Abstract: An organic light emitting device with a latent activator material is presented. An organic light emitting device including activation products of a latent activator material is also presented. Embodiments of patterned organic light emitting devices are also contemplated wherein patterning can occur prior or post fabrication of the devices. A method of fabricating an organic light emitting device with a latent activator material or with activation products of an activator material is also provided.

Abstract: Three new cerium (Ce) based phosphor materials based on nitride and oxy-nitride compounds emit yellow or blue to green photons upon excitation by ultraviolet (UV) or blue light radiation. The two yellow emitting compounds belong to the quartenary Ca—Al—Si—N system with distinct structures. These bright yellow phosphors can be used for white light applications by combining either a blue light emitting diode (LED) and a yellow phosphor, a blue LED and green-orange phosphors, or an ultraviolet (UV) LED with three phosphors, i.e., red, blue and green (RGB) phosphors. The bright blue-green phosphor, which may be described by Sr2SiO4-?N?, can be used in the UV LED plus 3 RGB phosphors setup.

Abstract: Apparatus including a support body; and an organic semiconductor composition body including at least one of the group including polystyrene, poly(9,9?-dioctylfluorene-co-bithiophene) (“F8T2”) and a cellulose, and an organic molecule including a chain-like core region having two ends and having at least three conjugated aromatic rings; and including at the two ends, branched or unbranched groups R1 and R2 respectively, each including a branched or unbranched C5- to C20-alkyl group. Printing inks including such molecule.

Abstract: The present invention relates to OLEDs comprising an electron impeding layer between the cathode and the emissive layer. An organic light emitting device, comprising: an anode; a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; an electron transport layer; and a cathode disposed, in that order, over a substrate.

Abstract: It is an object of the present invention to provide a novel material which has excellent light-emitting efficiency, a light-emitting element provided with the novel material, and a light-emitting device using the light-emitting element. The present invention provides an anthracene derivative represented by the following general formula (1).

Abstract: There is provided an organic electroluminescence device including: a pixel electrode which is formed on a substrate in an island shape; a functional layer which covers the surface of the pixel electrode; and an opposing electrode which is laminated on the functional layer, wherein a taper angle between the side surface of the pixel electrode and the surface of the substrate is 20° or less.

Abstract: A trans-reflective organic electroluminescent panel comprises a substrate, several controlling components and displaying regions formed on the substrate. The displaying regions are electrically connected to the controlling components, and each display region has a trans-reflective organic electroluminescent device (OELD). The trans-reflective OELD at least comprises a transparent electrode formed on the substrate, a light emitting layer formed above the transparent electrode, a reflective electrode formed above the light emitting layer and a semi-reflecting layer. Light generated from the light emitting layer emits toward the transparent electrode to form a light path, and the semi-reflecting layer is disposed in the middle of the light path. Also, a proper proportion of the area of the semi-reflecting layer to the area of the transparent electrode is determined for improving the luminescence and color performances of the trans-reflective organic electroluminescent panel.

Abstract: An organic electroluminescent device (1) comprising, a cathode (80), an anode (20), an emitting layer (50) provided between the cathode and the anode, and at least a first layer (30) and a second layer (40) stacked between the anode (20) and the emitting layer (50) in this order from the anode (20) side, the first layer (30) having a hole mobility of 7.0×10?4 (cm2/Vs, electric field intensity: 2.5×104 (V/cm)) or more, the second layer (40) having a hole mobility of 7.0×10?4 (cm2/Vs, electric field intensity: 2.5×104 (V/cm)) or more, and a main compound which forms the first layer (30) differing from a main compound which forms the second layer (40).

Abstract: According to an aspect of the invention, there is provided an organic electroluminescent element including, between a pair of electrodes, a plurality of layers including at least one light-emitting layer, wherein at least one layer of the plurality of layers contains a main component and an accessory component (dopant), and a volume ratio of the main component to the accessory component varies in proportion to a distance from an electrode terminal.

