6932 results about "Electron device" patented technology

In a thin film transistor (1), a gate insulating layer (4) is formed on a gate electrode (3) formed on an insulating substrate (2). Formed on the gate insulating layer (4) is a semiconductor layer (5). Formed on the semiconductor layer (5) are a source electrode (6) and a drain electrode (7). A protective layer (8) covers them, so that the semiconductor layer (5) is blocked from an atmosphere. The semiconductor layer (5) (active layer) is made of, e.g., a semiconductor containing polycrystalline ZnO to which, e.g., a group V element is added. The protective layer (8) thus formed causes decrease of a surface level of the semiconductor layer (5). This eliminates a depletion layer spreading therewithin. Accordingly, the ZnO becomes an n-type semiconductor indicating an intrinsic resistance, with the result that too many free electrons are generated. However, the added element works on the ZnO as an accepter impurity, so that the free electrons are reduced. This decreases a gate voltage required for removal of the free electrons, so that the threshold voltage of the thin film transistor (1) becomes on the order of 0V. This allows practical use of a semiconductor device which has an active layer made of zinc oxide and which includes an protective layer for blocking the active layer from an atmosphere.

An electronic device includes an upper cover, a lower cover combined with the upper cover, and a heat conducting pillar. An accommodating space is formed by the upper cover and the lower cover. The heat conducting pillar is disposed in the accommodating space and physically connected with the upper cover and the lower cover to balance the temperature of the upper cover and the lower cover.

There is provided an electric device which can prevent a deterioration in a frequency characteristic due to a large electric power external switch connected to an opposite electrode and can prevent a decrease in the number of gradations. The electric device includes a plurality of source signal lines, a plurality of gate signal lines, a plurality of power source supply lines, a plurality of power source control lines, and a plurality of pixels. Each of the plurality of pixels includes a switching TFT, an EL driving TFT, a power source controlling TFT, and an EL element, and the power source controlling TFT controls a potential difference between a cathode and an anode of the EL element.

Provided are organic n-doped electron transport layers comprising at least one electron transport material and at least one electron rich dopant material and organic p-doped hole transport layers comprising at least one hole transport material and at least one electron deficient dopant material.

An energy harvesting circuit includes one or more broadband or narrow band antennas to detect WIFI (wireless fidelity) or other RF (radio frequency) signals. The signals are rectified and voltage multiplied, and the resultant DC voltage is provided to a power management circuit. The output of the power management circuit charges a lithium battery or other storage device within the energy harvesting circuit. The energy stored in the battery or storage device is provided through a DC / DC converter circuit to a USB output connector to power or recharge the batteries of an external electronic device connected to the USB output connector of the energy harvesting circuit.

A rechargeable, stackable, thin film, solid-state lithium electrochemical cell, thin film lithium battery and method for making the same is disclosed. The cell and battery provide for a variety configurations, voltage and current capacities. An innovative low temperature ion beam assisted deposition method for fabricating thin film, solid-state anodes, cathodes and electrolytes is disclosed wherein a source of energetic ions and evaporants combine to form thin film cell components having preferred crystallinity, structure and orientation. The disclosed batteries are particularly useful as power sources for portable electronic devices and electric vehicle applications where high energy density, high reversible charge capacity, high discharge current and long battery lifetimes are required.

In an electron device in which plural thin film transistors each having at least a source electrode, a drain electrode, a semiconductor region including a channel, a gate insulation film and a gate electrode are provided on a substrate, a device separation region provided between the plural thin film transistors and the semiconductor region are constituted by a same metal oxide layer, and resistance of the semiconductor region is formed to be lower than resistance of the device separation region.

A liquid crystal device includes a scanning line driving circuit, a data line driving circuit, a first VDD power supply wiring line that supplies power to the data line driving circuit, a second VDD power supply wiring line that supplies power to the scanning line driving circuit, and a common wiring line that electrically connects the first VDD power supply wiring line and the second VDD power supply wiring line to each other in an integrated manner. The common wiring line includes electrical conductors, a wiring line, and contact holes.

In a portable electronic device (100) having a plurality of near field communication applications stored within a plurality of execution environments, an application discovery manager (311) is configured to automatically select and launch one or more of the near field communication applications. A near field communication circuit (300) receives a near field communication request from an external near field communication device (700). The application discovery manager (311) identifies a near field communication technology, a protocol, and an application identifier and then references a registry table (313) to determine identification parameters corresponding with the identified information. The application discovery manager (311) then selects a near field communication application and launches it. The application discovery manager (311) further configures a routing switch (316) to direct data between the near field communication circuit controller (301) and the appropriate execution environment.

