Abstract: Each scan line 112 has a unit circuit 40 that has TFTs 62,64 and 66. Capacitance C1 is short-circuited by the TFTs. Reset signal Rst is supplied to the gate electrode of TFT 62. the source electrode of TFT 62 is connected to a gate-on power supply line Vgon. The gate electrode of TFT 66 is connected to the drain electrodes of TFT 62 and 64, and the drain electrode of TFT 66 is connected to the gate electrode of TFT 42. The source electrodes of TFT 64 and 66 are connected to their own scan lines 112.

Abstract: A driving method of an electro-optic device includes determining which condition is satisfied among a plurality of conditions including a first condition where a plurality of pixels include only a first pixels of which an optical state is changed from a second optical state to a first optical state and a third pixels of which the optical state is not changed, a second condition where the plurality of pixels include only a second pixels of which the optical state is changed from the first optical state to the second optical state and the third pixels, and a third condition where the plurality of pixels include both the first pixels and the second pixels, based on data stored in a memory storing the data indicating the optical state of the plurality of pixels.

Abstract: When a first data line becomes an H level and a second data line becomes an L level at the time that a scan line is at the H level, a first TFT is turned on and a second TFT is turned off. When the first TFT is turned on, a voltage higher than the voltage of a common electrode is applied to a pixel electrode, so that a pixel is displayed in black. When the first data line becomes the L level and the second data line becomes the H level at the time that the scan line is at the H level, the first TFT is turned off and the second TFT is turned on. When the second TFT is turned on, a voltage lower than the voltage of the common electrode is applied to the pixel electrode, so that a pixel is displayed in white.

Abstract: Pixels include liquid crystal capacitors and holding capacitors having first ends connected to pixel electrodes and second ends connected to common electrodes corresponding to the first to 320th rows. A common electrode driving circuit includes TFTs for individual rows. In a partial mode, when a period in which a level of a scanning signal is high is long, a control signal Vg-c is brought to a high level during the period so that the TFTs are turned on. Since gate voltages are applied to the TFTs, a problem in that the gate voltages are reduced due to voltage leakage and the common electrodes are brought into high-impedance states is avoided. Alternatively, potentials of the common electrodes are fixed to a voltage of a common signal, which is a low-level when positive-polarity writing is specified to all the rows and a high-level when negative-polarity writing is specified to all the rows.

Abstract: A load driving circuit that generates a desired voltage waveform to drive a load includes a target voltage waveform output section that outputs a target voltage waveform to be applied to the load. Power supply sections generate electrical power with voltage values different from each other. Negative feedback control sections between the power supply sections and the load supply electrical power from the corresponding power supply sections to the load and execute negative feedback control of a value of a voltage applied to the load for matching the voltage value and the target voltage waveform. A power supply connection section selects one of the power supply sections based on the value of the voltage applied to the load or the voltage value of the target voltage waveform and connects the selected power supply section to the load and disconnects the rest of the power supply sections from the load.

Abstract: An electro-optical device includes pixels that are provided to correspond to intersections of a plurality of rows of scanning lines and a plurality of pairs of first and second data lines; a scanning line driving circuit that selects the plurality of rows of scanning lines according to a predetermined sequence; and a data line driving circuit that supplies a data signal having a voltage according to a gray-scale level of each of pixels corresponding to the selected scanning line to the first data line, and supplies an inverted data signal obtained by inverting the data signal on the basis of a predetermined potential to the second data line.

Abstract: Provided is an electrophoretic display device including: an electrophoretic panel which is provided with an electrophoretic element which includes a first electrode, a second electrode which faces the first electrode, and a charged particle arranged between the first electrode and the second electrode; and a control circuit which controls the electrophoretic panel. The control circuit controls a data voltage with a value which corresponds to the specified gradation of the electrophoretic element to be applied between the first electrode and the second electrode in a writing period, and controls a correction voltage which is the opposite polarity to the data voltage and is less than or equal to a predetermined threshold value to be applied between the first electrode and the second electrode in a correction period which is different from the writing period.

Abstract: A load driving circuit that generates a desired voltage waveform to drive a load includes a target voltage waveform output section that outputs a target voltage waveform to be applied to the load. Power supply sections generate electrical power with voltage values different from each other. Negative feedback control sections between the power supply sections and the load supply electrical power from the corresponding power supply sections to the load and execute negative feedback control of a value of a voltage applied to the load for matching the voltage value and the target voltage waveform. A power supply connection section selects one of the power supply sections based on the value of the voltage applied to the load or the voltage value of the target voltage waveform and connects the selected power supply section to the load and disconnects the rest of the power supply sections from the load.

Abstract: An electrophoretic display device, which includes a first substrate, a second substrate, and an electrophoretic element disposed between the first substrate and second substrate, includes a plurality of pixel electrodes provided on the first substrate and arranged in a row direction and in a column direction, and a counter electrode provided on the second substrate. In conjunction with the pixel electrodes, the counter electrode applies a voltage to the electrophoretic element. The counter electrode includes an opening portion extending in at least one of the row direction and the column direction at a location opposite an area between the pixel electrodes that are adjacent to each other.

Abstract: A driving circuit includes a plurality of scanning lines, a plurality of data lines, a plurality of capacitor lines, pixels, a scanning line driving circuit, a capacitor line driving circuit, a first capacitive signal output circuit, and a data line driving circuit. Each of the pixels includes a pixel switching element, a pixel capacitor, and a storage capacitor. The capacitor line driving circuit supplies a first capacitive signal to the capacitor line when the one scanning line is selected, and changes a voltage value of the first capacitive signal when a scanning line, located a predetermined number of scanning lines away from the one scanning line, is selected. The first capacitive signal output circuit adjusts and outputs a voltage of the first capacitive signal when the one scanning line is selected. The data line driving circuit supplies the pixels with data signals of voltages corresponding to gray scale levels.

