Color electrophoretic display

摘要

The present invention is directed to a color display device wherein each of the display cells is filled with an electrophoretic fluid comprising two types of charged pigment particles dispersed in a colored medium. Multiple colors of high quality may be achieved by the present invention.

主权项

1. A display device comprising display cells, wherein each of said display cells is
a) sandwiched between a first layer comprising a common electrode and a second layer comprising a pixel electrode, and b) filled with a display fluid comprising a first type of pigment particles which is white and a second type of pigment particles which is red, green or blue, and said two types of pigment particles are oppositely charged and are dispersed in a black solvent, wherein said black solvent comprises non-charged or slightly charged black particles dispersed in a clear and colorless solvent.