Patent ID: 9494842
Filing Date: 2016-11-15
CPC Classification: G02B,G02F,G09G

Claim Text:
1. An electrophoretic material, wherein: particles are dispersed in a solvent, volume, which is obtained by dividing a volume of the solvent by a total number of particles, is called free volume, and a radius of a spherical space, which is occupied by sum of an average volume of the particles and the free volume, is called a free volume radius, the particles include at least first particles which are charged with a first polarity and second particles which are charged with a second polarity, an average radius of the first particles is called a first particle average radius, and an average radius of the second particles is called a second particle average radius, the first particle average radius is greater than the second particle average radius; and a difference between the free volume radius and the first particle average radius is greater than the second particle average radius, the particles include third particles, an average radius of the third particles is called a third particle average radius, the second particle average radius is equal to or greater than the third particle average radius, and a difference between the free volume radius and the second particle average radius is greater than the third particle average radius.