Patent ID: 8068090
Filing Date: 2011-11-29
Classification: G02B,G02F,G09G

Abstract:
1. An image display medium comprising: a pair of substrates at least one of that is light-transmissive; a liquid enclosed between the substrates: three or more types of colored particles dispersed in the liquid that move in accordance with electric fields applied between the substrates and have different colors and charge characteristics: and multicolor particles that are enclosed between the substrates and are shaped as rotatable bodies that rotate in accordance with an electric field applied between the substrates. and at least first portions of the multicolor particles offset from centers of gravity thereof have positive or negative polarity, and the first portions and at least second portions that are different from the first portions are respectively different colors, wherein at least one type of the colored particles have an opposite polarity from at least one other type of colored particles, and absolute values of voltages required in order for the respective colored particles to move, and an absolute value of a voltage required in order for the multicolor particles to rotate in accordance with the electric field, are respectively different.