Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Haiyan Gu0
Hui Du0
Yu Li0
Date of Patent
June 6, 2017
0Patent Application Number
143252610
Date Filed
July 7, 2014
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention is directed to an electrophoretic dispersion comprising charged pigment particles dispersed in a solvent or solvent mixture, wherein at least one type of the charged pigment particles has an aggregation size about 2 to about 10 times their primary size and/or has a PDI in the range of 0.1 to 0.3. The electrophoretic dispersion of the present invention is capable of improving both image bistability and contrast ratio through adjusting the size distribution of the charged pigment particles.
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