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8289305 |
Backlight unit, liquid crystal display device having the same and control method thereof
A liquid crystal display device, includes: a liquid crystal panel; a point light source which emits light to the liquid crystal panel; and a light source driver which comprises a power input...
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8289237 |
Pixel and organic light emitting display using the same
A pixel of a simplified configuration, and an organic light emitting display using the same are disclosed. The pixel includes an organic light emitting diode; a first transistor connected with a...
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8288952 |
Intelligent user interface including a touch sensor device
The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of...
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8288953 |
Buck constant average current regulation of light emitting diodes
An apparatus includes pulse width modulation (PWM) circuitry configured to generate a PWM signal based on a feedback voltage associated with current flowing through a load, such as one or more...
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8288961 |
LED backlight driving module
The instant disclosure relates to a LED backlight driving module. The driving module utilizes a plurality of second power isolation transformers interconnected to each other in series and connected...
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8287147 |
LED based omni-directional light engine
An LED based omni-directional light engine includes a toroidal lens coupled to a controller circuit board and two or more evenly spaced LEDs mounted to the controller circuit board. The toroidal...
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8288966 |
Color display
A colored light generating element can be configured to, while in an active state, pulse between an off state and an on state. A substantially constant offset voltage or current can be applied to...
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8288933 |
Lamp with energy-saving high-power spiral light tube
An energy-saving lamp with a high-power double spiral energy-saving light tube. The double spiral energy-saving light tube includes two single spiral light tubes having complementary structure. One...
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8288954 |
Primary-side based control of secondary-side current for a transformer
A power control system includes a transformer and a controller regulates a current on a secondary-side of the transformer based on a primary-side signal value. In at least one embodiment, the...
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8288967 |
LED control circuit and method
A LED control circuit and method determine the frequency and duty of a LED driving signal according to a swing control signal and a dimming control signal, respectively. Responsive to the swing...
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8288969 |
Driving apparatus of light emitting diode and driving method thereof
A driving method of a light-emitting diode (LED) adapted to a driving apparatus is provided. The driving method includes receiving a dimming signal, detecting whether the driving apparatus performs...
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8288957 |
System for controlling light sources
A lighting control system (100) includes a first adapter (150) configured to be operationally coupled to a first light source (110) to provide a first power level, and a second adapter (160)...
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8289313 |
Display device and driving method thereof
In a display device, the anode voltage of an organic light emitting element is periodically reset. The control terminal of a driving transistor is periodically reset, and an input data voltage is...
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8288741 |
Apparatus and method for three dimensional ion processing
A method for treating a workpiece. The method includes directing a first ion beam to a first region of a workpiece, wherein the first ion beam has a first ion angular profile of first ions...
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8288965 |
Apparatus and method for switching in added capacitance into high-intensity discharge lamp circuit at preset times
A method and apparatus for controlling power to relatively high power devices by adding or subtracting capacitance. A plurality of capacitors are connected in parallel. The plurality of capacitors...
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8289241 |
Display device
A signal line driving circuit which includes a digital signal sampling circuit, a storage circuit, a time setting circuit and a constant current circuit, is fabricated of TFTs on an insulating...
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8288962 |
HID-lamp control method and circuit
A method and circuit for controlling an HID lamp powered by an HID ballast during warm-up includes gradually increasing the lamp power as the lamp voltage increases. The method includes the steps...
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8288955 |
Method and device for driving a circuit element
Light emitting diodes (LEDs) are commonly used to backlight liquid crystal display screens for mobile telephones and other display devices. It may be desirable for the LEDs to be gradually dimmed...
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8283877 |
Thermal protection circuit for an LED bulb
A light-emitting diode (LED) bulb has an LED within a shell. The LED bulb also includes a driver circuit for providing current to the LED. The drive circuit has a thermal protection circuit, which...
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8283868 |
LED light engine
An integrated Light Emitting Diode (LED) device including multiple LEDs connected to a circuit board, integrated circuit (IC) drivers connected to the circuit board, and a first alternating current...
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8283867 |
Light source turn-on/off controller
A light source turn-on/off controller includes an input section of a turn-on/off timing signal, a PWM signal generating section for generating a pulse signal responding to a rise or a fall of the...
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8283871 |
Method of driving light source and display apparatus for performing the method
A method of driving a light source apparatus includes inverting a direct current voltage to generate a first alternating current voltage, transforming the first alternating current voltage into a...
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8283872 |
Circuit arrangement and method for the operation of high-pressure gas discharge lamps
A circuit arrangement for supplying a lamp wattage on a high-pressure gas discharge lamp in the form of an alternating current having an operating frequency, said operating frequency being...
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8284128 |
Semiconductor device
A semiconductor device is provided in which a transistor which supplies a current to a load (an EL pixel and a signal line) can supply an accurate current without being affected by a variation. A...
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8283874 |
LED lighting system having a reduced-power usage mode
An LED lighting system, with first and second types of LEDs of different efficacies, has a reduced-power usage mode. A control system independently controls first and second control groups of first...
