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41results about How to "Maximize light efficiency" patented technology
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Light excitation-diffusion sheet for backlight unit and backlight unit for liquid crystal display using the same
InactiveUS20060109682A1High color purityImprove lighting efficiencyOptical light guidesNon-linear opticsLiquid-crystal displayMaterial scattering
A light excitation diffusion sheet for a backlight unit adapted to absorb a portion of light emitted from a light source of a blue wavelength or a mixed wavelength of a blue wavelength and at least one other wavelength, to emit light at different wavelengths from the light emitted from the light source, and to allow the rest of the light emitted from the light source to penetrate the sheet The light excitation-diffusion sheet comprises a light-exciting material exciting and amplifying the light from the light source and a light-diffusing material scattering and diffusing the light from the light source. The light-exciting material and the light-diffusing material are uniformly distributed in the light excitation-diffusion sheet The use of the light excitation-diffusion sheet enables production of edge light type and direct light type backlight units having diffusion and prism functions, good color purity and improved light efficiency at reduced costs.
Owner:KDT
Lighting device
ActiveUS20130335975A1Stable brightnessImprove heat resistancePlanar light sourcesVehicle headlampsLight reflectionEffect light
Provided is a lighting device, comprising: a light source module comprising: at least one light source disposed on a printed circuit board; and a resin layer disposed on the printed circuit board so that the light source is embedded; a light reflection member formed on at least any one of one side surface and another side surface of the resin layer; and a diffusion plate having an upper surface formed on the light source module, and a side wall which is integrally formed with the upper surface and formed to extend in a lower side direction and which is adhered onto the light reflection member, wherein a first separated space is formed between the light source module and the upper surface of the diffusion plate, whereby flexibility of the product itself can be secured, and durability and reliability of the product can be also improved.
Owner:LG INNOTEK CO LTD
Photovoltaic devices
InactiveUS20090314337A1Excellent characteristicsExcellent gapFinal product manufactureSemiconductor/solid-state device manufacturingSemiconductorOxide semiconductor
Photovoltaic devices and methods of manufacturing the same are provided. In one example, a photovoltaic device includes: a substrate; a transparent conductive layer deposited on the substrate; a semiconductor layer provided with a P layer, an I layer, and a N layer sequentially deposited on the transparent conductive layer; and a rear electrode deposited on the N layer of the semiconductor layer, wherein the P layer is a P-type oxide semiconductor.
Owner:SAMSUNG SDI CO LTD +1
High efficiency mono-order concave diffraction grating
ActiveUS9176282B2Maximize light efficiencyRadiation pyrometrySpectrum generation using diffraction elementsOptoelectronicsIntegrated optics
A concave diffraction grating for integrated optics is constructed by replacing the reflective metallic part by either multiple thin elements of metal or multiple elements of dielectric material, each partially reflecting the light, and arranged on elliptical fashion in order to distribute the diffraction / reflection of light and provide aberration-free focusing, by combining diffraction condition and Bragg condition of these curved reflectors.
Owner:VALORBEC S E C
Backlight unit including cob type light emitting diode module
ActiveUS20130051069A1Reduce thicknessImprove incident efficiencyMechanical apparatusSemiconductor/solid-state device manufacturingEngineeringOn board
A backlight unit (BLU) is disclosed. The BLU may include a light emitting diode (LED) module including at least one LED chip mounted on a substrate in a chip-on-board (COB) type, and a light guide panel including an incidence surface configured to receive light emitted from an emission surface of the LED chip and to include at least one insertion recess disposed corresponding to the LED chip, such that the LED chip is bonded to the LED module to be inserted in the insertion recess.
Owner:SAMSUNG ELECTRONICS CO LTD
High efficiency mono-order concave diffraction grating
ActiveUS20140233891A1Maximize light efficiency couplingMaximize light efficiencySpectrum generation using diffraction elementsDiffraction gratingsOptoelectronicsIntegrated optics
A concave diffraction grating for integrated optics is constructed by replacing the reflective metallic part by either multiple thin elements of metal or multiple elements of dielectric material, each partially reflecting the light, and arranged on elliptical fashion in order to distribute the diffraction / reflection of light and provide aberration-free focusing, by combining diffraction condition and Bragg condition of these curved reflectors.
Owner:VALORBEC S E C
Lighting device
ActiveUS20140029263A1Reduce in quantityThin thicknessVehicle headlampsLight guides detailsEffect lightLight reflection
Provided is a lighting device, including: a light source module comprising at least one light source on a printed circuit board, and a resin layer in which the light source is embedded; a light reflection member which is adjacent to at least any one of one side surface and the other side surface of the resin layer; and an optical plate comprising a side wall which is closely adhered to the light reflection member, and an upper surface which covers an upper part of the light source module, wherein a haze of the optical plate is less than 30%.
