Patent application number | Description | Published |
20080224543 | Non-contact signal transmission apparatus - A non-contact signal transmission apparatus transmits electric power and a signal in a non-contact manner via magnetic induction. The apparatus includes: a pair of annular electric power cores provided in opposing relationship to each other; a pair of electric power coils respectively provided in an annular form at one of the pair of electric power cores; and a pair of signal coils respectively provided in an annular form inside one of the pair of electric power cores. Relative permeability inside and around the signal coils is lower than relative permeability of the electric power cores. | 09-18-2008 |
20080297489 | DATA INPUT SYSTEM - A data input system including electronic paper and a stylus writing device is disclosed. The electronic paper includes a transparent display substrate on which a number of optically readable code patterns have been formed, the optically readable code patterns representing positional information on a display surface, a rear surface substrate opposing the display substrate, and coloring particles that are enclosed between the display substrate and the rear surface substrate and that are movable by applying an electric or a magnetic field. The electronic paper displays an image due to motion of the particle. The stylus writing device includes a writing head provided at the end of the stylus for writing the image by applying an electric or a magnetic field to the electronic paper by contact and includes an optical reading device for optically reading the code patterns formed on the display surface where the end of the stylus contacts. | 12-04-2008 |
20110175893 | DISPLAY MEDIUM AND DISPLAY APPARATUS - The present invention provides a display medium including a pair of substrates; pixel electrodes disposed on one of the pair of substrates; a common electrode disposed on the other substrate of the pair of substrates; and a display layer, the common electrode includes two or more common electrode layers containing a first common electrode layer and a second common electrode layer which being disposed across a gap in a thickness direction, and electrical voltages thereof being controlled independently of each other, the first common electrode layer containing at least one electrode unit and at least one non-electrode area corresponding to a disposition of the pixel electrodes, and the second common electrode layer containing at least one second electrode unit, the at least one second electrode layer completely overlapping with at least the at least one non-electrode area of the first common electrode layer in a thickness direction. | 07-21-2011 |
20110316835 | DISPLAY DEVICE - There is provided a display device including: a pair of substrates; a display medium dispersed between the pair of substrates, and including plural kinds of particle groups that move in accordance with an electric field formed between the substrates and have different colors and different absolute values of movement voltages required to move; a voltage applying unit that applies a voltage between the substrates; a first acquisition unit which acquires area information indicating an area corresponding to plural pixels of an image displayed on the display medium; and a control unit that controls the voltage applying unit to apply voltages, which have the same polarity between pixel areas and are equal to or higher than a maximum value among the absolute values of the movement voltages of the kinds of particle groups, to the respective pixel areas when the first acquisition unit acquires the area information. | 12-29-2011 |
20120068990 | DISPLAY MEDIUM AND DISPLAY DEVICE - A display medium includes a pair of substrates, a dispersion medium sealed between the pair of substrates, a migrating particle group dispersed in the dispersion medium, and a surface layer provided on at least one of the facing surfaces of the pair of substrates and including a polymer compound that is a copolymer containing the following constitutional unit (A) and constitutional unit (B): | 03-22-2012 |
20120069423 | DISPLAY MEDIUM AND DISPLAY DEVICE - A display medium includes a pair of substrates, a dispersion medium sealed between the pair of substrates, a migrating particle group dispersed in the dispersion medium, and a surface layer provided on at least one of the facing surfaces of the pair of substrates and including a polymer compound that is a copolymer containing the following constitutional unit (A) and constitutional unit (B): | 03-22-2012 |
20120139966 | DISPLAY MEDIUM DRIVE DEVICE, COMPUTER-READABLE STORAGE MEDIUM, AND DISPLAY DEVICE - A display medium drive device includes: a translucent display medium, a back substrate opposing the display substrate, a dispersant sealed between the display substrate and the back substrate, and plural types of particle groups with different colors and charge polarities that are dispersed in the dispersant so as to move in the inter-substrate space in response to an electric field; and a voltage application unit which, in a case of displaying a gradation of a color of a first particle group, applies a first voltage and which is a voltage equal to or greater than a threshold voltage needed to cause at least some of the first particle group to detach from the display substrate or the back substrate and thereafter applies a second voltage that has the same polarity as the first voltage and is lower than the threshold voltage. | 06-07-2012 |
20130222885 | DISPERSION LIQUID FOR ELECTROPHORETIC DISPLAY, DISPLAY MEDIUM, AND DISPLAY DEVICE - There is provided a dispersion liquid for electrophoretic display, containing a dispersion medium | 08-29-2013 |
20130222887 | ELECTROPHORETIC PARTICLE, ELECTROPHORETIC PARTICLE DISPERSION LIQUID, DISPLAY MEDIUM, AND DISPLAY DEVICE - There is provided an electrophoretic particle which contains a core material particle formed of a composition containing a resin, a nitrogen-containing heterocyclic compound having any one of an imino group, a methylol group and an alkoxymethyl group in the molecule and a heterocyclic ring having a nitrogen atom, and a coloring agent. | 08-29-2013 |
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 |