MULTICHROMAL TWISTING BALL DISPLAYS

摘要

An addressable display device comprising a light transparent body having a plurality of spheroidal balls supported therein. Each ball has an electrical dipole moment and a magnetic dipole moment. An addressing circuit is provided for applying an electric field and a magnetic field across a selected portion of the body to position a given ball. Preferably, a given ball is multichromal and includes longitudinal ranges of different colors. A given color within a longitudinal range may include regions of variable saturation as a function of latitude.