Owner:LG INNOTEK CO LTD
Light emitting device
InactiveUS20100164349A1Reduce lightMaximize light efficiencyIncadescent screens/filtersElectric discharge tubesLight reflectionLight emitting device
A light emitting device comprises: a concave mirror having one focal point; a plurality of main light sources each of which is arranged between the focal point and a light reflection surface of the concave mirror, and emits light toward the light reflection surface; and a plurality of main lenses each of which is arranged between a corresponding one of the main light sources and the light reflection surface, refracts the light emitted from the corresponding main light source toward the light reflection surface, and produces a virtual image of the main light source on the focal point situated at a backside of the main light source.
Owner:PHOENIX ELECTRIC CO
Flat panel display embedding optical imaging sensor
ActiveUS20180322325A1Resolution and high and superiorSensitivity high and superiorMechanical apparatusDigital data processing detailsLight beamDisplay device
The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure suggests a flat panel display embedding an image sensor comprising: a display panel including a display area and a non-display area; and a directional optical unit having a length and a width corresponding to the display panel and a thickness, and attached on a top surface of the display panel, wherein the directional optical unit provides a sensing light beam to the display area, and wherein the sensing light is collimated and directionized to a predetermined direction.
Owner:LG DISPLAY CO LTD
Nitride semiconductor light emitting diode
InactiveUS20080042161A1Good lattice matchingMaximize light efficiencySemiconductor devicesElectron blocking layerActive layer
A nitride semiconductor light emitting diode includes: an n-type clad layer; an active layer formed on the n-type clad layer; an electron blocking layer formed on the active layer, the electron blocking layer being composed of a p-type nitride semiconductor including a transition element of group III; and a p-type clad layer formed on the electron blocking layer.
Owner:SAMSUNG LED CO LTD
Lamp assembly for liquid crystal display device
InactiveUS6922016B2Improve lighting efficiencyMinimizes brightness differenceLighting support devicesPoint-like light sourceLiquid-crystal displayEngineering
A lamp assembly for a liquid crystal display device includes a lamp tube for generating light, and electrodes each having a suitable shape for receiving end portions of the lamp tube. The lamp tube and the electrodes are combined to generate the light by applying electric power to the electrodes. The lamp assembly may include multiple lamp tubes having different brightness from each other, in which the brightness difference between the lamp tubes is compensated by uniformly diffusing the light generated from the lamp tubes.
Owner:SAMSUNG DISPLAY CO LTD
Electronic power supply device for light-emitting diode
InactiveUS20090195170A1Reduce efficiency conversion of conversionExtended service lifeElectrical apparatusElectroluminescent light sourcesEffect lightEngineering
An electronic power supply device is provided for light-emitting diodes (LEDs), which employs electronic control to maintain the LEDs within the rated ranges of current, voltage and temperature and provides the LEDs with extremely stable current, voltage and temperature. Meanwhile, the power supply device is effective in confining the LEDs within the rated ranges of voltage, current, and temperature so that the excellent electronics protection and design of logic device realized by the power supply device effectively overcomes aging / deterioration of LEDs caused by exceeding voltage and current and burning out due to exceeding temperature and also effectively pushes the rated current and voltage of a (low-power) LED module toward the maximum values to provide the greatest luminous efficiency for upgrading the applications of the LEDs to the primary grade of lighting.
Owner:PAI HAO CHIN +3
Tooth whitening apparatus
InactiveUS20100086891A1Maximize light efficiencySufficient whitening effectDental toolsLight therapyEngineeringTooth whitening
Provided is a tooth whitening apparatus. The tooth whitening apparatus includes a whitening unit having a light emitting part emitting light to all of teeth of a patient; and a wearable set to which the whitening unit is mounted, the wearable set being worn on head of the patient.
Owner:JUN JONG CHAN
Method and system for illuminating an indicator
InactiveUS20070253185A1Improve rangeGood lookingMeasurement apparatus componentsIlluminated signsEngineeringBright spot
A method and system are provided to illuminate an indicator, including indicators for electronic systems, appliances, and motor vehicle settings such as a visible temperature setting. Lighting efficiency is maximized, while light leaks, bright spots, shadows, internal reflections, color bleeds, and other undesirable visual effects are avoided. A lightbox having a cavity contains emitted light and transmits the light to an indicator. The indicator displays a system setting and an encoder varies the system setting. In an aspect, a light block and ramp are formed in the lightbox to uniformly dispense light to the indicator. A light dividing ridge formed in the lightbox separates the light dispensed to separate sections of the indicator. Further improvements include a tight fit formed between the indicator and a control knob, and a maximized indicator base area adjacent to the lightbox. The lightbox can also be integrated as part of a switchpad, reducing costs.