Abstract: A manufacturing method of an organic light emitting diode (“OLED”) includes forming an anode on a substrate, forming an inorganic buffer layer on the anode, forming a hole transport layer on the buffer layer, forming a light emission layer on the hole transport layer, forming an electron transport layer on the light emission layer, and forming a cathode on the electron transport layer. The forming an inorganic buffer layer includes thermal evaporation and oxidation.

Abstract: A display panel including a plurality of pixels. Each pixel includes: a light emitting element; a pixel circuit having a driving transistor connected to the light emitting element in series; a data line to which a data current is supplied through the pixel circuit; a scanning line for selecting the pixel circuit; a first insulation film to cover the data line; and a second insulation film made of a material different from the first insulation film, to cover the data line and the first insulation film, wherein the following expression is satisfied.

Abstract: A plasma display panel and a method of manufacturing the same are disclosed. The plasma display panel includes a plurality of partition walls formed on a substrate such that the partition walls are arranged at predetermined intervals, auxiliary partition walls formed between the neighboring partition walls on the substrate, and at least one groove, having a predetermined depth, formed at the upper part of each auxiliary partition wall.

Abstract: The present invention aims to ensure luminosity while improving evacuation characteristics in a plasma display panel. First ribs (112) that separate a plurality of cells from each other and second ribs (113) are formed in stripe patterns so as to intersect with each other on a surface of a first substrate (107), a surface of a second substrate opposes tops of the first ribs, and a height of the ribs at intersections (112b) of the first and second ribs intersect is lower than other parts of the first ribs (112a).

Abstract: In a plasma display apparatus, as a filter comprises a dark-colored part, contrast characteristics are improved and as palladium (Pd) is comprised in an electromagnetic wave shielding layer of the filter, a manufacturing cost can be reduced. The plasma display apparatus comprises a plasma display panel that displays an image; a plasma display panel that displays an image; and a filter provided to a front of the plasma display panel; the filter comprises: a substrate; a metal layer formed on the substrate; a base layer formed on the substrate; and a dark-colored part provided to the base layer, wherein a traveling direction of the dark-colored part has a angle from 5° to 80° on the basis of the bottom of the base layer.

Abstract: A plasma lighting system having a thin metallic film resonator includes: an electrodeless bulb emitting light by making luminous material filled therein converted into plasma state; and a resonator housing the electrodeless bulb in an inner space, transmitting the light generated from the electrodeless bulb, and blocking the microwave generated from a microwave generator and applied to the inner space from being leaked out so that a resonance mode is provided to make the electrodeless bulb emit light, wherein the resonator is a thin metallic film resonator including a thin metallic film formed in a cylindrical shape and a supporting member extended along the inner peripheral surface of the thin metallic film so as to support the thin metallic film.

Abstract: The invention is directed to a lighting device, particularly a high-pressure metal halide lamp, wherein a material combination of the body, frit and base materials is selected such that: a. the Coefficient of Thermal Expansion of the material of the frit material (CTEfrit) matches with the Coefficients of Thermal Expansion of the material of the lamp base (CTEbase) and the material of the body (CTEbody), respectively, or, b. the material of the frit (CTEfrit) bridges with the Coefficients of Thermal Expansion of the material of the lamp base (CTEbase) and the material of the body (CTEbody), respectively, at least at the joining surfaces of the body, frit and base materials, to sustain a hermetic bonding and withstand pressure and temperature conditions.

Abstract: The invention relates to a bonding system method and for the fabrication of a bonding system, as well as to a light device formed using the method of the invention. The bonding of the two components which are to be joined, whereby at least one of the two components consists at least partially, preferably completely of glass or glass-ceramics, in other words of a glass-based material, is achieved by way of the following methods on their own merit. Through material sealing when utilizing an inorganic glass-based solder material or through sealing mechanisms without solder material by utilizing tensile stress and/or compressive strain conditions, at least in a high temperature range.