An electrophoresis device includes a pair of substrates, a plurality of pixel electrodes, and a common electrode formed on the pair of substrates, a liquid material formed by dispersing charged particles sealed between the pair of substrates and a driving circuit for applying a voltage to the pixel electrodes and the common electrode to generate an electric field therebetween. When display image is changed, the driving circuit generates a first electric field between all the pixel electrodes and the common electrode to delete the image displayed by that time over the entire display region. Then, when new display image is written, the driving circuit generates a second electric field between the pixel electrodes corresponding to display and the common electrode, and generates a third electric field between the common electrode and the pixel electrodes not corresponding to display.

Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.

A display device is disclosed. The display device includes: a pixel array part; and a drive part that drives the pixel array part. The pixel array part includes row-wise first scan lines and second scan lines, column-wise signal lines, pixels arranged in a matrix form on parts where the lines intersect, and power supply lines and ground lines that supply power to the respective pixels. The drive part includes a first scanner that sequentially supplies first control signals to the respective first scan lines and line-sequentially scans the pixels in units of rows, a second scanner that sequentially supplies second control signals to the respective second scan lines according to the line-sequential scan, and a signal selector that supplies video signals to the column-wise signal lines according to the line-sequential scan.

A circular-polarization dipole helical antenna is used for electronic device and satellite terminal and includes a base, and an antenna conductor arranged on surface of the base. The antenna conductor includes a plurality of metal conductors with high Q value and anti-oxidation property and continuously and helically coated on surface of the base. The base is made of low loss and high dielectric constant material. An unbalance-to-balance circuit module connects two signal-feeding ends to the base with phase difference of 180 degree. The problems of narrow bandwidth, low efficiency, complicated structure and precise manufacture can be solved.

A wireless charger charges a storage battery of a portable electronic device in a wireless manner (non-contacting or contact-less) so that a variation of charging efficiency is not serious though the storage battery is placed any position of the wireless charger. The wireless charger is provided with a primary coil for generating a magnetic field so as to charge a subject, which is provided with a secondary coil, by means of inductive coupling with the secondary coil. The primary coil includes an outer coil arranged with a predetermined winding number and a predetermined size; and at least one inner coil arranged to be included inside the outer coil. The outer coil and the inner coil are arranged so that, when a primary current is applied to the outer coil and the inner coil, magnetic fluxes generated in the outer coil and the inner coil are formed in the same direction.

A cathode potential controller for controlling a common cathode potential applied to a self light emission type display panel in which an emission state of each of pixels is driven and controlled in accordance with an active matrix drive system, the cathode potential controller including: a self light emitting element; a constant current source; an electrode-to-electrode voltage measuring portion; a cathode potential determining portion; and a cathode potential applying portion.

A fluorine treatment that can shape the electric field profile in electronic devices in 1, 2, or 3 dimensions is disclosed. A method to increase the breakdown voltage of AlGaN / GaN high electron mobility transistors, by the introduction of a controlled amount of dispersion into the device, is also disclosed. This dispersion is large enough to reduce the peak electric field in the channel, but low enough in order not to cause a significant decrease in the output power of the device. In this design, the whole transistor is passivated against dispersion with the exception of a small region 50 to 100 nm wide right next to the drain side of the gate. In that region, surface traps cause limited amounts of dispersion, that will spread the high electric field under the gate edge, therefore increasing the breakdown voltage. Three different methods to introduce dispersion in the 50 nm closest to the gate are described: (1) introduction of a small gap between the passivation and the gate metal, (2) gradually reducing the thickness of the passivation, and (3) gradually reducing the thickness of the AlGaN cap layer in the region close the gate.

A portable electronic device (100) has a long sideways housing (10) whose both ends are held by the hands of a user and an LCD fitted in the surface of the housing (10). Bulges (42L, 42R) projecting outward are formed on both end portions of the rear face of the housing (10), which both end portions being held by fingers of the user holding the housing. When the fingers and palms of user's hands are placed along the bulges (42L, 42R) with the fingers and palms bent naturally, the device fits the hands and operability is less likely to be impaired even the user violently moves in game play with the device.