Owner:DELPHI TECH INC
Quantum rod light-emitting display device
ActiveUS8902384B2Reduce power consumptionHigh light transmittanceLight demodulationNon-linear opticsQuantum rodsDisplay device
A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer disposed between the first substrate and the second substrate, wherein quantum rods in the quantum rod layer are arranged in one direction; a backlight unit provided under the display panel and configured to provide light to the display panel; and a short-wavelength pass filter film formed between the display panel and the backlight unit, and configured to transmit the light having a predetermined wavelength range.
Owner:LG DISPLAY CO LTD
Dynamic power supply for light emitting diode
ActiveUS20170019965A1Maximize light efficiencyMaximize efficiencyElectrical apparatusElectroluminescent light sourcesFlicker-freeControl system
A voltage control system for an LED operates to dynamically determine and set a minimum permissible voltage on an energy storage device such as a capacitor such that the energy storage device operates at a minimum possible voltage to compensate for component variations and dimming signal variations while maintaining flicker-free operation of the LED.
Owner:KORRUS INC
High-density optical disk with a polymer film featuring thermochromism
InactiveUS20030108709A1Small sizeHigh strengthRadiation applicationsLayered productsThermochromismData recording
The present invention relates to a high-density optical disk having thin film layer made from a thermochromic polymer with a red-shift which exhibits self-focusing and optical bleaching. After an incident light beam passes through the polymer medium, not only can the spot size of the beam be reduced but also transmittance can be enhanced due to these kinds of third-order nonlinear optical response. Thus, a high-density disk structured according to the present invention is capable of the signal reproduction resolution beyond the diffraction limit with an efficient reflectivity. Accordingly, data recording density of a high-density disk can be improved greatly.
Owner:LG ELECTRONICS INC +1
Light emitting device
InactiveUS8067881B2Reduce lightMaximize light efficiencyIncadescent screens/filtersPoint-like light sourceLight reflectionLight emitting device
A light emitting device comprises: a concave mirror having one focal point; a plurality of main light sources each of which is arranged between the focal point and a light reflection surface of the concave mirror, and emits light toward the light reflection surface; and a plurality of main lenses each of which is arranged between a corresponding one of the main light sources and the light reflection surface, refracts the light emitted from the corresponding main light source toward the light reflection surface, and produces a virtual image of the main light source on the focal point situated at a backside of the main light source.
Owner:PHOENIX ELECTRIC CO
Plasma lighting system and bulb therefor
InactiveUS7161303B2Maximize light efficiencyLight characteristic of lightPoint-like light sourceElectric lighting sourcesEffect lightEngineering
An improved plasma lighting system is provided which includes a bulb filled with both metal halide and mercury as primary light-emitting materials. By maintaining an operating pressure of the metal halide at between approximately 0.1 and 10 atm, and an operating pressure of the mercury at between approximately 30 and 150 atm, a point source of light characteristic and a spectrum characteristic of the emitted light is improved. Therefore, the plasma lighting system can be applied to an optical system that requires a point source of light, and can maximize lighting efficiency to provide improved overall emission characteristics.
Owner:LG ELECTRONICS INC
Blind spot detection module
ActiveUS20150329047A1Maximize light efficiencyHigh light efficiencyOptical signallingRoad vehiclesLight guideComputer module
Provided is a blind spot detection module, including: a light source module linked with a sensor signal for detection of an object in an area behind a vehicle to emit light; and a reflector module including a warning optical pattern for transmitting light emitted from the light source module, wherein the light source module comprises a light guide member adopted to receive a light emitting element and to guide light to the reflector module.
Owner:LG INNOTEK CO LTD
Three-dimensional augmented reality head-up display for positioning virtual image on ground by means of windshield reflection method
ActiveUS20210208392A1Maximize light efficiencyVehicle componentsOptical elementsLight reflectionDisplay device
A three-dimensional augmented reality head-up display includes a display device functioning as a light source; and a freeform surface mirror for reflecting light from the light source onto a windshield of a vehicle. An image created by the light from the light source is focused on the ground in front of the vehicle as a virtual image of a three-dimensional perspective, through a reflection method in which the light from the light source is reflected onto the windshield by means of the freeform surface mirror.
Owner:NAVER LABS CORP
Backlight unit including COB type light emitting diode module
ActiveUS8960984B2Reduce thicknessImprove incident efficiencyMechanical apparatusSemiconductor/solid-state device manufacturingLight guideOn board
A backlight unit (BLU) is disclosed. The BLU may include a light emitting diode (LED) module including at least one LED chip mounted on a substrate in a chip-on-board (COB) type, and a light guide panel including an incidence surface configured to receive light emitted from an emission surface of the LED chip and to include at least one insertion recess disposed corresponding to the LED chip, such that the LED chip is bonded to the LED module to be inserted in the insertion recess.