Abstract: A sulfur lamp including a power supply that supplies electrical power includes a transparent bulb having a space inside that contains sulfur. Additionally, a plurality of electrodes may be provided on an outside surface of the transparent bulb. Further, one end of each electrode may be connected to the power supply so that the sulfur is excited by an electric discharge to emit light. Therefore, the changing of sulfur contained in the space of the bulb into a plasma phase using the electrodes (not microwaves) avoids a need to use a magnetron, which has a low energy transfer rate, thereby increasing a system efficacy and saving a cost of replacing the magnetron with a new one.

Abstract: A series-connected string of light bulbs, operating on AC voltage, each having connected thereacross a voltage regulating shunting circuit which regulates the voltage across an empty or otherwise inoperative socket so as to maintain unidirectional current across each of the remaining sockets in the string during one-half of an AC cycle, thereby insuring continuous but dimmed illumination of the light string. The voltage regulating shunting circuit of the present invention is a silicon rectifier diode connected in series with a voltage regulating diode. The voltage regulating diode may be an array of silicon diodes or a Zener diode. The voltage regulating shunting circuit can be mass produced by using conventional manufacturing techniques.

Abstract: A lamp memory module is provided for recording lamp serial numbers, providing a ‘lamp-inserted’ interlock for preventing operation of the lamp when the lamp is not properly installed, and for collecting and storing lamp operational data such as lamp use (time), lamp strikes and various system temperatures.

Abstract: Embodiments of reflecting light off surfaces are disclosed.

Abstract: An electricity controller is provided which comprises a first power control means for controlling output power from power generator 4 to a first level during a first period of start-up time for feeding, a second power control means for controlling output power from power generator 4 to a second level lower than first level during a second period after the first period, and a third power control means for controlling output power from power generator 4 to a third level greater than the second level and lower than the first level during a third period after the second period. A discharge tube 2 is heated during the first period for supplying a large amount of electric power to discharge tube 2 to elevate the tube temperature and thereby uniformly disperse mercury vapor in discharge tube 2.

Abstract: A fluorescent lamp lighting apparatus according to the present invention comprises an initial illuminance correction control circuit which sets a fluorescent lamp to an initial illuminance correction control lighting mode, a switching portion which changes the fluorescent lamp from the initial illuminance correction control lighting mode to an external control dimming mode when a predetermined external dimming signal is detected, and a control portion which gradually dimming so as to achieve a dimming level of a switched mode when switching the initial illuminance correction control lighting mode and the external control dimming mode, and control so as to achieve a dimming level corresponding to a cumulative lighting time of the fluorescent lamp when the changed mode is the initial illuminance correction control lighting mode.

Abstract: Provided is an electrodeless sulfur lamp including a power supply supplying electrical power, a transparent bulb which has a space inside it, with sulfur being contained in the space, and a coil connected to the power supply, which is wound around an outside surface of the transparent bulb and which induces electric discharge by combining magnetic fields. The exclusion of the magnetron in the sulfur lamp increase a system efficacy and saves a cost for the magnetron. Also, it is possible to prevent the coil from blocking light emitted from the main electric discharge sphere 11, because the coil is not wound around the main electric discharge sphere.

Abstract: Described is a plasma electrode-less lamp. The device comprises an electromagnetic resonator and an electromagnetic radiation source conductively connected with the electromagnetic resonator. The device further comprises a pair of field probes, the field probes conductively connected with the electromagnetic resonator. A gas-fill vessel is formed from a closed, transparent body, forming a cavity. The gas-fill vessel is not contiguous with (detached from) the electromagnetic resonator and is capacitively coupled with the field probes. The gas-fill vessel further contains a gas within the cavity, whereby the gas is induced to emit light when electromagnetic radiation from the electromagnetic radiation source resonates inside the electromagnetic resonator, the electromagnetic resonator capacitively coupling the electromagnetic radiation to the gas, which becomes a plasma and emits light.

