Abstract: Provided is a power feeding system configured to supply electric power from a power feeding device to a power receiving device. The power feeding device includes: a feeding coil; a drive transistor; and a drive control circuit. The power receiving device includes: a resonant circuit including a receiving coil, a resonant capacitor, and a resonance control transistor; and a resonance control circuit. The feeding coil and the receiving coil are arranged so that a central axis of the feeding coil and a central axis of the receiving coil are orthogonal to each other, and a winding portion of the receiving coil is not positioned in a region of a magnetic flux parallel to the central axis of the feeding coil which is generated by the feeding coil.

Abstract: A power feeding system includes a power feeding device and a power receiving device. The power receiving device includes: a resonant circuit having: a receiving coil; a resonant capacitor; and a resonance control transistor; and a resonance control unit configured to control the resonance control transistor based on received power by the receiving coil and power consumption of the load, and to control the resonance control transistor to keep the resonant circuit in a non-resonant state when the power consumption of the load becomes equal to or less than a predetermined value. The power feeding device includes a drive control unit configured to determine whether or not power supply to the power receiving device is required based on a periodic waveform variation in an excited voltage excited in the feeding coil.

Abstract: Provided is a power feeding system configured to supply electric power from a power feeding device to a power receiving device. The power feeding device includes: a feeding coil; a drive transistor; and a drive control circuit. The power receiving device includes: a resonant circuit including a receiving coil, a resonant capacitor, and a resonance control transistor; and a resonance control circuit. The feeding coil and the receiving coil are arranged so that a central axis of the feeding coil and a central axis of the receiving coil are orthogonal to each other, and a winding portion of the receiving coil is not positioned in a region of a magnetic flux parallel to the central axis of the feeding coil which is generated by the feeding coil.

Abstract: A power feeding system includes a power feeding device and a power receiving device. The power receiving device includes: a resonant circuit having: a receiving coil; a resonant capacitor; and a resonance control transistor; and a resonance control unit configured to control the resonance control transistor based on received power by the receiving coil and power consumption of the load, and to control the resonance control transistor to keep the resonant circuit in a non-resonant state when the power consumption of the load becomes equal to or less than a predetermined value. The power feeding device includes a drive control unit configured to determine whether or not power supply to the power receiving device is required based on a periodic waveform variation in an excited voltage excited in the feeding coil.

Abstract: To provide a small non-contact power transmitter capable of securing the power transmission distance even when positional deviation occurs between a power transmission coil and a power receiving coil.

Abstract: In method of driving a bistable nematic dot-matrix liquid crystal display panel, a first pulse voltage is applied to nematic liquid crystal molecules to raise the nematic liquid crystal molecules in the longitudinal direction. After application of the first pulse voltage, a second pulse voltage is applied to the nematic liquid crystal molecules for selecting one of two stable orientation states of the nematic liquid crystal molecules. Immediately after the application of the second pulse voltage, an AC pulse waveform of a voltage lower than a last pulse of the second pulse voltage is applied to thereby remove residual electric charges remaining in the bistable nematic dot-matrix liquid crystal display panel.

Abstract: In a method of driving a bistable nematic dot-matrix liquid crystal display panel, from the facts that a write waveform contains a DC component and that liquid crystal molecules have not yet reached a stable state of anchoring force immediately after the end of writing but gradually become the stable state, it is considered that charges still remain in liquid crystal even at the time point when a COM electrode and a SEG electrode have become GND. Although the residual charges resulting from single writing cause no problem because its period is short, the residual charges after writing break down the bistable liquid crystal display panel as the number of rewriting increases. Immediately after a waveform for rewriting the bistable liquid crystal display panel was applied, an AC waveform of a voltage lower than the last pulse of a drive waveform was applied. Further, the voltage was allowed to gradually approach 0 V.

Abstract: Voltage consumption during flashing of a frame is suppressed. Under a state in which an image is written and held, when a waveform of low voltage at low frequency is applied to the whole surface of a bistable liquid crystal display panel, the liquid crystal molecules are inclined to some extent, if not to the state vertical to a substrate, and the frame displays gray close to white. After that, when the voltage application is stopped, the image displayed before the application appears because the orientation state of the bistable liquid crystal display panel is not broken. By utilizing this phenomenon, a state of applying the waveform of low voltage at low frequency and a non-application state are repeated at a given time interval, and hence the frame can be flashed with low power consumption.

Abstract: In a method of driving a dot matrix display panel using bistable nematic liquid crystal, a “blur” due to a parasitic signal is prevented from being caused. In a method of driving a dot matrix display panel using bistable nematic liquid crystal which may select white/black only by positive polarity driving or negative polarity driving, a direct current component due to a parasitic signal (40) caused at the time of non-selection is canceled by a cancel pulse (41) having a pulse width that is the same as that of the parasitic signal (40) and a polarity that is opposite to that of the parasitic signal (40). The cancel pulse (41) is generated by adding an additive pulse (35) to a common selection signal (25) and by adding an additive pulse (36) to a common non-selection signal (26).

Abstract: A driving device includes a bistable liquid crystal display panel having a common line and a segment line, a common driving section for driving the common line, a segment driving section for driving the segment line, a power source circuit for generating a driving potential, and a control section for controlling the common driving section, the segment driving section, and the power source circuit. In a case of low temperature, a mode for performing driving control with higher voltage efficiency to set a maximum voltage amplitude is selected. In a case of high temperature, a driving mode that does not use the maximum voltage amplitude is selected. Therefore, a driving means suitable for a bistable nematic dot matrix liquid crystal display is provided.

