Patent ID: 6225971
Filing Date: 2001-05-01
Classification: G02F

Abstract:
An electrophoretic display comprising:a light-transmissive front window and a parallel, spaced-apart light-absorbing black rear panel, the front window and rear panel defining a plurality of cells disposed in a lateral adjacent relationship relative to each other, the cells being grouped into threes with each group of three forming a pixel;wherein each cell contains charged, light-scattering substantially white particles in a light-transmissive fluid;a color filter element across the front window of each cell, the filter elements for the three cells in a pixel being of different colors from one another, said different colors being red, green and blue;a non-obstructing collecting electrode for each cell to substantially remove particles from the path of light through the cell so that light can reach the light absorbing black rear panel, thereby causing the cell to appear black; anda non-obstructing counter electrode, cooperating with the collecting electrode for each cell to distribute the particles in the cell to substantially scatter and reflect the light that enters the cell, thereby causing the cell to have the color of its filter element.