Patent ID: 7858177

Claim:
A method of manufacturing an electrophoretic display sheet, comprising: forming a first liquid that includes a plurality of microcapsules and an aqueous medium, the plurality of microcapsules including a plurality of first microcapsules and a plurality of second microcapsules; forming a second liquid that includes the first liquid and a diluting liquid, the amount of the plurality of microcapsules in the second liquid being not more than 15 weight %; removing the plurality of second microcapsules from the second liquid to form a third liquid by a wet classification method; forming a fourth liquid by concentrating the third liquid with a suction filtration method, the amount of the plurality of first microcapsules in the fourth liquid being in a range from 30 to 80 weight %; applying a coating liquid that includes the fourth liquid to form an applied film on a first substrate.