Abstract: Pixel electrode driver circuit is disclosed, which include a data signal line, a first latch circuit composed of a three-stage shift circuit, and a second latch circuit connected to each latch, and in which each output of the second latch circuit is connected to each of electrodes corresponding to pixels in respective colors of red, green, and blue to thereby drive every 2 to 32 electrodes in a time division manner. Further, the pixel electrode driver circuit has a positive power supply connected to a control line of the latch circuit for power supply, and two pairs of wirings extending in vertical and horizontal directions and consisting of a data signal line and one control line, and another control line and a GND line are used for connection to the pixel electrode substrate. Further, the pixel electrode driver circuits have a mirror-symmetry suitable for substrate formation by an FSA method.

Abstract: A liquid crystal display panel comprises a liquid crystal layer disposed between a row electrode group and a column electrode group defining a plurality of pixels arranged in a matrix. Full screen display on the liquid crystal display panel is carried out using a multiple line addressing (MLA) drive method. Partial screen display on the liquid crystal display panel is carried out using a smart addressing (SA) drive method.

Abstract: Provided are an image display device and an image display method capable of reducing the number of signal lines connected between a driver IC and a liquid crystal display portion and of displaying a preferable image. A liquid crystal display portion is divided into 16 division groups in a scanning direction. In order to scan the liquid crystal display portion, a common scanning signal line which is a scanning signal output line of a scanning signal line driver circuit is connected with a selective scanning signal line of each of the 16 division groups during switching for each of the groups. The common scanning signal line is commonly used among the plurality of selective scanning signal lines, so the number of wirings to be connected in the driver IC can be reduced.

Abstract: There is provided a simple matrix liquid crystal panel in which the number of changes in waveform on a column electrode is suppressed without degrading a display quality even when the number of gray scales is increased, and a consumption power can be reduced. Pulse width modulation is performed with a sum total of a plurality of pulses selected in a plurality of frames, and the number of changes in column electrode for displaying a half tone pixel data on a pixel is set as 1 during the plurality of frames. Further, an occurrence order of dividing frames in an odd row is made different from that in an even row and interlaced scanning is conducted. Thus, the consumption power is greatly reduced as compared with the case of conventional pulse width modulation.

Abstract: The quality of a simple matrix type liquid crystal display device is improved. Thus, in a liquid crystal display device in the present invention, in the case of multi-screen drive with divided signal electrodes, wiring electrodes are formed on a first electrode on which plural signal electrodes are formed, and an insulating layer is formed on portions except connecting regions on the wiring electrodes. Further, the wiring electrodes and the signal electrodes are electrically connected with each other in the connecting regions in which the insulating layer is not formed.

Abstract: In a light emitting indicator drive circuit which supplies a current to display elements different in display areas, a constant-current is supplied from a P-channel MOS-FET to a display element and a pulse width control circuit controls a on/off ratio. deterioration information from a deterioration detecting circuit and saved segment area information is calculated, and its result decides a time to supply a current to the display elements as a result of the arithmetic operation. With the above operation, a difference in luminance between the display elements and the degradation of luminance caused by the deterioration can be corrected.

Abstract: A plurality of first layer wirings (15) and a plurality of second layer segment electrodes (20 and 21) are insulated by a plurality of color filters (16) and a smoothing film (18). A plurality of through-holes are formed in portions of a plurality of black matrices by patterning and then a plurality of second layer electrodes are formed, thereby connecting the plurality of first layer wirings to the plurality of second layer segment electrodes.

Abstract: [Problem] It is an object to provide a propulsion apparatus having an improved efficiency and an excellent durability. [Solution] In a range encompassed by an inner wall having a shape of circle locus which is a predetermined, a rotating body 8 is provided for being rotated compulsory around the same axis as the circle locus. In the rotating body 8, a moving body 12 is provided so as to move in a direction of transverse axis of a rotating center. The moving body 12 has a pair of weights at both ends thereof. A diameter of the circle locus and a reach of the rotating body is set at the ratio of 10 to 9. At a surface of the inner wall, there is a swelling wall 14 as a guide member protruding within the predetermined rotating range around the circumference thereof continuously in a gradual curve. While a weight 11 (11A) rotates along the swelling wall 14, the moving body 12 is returned by centrifugal force.

Abstract: A method of driving is provided in which designing of a driver IC is simple, and electric power consumption during partial screen display decreases, when full screen display and partial screen display are mixed in a simple matrix type liquid crystal display panel. An MLA drive is used for high duty drive in performing full screen display, and an SA drive is used for low duty drive in performing partial screen display.

Abstract: Pixel electrode driver circuit is disclosed, which include a data signal line, a first latch circuit composed of a three-stage shift circuit, and a second latch circuit connected to each latch, and in which each output of the second latch circuit is connected to each of electrodes corresponding to pixels in respective colors of red, green, and blue to thereby drive every 2 to 32 electrodes in a time division manner. Further, the pixel electrode driver circuit has a positive power supply connected to a control line of the latch circuit for power supply, and two pairs of wirings extending in vertical and horizontal directions and consisting of a data signal line and one control line, and another control line and a GND line are used for connection to the pixel electrode substrate. Further, the pixel electrode driver circuits have a mirror-symmetry suitable for substrate formation by an FSA method.