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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...
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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 (V EXT ). A sense signal produced by the...
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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...
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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...
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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...
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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...
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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...
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7496297 |
LED system for illumination and data transmission
A LED system ( 100 ) for illumination and data transmission employs a LED driver ( 110 ), an electronic switch ( 130 ), and an illumination unit ( 150 ). In a first illumination state, illumination...
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7495576 |
Modular electronic sign and method of assigning a unique identifier to common modules of said sign
A plurality of common, modular panels attach to a support frame carrying power and data connections for an electronic display sign. LEDs are used as the light mechanisms for illumination of said...
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7483003 |
Drive circuit and display system with said drive circuit
The objective of this invention is to provide a drive circuit and display system that can efficiently transfer prescribed information indicating an abnormality in the drive current supplied to the...
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7482998 |
System and method for driving multiple display types using a single header block
An LED interface circuit provides connection options for one or more types of LEDs. In an embodiment, the circuit includes an input node that receives an LED control signal, and an output that has...
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7474314 |
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...
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7474287 |
Light emitting device
A light emitting device includes a time delay mechanism in electrical connection with a power source for time shifting at least a portion of a power signal outputted by the power source and a...
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7466081 |
Emergency lighting
An emergency lighting with an electrical illuminant (DL 1 , DL 2 , DL 3 ), which, as a power supply drops below a predeterminable value, can be connected to an energy source that can be charged...
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7463224 |
Light emitting device and display device
Each pixel in a display device includes an emissive element, a driver transistor, a control transistor, and a control capacitor. The driver transistor is provided between the emissive element and a...
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7458691 |
Holographic combiners for illumination of spatial light modulators in projection systems
Described is an optical device for combining multiple light sources in an optical projection system. One embodiment of the optical device includes at least two light sources having first and second...
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7453419 |
Edge lighting system for interactive display surface
An edge lighting system has a plurality of light sources, such as light emitting diodes (LEDs) mounted at spaced-apart intervals along a rail that is disposed adjacent to an edge of a display...
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7441415 |
Bracelet
A bracelet includes at least one electronic display unit. Each display unit has a display having a plurality of display elements arranged in a sequence lying along the length of the bracelet and/or...
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7417608 |
Organic light emitting diode display and operating method of driving the same
An organic LED (OLED) display device and an operating method of driving the same. In an OLED image display device, one switch transistor is provided in one pixel. For at least a part of an OFF...
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7408308 |
LED drive circuit, LED lighting device, and backlight
To realize an LED drive circuit capable of feeding equal currents to parallel-connected LED circuits with a simple arrangement, there are provided a current source generating a temporally altering...
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7372441 |
Burst pulse circuit for signal lights and method
A circuit is provided for over-driving a super-luminescent light emitting diode having a maximum forward continuous current rating. A power supply provides a pulse width modulated signal to an...
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7372430 |
Light emitting device and light receiving and emitting driving circuit
A light emitting device including a plurality of pieces of LEDs D 01, D 02 to D 16 , one or more driving circuit(s) for supplying the plurality of LEDs D 01 , D 02 to D 16 with electrical...
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7350942 |
LED matrix display module with high luminance area ratio
The invention relates to a display apparatus, particularly to structure of LED display modules. The invention could be implemented through a LED matrix display module with high luminance area ratio...
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7319440 |
Organic light emitting diode light source
A novel OLED light source and method for controlling said OLED light source panel are disclosed wherein said light source is constructed such that active areas are segmented and said segments are...
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7310074 |
System for controlling LED devices
A DMX512 signal source distributor and a loader for a plurality of LED controllers can control LED devices such as an LED board. The DMX512 signal source distributor includes a UART, an MCU...
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7292210 |
Circuit for driving flat panel display
The present invention provides a circuit for driving a flat panel display, including a storage capacitor, a transmission gate and a current-limiting transistor. A first terminal of the storage...
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7273286 |
Display device and light control method of the same
Aspects of the invention can provide a display device capable of providing stable light control with simplified control and structure. A display device can include light sources in which light...
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7262758 |
Display device using vertical cavity laser arrays
A display apparatus for producing colored pixelated light includes a backlight unit for providing a pump-beam light. The apparatus also includes a microcavity light-producing array responsive to...
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7233325 |
Structure and method for reducing source line resistance of light emitting diode
A structure and a method for reducing source line resistance of a light emitting diode. A light emitting diode display has at least a light emitting diode, a power source and a power source line...