An electronic device and method are described for detecting a predefined gesture that is a specified pattern of movement of an external object relative to the electronic device. The method includes providing as part of the electronic device a sensing assembly including at least one photoreceiver and a plurality of phototransmitters, wherein each phototransmitter is positioned to emit infrared light away from the electronic device about a corresponding central transmission axis, wherein each central transmission axis is oriented in a different direction with respect to the others. The emission of infrared light by each of the phototransmitters is controlled during each of a plurality of sequential time periods, and wherein the external, object moves in the specified pattern of movement during the plurality of sequential time periods. For each of the plurality of phototransmitters and for each of the plurality of sequential time periods, a corresponding measured signal indicative of a respective amount of infrared light which originated from that phototransmitter during that time period and was reflected by the external object prior to being received by the photoreceiver is generated, and the measured signals are evaluated to detect the predefined gesture.

Providing a light emitting device capable of suppressing the variations of luminance of OLEDs associated with the deterioration of an organic light emitting material, and achieving a consistent luminance. An input image signal is constantly or periodically sampled to sense a light emission period or displayed gradation level of each of light emitting elements of pixels and then, a pixel suffering the greatest deterioration and decreased luminance is predicted from the accumulations of the sensed values. A current supply to the target pixel is corrected for achieving a desired luminance. The other pixels than the target pixel are supplied with an excessive current and hence, the individual gradation levels of the pixels are lowered by correcting the image signal for driving the pixel with the deteriorated light emitting element on as-needed basis, the correction of the image signal made by comparing the accumulation of the sensed values of each of the other pixels with a previously stored data on a time-varying luminance characteristic of the light emitting element.

A hand-held mobile communication device, such as smart telephone, incorporating sensors and signal conditioning modules for measuring signals from external sources of electromagnetic radiation (EMR) in the low, radio, ultraviolet, and infrared spectral ranges. These include the detector for receiving and monitoring electromagnetic fields originating from various external sources of radiation that pose potential health hazards or may interfere with various electronic devices. The mobile phone equipped with such sensors could alternate between communication and monitoring functions. Other integrated EMR sensors are a photodiode for the ultraviolet detection to monitor the user's sun exposure and a thermopile for non-contact measurement of temperature of humans or inanimate objects. This infrared sensor in combination with a photographic digital camera and a pattern recognition signal processing allows measuring temperatures at specific locations and from optimal distances to the surface of the object to enhance accuracy of non-contact temperature measurements.

A pixel having a transistor which controls a current value supplied to a load, a first storage capacitor, a second storage capacitor, and first to fourth switches is included. After the threshold voltage of the transistor is held in the second storage capacitor, a potential in accordance with a video signal is input to the pixel. Voltage obtained by adding a potential in which the potential in accordance with the video signal and the first storage capacitor are capacitively divided to the threshold voltage is held in the second storage capacitor in this manner, so that variation of a current value caused by variations in the threshold voltage of the transistor is suppressed. Thus, desired current can be supplied to the load such as a light-emitting element. In addition, a display device with little deviation from luminance specified by the video signal can be provided.

A connector charger is disclosed, which is adapted to electrically connect to an external electronic device by a connection port arranged at an end of its casing while the connection port is electrically connected to a charging circuit device and at least a contact disposed inside the casing. By arranging at least a socket on the casing at a position corresponding to each contact for enabling rechargeable batteries to plug in the casing therefrom and connect electrically to the corresponding contact, the power of the external device can be transmitted to the connector charger by the electric circuit formed of the connection port, each contact and the electronic device, wherein the charging circuit device is enabled to convert the power of the external electronic device into electric current suitable for the rechargeable batteries and then the converted electric current is fed to the rechargeable batteries through the contact for charging the same.

Electronic devices and methods are disclosed to provide and to test a physically unclonable function (PUF) based on relative threshold voltages of one or more pairs of transistors. In a particular embodiment, an electronic device is operable to generate a response to a challenge. The electronic device includes a plurality of transistors, with each of the plurality of transistors having a threshold voltage substantially equal to an intended threshold voltage. The electronic device includes a challenge input configured to receive the challenge. The challenge input includes one or more bits that are used to individually select each of a pair of transistors of the plurality of transistors. The electronic device also includes a comparator to receive an output voltage from each of the pair of transistors and to generate a response indicating which of the pair of transistors has the higher output voltage. The output voltage of each of the pair of transistors varies based on the threshold voltage of each of the pair of transistors.

A protective case assembly including a shell defining an open front and having sides as well as a base which adjoins the shell's sides is disclosed. The shell attaches to the handheld device by being sized and configured to fit over the backside and sides of the device. In addition, the case assembly includes an elongated elastic strap of predetermined length and width which is attached at its ends to the back of the shell. The strap is positioned against the base and is sufficiently taut to enable the handheld device to be held in one hand and operated with the thumb of the same hand when up to two of the three middle fingers also of the same hand are placed under the taut strap.