Drive method for MEMS devices
US7928940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2006 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Feb 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of exemplary MEMS interferometric modulators are arranged at intersections of rows and columns of electrodes. In certain embodiments, the column electrode has a lower electrical resistance than the row electrode. A driving circuit applies a potential difference of a first polarity across electrodes during a first phase and then quickly transition to applying a bias voltage having a polarity opposite to the first polarity during a second phase. In certain embodiments, an absolute value of the difference between the voltages applied to the row electrode is less than an absolute value of the difference between the voltages applied to the column electrode during the first and second phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.