Abstract: This backlight light source drive device includes a plurality of backlight light source drive circuits which drive a plurality of respective backlight light sources, and a control circuit which turns those drive circuits ON and OFF. Each of the drive circuits includes a protection signal output circuit which, when its corresponding tube electrical current decreases, outputs to the control unit a protection signal for stopping the operation of all of the drive circuits. This protection signal output circuit includes an LED illumination circuit which, when the tube electrical current thus decreases, illuminates an LED to indicate the anomalous state, and an LED power supply circuit which always supplies power to the LED illumination circuit. And the control circuit stops the operation of all of the plurality of backlight light source drive circuits, when it receives a protection signal from any one or more of the protection signal output circuits.

Abstract: A method and apparatus for controlling a power supply to prevent instabilities due to dynamic loads in RF plasma processing systems, operating at frequencies of from 1 MHz and up 1 MHz and above. The apparatus includes a power source, a power converter receiving power from the source, the power converter providing a constant output power controlled by varying at least one of input voltage or switching frequency, and an RF generator receiving constant power from the power converter.

Abstract: A constant speed barrier operator comprises a controller, a memory unit, a potentiometer, a pulse counter, and a motor control. The potentiometer and pulse counter monitor the position and speed of an access barrier. As the access barrier is moved between open and closed positions the controller samples the position and speed of the access barrier. These samples are used to analyze whether the speed at a given point deviates from a predetermined speed selected for the access barrier. If a variation exists, the controller takes corrective action by changing power settings for the motor for a given access barrier position.

Abstract: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that is able to effectively reject false brake pulses, avoid erroneous processing due to fluctuating battery voltage levels, and reduce the sensitivity to variations in motor current signals due to dynamic motor load, manufacturing variation, system aging, temperature, brush bounce, EMI, and other factors. The system and method also include an improved ability to multiplex additional external motor drivers to the motor control circuitry, select between sequential and simultaneous drive modes using an SPI bit, and monitor the system controller for an error condition and simultaneously driver motors in response to the error condition.

Abstract: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that is able to effectively reject false brake pulses, avoid erroneous processing due to fluctuating battery voltage levels, and reduce the sensitivity to variations in motor current signals due to dynamic motor load, manufacturing variation, system aging, temperature, brush bounce, EMI, and other factors. The system and method also include an improved ability to multiplex additional external motor drivers to the motor control circuitry, select between sequential and simultaneous drive modes using an SPI bit, and monitor the system controller for an error condition and simultaneously driver motors in response to the error condition.

Abstract: A motor control apparatus includes a first FG pattern for generating a first induced voltage attendant upon rotation of the rotor of a motor; a second FG pattern for generating a second induced voltage due to noise; a differential amplifier for differentially amplifying the first and second induced voltages, which are input thereto; and a motor speed control unit for controlling rotation of the motor so as to achieve synchronization between the output of the differential amplifier and a prescribed frequency signal.

Abstract: A control apparatus for an electrically-powered vehicle that includes an electrical motor, a motor control unit, and a traction control unit that controls a drive force so as to suppress spinning of driving wheels based on an operation request, includes: a driver requesting torque calculation unit that calculates a driver requesting torque; a traction requesting torque calculation unit that calculates a traction requesting torque; a torque command calculation unit that calculates a torque command based on the operation request, the driver requesting torque, and the traction requesting torque, during execution of the drive force control by the traction control unit; and a revolution rate sensor, wherein the torque command calculation unit is adapted to set the torque command to a value greater than zero regardless of the operation request when the revolution rate of the electrical motor is less than or equal to a predetermined value.

Abstract: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that is able to effectively reject false brake pulses, avoid erroneous processing due to fluctuating battery voltage levels, and reduce the sensitivity to variations in motor current signals due to dynamic motor load, manufacturing variation, system aging, temperature, brush bounce, EMI, and other factors. The system and method also include an improved ability to multiplex additional external motor drivers to the motor control circuitry, select between sequential and simultaneous drive modes using an SPI bit, and monitor the system controller for an error condition and simultaneously driver motors in response to the error condition.

