Abstract: For example, a semiconductor device includes one or more first subcontacts electrically conducted to a substrate. At least one of the one or more first subcontacts is formed in an element arrangement region, and has a lower impedance than the substrate. Preferably, at least one of the one or more first subcontacts is adjacent to a circuit element formed in the element arrangement region. Preferably, on the substrate, which is of a first conductivity type, an epilayer of a second conductivity type is formed, and the one or more first subcontacts include a first line having a lower impedance than the substrate, and a semiconductor region of the first conductivity type penetrating through the epilayer to electrically conduct the first line and the substrate to each other.

Abstract: This power transmission apparatus transmits power to a power reception apparatus by means of a magnetic field resonance system by supplying an output AC voltage (VE) of a class E amplifier to a power-transmission side resonance circuit (TT). Before the transmission of power, the output AC voltage (VE) of the class E amplifier is divided, and a voltage obtained by the division is supplied to the power-transmission side resonance circuit (TT). A current amplitude detection value of a power-transmission side coil (TL) at this time is obtained as an evaluation value, and whether to permit execution of power transmission is controlled on the basis of the evaluation value, through determination as to whether a foreign object is present or not.

Abstract: This power transmission apparatus transmits power to a power reception apparatus by means of a magnetic field resonance system by supplying an output AC voltage (VE) of a class E amplifier (440) to a power-transmission side resonance circuit (TT). Before the transmission of power, the output AC voltage (VE) of the class E amplifier (440) is divided, and a voltage obtained by the division is supplied to the power-transmission side resonance circuit (TT). A current amplitude detection value of a power-transmission side coil (TL) at this time is obtained as an evaluation value, and whether to permit execution of power transmission is controlled on the basis of the evaluation value, through determination as to whether a foreign object is present or not.

Abstract: A method for driving a display device having a pair of substrates disposed so as to face each other with a display medium inserted therebetween, comprising altering an a amplitude of a supply voltage applied to each of the pixels during a selection period and an amplitude of a modulated voltage applied to each of the pixels during a nonselection period, corresponding to an ambient temperature level, wherein the amplitude of the supply voltage and the amplitude of the modulated voltage are decreased in a case where the ambient temperature increases, and the amplitude of the supply voltage and the amplitude of the modulated voltage are increased in a case where the ambient temperature decreases, and the rate of amplitude change of the modulated voltage to the change of the ambient temperature is greater than the rate of amplitude change of the supply voltage to the change of the ambient temperature.

Abstract: In a liquid crystal display device of the present invention, a white plate light source such as a cool cathode fluorescent tube is provided on a back surface of a liquid crystal cell, i.e., on a surface opposite to a displaying surface of the liquid crystal cell. On a surface opposite to the displaying surface of the liquid crystal panel, a polarizing plate-equipped semitransmitting reflecting plate is provided. The liquid crystal panel is composed of active elements such as MIM (Metal-Insulator-Metal) elements or TFTs (Thin Film Transistors). With this arrangement, discharge of a charge is suppressed by switching of the active element when a voltage is applied to two types of electrodes sandwitching a liquid crystal layer.

Abstract: In a method for driving a liquid crystal display device in which a scanning electrode signal and a data electrode signal are successively applied to a display panel where picture elements, which are arranged so that a liquid crystal element and a two-terminal non-linear element are connected in series, are arranged in a matrix-like pattern, a scanning electrode signal whose level is switched to a higher and lower levels than a reference level is applied during the selecting period for determining as to whether the picture element is turned on or off and a scanning electrode signal with the reference level is applied during non-selecting period. As a result, production of a residual image and occurrence of crosstalk can be lowered.

Abstract: A method of driving a display device having a plurality of signal electrode lines, a plurality of scanning electrode lines, and a display element and a 2-terminal type non-linear element connected to each other in series between each signal electrode line and each scanning electrode line, in which a selected period is divided into a writing period for charging the display element with more than a certain amount of charge through the 2-terminal type non-linear element and an erasing period following the writing period, and a second voltage which has a polarity reverse to that of the first voltage and does not erase the charge charged in the writing period is applied in the erasing period to turn on the display element. The after-images can be reduced significantly, and the tolerance of the second voltage required to obtain high-contrast can be broadened.

Abstract: A driving method which is used for a display device and which applies different voltages to display elements during the first through third periods in a selection period. During the first period, a first voltage having not less than a predetermined value is applied to each display element through a non-linear element of two-terminal type. During the second period, a second voltage having a level that does not cancel the first voltage is applied upon on-time, while a second voltage having a level that cancels the first voltage is applied upon off-time. During the third period, a third voltage that has an opposite polarity to the first voltage upon on-time and that has the same polarity as the first voltage upon off-time is applied. Here, the third voltage has a non-selection level upon on-time as well as off-time. Thus, an effective voltage, which is applied to the display element selected during the selection period, becomes virtually the same irrespective of display states.

Abstract: A two-terminal nonlinear device according to the present invention includes a lower electrode of a thin Ta film doped with nitrogen which is formed on a substrate, an anodized oxide film formed by anodizing a surface of the lower electrode, and an upper electrode of a metal thin film which is formed on the anodized oxide film, wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.

Abstract: An LCD device includes a first substrate including a plurality of pixel electrodes arranged in a matrix, a plurality of signal wires formed of metal for supplying the plurality of pixel electrodes with an electric charge, and a plurality of two-terminal nonlinear devices for switching connection between the pixel electrodes and the signal wires into one of a conductive state and a non-conductive state; a second substrate located opposite to the first substrate and including a plurality of scanning electrodes arranged parallel to each other and crossing the signal wires; and a liquid crystal layer sandwiched between the first and the second substrates.

Abstract: A two-terminal nonlinear device according to the present invention includes a lower electrode of a thin Ta film doped with nitrogen which is formed on a substrate, an anodized oxide film formed by anodizing a surface of the lower electrode, and an upper electrode of a metal thin film which is formed on the anodized oxide film, wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.