Browse Prior Art Database

DECREASED THICKNESS WRITING ON ELECTROPHORETIC DISPLAYS

IP.com Disclosure Number: IPCOM000024176D
Original Publication Date: 1979-Dec-31
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

Improved writing on an electrophoretic sandwich cell display device 1 with a single stylus or plural styli 2 is disclosed. The device includes an electrophoretic suspension material 3 confined between a substrate 4 having a conductive electrode on its interior surface, which may be overcoated with a dielectric layer, and a dielectric top layer. Visible information may be written thereon through an electrically activated stylus or an array of styli which are passed over and in contact with the top layer. Electrophoretic cells provide superior writing surf aces as they have excellent appearance, long memory times and require low activation charges for causing colored charged particles to migrate through the cell.