CHARGED PIGMENT PARTICLES FOR ELECTROPHORETIC DISPLAY

摘要

The present invention is directed to a charged pigment particles useful for the electrophoretic fluid. The present invention describes how the charge property of the charged pigment particle may be controlled. By adjusting the charge property of the charged pigment particles to a suitable level for an electrophoretic display system, a faster switching speed, a higher contrast ratio and better image bistability may be achieved.