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:
Sep. 01, 2020
Filed:
Feb. 23, 2015
Applicant:
E Ink California, Llc, Fremont, CA (US);
Inventors:
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/167 (2019.01); G02F 1/1676 (2019.01); G02F 1/1681 (2019.01); G02F 1/1675 (2019.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); G02F 1/1676 (2019.01); G02F 1/1681 (2019.01); G02F 2001/1678 (2013.01);
Abstract
The present invention is directed to an electrophoretic display device comprising an electrophoretic fluid which fluid comprises two type of charged particles dispersed in a solvent, wherein the two types of charged particles are of the same color, but carrying opposite charge polarities.