Abstract: This invention uses winding connection control and bidirectional on/off switches to supply reasonable level voltage to a motor without a booster. This invention also can raise the speed of the motor to double (or higher) of its original speed in order to free up the rooms in the slots for the additional winding. Besides lowering the battery requirement at starting, this invention can also increase the energy recovery when decelerating at low speed due to the additional turns of the motor winding-2 that produces higher voltage at low speed for charging the battery, hence higher miles per gallon.

Abstract: The method for controlling the hydraulic brushless motor operates the hydraulic brushless motor by switching the conduction timing to a plurality of switching elements. The method for controlling the hydraulic brushless motor includes detecting the oil temperature and advancing the conduction start timing when the oil temperature is lower than or equal to a predetermined value.

Abstract: A method for controlling a fan is provided for adjusting the rotational speed of a fan. The method includes adjusting the rotational speed of the fan from a first mode value to a range of rotational speed variation, wherein the upper bound of the range of rotational speed variation is a second mode value plus a first variation value, and the lower bound of the range of rotational speed variation is the second mode value minus a second variation value; and adjusting the rotational speed of the fan in the range of rotational speed variation during a time period. Thus, a user will not consider the sound from the fan as a noise.

Abstract: A motor control method/device is provided in which a speed change during a deceleration period is stabilized in performing a speed feedback control of a motor. In the motor control method/device, the speed feedback control is performed such that a speed of a body driven by the motor is consistent with a predetermined target speed. A deceleration directive corresponding to time elapsed since a predetermined deceleration control start timing is generated as the target speed using a deceleration function of the elapsed time, to perform the speed feedback control based on the deceleration directive, during a deceleration control period. The deceleration control period starts from the deceleration control start timing and ends when the driven body is stopped. The deceleration function monotonically decreases from the deceleration control start timing until the deceleration directive becomes zero (0) and its derivative is a monotonically decreasing or increasing function or a constant.

Abstract: An operating device for an overhead closure which comprises a motor, operatively connected to the closure for opening and closing the closure, and at least one sensor unit mountable either the closure or a support surface bordering the closure. The sensor unit is operable to detect the presence of an obstacle obstructing a travel path of the closure and to generate a signal in response thereto. A control system is in communication with the sensor and with the motor. The control system includes a control unit which receives the signal and provides a sensing feature which stops and/or opens the closure in response to the signal. The control unit deactivates the sensing feature at a selected point prior to an end limit position of the closure. The selected point is determined by the control unit based on a calculated delay characteristic.

Abstract: An input shaft speed signal for rotating a motor at a predetermined rotational speed is output from a rotation control unit to the motor. A rotational speed reduced by a speed reduction device with elastic bodies is detected by an output rotation sensor. A CPU obtains slippage by calculating a reduction ratio based on the detected output shaft speed signal and input shaft speed signal. Load torque is determined from the obtained slippage. A current value to be supplied to the motor is determined so that the motor produces torque corresponding to the load torque. The current value to be supplied from a motor driver to the motor is thus controlled.

Abstract: In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a frequency ratio A (fr/fm) is computed. When the frequency ratio A exceeds the upper limit of a first predetermined range, a warning message is displayed to prompt the user to perform maintenance. When the frequency ratio A exceeds the upper limit of a second predetermined range, an alarm message is displayed and the motor is stopped.

Abstract: The invention relates to a method for power control of an electric motor, in particular a motor for driving the suction fan of a vacuum cleaner connected to an AC mains power supply. The power control is effected by varying the phase angle of the electric alternating quantity supplied to the motor by the use of semiconductor switches. AC power supplied to the motor is switched by using different delay times for the switching in each half-period of a full AC period to suppress odd harmonics, particularly the third harmonic of the mains power line frequency. Half-periods of a full period are mirrored in the next consecutive full period in order to suppress even harmonics, particularly the second harmonic of the mains power line frequency. A set of delay times t1 and t2 are defined and selected to be used in further avoiding critical delay time areas for harmonics and minimize the generation of vibrations.

