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201results about How to "Color shift" patented technology
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Photoluminescent fibers, compositions and fabrics made therefrom
Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.
Owner:PERFORMANCE INDICATOR LLC
Planar light source device and liquid crystal display device using the same
InactiveUS6976779B2Less color-shiftColor shiftMechanical apparatusPoint-like light sourceLiquid-crystal displayTransmittance
Owner:MITSUBISHI ELECTRIC CORP
Phosphor mixture and light emitting device
ActiveUS20060197432A1Good color propertiesSmall color shiftDischarge tube luminescnet screensLamp detailsColor shiftPhosphor
To provide a phosphor mixture realizing a light emitting device having a phosphor and a light emission element, by which light emission is performed, with a small color shift due to a feeding current and having an excellent color rendering properties. CaAlSin3:Eu as a red phosphor and YAG:Ce as a yellow phosphor are manufactured, and emission spectra thereof are obtained. Meanwhile, the emission spectrum of an excitation light emitted by a light emitting part is obtained. From the emission spectra thus obtained, a relative mixing ratio of each phosphor is obtained by simulation, so that a correlated color temperature of the light emitting device becomes a target temperature. Then, based on the relative mixing ratio thus obtained, each phosphor is measured and mixed, and a phosphor mixture is thereby obtained.
Owner:NICHIA CORP +1
Imaging device and imaging method
ActiveUS20100208099A1Color shiftAccurate white balanceColor signal processing circuitsCharacter and pattern recognitionImage sensorImage capture
An imaging device is configured to include an optical system which captures an image of a subject, an image sensor which converts the image captured by the optical system into an electric signal, a classifying unit which classifies the captured image into a plurality of areas according to brightness information and color information, a white balance correcting unit which set different white balance correction coefficients for the plurality of areas; and a white balance correction coefficient adjusting unit which adjusts a difference in the white balance correction coefficients for the plurality of areas to be within a first predetermined range.
Owner:RICOH KK
Semiconductor light-emitting device and method for manufacturing semiconductor light-emitting device
InactiveUS20080218072A1Improve light extraction efficiencyInhibit coloringDischarge tube luminescnet screensLamp detailsPhosphorEngineering
A semiconductor light-emitting device in which a light-emitting diode including a light-emitting layer is placed directly on the bottom of a cup-shaped case or placed above the case bottom with a submount disposed therebetween includes a transparent primary sealing member that seals a side region, located under the light-emitting layer, surrounding the light-emitting diode that is fixed in the case; a transparent secondary sealing member disposed on the primary sealing member; and a uniform deposition layer formed by depositing phosphor particles or light diffuser particles contained in a material for forming the secondary sealing member. The phosphor particles or the light diffuser particles are deposited on the upper surface of the light-emitting diode and the upper surface of the primary sealing member to form a uniform layer that is as thin as a one-particle to five-particle layer.
Owner:TOYODA GOSEI CO LTD
White organic light emitting device and method for manufacturing the same
ActiveUS20100133522A1Improve luminous efficiencyColor shiftElectroluminescent light sourcesSolid-state devicesHole transport layerLight emitting device
The present invention relates to a white organic light emitting device and a method for manufacturing the same, in which a hole transport layer is made to have an energy level higher than an energy level of an excited state of a phosphorescent light emitting layer adjacent thereto for enhancing light emitting efficiency of the hole transport layer without an additional exciton blocking layer, and a dopant content in the phosphorescent light emitting layer is adjusted for preventing color shift from taking place.The white organic light emitting device includes an anode and a cathode placed on a substrate opposite to each other, a charge generation layer formed between the anode and the cathode, a first stack of a first hole transport layer, a first light emitting layer for emitting a blue light, and a first electron transport layer between the anode and the charge generation layer, and a second stack of a second hole transport layer, a second light emitting layer having a host doped with phosphorescence red and green together, and a second electron transport layer between the charge generation layer and the cathode, wherein the second hole transport layer has an energy level set higher than a triplet excited state energy level of the second light emitting layer.
Owner:LG DISPLAY CO LTD
Color shift correcting method, optical writing device and image forming apparatus
InactiveUS20040100550A1True colorLow costElectrographic process apparatusPrintingColor imageColor shift
A color shift correcting method for correcting a color shift due to misregistration of images in different colors, where a multi-color image is formed by developing latent one-color images written onto respective image carriers by an optical writing device, and directly or indirectly transferring developed one-color images onto a movable element, said method comprising the step of: adjusting a position at which one of said image carriers is irradiated with an optical beam in a sub-scanning direction to correct said color shift while said optical beam is irradiated from said optical writing device onto said image carriers to develop the latent one-color images.
