Patent application number | Description | Published |
20090237333 | VOLTAGE SELECTION CIRCUIT, ELECTROPHORETIC DISPLAY APPARATUS, AND ELECTRONIC DEVICE - Provided is a voltage selection circuit for outputting a potential selected from a plurality of input potentials, the voltage selection circuit capable of selectively outputting a first high-level potential being a highest potential, a second high-level potential, or a third high-level potential being a lowest potential from an output terminal thereof. The voltage selection circuit includes a first switching circuit that supplies the first high-level potential to the output terminal, a second switching circuit that supplies the second high-level potential to the output terminal, and a third switching circuit that supplies the third high-level potential to the output terminal. The first switching circuit includes a high-voltage transistor and a level shifter connected to a gate terminal of the high-voltage transistor. The second switching circuit includes a first low-voltage transistor, a level shifter connected to a gate terminal of the first low-voltage transistor, and a diode disposed between the first low-voltage transistor and the output terminal. The third switching circuit includes a second low-voltage transistor and a diode disposed between the second low-voltage transistor and the output terminal. | 09-24-2009 |
20090237383 | DRIVING CIRCUIT FOR ELECTROPHORETIC DISPLAY DEVICE, ELECTROPHORETIC DISPLAY DEVICE, METHOD FOR DRIVING THE SAME, AND ELECTRONIC APPARATUS - In an electrophoretic device including a display including pixels with electrophoretic particles between pixel and common electrodes, a pixel-switching element, a memory holding an image signal from the pixel-switching element, and a switch connecting one of first and second control lines to the pixel electrode according to a signal output according to the image signal from the memory, a driving circuit includes a holding voltage unit supplying a holding voltage holding the image signal in the memory, a pixel potential unit supplying a first pixel potential to the first control line and a different second pixel potential to the second control line, a common potential unit supplying a common potential to the common electrode, and a control unit controlling the holding potential unit, the common potential unit, and the pixel potential unit to stop the holding potential after the first and second pixel potentials and common potential are stopped. | 09-24-2009 |
20090237393 | ELECTROPHORETIC DISPLAY DEVICE DRIVING METHOD, ELECTROPHORETIC DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A method for driving an electrophoretic display device that is provided with a display unit having a pixel is provided. The pixel of the electrophoretic display device has a pixel electrode, a common electrode, an electrophoretic element containing a plurality of electrophoretic particles, the electrophoretic element being located between the pixel electrode and the common electrode, a pixel-switching element, and a latch circuit that is connected between the pixel electrode and the pixel-switching element. The method for driving an electrophoretic display device includes: during an image display time period, causing the display unit to display an image; during an image holding time period, holding the displayed image; and during a refresh time period, causing the display unit to display the image again. In the image holding time period of the driving method, the power voltage of the latch circuit is set at the minimum voltage of a power system provided in the electrophoretic display device. | 09-24-2009 |
20100091003 | DRIVING DEVICE AND DRIVING METHOD OF ELECTROPHORETIC DISPLAY - A driving device of an electrophoretic display panel having a common electrode and a plurality of divided electrodes disposed opposite to the common electrode includes: a first driving circuit that outputs a plurality of voltages corresponding to a plurality of voltage data supplied as a series of data and supplies the plurality of voltages to the plurality of divided electrodes; and a second driving circuit that outputs a voltage corresponding to supplied data and supplies the voltage to the common electrode. | 04-15-2010 |
20110141156 | METHOD FOR DRIVING ELECTROPHORETIC DISPLAY DEVICE, ELECTROPHORETIC DISPLAY DEVICE, AND ELECTRONIC DEVICE - A method for driving an electrophoretic display device that includes a display unit having a plurality of pixels and an electrophoretic element provided between a pair of substrates is provided. The method includes displaying on the display unit a third image that includes an image component of a first image and an image component of a second image before changing the first image displayed on the display unit to the second image. | 06-16-2011 |
Patent application number | Description | Published |
20080291740 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device includes a memory cell array, word lines each of which connects the control gates of the memory cells on the same row together in the memory cell array, a row decoder which selects a word line, and applies a voltage to the selected word line, and a voltage generator which generates a boosted voltage, and outputs the boosted voltage as the voltage, the voltage generator includes a comparator which compares a first voltage with a second voltage, and outputs a comparison result signal, a constant current circuit which generates a first control signal in accordance with the comparison result signal, a first delay circuit which generates a second control signal by delaying the comparison result signal, and a charge pump circuit which generates the boosted voltage in response to the first and second control signals. | 11-27-2008 |
20090319840 | SEMICONDUCTOR MEMORY DEVICE AND TEST METHOD THEREOF - A semiconductor memory device includes a nonvolatile memory functioning as a main memory unit, a volatile memory functioning as a buffer unit of the nonvolatile memory, a controller, an ECC buffer, a parity syndrome circuit, an ECC control circuit, a multiplexer, and an ECC error position decoder. | 12-24-2009 |
20120072806 | SEMICONDUCTOR MEMORY DEVICE - According to one embodiment, a semiconductor memory device includes a memory including an array of memory cells. A buffer comprises latches to hold data from the memory cells. The latches constitute latch groups. The latches of each latch group are connected to corresponding one common line through a transfer circuit. An error corrector is connected to the common lines and detects an error bit in received data. A data transfer controller causes the buffer to read out data from memory cells to be verified, repeats reading out of all data in the latches in one latch group to corresponding one of common lines as to-be-verified data segment for different latch groups, and transfers the to-be-verified data segments to the error corrector. A verify controller causes the error corrector to determine whether an error bit is included in to-be-verified data includes the to-be-verified data segments. | 03-22-2012 |
