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Match Document Document Title
8184071 LED driver circuit and the method thereof  
A method for driving a plurality of LEDs comprises the steps of: driving the plurality of LEDs according to a series of display signals; synchronously detecting the plurality of LEDs in a display...
8174518 Organic light emitting display and method of driving the same  
An organic light emitting display including pixels, each including an organic light emitting diode and a pixel circuit for controlling a supply of an electric current to the organic light emitting...
8138679 Organic electroluminescent light emitting device for restoring normal operation after low-voltage errors  
Provision of a light emitting device having functionality for restoring to normal even if a low-voltage error occurs, by temporarily applying a reverse current to a low-voltage error light emitting...
8134522 LED driving circuit  
An LED driving circuit includes: a current generating circuit configured to generate a drive current corresponding to a voltage level of a drive voltage applied to anodes of the first to fourth...
8130175 Pixel interleaving configurations for use in high definition electronic sign displays  
Pixel interleaving configurations for use in high definition electronic sign displays where each and every scan line includes full red, green, and blue color representation to provide for high...
8125161 Light emitting device driving apparatus and method for driving the same  
The present invention relates to a light emitting device (LED) driving apparatus that constantly maintains the average current flowing onto a plurality of channels. The light emitting device (LED)...
8120280 Circuits and methods for controlling a light source  
A driving circuit for controlling a light source includes a frequency controller and a switch module. The frequency controller is operable for receiving a first dimming signal for controlling the...
8111209 Composite display  
A composite display is disclosed. A first paddle has a first plurality of pixel elements wherein the first paddle is arranged to sweep out a first area during a first paddle cycle. A second paddle...
8049231 Quantum photonic imagers and methods of fabrication thereof  
Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can...
8040293 Shift register and organic light emitting display using the same  
A shift register and an organic light emitting display using the same with a simplified design of a shift register having high reliance, and reduced dead space includes a plurality of stages...
8006019 Method and system for transferring stored data between a media player and an accessory  
Techniques for transferring stored data between a media player and an accessory. In one set of embodiments, one of the media player and the accessory can obtain a unique identifier for a particular...
7990350 Light emitting device, driving method for the same and electronic apparatus  
It is a problem to provide a light-emitting device capable of obtaining a constant brightness without being affected by deterioration in an organic light-emitting layer or temperature change, and...
7990081 Pulse width modulation based LED dimmer control  
Methods and apparatus for implementing and operating pulse width modulation based LED dimmer controllers are described. A synchronization protocol is used to allow control information for the...
7977891 LED driving circuit  
An LED driving circuit is provided for driving an LED module, comprising a transistor switch and a feedback controller. The transistor switch has a control terminal, a first terminal, and a second...
7954955 Projector lamp having pulsed monochromatic microwave light sources  
A light engine for image display projectors has a plurality of monochromatic light sources, typically red, blue and green, combined into one light generation device powered by microwaves pulsed at...
7893633 Method and apparatus for controlling a variable-colour light source  
Disclosed is a control device for controlling a variable-color light source, the variable-color light source comprising a plurality of individually controllable color light sources. The control...
7884370 Organic light emitting diode display and method for manufacturing the same  
A method for manufacturing an organic light emitting diode display includes disposing a crystalline semiconductor layer on a substrate, disposing a gate line, a driving input electrode, and a...
7880404 Controlling current through serial LEDs using a low voltage transistor when using a high voltage driver  
Various circuits are described herein where a series transistor used to control current through a string of LEDs, driven by a high voltage, is not subjected to the high voltage when the transistor...
7864141 Display device and a driving method thereof  
A display device and a driving method thereof are provided. The display device comprises a plurality of pixels, each pixel includes: a light emitting element; a storage capacitor; a driving...
7847783 Controller circuitry for light emitting diodes  
A method according to one embodiment may include supplying power to an LED array having at least a first string of LEDs and a second string of LEDs coupled in parallel, each of the strings includes...
7830084 Display panel  
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...
7808451 Organic electroluminescent display device method and apparatus  
An organic electroluminescent display device connected by a blocking diode in series to an organic light-emitting diode (OLED). Each pixel or subpixel of the electroluminescent display device...
7791115 Organic light emitting display device  
Disclosed is an organic light emitting display, which includes a large quantity of a hydroscopic layer having a good hydroscopic ability by changing a mounting structure of the hydroscopic layer....
7790057 Electroluminescent polymers and use thereof  
The present invention relates to electroluminescent polymers which contain structural units of the formula (1) and to the use thereof. The polymers according to the invention exhibit improved...
RE41484 Light-emitting diode light source control method  
A light-emitting diode (LED) light source control method is disclosed. The light-emitting diode light source control method is used for controlling a composite and a single color LED light source....
