Method and system for generating enhanced gray levels in an electromechanical grating display
US6717714B1 · kind B1 · utility
4Cited by
8References
48Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for actuating an electromechanical grating device that has ribbon elements. The method includes the steps of: providing a data stream, generating a pulse width modulated waveform including at least two different non-zero voltages from the data stream, and applying the pulse width modulated waveform to the ribbon elements such that the ribbon elements transition through at least three different states of actuation that correspond to the pulse width modulated waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.