Abstract: A barrier operator comprises a first measuring apparatus for measuring a current used by a direct current (dc) motor to move a barrier and a second measuring apparatus for measuring a generated voltage of the dc motor. A controller is coupled to the first measuring apparatus and the second measuring apparatus. The controller is programmed to calculate a torque of the dc motor by using the current and to determine when an obstruction exists in the path of the barrier based upon the calculated torque.

Abstract: A technique is disclosed for generating an acceleration profile indicative of a time history of an acceleration of a controlled object, to thereby generate at least one of a target velocity profile indicative of a time history of a target velocity of the controlled object and a target position profile indicative of a time history of a position of the controlled object. This technique includes: storing in a storage, a duration of a non-constant-velocity phase during which the target velocity of the controlled object varies with time; and generating the acceleration profile, based on the duration of the non-constant velocity phase stored in the storage, such that a portion of the acceleration profile which corresponds to the non-constant-velocity phase is generally curved.

Abstract: Disclosed is a method and apparatus for detecting an excitation position of an SRM by comparison of detected currents. The method includes detecting a current by applying a first test voltage to each phase of the SRM, detecting a current by applying a second test voltage to each phase, determining an operation state of the SRM based on a deviation between the currents detected in any one of the phases, determining the operation state of the SRM as a rotation state if the deviation value exceeds a predetermined value, and applying a third test voltage to a phase excited just prior to a current excited phase to detect the current and turning on a phase to be next excited if the detected current value is more than a first reference value, and turning off the phase excited just prior to the presently excited phase if the detected current value is more than a second reference value. The phase excitation position is accurately detected according to the rotating speed without using a position sensor.

Abstract: An electrical machine is controlled with a combination of a physical rotor position transducer and a software position detection algorithm. The physical transducer has a reduced number of sensors, so that it will only give accurate information at high speeds. The software algorithm is executed by a low-cost processor which cannot provide sufficient information at high speeds. The controller blends the information from the two position detectors to produce an economic drive which operates over a large speed range.

Abstract: A brushless synchronous motor is provided in a simple configuration and at a low cost. The brushless synchronous motor comprises a rotor having salient magnets arranged in a circumferential direction, a stator having driving magnetic poles arranged in the circumferential direction, and an exciting coil wound around each driving magnetic pole, where the rotor is made in a non-circular profile. For example, the rotor may comprise a cylindrical body which has at least one flat surface perpendicular to one magnetic pole direction of the rotor, or a cylindrical body having an elliptic profile with a longer diameter in one magnetic pole direction of the rotor. A detector circuit is associated with each of a predetermined number of exciting coils for outputting a detection signal indicative of the impedance of the exciting coil in accordance with the distance between the driving magnetic pole and rotor, to detect a rotating angle of the rotor.

Abstract: A motor control apparatus for controlling a motor based on an output from a sensor includes a storage unit storing a value according to an excitation power supply to excite the sensor, a PWM output unit outputting a PWM output signal having a pulse width modulated to have a duty ratio corresponding to a value stored to the storage unit, and a filter input with the PWM output signal from the PWM output unit. The sensor is supplied with the excitation power supply based on an output from the filter.

Abstract: A control circuit of rotational speed of a fan is provided, wherein by a switching of a switch unit, a PWM (Pulse Wide Modulation) unit can output a sampling pulse whose period is changing. A voltage is also changing following the period after taking a sample to an AC voltage by the control unit. The voltage after sampling serves as a working voltage of a load unit, so as to enable a fan device and a lamp device of the load unit to achieve effects of adjusting speed and brightness.

Abstract: An apparatus for charging a battery for an electronic device is described. The apparatus includes an array of photovoltaic elements for converting light energy into electrical energy. The apparatus also includes a storage element for storing electrical energy received from the array of photovoltaic elements, and an electrical cord to provide an electrical connection between the storage element and the battery. The array of photovoltaic elements and the storage element are affixed to a mounting that is attachable to and detachable from the electronic device.

Abstract: Method and systems of managing power distribution in switch based circuits. The method and system including a number of switches for controlling power distribution. The method and system further including a number of voltage elevators associated with each switch to facilitate the activation thereof.