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8283875 |
Holding current circuits for phase-cut power control
Holding current circuits and lighting assemblies comprising same are provided. Holding current circuits may be connected to loads to ensure that the load and holding current circuit together draw...
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8283682 |
Light emitting diode
The present invention comprises a substrate, and at least one serial array having a plurality of light emitting cells connected in series on the substrate. Each of the light emitting cells...
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8283876 |
Circuit for driving an infrared transmitter LED with temperature compensation
Systems and methods to achieve a circuit for driving one or more infrared transmitter LEDs with temperature compensation have been disclosed. In a preferred embodiment of the invention the circuit...
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8284132 |
Organic light emitting display device and method of driving the same
An organic light emitting display device and a method of driving the same. In a method of driving an organic light emitting display device including a second capacitor having a first terminal...
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8283869 |
Semiconductor light emitting circuits including light emitting diodes and semiconductor shunt devices
Semiconductor light emitting circuits include semiconductor light emitting diodes that are serially connected between a pair of input terminals. Four layer semiconductor devices, such as Shockley...
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8284136 |
Pixel circuit, organic light emitting display, and driving method thereof
A pixel circuit includes: an OLED; a second transistor including gate, first, and second terminals coupled to a first scan line, a data line, and a first node, respectively; a fourth transistor...
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8282767 |
Plasma processing apparatus
A plasma processing apparatus including a chamber having an inner wall with a protective film thereon and a sample stage disposed in the chamber in which plasma is generated by supplying...
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8284898 |
Interleaving multi-energy X-ray energy operation of a standing wave linear accelerator
The disclosure relates to systems and methods for interleaving operation of a standing wave linear accelerator (LINAC) for use in providing electrons of at least two different energy ranges, which...
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8284126 |
Organic light emitting display and driving method thereof
An organic light emitting display capable of displaying an image with uniform luminance regardless of deterioration of an organic light emitting diode and threshold voltage and/or mobility of a...
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8284129 |
Light emitting pixel and apparatus for driving the same
A light emitting pixel includes a first organic light emitting diode (OLED) and a capacitor supplying to the first OLED current generated by an electric charge corresponding to a difference between...
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8283870 |
Bypass protection circuit and light emitting diode driving device using the same
A bypass protection circuit connected to a light emitting diode (LED) group in parallel, comprises a switch circuit and a capacitor. The switch circuit comprises a plurality of switch components,...
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8281738 |
Cathode and counter-cathode arrangement in an ion source
The present invention relates to ion sources (14) comprising a cathode (20) and a counter-cathode (44) that are suitable for ion implanters (10). Typically, the ion source is held under vacuum and...
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8283866 |
Electrodeless lamps with externally-grounded probes and improved bulb assemblies
An electrode-less plasma lamps comprises generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded...
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8278832 |
Dimmer circuit of light emitting diode and isolated voltage generator and dimmer method thereof
An isolated configuration dimmer circuit of a light emitting diode (LED) applied to a conventional triac dimmer and a dimmer method are provided. When a dimmer phase angle of the triac dimmer is...
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8278844 |
Energy-saving lamp with remote control and button dimming feature
This invention relates to a kind of dimmable energy-saving lamp with remote control and buttons dimming feature comprising: a power supply module (1), one end of which being connected to municipal...
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8278807 |
Radiofrequency plasma generation device
A device including two plasma generation electrodes, a series resonator having a resonant frequency above 1 MHz and including a capacitor with two terminals, and an induction coil surrounded by a...
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8278817 |
Display device with a plurality of picture elements and electronic device with display device
To improve color reproduction areas in a display device having light-emitting elements. A display region has a plurality of picture elements. Each picture element includes: first and second pixels...
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8279143 |
OLED luminance degradation compensation
A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel...
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8278840 |
Sigma delta current source and LED driver
A circuit arrangement includes a first light emitting diode and a second light emitting diode emitting light of different colors arranged adjacent to each other for additive color mixing. A first...
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8278834 |
PWM control method and device and light adjusting device
A PWM control method increases/decreases a duty ratio of a PWM signal with a predetermined resolution so to control the duty ratio of the PWM signal in the case of a PWM control. The resolution of...
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8277078 |
Light emitting device
A light emitting device includes: a light source unit which has a first and a second LED which are connected in parallel and emit lights of different colors, respectively. The lights of the first...
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8278812 |
Grid for vacuum electron device and method for manufacture of same
A grid component for use with a vacuum electron device (VED), such as an inductive output tube (IOT), includes a skirt that adds structural support and aids in alignment. The grid component has a...
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8278845 |
Systems and methods for providing power and data to lighting devices
Systems and methods are provided for lighting systems, including high output lighting systems for various environments. The lighting systems include a lighting controller for driving lighting...
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8278828 |
Large area organic LED display
An active matrix organic LED display having a matrix of multiple light emitting pixels and electronic drive circuitry for selectively addressing the pixels, each pixel containing an organic LED....
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8278833 |
Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit
A method and corresponding electronic ballast circuit for regulating the ignition voltage of a discharge lamp is described. The circuit includes a discharge lamp with an AC operating voltage...
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