Owner:SAMSUNG ELECTRONICS CO LTD
Plasma lamp system and bulb therefor
InactiveUS20050052140A1Maximize light efficiencyBroaden applicationPoint-like light sourceElectric lighting sourcesEffect lightEngineering
In a plasma lamp system, a bulb is filled with both metal halide and mercury as primary light-emitting materials, operating pressure of the metal halide is 0.1˜10 atm, and operating pressure of the mercury is 30˜150 atm, thereby improving a point source of light characteristic and a spectrum characteristic of light. Therefore, the plasma lamp system can be optimally applied to an optical system that requires a point source of light, and can maximize its lighting efficiency.
Owner:LG ELECTRONICS INC
High-density optical disk with a polymer film featuring thermochromism
InactiveUS6808779B2Small sizeHigh strengthPhotosensitive materialsRadiation applicationsThermochromismPolymer thin films
The present invention relates to a high-density optical disk having thin film layer made from a thermochromic polymer with a red-shift which exhibits self-focusing and optical bleaching. After an incident light beam passes through the polymer medium, not only can the spot size of the beam be reduced but also transmittance can be enhanced due to these kinds of third-order nonlinear optical response. Thus, a high-density disk structured according to the present invention is capable of the signal reproduction resolution beyond the diffraction limit with an efficient reflectivity. Accordingly, data recording density of a high-density disk can be improved greatly.
Owner:LG ELECTRONICS INC +1
Blind spot detection module
ActiveUS10252674B2Maximize light efficiencyHigh light efficiencyMechanical apparatusOptical signallingLight guideBlind spot detection
Provided is a blind spot detection module, including: a light source module linked with a sensor signal for detection of an object in an area behind a vehicle to emit light; and a reflector module including a warning optical pattern for transmitting light emitted from the light source module, wherein the light source module comprises a light guide member adopted to receive a light emitting element and to guide light to the reflector module.
Owner:LG INNOTEK CO LTD
High-density optical disk with a polymer film featuring thermochromism
InactiveUS20030108758A1Small sizeHigh strengthPhotosensitive materialsRadiation applicationsRecording densityTransmittance
The present invention relates to a high-density optical disk having thin film layer made from a thermochromic polymer with a red-shift which exhibits self-focusing and optical bleaching. After an incident light beam passes through the polymer medium, not only can the spot size of the beam be reduced but also transmittance can be enhanced due to these kinds of third-order nonlinear optical response. Thus, a high-density disk structured according to the present invention is capable of the signal reproduction resolution beyond the diffraction limit with an efficient reflectivity. Accordingly, data recording density of a high-density disk can be improved greatly.
Owner:LG ELECTRONICS INC +1
LED road lamp
InactiveCN101187451ASolve the cooling problemExtended service lifePoint-like light sourceSemiconductor/solid-state device detailsLight fluxMirror reflection
The invention relates to a non portable lighting device or a system of the lighting device, particularly belonging to an LED lamp light. The invention relates to an LED road lamp, comprising a power supply, a lamp stand, and a lamp holder. The invention is characterized in that the lamp holder is provided with a cooling plate, and an LED is directly connected with the cooling plate. The advantages of the invention lie in that the LED with a professional design has smaller light decay under the working environmental temperature within 30 DEG C, so the service life of the LED can reach over 30-50 thousand hours, lights which are generated by the LED are processed by a second optics through utilizing a mirror reflection, and the higher light flux enables the LED lamp to be brighter 50% than an LED lamp with same power which is assembled in small power, and the height of the lamp stand can reach to 6-12m, the service life is long by adopting group series, the cost is cheaper 50% than a current LED road lamp, the change of the light source of the original road lamp is convenient, the maintenance is convenient, and the maintenance cost is low.
Owner:福建日同辉太阳能应用技术有限公司
Flat panel display having optical sensor
ActiveUS10726232B2Resolution and high and superiorSensitivity high and superiorDigital data processing detailsPrint image acquisitionDisplay deviceEngineering
The present disclosure relates to a flat panel display having an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides a flat panel display having an image sensor comprising: a display panel including a display area and a non-display area, the display panel having a top surface; a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel; a sensing light control film disposed under the display panel; and an image sensor disposed under the sensing light control film.
Owner:LG DISPLAY CO LTD
Vehicle lamp with a shield having a double directional illumination structure
ActiveUS6957902B2Maximize light efficiencyVehicle headlampsOptical signallingLight reflexOptoelectronics
Owner:SL CORP
Flat Panel Display Having Optical Imaging Sensor
ActiveUS20180322324A1Resolution and high and superiorSensitivity high and superiorDigital data processing detailsPrint image acquisitionDisplay deviceFlat panel display
The present disclosure relates to a flat panel display having an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides a flat panel display having an image sensor comprising: a display panel including a display area and a non-display area, the display panel having a top surface; a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel; a sensing light control film disposed under the display panel; and an image sensor disposed under the sensing light control film.
Owner:LG DISPLAY CO LTD
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