Adaptive inversion driving for TFT-LCD
US8860645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Sep 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan driving method for LCD panel comprises varying of polarity pattern adaptive to column data, wherein polarity patterns are dynamically determined from row to row, based on analysis of column drive signals for present and previous rows to obtain a parametric value and determination to either keep default polarity pattern or switch to alternate polarity pattern in accordance with parametric value obtained. Columns are regarded as in one or multiple groups for consideration. A total drive differential value is used as parameter, switching from default polarity pattern to alternate polarity pattern when a threshold is exceeded, to reduce total drive differential going from row to row. Column inversion is a default and dot inversion is an alternate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.