227results about How to "Avoid voltage drop" patented technology

Provided are an organic light emitting display device and a manufacturing method thereof. In the organic light emitting display device, after an auxiliary electrode having a multilayer structure including different kinds of metals different in etching speed is formed, a void is formed within the auxiliary electrode upon formation of an anode. The resulting structure is created by a simplified process, with contact reliability between a cathode and the auxiliary electrode being enhanced, while resistance of the cathode is reduced.

A flat panel display that can prevent a voltage drop of a driving power and, at the same time, minimizes the characteristic reduction of electronic devices located in a circuit region where various circuit devices are located includes: a substrate; an insulating film arranged on the substrate; a pixel region including at least one light emitting diode, the pixel region arranged on the insulating film and adapted to display an image; a circuit region arranged on the insulating film and including electronic devices adapted to control signals supplied to the pixel region; and a conductive film interposed between the substrate and the insulating film in a region corresponding to the pixel region and electrically connected to one electrode of the light emitting diode.

A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells in a stacking direction. At one end of the stack body, first and second dummy cells are provided. At the other of the stack body, third and fourth dummy cells are provided. Each of the first to fourth dummy cells includes a first metal separator and a second metal separator. The first metal separator and a first metal separator of the power generation cell have substantially the same shape. The second metal separator and a second metal separator of the power generation cell have substantially the same shape.

A power source circuit for a high frequency power amplifying circuit, that can be used for a portable telephone of the GSM or WCDMA and a portable telephone capable of performing communications in two or more communication systems such as the GSM and CDMA. The power source circuit is constructed by a first direct current power source circuit such as a series regulator whose power efficiency is not high but which reaches a high level quickly, and a second direct current power source circuit such as a switching regulator, which does not reach the high level quickly but whose power efficiency is high. When the power source voltage has to reach the high level at high speed, both of the series regulator and the switching regulator are simultaneously operated. When the output power source voltage reaches a predetermined level, the operation of the series regulator is stopped.

Upon power failure of a commercial power source, an automatic switching device switches to power supply from a hybrid vehicle. An ECU of the vehicle, when receiving a request for generation of a commercial AC voltage, sets an upper-limit power generation amount based on a remaining amount of fuel. The ECU transmits the upper-limit power generation amount via an antenna to an on-premises ECU, while controlling a power generation amount based on the upper-limit power generation amount. The on-premises, when receiving the upper-limit power generation amount, controls the load state such that commercial AC power is supplied firstly to a first load of priority level 1, according to proprieties registered in advance, and such that the amount of the power supplied to the electric loads does not exceed the upper-limit power generation amount.

An organic light emitting display including a scan signal line forwarding a scan signal, a data line sending a data signal and a pixel coupled to the scan signal line and the data line, the organic light emitting diode display, wherein the pixel includes a first switching transistor transmitting a data signal from the data line in response to the scan signal of the scan signal line, a driving transistor, coupled to the first switching transistor, controlling driving current from a first power source line, a storage capacitor coupled between the driving transistor and the first power source line, an organic light emitting diode, coupled between the driving transistor and a second power source line, displaying an image with the driving current controlled by the driving transistor, an initial switching transistor, coupled between the storage capacitor and an initial power source line, initializing the storage capacitor, and a switching transistor for applying a reverse bias, coupled between the second power source line and the initial power source line, applying a reverse bias voltage to the organic light emitting diode.

An oxide semiconductor thin film transistor and a flat panel display device incorporating the same oxide semiconductor thin film transistor. The thin film transistor includes a gate electrode formed on the substrate, a gate insulating layer formed on the substrate and covering the gate electrode, an oxide semiconductor layer formed on the gate insulating layer and covering the gate electrode, a titanium layer formed in a source region and a drain region of the oxide semiconductor layer, and source and drain electrodes respectively coupled to the source region and the drain region through the titanium layer and made of copper. The titanium layer reduces the contact resistance between the source and drain electrodes made of copper and the oxide semiconductor layer, forms a stable interface junction therebetween, and blocks a diffusion of copper.

To provide a nonvolatile memory device suppressing a reduction of a data retention characteristic even if charges injected and stored into a local area of a nitride film is redistributed to achieve a reduction of voltage, the nonvolatile memory device in which hot electrons are injected into the local area of the nitride film at one or both of source•drain regions side to store data in a memory transistor is satisfied with a standard for evaluating a film quality of the nitride film, the standard being defined by one of the followings: a density of the bond group of silicon and hydrogen being under 1×1021 cm−3; an extinction coefficient in an ultraviolet region at a wavelength of 240 nm being under 0.10 or the extinction coefficient in 230 nm being under 0.14; an optical energy, a peak wavelength of an luminance spectrum, or a peak energy thereof.

An imaging system comprising a parabolic reflector having a base and defining a first axis, a light source disposed proximate the base essentially along the first axis, an imaging device comprising a zooming lens having a second axis, the imaging device being disposed in front of the light source along the first axis such that the second axis and the first axis are essentially coincident.

There is provided a transmission means (3) configured to transmit a modulated signal obtained by modulating data, a transmission electrode (8) that induces an electric field based on the modulated signal in an electric field transmission medium (20), a first reactance means (2) that is provided between the electric field transmission medium (20) and an earth ground (14) and configured to cause resonance with parasitic capacitance produced between a ground (6) the transmission means (3) and the earth ground (14), parasitic capacitance produced between the electric field transmission medium (20) and the ground (6) of the transmission means (3) and parasitic capacitance produced between the electric field transmission medium (20) and the earth ground (14), and a second reactance means (1) provided between an output of the transmission means (3) and the ground (6) of the transmission means (3) or between the transmission electrode (8) and the ground (6) of the transmission means (3).