| Patent application number | Description | Published |
|---|
| 20080303778 | IMAGE DISPLAY MEDIUM, IMAGE DISPLAY DEVICE, STORAGE MEDIUM STORING AN IMAGE DISPLAY PROGRAM, AND IMAGE DISPLAY METHOD - There is provided an image display medium that includes: a pair of substrates at least one of that is light-transmissive; a liquid enclosed between the substrates; and 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, wherein at least one type of the colored particles has an opposite polarity from at least one other type of colored particles. | 12-11-2008 |
| 20080303779 | IMAGE DISPLAY MEDIUM AND IMAGE DISPLAY DEVICE - An image display medium including a pair of substrates, a transparent dispersion medium, one or more kind of colored particles and larger sized colored particles. The pair of substrates is disposed with a separation therebetween and at least one of the pair of substrates is transparent. The dispersion medium is transparent and enclosed between the pair of substrates. Each kind of the colored particles is colored a predetermined color, is dispersed in the dispersion medium, has predetermined charge characteristics or predetermined magnetic properties, and is able to migrate between the pair of substrates. The larger sized colored particles have a different color and a larger particle size than the colored particles, are disposed so that the colored particles are able to pass through the separation, have charge characteristics or magnetic properties which are different from those of the colored particles, and are able to move. | 12-11-2008 |
| 20090046053 | IMAGE DISPLAYING MEDIUM AND IMAGE DISPLAY DEVICE - An image display medium including a pair of substrates, a dispersion medium, and particles of two or more kinds, the particles of each kind being able to move in the dispersion medium in response to an electric field formed between the substrates, each kind of particles having a different color and a different absolute value of a voltage for moving, the voltage for moving being determined from a difference between an electrostatic force that acts on the particles in response to the electric field formed between the substrates and a binding force that acts in a direction of retaining the particles in a state that the particles are in before the electrostatic force acts on the particles, and at least one of an intensity of the binding force and an intensity of the electrostatic force for the particles of each kind being different. | 02-19-2009 |
| 20090153943 | IMAGE DISPLAY MEDIUM, DRIVE DEVICE FOR IMAGE DISPLAY MEDIUM AND IMAGE DISPLAY DEVICE - An image display medium comprising a pair of substrates, at least one of which is light-transmissive; two or more kinds of particles having different colors and charge polarities, the particles being positioned between the pair of substrates such that the particles can move in response to an electric field generated between the pair of substrates; and an electric charge-retention layer provided at a side of at least one of the pair of substrates. | 06-18-2009 |
| 20100020384 | IMAGE DISPLAY MEDIUM AND IMAGE DISPLAY DEVICE - An image display medium includes a pair of substrates, a liquid that is enclosed between the substrates, first colored particles, second colored particles and third colored particles. The first colored particles are colored a first color and move in response to an electric field that is formed between the substrates. The second colored particles are colored a second color and move in an opposite direction of the first colored particles. The third colored particles are colored a third color, 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 in which 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. | 01-28-2010 |
| Patent application number | Description | Published |
|---|
| 20110134506 | DISPLAY DEVICE - There is provided a display device including: an electrophoretic display element including, plural types of particles, each of the respective plural types of particles being charged with the same polarity, differing in optical properties, and differing in either in migration speed and/or electric field threshold value for moving, a translucent display-side electrode, a first back-side electrode, and a second back-side electrode; and a voltage control section that controls the voltages applied to the display-side electrode, the first back-side electrode, and the second back-side electrode, such that the types of particles having the fastest migration speed from the plural types of particles, or the types of particles having the lowest threshold value from the plural types of particles, are moved to the first back-side electrode or to the second back-side electrode, and then the particles that moved to the first back-side electrode are moved to the display-side electrode. | 06-09-2011 |
| 20110141087 | DISPLAY DEVICE - There is provided a display device including a voltage application device that performs, with respect to a display medium including, a pair of substrates, plural types of particle groups disposed between the pair of substrates, a first electrode, plural second electrodes, and a third electrode, in succession after a first process, a second process of application of voltages to the display medium to the first through third electrodes such that the first particle group that has passed through the aperture in the third electrode due to the first process moves towards a downstream substrate of the pair of substrates disposed on the downstream side in the passing direction of the first particle group through the aperture, and the second particle group that has not passed through the aperture of the third electrode due to the first process moves towards the substrate on the side facing the downstream substrate. | 06-16-2011 |
