Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating....http://www.google.fr/patents/US7247379?utm_source=gb-gplus-shareBrevet US7247379 - Electrophoretic particles, and processes for the production thereof
Electrophoretic particles, and processes for the production thereof
