Driving of electrowetting display device
US8154486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Sep 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of driving an electrowetting display device including a display element, the display element having an electrode for applying a voltage and providing a display state in response to a signal level of the voltage. The method comprises the following subsequent steps for maintaining a display state of the display element: (1) applying a first signal level (Va) during a first period (t1 t2) for the display state; (2) applying a second signal level (0) during a second period (t2-t3); and (3) applying the first signal level during a third period (t3-t4). The first period is longer than 1 ms and the first period plus the third period is longer than five times the second period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.