7767479 Quantum photonic imagers and methods of fabrication thereof  
Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can...
7768216 Control circuit and method for controlling light emitting diodes  
A control circuit for controlling light emitting diodes comprises a switch for turning on or off a string of light emitting diodes. A combiner generates a control signal from a data signal and a...
7755581 Semiconductor device, display device having the same and electronic appliance  
The present invention provides a semiconductor device and its driving method in which amplitude of a data line is decreased to reduce power consumption. In a reset period, a reset transistor and a...
7755470 Security television simulator  
Method and apparatus for simulating an operating television for the purpose of deterring potential intruders by providing the appearance that one or more occupants are at home. Realistic simulation...
7750917 Method for representing true colors with device-dependent colors on surfaces and for producing paints and coatings matching the true colors  
A method for selecting paints is disclosed. This method includes the steps of selecting true paint colors, displaying device-dependent colors corresponding to the true paint colors in a simulated...
7737949 Driving circuit adapted for use in optical mice  
A control circuit having a drive circuit and a controller adapted for use in optical mice is disclosed. The drive circuit is connected between first and second ports and passes a current between...
7724212 Luminous display for automotive satellite navigation systems  
A luminous display for automotive satellite navigation systems includes a panel equipped with light sources, for example made up of LEDs, arranged in a pre-ordered configuration of discrete...
7724220 Driving system of light emitting diode  
The invention relates to an LED current driving system. The LED current driving system comprises an LED driver. The LED driver comprises at least one LED driving unit for outputting a driving...
7719435 Security television simulator with realistic emulation of television output  
Method and apparatus for simulating an operating television for the purpose of deterring potential intruders by providing the appearance that one or more occupants are at home. Realistic simulation...
7714514 Large area organic electroluminescent display using bimorph MEMS devices  
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....
7710366 Display device and driving method thereof  
Each pixel includes: a light emitting element; a capacitor; a driving transistor that has a control terminal, an input terminal, and an output terminal and supplies a driving current to the light...
7663598 Backlight assembly driving apparatus for liquid crystal display  
A backlight assembly driving apparatus for a liquid crystal display device includes a light emitting diode string of serially connected light emitting diodes, and switching devices connected in...
7658866 Fluorescent material and light-emitting device  
A fluorescent material includes first and second phosphors. The first phosphor is a light-storing phosphor, which is represented by the general formula (M1-a-bEuaQb)Al2O4, wherein M is one type...
7657097 Picture reproduction system and method utilizing independent picture elements  
A system and method of producing an image using a plurality of independent pixel devices, each of which includes one or more light emitting or polarizing elements. The pixel devices are fixed (e.g....
7656366 Method and apparatus for reducing thermal stress in light-emitting elements  
The present invention provides a method and apparatus for controlling the thermal gradient and therefore the thermal stress in light-emitting elements in which the light-emitting elements are...
7633463 Method and IC driver for series connected R, G, B LEDs  
A LED driver is connectible to several series connected RGB LEDs which connect in series with a current generator. A plurality of LED switches are respectively connectible across one RGB LED. Each...
7623560 Quantum photonic imagers and methods of fabrication thereof  
Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can...
7615938 Method and system for variable LED output in an electronic device  
A waveform generator generates LED signal values that define an LED waveform and period. Each signal value is scaled by a particular scaling value to scale the amplitude of the LED waveform. The...
7579786 Method, apparatus, and system for driving LED's  
A method and apparatus for driving LED's is disclosed, comprising the steps of receiving a desired intensity value, wherein the desired intensity value represents the desired intensity for the...
7567223 Light-emitting diode (LED) hysteretic current controller  
An LED current control device (100) includes a set of one or more LEDs (10) connected to a current-sensing element (20) and an external voltage source (VEXT). A sense signal produced by the...
7564452 Organic electroluminescent display  
An organic electroluminescent display supplies a reverse bias voltage to an Organic Light-Emitting Diode (OLED) for emitting light. The organic electroluminescent display additionally includes a...
7560880 Control device for work lamp  
A control device for work lamp includes a microprocessor, which is able to receive signals sent from a power supply unit and a switch. The microprocessor is able to determine the number of times...
7561130 Solar powered street-lamp control circuit  
A control circuit for regulating current supplied from a power source to at least one load. The control circuit has a current mirror circuit electrically coupled between the power source and the at...
7561128 Organic electroluminescence display device  
A pixel unit for an organic electroluminescence display device includes four switching transistors, a driving transistor, a capacitor and an organic light emitting diode, configured in a circuit to...
7554604 Method and apparatus for simulating the scenes of image signals  
The present invention relates to a method for simulating the scenes of image signals, which comparing different image signals in alternation time to decide the emitting type and the emitting...
Matches 1 - 50 out of 261 1 2 3 4 5 6 >