Abstract: Aspects of the invention provide a method for starting up a DC-DC converter by which an output voltage can be prevented from overshooting and body diodes of switching devices can be prevented from reverse recovery. In the start-up method, the phases of gate signals of third and fourth switching devices are gradually shifted relative to the phases of gate signals of first and second switching devices. With increase of the phase shift, a voltage on a primary side of a transformer is also increased, and an output voltage is also increased.

Abstract: An organic EL device is provided and, in particular, a top-emission-type organic EL device, which can maintain excellent light emission efficiency over a prolonged period of time. The organic EL device includes a substrate; and an organic EL element that is formed on the substrate and that includes a lower electrode, an organic EL layer, an upper electrode, and a protective layer. The protective layer includes at least one inorganic film provided that at least one film thereof is a SiN:H film having a stretching-mode peak area ratio, as determined by infrared absorption spectrum measurements, of N—H bonds to Si—N bonds that is greater than 0.06 but does not exceed 0.1, and having a stretching-mode peak area ratio, as determined by infrared absorption spectrum measurements, of Si—H bonds to Si—N bonds that is greater than 0.12 but does not exceed 0.17.

Abstract: An electric power system comprises an AC motor, a first DC voltage unit, an inverter as a power converter, being connected between the AC motor and first DC voltage unit, for exchanging power between these two components; and a controlled DC power supply which is connected between an arbitrary spot of a coil of the AC motor and a positive or negative electrode of the first DC voltage unit and which connects at least one semiconductor switching element and a battery as a second DC voltage unit in series.

Abstract: In a tunnel junction element having a ferromagnetic free layer, an insulating layer and a ferromagnetic fixed layer, in order to reduce the current necessary for spin-transfer magnetization reversal operation in the tunnel junction element, the ferromagnetic free layer comprises first and second ferromagnetic layers, a nonmagnetic metal layer is provided between these ferromagnetic layers, the nonmagnetic metal layer is such that magnetic coupling is preserved between the first and second ferromagnetic layers, also such that there is no influence on the crystal growth of the first and second ferromagnetic layers, the first ferromagnetic layer and the second ferromagnetic layer are placed such that the first ferromagnetic layer is in contact with the insulating layer, and the second ferromagnetic layer has a smaller magnetization than the first ferromagnetic layer.

Abstract: A process for producing a color conversion filter uses an ink jet recording method, which can form a color conversion layer at a desired position without the need to separately form partition walls, and a process for producing an organic EL display. The process for producing a color conversion filter includes forming a black matrix having a plurality of opening parts on a transparent substrate, forming at least two types of color , filter layers independently of each other on a black matrix to which dissimilar color filter layers are adjacent, to form a partition wall, at least two of the color filter layers being superimposed on top of each other, and forming a color conversion layer by ink jet recording onto at least one of the color filter layers.

Abstract: A semiconductor device according to embodiments of the invention includes an n?-type drift region; a p-type base region formed selectively in the surface portion of the drift region; an n+-type emitter region and a p+-type body region, both formed selectively in the surface portion of base region; and an n-type shell region between the drift region and the base region, a shell region surrounding the entire region below base region. The shell region is doped more heavily than the drift region. The shell region contains an n-type impurity at an effective impurity amount of 8.0×1011 cm?2 or smaller. A drift region exhibits a resistivity low enough to prevent the depletion layer expanding from collector region, formed on the back surface of the drift region, toward a shell region from reaching the shell region.

Abstract: The object of the present invention is to provide an organic EL device having a structure that resolves a problem of trade-off between decrease in a drive voltage and increase in production yield. The organic EL device of the present invention includes a substrate, a pair of electrodes provided on the substrate, and an organic EL layer sandwiched by the pair of electrodes; the pair of electrodes includes a positive electrode and a negative electrode; the organic EL layer includes at least a light-emitting layer and a hole injection layer that is in contact with the positive electrode; the hole injection layer is formed of an n-type semiconductor host material and a p-type semiconductor guest material; a LUMO level EHIC of the host material and a HOMO level of the guest material or a valence band level EGV satisfy: |EHIC|+0.5 eV?|EGV|>IHIC|?0.6 eV.

Abstract: A method for manufacturing a color filter includes obtaining a color filter, treating the color filter with oxygen plasma, treating the color filter with fluorine plasma and forming one or more color conversion layers. The color filter is obtained by forming on a transparent substrate, multiple color filter layers having respective colors, and banks. The color filter layers are composed of polysiloxane and pigments. The banks are composed of resin and formed at boundaries between color filter layers of different colors. The color conversion layers have respective colors and are formed on the color filter layers by an inkjet method.

Abstract: A high power factor rectifier circuit, provided with switching sections connected to an AC power supply for converting an AC voltage to a DC voltage, is formed with a bypass circuit provided. The bypass circuit, when the voltage of the AC power supply becomes higher than the voltage across a smoothing capacitor provided on the DC output side, makes a charge current flowing from the AC power supply to the capacitor bypass the switching section by making the switching section out of conduction. Thus, a rectifier circuit is provided which can be safely operated without causing any damage, or with minimized damage, even though an inrush current flows at turning-on the power or at recovery from a power interruption.