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7212193 |
Method and circuit for driving display, and portable electronic device
A method for driving a display is provided which is capable of reducing current consumption. In the method above, a scanning frequency in a self-emissive display is changed based on a display...
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7161567 |
Light emitting device and apparatus using the same
A mold part formed of a light transmitting material having a high refractive index is molded in a concave-shaped reflecting member, and a light emitting element such as an LED chip or the like is...
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7142173 |
Kinetic device and method for producing visual displays
A visual display device is constructed which uses the “persistence of vision” effect of human vision and responds to kinetic motions of the user as the device is held and swung by an operator....
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7131735 |
Light source device, optical device, and liquid-crystal display device
A light source device, comprising a light guide block that is provided with an inner wall capable of reflecting light and is shaped as a hollow component to form a light guide, and a point light...
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7126559 |
USB flash-memory drive with dazzling marquee-pattern driver for multi-LED display
A multi-light-emitting diode (LED) display for a USB flash drive produces a visually dazzling display. When accessed, a USB flash controller drives pulses onto an activity signal that increments a...
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7123211 |
Surround-vision display system
A surround-vision display system with a very high visual dynamic range is made possible by distributing a limited number of LED's on the inside of a drum and then spinning that drum around a user....
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7115888 |
LED driving semiconductor circuit and LED driving apparatus including the same
A LED driving semiconductor circuit of the present invention includes a first input terminal connected to a light-emitting diode, a switching device block having a first FET and a first switching...
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7091941 |
Color OLED display with improved power efficiency
A color OLED display includes an array of light emitting pixels, each pixel having three light emitting elements for emitting red, green, and blue colors of light specifying a gamut and at least...
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7091667 |
Thin film transistor array, display panel, method for inspecting the thin film transistor array, and method for manufacturing active matrix organic light emitting diode panel
A thin film transistor (TFT) array comprises: a drive TFT for driving an organic light emitting diode (OLED), which is an electroluminescence (EL) device; first common wiring disposed for...
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7071959 |
Method and apparatus for arranging light-emitting diodes and light-emitting elements
After measurement, light-emitting elements are temporarily numbered ( 1 ), . . . in measuring order and arranged successively on a temporary palette. In parallel with this operation, measured light...
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7046217 |
Energy recovery apparatus for plasma display panel
An energy recovery apparatus for a plasma display panel is provided that may include a capacitor equivalently formed at a discharge cell, an inductor, an energy recovery capacitor, switching units...
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7030893 |
Method for driving full-color LED display board
The present invention discloses a method for driving a full-color LED display board with high resolution. It features three original color LED pixels that are arranged in a diamond pattern to form...
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7009580 |
Solid state lighting array driving circuit
A solid-state lighting array driving circuit in which a plurality of solid-state lighting devices such as LEDs are rearranged in a reconfigurable circuit. The circuit may be changed to incorporate...
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6989806 |
Current limiting device
An embodiment of the present invention pertains to an electronic device such as a passive matrix display, an alpha-numeric display, a detector array, or a solar cell array. The electronic device...
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6982527 |
Method for driving light emitting diode
A method for driving a light emitting diode coupled to an output of a current mirror is provided. The method includes providing a control terminal voltage of the current mirror as a reference...
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6980181 |
LED drive circuit
An LED drive circuit having reduced power consumption has a constant current generating circuit for driving a plurality of LEDs and at least one switch connected to a respective LED for...
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6975291 |
Method for generating uniform luminosity for area color organic light emitting diode
A novel driving method targeting area color organic light emitting diode display devices aims at resolving the problems of poor color balance and uneven luminosity on the display panel resulting...
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6950079 |
Light emitting diode driving circuit
A luminance control circuit has luminance change characteristics similar to those of a conventional lamp when a light emitting diode is used as a light source. The luminance control circuit adjusts...
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6937214 |
Method for generating uniform luminosity for displaying contents of organic light emitting diode
A method for generating an uniform luminosity for displaying contents on an organic light emitting diode display device that include a plurality of pictures and a plurality of pixels has a driver...
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6932477 |
Apparatus for providing multi-spectral light for an image projection system
A solid state multi-spectral light source for a multi-spectral light source system includes an array of LED groups, wherein each LED group may include red, green, and blue LEDs. The LEDs produce...
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6910779 |
Vehicle mirror
A vehicle mirror has a mirror glass ( 1 ) which also forms a substrate for an OLED display ( 7 ). This OLED display ( 7 ) fully covers the mirror glass ( 1 ). A front cover glass ( 5 ) forms the...
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