Method and apparatus for driving electronic displays
US5598179A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1993 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jun 14, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3625
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A processing system (500) addresses an electronic display (100) comprising picture elements (pixels) (108) controlled by a plurality of first and second electrodes (106, 104). The plurality of first electrodes (106) are controlled by a plurality of periodic first drive signals (400) having a predetermined number of time slots independent of data being displayed. The plurality of second electrodes (104) are controlled by a plurality of second drive signals responsive of the data being displayed. The processing system (500) comprises calculating engine (610, 612) calculating from data being received the plurality of second drive signals for one of the plurality of second electrodes (104) for a time slot of the predetermined number of time slots. The calculating engine (610, 612) calculates one of the plurality of drive signals for the one of the plurality of second electrodes (104) as a function of the plurality of periodic first drive signals (400) for the time slot and a selected plurality of pixel values for pixels collectively controlled by the one of the plurality of second electrodes. The calculating engine (610, 612) represents the plurality of periodic first drive signals as …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.