Abstract: The invention includes a two terminal switching device having two stable resistivity values for each applied voltage, which when a voltage of not more than a first threshold voltage (Vth1) is applied, becomes in a first state having a higher resistivity, whereas when a larger second threshold voltage (Vth2) or more is applied, becomes in a second state having a lower resistivity; a resistance connected in series to the switching device; a terminal for applying a bias voltage (Vt) to both ends of a series circuit of the switching device and the resistance; a first pulse inputting terminal; and a second pulse inputting terminal. The invention provides a simple realization of a flip-flop circuit for a sequential logic circuit.

Abstract: In a power conversion device, a capacitor series circuit is connected in parallel with a direct current power supply, outputs an alternating current voltage having three or more potentials in a half-cycle period with the capacitor series circuit as a direct current input, wherein a neutral point of an alternating current load and an intermediate connection point of the capacitor series circuit are directly connected, the voltage of each of the capacitors is detected, and a zero voltage vector obtained by making each alternating current output of the same potential is adjusted in accordance with the difference between the voltages.

Abstract: A logic circuit includes two two-terminal switching devices and receives first and second pulses as inputs. Each of the two devices has two different stable resistivity values for each applied voltage that is greater than a first threshold voltage (Vth1) and is smaller than a second threshold voltage (Vth2) that is larger than Vth1. Each switching device, when a voltage less than or equal to Vth1 is applied, becomes in a first state having the higher resistivity of the two resistivity values, whereas when a voltage more than or equal to Vth2 is applied, becomes in a second state having the lower resistivity of the two resistivity values. The two devices are connected in series in a direction with uniform polarity to each other. The first and second states are selectively generated in the first and second devices by a combination of inputs of the first and second pulses.

Abstract: This invention provides a surface-emitting display device comprising a plurality of power supply lines 21 connected to a plurality of pixel circuits, respectively, and a power supply bus 22 having a power supply terminal 23 and connected to end portions of the plurality of power supply lines 21 at a prescribed interval, the power supply bus 22 having one or more slits 71, 72 extending along the length direction thereof from the power supply terminal 23 toward the end portions.

Abstract: A power conversion apparatus has a rectification circuit provided for converting AC power supplied from an AC power supply into DC power. The rectification circuit has a configuration in which series circuit whose number corresponds to the number of phases of an input AC are connected in parallel between a positive-side line and a negative-side line. The AC power supply is connected to AC input points, each corresponding to a connection point between a rectifying device and a semiconductor switching device in each of the series circuits, and connected to a point having ground potential through noise suppressing series circuits respectively. In each of the noise suppressing series circuits, a switch unit and a capacitor are connected in series. In this manner, it is possible to provide a power conversion apparatus which can reduce a noise terminal voltage while solving problems in volume and cost simultaneously.

Abstract: In a unit inverter system where multiple unit inverters are connected in parallel, the quantity of operating unit inverters is determined in accordance with an amount of power to be converted. A gate signal of a semiconductor switching element of a unit inverter is turned off after an output current of the inverter is reduced when reducing the quantity of inverter units, thereby improving the partial load efficiency of the system without an adverse effect on the system. A regulator connected to the inverter determines dead time of the inverter according to the output current value and an average output current value of the unit inverters, waits for the determined dead time so as to reduce the output current of the unit inverter, and then turns off the gate signal.

Abstract: An object of this invention is to provide a top-emission type organic EL display in which filling defects of a resin filler material are alleviated during bonding of an organic EL emission panel and a color conversion filter panel with the resin filler material, as well as to provide a method for manufacturing such an organic EL display. An organic EL display of this invention is characterized in having stripe-shaped barrier walls for inkjet application placed on a color conversion filter panel, and a filler material guide wall placed between the length-direction end portions of the barrier walls for inkjet application and a peripheral seal member.

Abstract: A spin valve element driving method, and a spin valve element employing such a method, for causing microwave oscillation in a spin valve element. The spin valve element includes an intermediate layer and a pair of ferromagnetic layers including a fixed layer and a free layer sandwiching the intermediate layer, the fixed layer having a higher coercivity than the free layer, and being magnetized in a direction substantially perpendicular to a film plane thereof. The method includes a driving step of passing current from one of the pair of ferromagnetic layers to the other through the intermediate layer.

Abstract: In order to obtain a memory cell of size 4 F2 to realize cross-point type memory, a magnetic memory element is used having a spin valve structure including a free layer 5, nonmagnetic layer 4, and layer 3. The layer or the free layer includes an N-type ferrimagnetic material, and the magnetic compensation point of the N-type ferrimagnetic material is lower than the temperature reached by the layer when a certain write pulse is applied to control the combination of magnetizations of the free layer and layer, and higher than the temperature reached by the layer when another write pulse is applied. These write pulses can have the same polarity.

Abstract: A color conversion type organic EL display can comprise an organic EL substrate that includes a substrate, a lower reflective electrode, a bank, and an organic EL layer sandwiched between the lower reflective electrode and an upper transparent electrode. The color conversion type organic EL display can further comprise a color filter substrate in which a black matrix and a color filter are formed in a pattern on a transparent substrate by a photo process, and which has a pixel region separated by the black matrix. The organic EL substrate and the color filter substrate can be bonded together and positioned such that the pixel region of the EL substrate and the pixel region of the color filter substrate are opposed.

Abstract: A method is disclosed for creating a low-cost, high-definition color conversion layer using the ink jet method, with the layer having a consistent thickness and not bleeding into adjacent subpixels. A color conversion filter (1000) is characterized by being formed with a bank layer (60) that has a plurality of gently-curved protrusions (63), each of which has a first portion (61) and a second portion (62).