Methods for addressing electro-optic materials
US6825970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1685
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a first process for addressing an electro-optic material having first and second display states differing in at least one optical characteristic and being capable of being changed from its first to its second display state by application of an electric field to the material, the process comprising applying an electrically charged fluid to a portion of at least one surface of the material, thereby changing the display state of a portion of the material. The invention also provides a second process for addressing an electro-optic material, this process comprising contacting the electro-optic material with a non-conductive brush means wet with a conductive liquid while applying a potential difference between the brush means and the electro-optic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.