Owner:RICOH KK
Phosphor, production method of phosphor, phosphor-containing composition, and light emitting device
InactiveUS20110182072A1High luminance characteristicImproved temperature characteristicDischarge tube luminescnet screensLamp detailsHalogenLight source
To provide an alkaline-earth metal halogen phosphor that has high luminescent characteristics even when used with an excitation light source that emits light of the near-ultraviolet region, a phosphor-containing composition and a light emitting device using the phosphor, and a display and an illuminating device using the light emitting device,the phosphor of the present invention has a chemical composition represented by the formula (1) below and an external quantum efficiency, when excited with light of 400-nm wavelength, of 77% or higher.(Sr10-x-y-zMxEuyMnz)(PO4)6(Cl1-aQa)2 (1)(In the above formula (1), “M” represents at least one kind of element selected from the group consisting of Ba, Ca, Mg, and Zn, “Q” represents at least one kind of element selected from the group consisting of F, Br, and I, and each of “x”, “y”, “z”, and “a” represents a number satisfying the following requirements: 0≦x<10, 0.3≦y≦1.5, 0≦z≦3, 0≦a≦1, and x+y+z≦10.)
Owner:MITSUBISHI CHEM CORP
White Light Emitting Organic Electroluminescent Device
InactiveUS20090001882A1High-quality colorExtend your lifeDischarge tube luminescnet screensElectroluminescent light sourcesOrganic layerOrganic electroluminescence
Provided is a white light emitting organic electroluminescent device, which includes a transparent substrate, a first element, and a second element. The first element includes a first anode, a first element organic layer, and a reflective cathode sequentially disposed on a first substrate of the transparent substrate. The second element includes a second anode, a second element organic layer, and a transparent or translucent cathode sequentially disposed on a second surface of the transparent substrate. The white light emitting organic electroluminescent device of the present invention can eliminate the color coordinates shift phenomenon of white light that occurs in a conventional three primary color white light organic electroluminescent device. Since the aging effect caused by heat generated from light emission is reduced by dividing electroluminescent layers, the electroluminescent device can have a long lifespan.
Owner:DOOSAN CORP
LED lighting device
InactiveUS20100207134A1Reduce amountHigh color reproductionElectroluminescent light sourcesSolid-state devicesViolet lightWhite light
An LED lighting device comprises a plurality of light emitting units which is configured to emit visible light having different colors which are mixed with each other to produce a white light. Each the light emitting units is composed of an LED chip and a phosphor. The LED chip is configured to generate light. The phosphor has a property of giving off a light of a predetermined color when the phosphor is excited by the light from the LED chip. The LED chip is selected from a group consisting of a blue LED chip, a UV LED chip, ad a violet LED chip. Each the phosphor is selected to give off the light of a predetermined color different from one another.
Owner:PANASONIC CORP
Optical resin film and polarizing film and liquid crystal display device using the same
ActiveUS20070046864A1Increase contrastColor shiftNon-linear opticsOptical elementsIn planeLiquid-crystal display
An optical resin film, which has Re (λ) and Rth (λ) satisfying retardation requirements (A) to (D), and has an in-plane width direction retardation (Re) variation coefficient of 5% or less and a thickness direction retardation (Rth) variation coefficient of 10% or less: (A) 0.1<Re (450) / Re (550)<0.95 (B) 1.03<Re (650) / Re (550)<1.93 (C) 0.4<(Re / Rth (450)) / (Re / Rth (550)))<0.95 (D) 1.05<(Re / Rth (650) / (Re / Rth (550))<1.9, and a polarizing plate and a liquid crystal display device using the optical resin film.
Owner:FUJIFILM CORP
Image display apparatus
ActiveUS20110234949A1Reduce image qualityImage quality be impairedNon-linear opticsOptical elementsColor filter arrayImage display
An image display apparatus including an image display panel includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.
Owner:JAPAN DISPLAY WEST
Optical compensation film and liquid crystal display
ActiveUS20050195348A1Increase contrastReduced in viewing-angle-dependent coloringPolarising elementsNon-linear opticsChemistryLiquid-crystal display
A novel optical compensation film is disclosed. The optical compensation film has Re / Rth(450 nm), a ratio of Re to Rth measured at 450 nm, 0.4 to 0.95 times as large as Re / Rth(550 nm) at 550 nm, and having Re / Rth(650 nm) at 650 nm 1.05 to 1.9 times as large as Re / Rth(550 nm) at 550 nm. In the formulae, Re is in-plane retardation defined as Re={(nx−ny)×d1}; Rth is depth retardation defined as Rth=[{(nx+ny) / 2−nz}×d1]; d1(nm) is a thickness of the film, nx, ny and nz are respectively mean refractive indices in the directions of x-axis, y-axis and z-axis orthogonal to each other; nx and ny are in-plane main mean refractive indices in parallel with the surface of said optical compensation film (where, ny<nx); and nz is a depth main mean refractive index.
