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:
Dec. 25, 2018
Filed:
Oct. 02, 2014
Applicant:
E Ink California, Llc, Fremont, CA (US);
Inventors:
Ming Wang, Fremont, CA (US);
Hui Du, Milpitas, CA (US);
HongMei Zang, Fremont, CA (US);
Peter Laxton, Alameda, CA (US);
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/167 (2006.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); G02F 2001/1678 (2013.01); G02F 2202/022 (2013.01); G02F 2202/04 (2013.01); G02F 2202/36 (2013.01);
Abstract
The present invention provides a solution for a highlight or multicolor display device, in which each display cell can display high quality color states. More specifically, an electrophoretic fluid is provided which comprises three types of charged particles and a fourth type of particles which is substantially uncharged neutral buoyancy particles, all of which are dispersed in a solvent or solvent mixture.