Patent ID: 6816146
Filing Date: 2004-11-09
Classification: C01P,C09C

Abstract:
An electrophoretic display liquid comprising:a dispersion medium; a white particulate material having a volume median particle diameter Dw; and a colored particulate material different from the white particulate material and having a color different from a color of the white particulate material and a volume median particle diameter Dc, wherein a ratio Dc/Dw is from 1/50 to 1/1 and the volume median particle diameters Dc and Dw are defined as exp[&Sgr;ndp3ln(dp)/&Sgr;ndp3], where â€œnâ€  with respect to Dc is a number of particles of the colored particulate material and with respect to Dw is a number of particles of the white particulate material, and â€œdpâ€  with respect to Dc is a diameter of a particle of the colored particulate material and with respect to Dw is a diameter of a particle of the white particulate material.