Patent ID: 6741387
Filing Date: 2004-05-25
Classification: G02F,G09G

Abstract:
A display element comprising:a first substrate and a second substrate, which are disposed facing each other; and multiple kinds of particles having different colors and charge polarities, which particles are sealed in a space between the first substrate and the second substrate and can be moved between the first substrate and the second substrate by an electric field applied thereto, wherein the surface coarseness of at least one of the first substrate and the second substrate, on the surface thereof that faces the other substrate, is more than 1 nm and no greater than 10 &mgr;m, and the coefficient of a shape of the particles is more than 100 and no greater than 140 when FE represents the coefficient of shape of the particles, L represents the circumference of the particles, S represents the area of the particles and FE=((L2/S)/4&pgr;)Ã—100.