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. 21, 2021
Filed:
Aug. 24, 2018
Applicant:
Guangzhou Oed Technologies, Inc., Guangzhou, CN;
Assignee:
Guangzhou OED Technologies, INC., Guangzhou, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 3/10 (2006.01); G02F 1/167 (2019.01); C08F 292/00 (2006.01);
U.S. Cl.
CPC ...
C09C 3/10 (2013.01); C08F 292/00 (2013.01); G02F 1/167 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/60 (2013.01);
Abstract
The invention provides pigment particles and an organic modification layer formed on a surface of the pigment particles; the organic modification layer is a surfactant layer or a polymer material layer formed on the surface of the pigment particles; an organic matter content over the specific surface area Wof the pigment particles is in a range of 0.1-2% g/m. The surface-modified pigment particles provided by the invention have good stability, and the electrophoretic display prepared by using the surface-modified pigment particles of the invention has good optical performance.