Abstract: In a line head, a plurality of element arrays arranged in a first direction. Each array includes a plurality of light emission elements arrayed in a second direction which is perpendicularly to the first direction. The light emission elements emit light for forming an electrostatic latent image on a photosensitive surface of an image carrier. A switcher activates the light emission elements in at least one of the element arrays while deactivating the others. A developer develops the latent image as a visible image with toner.

Abstract: A driving circuit of an electrooptic device includes: a plurality of scanning lines; a plurality of data lines; first and second capacitor lines; a common electrode; pixels; a scanning-line driving circuit; a capacitor-line driving circuit; and a data-line driving circuit. The pixels each include: a pixel switching element; a pixel capacitor disposed between the pixel switching element and the common electrode; and a storage capacitor. When the one scanning line is selected, the capacitor-line driving circuit shifts the voltage of a first (or second) capacitor line corresponding to one scanning line to one of higher and lower levels from a predetermined voltage by a predetermined value, and holds the predetermined voltage after a scanning line apart from the one scanning line by a predetermined number of lines is selected until the one scanning line is selected again.

Abstract: A driving circuit includes a plurality of scanning lines, a plurality of data lines, a plurality of common electrodes, pixels, a scanning line driving circuit, a common electrode driving circuit, and a data line driving circuit. When a predetermined number of scanning lines away from the one of the odd (or even)-numbered scanning lines is selected, the common electrode driving circuit applies one (the other) of a low level voltage and a high level voltage to the common electrode, and, after the selection of the one of the odd (or even)-numbered scanning lines is completed or after the selection of the scanning line located a predetermined number of scanning lines away from the one of the odd (or even)-numbered scanning lines is completed, the common electrode driving circuit maintains the common electrode at the one of the low level voltage and the high level voltage.

Abstract: An electric optical apparatus including a display section in which an electric optical material is pinched between a pair of substrates and a plurality of pixels is arranged, wherein the display section is provided with a scanning line, a data line and a power-supply line that are connected to each of the pixels, and each of the pixels is provided with a pixel electrode, a driving transistor that is connected between the pixel electrode and the power-supply line, a capacitance for modulation that is connected between a gate of the driving transistor and the data line, a maintenance capacitance that connects one side electrode to the gate of the driving transistor, and a transistor for correction that is connected to a diode and in which one side terminal thereof is connected to the gate of the driving transistor.

Abstract: A drive circuit of an electro-optical device includes: plural rows of scanning lines; plural columns of data lines; a plurality of common electrodes; pixel switching elements, pixel capacitors; and pixels. Here, the drive circuit includes a scanning line drive circuit; and first transistors corresponding to the plurality of common electrodes. Each of the first transistors includes: a common electrode drive circuit for connecting the common electrode to a power supply line, to which a predetermined voltage is applied, when the scanning line is selected, a common signal output circuit having a voltage for allowing a detection voltage of the common electrode corresponding to a scanning line to become a reference voltage when the scanning line is selected, and a data line drive circuit having a voltage according to the gray scale level of the pixel to the pixel corresponding to the selected scanning line via the data line.

Abstract: An electrophoretic display device includes an electrophoretic element having an electrophoretic layer interposed between a plurality of pixel electrodes and a common electrode, a storage capacitor and a selection transistor provided corresponding to each of the pixel electrodes for each pixel, a capacity line connected to an electrode of the storage capacitor, and a control unit controlling potentials at the pixel electrodes, the common electrode, and the capacity lines, wherein the control unit performs a potential writing operation of writing a predetermined potential in the storage capacitor and the pixel electrode during an image display period when images are displayed on a display region where the pixels are arranged, and a potential changing operation of changing a potential at the capacity line from a first potential to a second potential after the selection transistor is turned off.

Abstract: The electrophoretic display device in which an electrophoretic element is interposed between a pair of substrates includes a first electrode and a second electrode that are formed in each pixel on one substrate, and an opposing electrode that is formed on another substrate, and faces the first electrode and the second electrode through the electrophoretic element. Here, a gradation is displayed due to a difference in potential between the first electrode and the second electrode.

Abstract: A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of the feeding portions; and a second power supply line for ground, connected to a second feeding portion for a ground of the feeding portions. The light-emitting elements are respectively connected between the first power supply line and the second power supply line.

Abstract: An electro-optic device includes a plurality of scanning lines that are arranged in a line direction, a plurality of data lines that are arranged in a column direction, a plurality of pixels that are provided at intersection positions of the scanning lines and the data lines, a driving circuit that supplies an image signal based on image data to a display unit formed by arranging the plurality of pixels, and an image data input circuit that inputs the image data to the driving circuit. The image data input circuit includes a storage unit that stores line data of a plurality of continuous lines including line data of an input target among line data formed from pixel data corresponding to one line of the image data, and from the storage unit and corrects the pixel data of the input target on the basis of information of the peripheral pixel data.

Abstract: A driving method for driving an electrophoretic display apparatus provided with a display unit, which is configured to include a pair of substrates having electrophoretic components interposed therebetween, pixels that are disposed in a line direction and in a row direction, pixel electrodes corresponding to the respective pixels, and an opposite electrode being opposite the pixel electrodes, includes a process which allows one of the pixel electrodes corresponding to a first pixel, and one of the pixel electrodes corresponding to a second pixel, the first pixel and the second pixel being located adjacent each other, to be supplied with respective voltages having corresponding polarities thereof the same as a polarity of an electric potential of the opposite electrode, and having corresponding voltage levels thereof different from each other relative to a level of the electric potential of the opposite electrode.