Patent ID: 8947763
Filing Date: 2015-02-03
Classification: G02B,G02F,G09G

Abstract:
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; a difference between the free volume radius and the first particle average radius is greater than the second particle average radius; and an electric charge amount of the second particles is greater than an electric charge amount of first particles.