The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2003
Filed:
Jan. 16, 2002
Pinyen Lin, Rochester, NY (US);
David H. Pan, Rochester, NY (US);
Chieh-Min Cheng, Rochester, NY (US);
Adam Bush, Rochester, NY (US);
James R. Combes, Burlington, CA;
Pudupadi R. Sundararajan, Nepean, CA;
Alison Way, Nepean, CA;
Paul J. Gerroir, Oakville, CA;
Naveen Chopra, Oakville, CA;
Paul F. Smith, Ontario, CA;
Rina Carlini, Mississauga, CA;
Xerox Corporation, Stamford, CT (US);
Abstract
An electrophoretic display liquid composition for use in an electrophoretic display device that has a multiplicity of individual reservoirs, each containing the liquid, contains one or at least two sets of particles dispersed in a transparent and/or colored liquid system. The at least two sets of particles exhibit different, contrasting color and different charging properties from each other, while in the one particle system, the particles exhibit a different, contrasting color from the colored liquid. In all embodiments, at least one of the sets of particles are particles with adjustable morphology made from emulsion/aggregation process. The morphology of the particles is controlled to be from grape, cauliflower, raspberry, or potato up to substantially perfect spheres. The transparent liquid system may include two immiscible liquids having different densities with the sets of particles having densities in between the densities of the two immiscible liquids such that the particles rest at an interface between the two immiscible liquids.