Methods for driving bistable electro-optic displays, and apparatus for use therein
US7733335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.