by
3References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | May 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0259
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel is driven with pulse width modulation (PWM). A cycle for the PWM signal is divided into a plurality of super-intervals. Each of the super-intervals is divided into a plurality of intervals. An interval index is stored for the pixel. The timing at which the pixel is changed from one state to another is selected based on an enable signal and the stored interval index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.