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:
Jul. 05, 2016
Filed:
Jun. 09, 2011
Applicants:
Hui Du, Milpitas, CA (US);
Haiyan Gu, Fremont, CA (US);
Xiaojia Wang, Fremont, CA (US);
Inventors:
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B 67/08 (2006.01); C09C 3/10 (2006.01); G02F 1/167 (2006.01); C09C 1/56 (2006.01); C09C 3/00 (2006.01); C09C 3/12 (2006.01); H01B 1/12 (2006.01);
U.S. Cl.
CPC ...
C09B 67/0013 (2013.01); C09C 1/56 (2013.01); C09C 3/006 (2013.01); C09C 3/10 (2013.01); C09C 3/12 (2013.01); G02F 1/167 (2013.01); G02F 2001/1678 (2013.01);
Abstract
The present invention is directed to an electrophoretic display fluid, in particular, pigment particles dispersed in a solvent or solvent mixture, and methods for their preparation. The pigment particles generated, according to the present invention, are stable in solvent under an electric field and can improve the performance of an electrophoretic display.