20120206970 | SEMICONDUCTOR MEMORY DEVICE - According to one embodiment, an interface includes first to third input circuits, delay and selection circuits. The first input circuit outputs an active first internal signal in response to an active first control signal received by a memory device. The second input circuit outputs an active second internal signal in response to an active second control signal received by the device while the device is receiving the active first control signal. The delay circuit outputs a selection signal in first or second states after the elapse of a first period from inactivation or activation of the first control signal. The selection circuit outputs the first and second internal signals as an enable signal while receiving the selection signal of the first and second states. The third input circuit outputs an input signal received from the outside from the interface to inside the device while receiving the active enable signal. | 08-16-2012 |
Patent application number | Description | Published |
20080238866 | Drawing circuit of electro-optical display device, drawing method of electro-optical display device, electro-optical display device, and electronic apparatus - Provided is a drawing device of an electro-optical display device which includes a drawing circuit for outputting image data to a driving circuit for driving electro-optical elements of a display unit for displaying an image based on the image data, and a control circuit for controlling the drawing circuit, wherein the drawing circuit includes a first memory in which a plurality of image material data is previously stored, a first working memory having a working area in which the image data composed of at least one image material data is generated, a second working memory having a command information area in which a command signal for instructing execution of a predetermined process is written, and a drawing control circuit which writes the command signal in the command information area and generates command information composed of a plurality of command signals in the command information area, and the control circuit outputs a first control command signal for executing the command information to the drawing control circuit. | 10-02-2008 |
20080238900 | Driving device of electrophoretic display panel, driving method of electrophoretic display panel, electrophoretic display device and electronic apparatus - Provided is a driving device of a segment display type electrophoretic display panel including a common electrode, a plurality of segment electrodes which face the common electrode, and a dispersion system containing electrophoretic particles arranged between the common electrode and the segment electrodes, the driving device including: a driving circuit which supplies a driving voltage having a voltage value according to plural pieces of display data, which are supplied as a series of serial data, to the segment electrodes, wherein the driving circuit includes a switching circuit which switches the driving voltage according to the display data to a voltage value according to reverse data of the display data, on the basis of at least one external control signal input to the driving circuit, independent of the display data. | 10-02-2008 |
Patent application number | Description | Published |
20110287279 | HIGHLY CORROSION-RESISTANT POROUS METAL MEMBER - A porous metal member composed of an alloy at least containing nickel and tungsten is provided. The alloy may contain 50 to 80 wt % of nickel and 20 to 50 wt % of tungsten and may further contain 10 wt % or less of phosphorus and/or 10 wt % or less of boron. Such a porous metal member can be produced by, for example, making a porous base such as a urethane foam be electrically conductive, forming an alloy film containing nickel and tungsten, then removing the porous base from the alloy film, and subsequently reducing the alloy. | 11-24-2011 |
20130266862 | HIGHLY CORROSION-RESISTANT POROUS METAL BODY AND METHOD FOR PRODUCING THE SAME - Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer. | 10-10-2013 |
20130295459 | POROUS METALLIC BODY HAVING HIGH CORROSION RESISTANCE AND METHOD FOR PRODUCING THE SAME - A porous metallic body has a three-dimensional network structure composed of an alloy containing at least Ni and Cr, the porous metallic body having a skeleton formed of a hollow core and a shell, in which when a cross section of the shell is evenly divided in the thickness direction into three portions, i.e., an outer portion, a central portion, and an inner portion, and when concentrations in percent by weight of Cr in the outer portion, the central portion, and the inner portions are defined as a, b, and c, a, b, and c satisfy the relation given by expression (1): | 11-07-2013 |
20140087206 | POROUS METAL BODY AND METHOD OF PRODUCING THE SAME - Provided is a porous metal body containing at least nickel, tin, and chromium. An example of a method of producing such a porous metal body is a method including a conductive-coating-layer formation step of forming a conductive coating layer containing chromium on a surface of a porous base formed of a resin material; a metal-layer formation step of forming a nickel layer and a tin layer in any order on a surface of the conductive coating layer; a removal step of removing the porous base; and a diffusion step of, by a heat treatment, causing interdiffusion of metal atoms between the nickel layer and the tin layer and diffusing chromium contained in the conductive coating layer into the nickel layer and the tin layer. | 03-27-2014 |
20140335441 | METHOD FOR PRODUCING POROUS METALLIC BODY AND POROUS METALLIC BODY - A method for producing a porous metallic body at least includes a step of forming an electrically conductive coating layer on a surface of a skeleton of a three-dimensional network resin having a continuous pore by coating the surface with a coating material containing a carbon powder having a volume-average particle size of 10 μm or less and at least one fine powder having a volume-average particle size of 10 μm or less and selected from the group consisting of metal fine powders and metal oxide fine powders; a step of forming at least one metal plating layer; and a step of performing a heat treatment to remove the three-dimensional network resin and to cause reduction and thermal diffusion in the at least one metal or metal oxide fine powder and the at least one metal plating layer. | 11-13-2014 |