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| 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 |
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| 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 |
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| 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 |
