Patent ID: 7848009

Claim:
An image display medium comprising: a pair of substrates, at least one of which is translucent; a liquid that is enclosed between the substrates; first colored particles that are colored a first color, are dispersed in the liquid, and move in response to an electric field that is formed between the substrates; second colored particles that are colored a second color that is different from the first color, are dispersed in the liquid, and move in an opposite direction of the first colored particles; and third colored particles that are colored a third color that is different from the first color and the second color, are dispersed in the liquid, are configured to have a particle diameter such that the third colored particles move through clearances between the first colored particles and the second colored particles in a state where the first colored particles and the second colored particles have aggregated together, and move in response to an electric field that is formed between the substrates.