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 |
20120170105 | DISPLAY MEDIUM DRIVER, NON-TRANSITORY COMPUTER-READABLE MEDIUM, DISPLAY DEVICE, AND METHOD OF DRIVING DISPLAY MEDIUM - A display medium driver includes a translucent display substrate, a rear substrate that is opposed to the display substrate with a gap interposed therebetween, a dispersion medium enclosed between the substrates, a first particle group dispersed in the dispersion medium so as to migrate by applying a first voltage across the substrates, and a second particle group dispersed in the dispersion medium so as to migrate by applying a second voltage across the substrates, the driver including a setting unit setting a voltage value and a voltage application time of the first voltage with which the first particle group does not migrate at the time of causing the second particle group to migrate depending on a display density of the second particle group and a voltage application unit first applying the first voltage across the substrates and then applying the second voltage across the substrates. | 07-05-2012 |
20130021384 | DRIVE DEVICE, DISPLAY APPARATUS, AND COMPUTER READABLE MEDIUM - A drive device that drives a display medium displaying an image includes a setting unit that sets a drive voltage of second particles responsive to a display density of the second particles with respect to the image, and sets threshold characteristics of first particles responsive to the set drive voltage of the second particles and a display density of the first particles, and a voltage application unit that applies between a display substrate and a back substrate an initial drive voltage responsive to the threshold characteristics of the first particles set by the setting unit, and thereafter applies between the display substrate and the back substrate the drive voltage of the second particles responsive to the display density of the second particles set by the setting unit. | 01-24-2013 |
20130135361 | IMAGE DISPLAY MEDIUM DRIVER, IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY MEDIUM DRIVING METHOD - An image display medium driver includes a voltage applying unit that applies a voltage between a pair of substrates of an image display medium that displays an image, the image display medium including plural groups of colored particles colored in a color which is different for every group, at least one of the substrates having transparent properties, each group of colored particles moved when the voltage equal to or higher than a threshold voltage in terms of absolute value, that is different for every group, and a controller that determines a substrate on which the colored particles are present for each group of colored particles based on the last image information used for displaying an image. | 05-30-2013 |
20130234923 | DRIVING DEVICE OF IMAGE DISPLAY MEDIUM, IMAGE DISPLAY APPARATUS, DRIVING METHOD OF IMAGE DISPLAY MEDIUM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A driving device of an image display medium includes a voltage applying unit that applies a voltage between substrates, a generation unit that generates a polarity pattern where a polarity is reversed at a time width shorter than a pulse width at which a colored particle, of which pulse width for displaying the maximum density is the shortest, displays the maximum density, and a controller that controls the voltage applying unit such that a voltage with the magnitude for driving each kind of the colored particles is applied to each pixel, the voltage being a voltage with the same polarity continuously selected for each kind of colored particle, and the voltage with the same polarity being selected from voltages of which polarities are reversed in the polarity pattern on the basis of information on each pixel of the image information. | 09-12-2013 |
20130321377 | DRIVING DEVICE OF IMAGE DISPLAY MEDIUM, IMAGE DISPLAY APPARATUS, DRIVING METHOD OF IMAGE DISPLAY MEDIUM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - Provided is a driving device of an image display medium which includes a pair of substrates having a transparent display substrate and a back substrate disposed so as to be opposite to the display substrate with a gap therebetween, a first electrode provided on the display substrate side, plural second electrodes provided on the back substrate side, and particles sealed between the pair of substrates, and which displays an image on the basis of image information,
| 12-05-2013 |
20130321381 | DRIVING DEVICE FOR DRIVING DISPLAY MEDIUM, DISPLAY DEVICE, METHOD OF DRIVING DISPLAY MEDIUM, AND DISPLAY METHOD - There is provided a driving device for driving a display medium that includes a pair of substrates and plural particle groups which are provided between the pair of substrates and have different colors and different threshold voltages for separation from the substrates, including an application unit that applies reset voltages for moving the plural particle groups to one of the pair of substrates between the substrates, each reset voltage being different from each other according to each of the plural particle groups. | 12-05-2013 |
20130335811 | DISPLAY MEDIUM DRIVER, NON-TRANSITORY COMPUTER-READABLE MEDIUM, DISPLAY DEVICE, AND METHOD OF DRIVING DISPLAY MEDIUM - A display medium driver includes a translucent display substrate, a rear substrate that is opposed to the display substrate with a gap interposed therebetween, a dispersion medium enclosed between the substrates, a first particle group dispersed in the dispersion medium so as to migrate by applying a first voltage across the substrates, and a second particle group dispersed in the dispersion medium so as to migrate by applying a second voltage across the substrates, the driver including a setting unit setting a voltage value and a voltage application time of the first voltage with which the first particle group does not migrate at the time of causing the second particle group to migrate depending on a display density of the second particle group and a voltage application unit first applying the first voltage across the substrates and then applying the second voltage across the substrates. | 12-19-2013 |
20140104675 | PARTICLE DISPERSION FOR DISPLAY, DISPLAY MEDIUM, AND DISPLAY DEVICE - A particle dispersion for display includes color particles for display that move in response to an electric field and include first color particles and second color particles; and a dispersion medium that disperses the color particles for display, in which the second color particles have a larger particle diameter than a particle diameter of the first color particles and the same charging characteristic as a charging characteristic of the first color particles, and in the color particles for display, a ratio (Cs/Cl) of a charge amount Cs of the first color particles per unit area of display to a charge amount Cl of the second color particles per unit area of display is less than or equal to 5. | 04-17-2014 |
20140210865 | DRIVING DEVICE OF IMAGE DISPLAY MEDIUM, IMAGE DISPLAY APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - Provided is a driving device of an image display medium including a voltage application unit that varies a voltage applied to a common electrode provided in one of a pair of substrates, and applies a voltage to a pixel electrode provided in the other substrate through active matrix driving, with respect to the image display medium including plural kinds of particles, and a controller that controls the voltage application unit such that a voltage is applied between the pair of substrates, and controls the voltage application unit such that a deviation time of a scanning timing generated due to the active matrix driving during transition to the steps and a potential difference between the pair of substrates in the deviation time are equal to or less than predefined threshold characteristics of the particles. | 07-31-2014 |
20140247258 | DRIVING DEVICE OF IMAGE DISPLAY MEDIUM, IMAGE DISPLAY APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING DRIVING PROGRAM - A driving device of an image display medium includes an electric field applying unit that applies an electric field between a pair of substrates of an image display medium including first particles of which a first start voltage and a first end voltage vary depending on a variation in external environment and second particles of which a second start voltage and a second end voltage vary depending on the variation in external environment, an external environment acquiring unit, an information storage unit that stores information of an initial driving electric field for applying an adhesive force, the absolute value of which satisfies the first start voltage09-04-2014 | |
20140333646 | DRIVING DEVICE OF DISPLAY MEDIUM, NON-TRANSITORY COMPUTER READABLE MEDIUM STORING DRIVING PROGRAM OF DISPLAY MEDIUM, AND DISPLAY - Provided is a driving device of a display medium, including an application unit that applies a voltage with a pulse width corresponding to a density of a color to be displayed to each of plural pixels of a display medium in which plural kinds of particle groups having different movement starting voltages for movement between a pair of substrates according to an electric field and different colors are enclosed, and a controller that controls the application unit so that a first voltage with a pulse width corresponding to a density of a color of a first particle group finishes being applied to each of the plural pixels, and then a second voltage with a pulse width corresponding to a density of a color of a second particle group is applied thereto. | 11-13-2014 |