Patent ID: 9366935
Filing Date: 2016-06-14
CPC Classification: G02F

Claim Text:
1. A display fluid comprising a charge control agent and charged composite pigment particles dispersed in a hydrocarbon solvent, wherein each of said composite pigment particles consisting of at least a core pigment particle, an organic polymer shell, and steric stabilizer polymers, wherein each of the steric stabilizer polymers is chemically bonded on the surface of the organic polymer shell, the total weight of the shell and the steric stabilizer polymers in the total weight of the core pigment particle, the shell, and the steric stabilizer polymers is 20-70% by weight, the display fluid is an electrophoretic fluid, and the steric stabilizer polymers are selected from the group consisting of: polyethylene, polypropylene, polyester, polysiloxane, and a mixture thereof.