Variable configuration video displays and their manufacture
US6771237B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are cross-talk resistant drive circuitry for electrostatic video displays and flexible, foldable and shaped embodiments of such displays including books, fanfolds and scrolls employing flexible polymer film construction. Transistorless drive circuitry uses row and column dumping capacitors to charge electrostatic pixels in a traveling group to avoid simultaneously charging row-adjacent pixels. Also, individual pixels can be shielded each with their own Faraday cage to control charge leakage from the pixel. The pixels' have spiral rollout shutters whose time parameters can be controlled by the use of suitable bleed resistors. Low-cost film technology manufacturing methods are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.