System and method to compensate for an induced voltage on a pixel drive electrode
US9336731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
We describe a display system comprising an electrooptic display coupled to a display driver and including an induced voltage compensation circuit. The compensation circuit comprises a system to measure a voltage applied a common pixel electrode of the display, and one or both of: a system to measure a voltage swing on a pixel select line of the display, and a system to measure a change in voltage on the common pixel electrode due to a voltage induced on a pixel drive electrode of the display. The compensation circuit also includes a system to apply a voltage to the common pixel electrode, responsive to a combination of the measured applied voltage and one or both of the measured voltage swing and the measured change in voltage, to compensate for the induced voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.