DAC driver circuit with pixel resetting means and color electro-optic display device and system incorporating same
US6320565A · kind A · utility
62Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Aug 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/745
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a digital-to-analog (DAC) driver circuit for a color electro-optic display device employing a global ramp generator, color artifacts caused by the residual state of the electro-optic material of the pixels from previously addressed data signals are substantially reduced or eliminated by providing a resetting pulse from the ramp generator to selected pixels prior to addressing with the next set of data signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.