Owner:FUJIFILM CORP
Luminance controller and organic light emitting display device having the same
ActiveUS20170186375A1Light emission delay can be reducedLight emission delay can be improvedStatic indicating devicesDisplay deviceComputer science
A luminance controller according to example embodiments includes a gamma set selector to select a reference gamma set from among first through N-th gamma sets respectively corresponding to first through N-th reference luminances, based on a target luminance of a display panel; an initialization voltage selector to select an initialization voltage corresponding to the reference gamma set, from among first through N-th initialization voltage offsets respectively corresponding to the first through N-th gamma sets; a common voltage selector to select a common voltage corresponding to the reference gamma set from among first through N-th common voltage offsets respectively corresponding to the first through N-th gamma sets; and a determiner to determine a target initialization voltage based on the target luminance and the initialization voltage, and to determine a target common voltage based on the target luminance and the common voltage.
Owner:SAMSUNG DISPLAY CO LTD
Transflective liquid crystal display with bent electrodes
InactiveUS20050243251A1Improve the display effectColor shiftNon-linear opticsColor shiftElectric field
A transflective liquid crystal display (2) includes a transparent upper substrate (100), a lower substrate (200) opposite to the upper substrate, a liquid crystal layer (300) sandwiched between the two substrates, gate lines (170) and data lines (180) defining pixel units arranged in a matrix, pixel electrodes (210) and common electrodes (220) associated with one of the substrates to each pixel unit of one of the substrates, a transflective layer (250) formed at one side of one of the substrates. The pixel electrodes and the common electrodes have the same bent form, are disposed alternately, and are substantially parallel to each other. When a voltage is applied on the electrodes, an electric field in two directions is generated. Liquid crystal molecules of the liquid crystal layer are oriented in two directions in accordance with the electric field. Therefore, color shift is reduced.
Owner:INNOLUX CORP
Methods and systems for creating passive stereo 3D images
Methods and systems are provided for creating passive 3D images. A color modulator having at least six filters is used to send light to a single imager in respective RGB spectrums during successive time periods for a left-eye image and then in a different RGB spectrum for a right-eye image, or vice versa. Resulting 3D imaging systems can use a single projector and a single imaging chip without the need for specialized display surfaces, and thus are inexpensive to build and have a low maintenance cost. In addition, better color properties between the left and right images may be provided with a color spectrum of a first image having at least two peaks that surround a peak of the corresponding color for the second image. A color shift of the images may thus be decreased without a loss in other color properties.
Owner:PROJECTIONDESIGN
Three-dimensional display apparatus
InactiveUS20100238546A1Improve chromatic aberrationIncrease chromatic aberrationOptical elementsWaveplateThree dimensional display
A three-dimensional display apparatus including a pair of polarized glasses having first and second circularly polarized eyeglass with different polarization directions, a display panel displaying a linearly polarized image, a third quarter-wave plate and a patterned half-wave plate is provided. The first circularly polarized eyeglass has a first quarter-wave plate and a first half-wave plate. The second circularly polarized eyeglass has a second quarter-wave plate. The angle between polarization direction of the linearly polarized image and optical axis of the third quarter-wave plate is 45 degrees. The angle between optical axis of the first quarter-wave plate and optical axis of the third quarter-wave plate is 90 degrees. The angle between optical axis of the first half-wave plate and optical axis of the patterned half-wave plate is 90 degrees. The angle between optical axis of the second quarter-wave plate and optical axis of the third quarter-wave plate is 55-125 degrees.
Owner:IND TECH RES INST
Photoluminescent fibers, compositions and fabrics made therefrom
Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.
Owner:PERFORMANCE INDICATOR LLC
Image forming apparatus
InactiveUS20070231021A1Reduce color shift and image blurringIncrease in temperatureElectrographic process apparatusDigital output to print unitsImage sensorIncrease temperature
An image forming apparatus which can reduce color shift and image blurring caused by increased temperature in the apparatus and form high-quality images without causing an increase in the cost and size of the apparatus. An image sensor unit reads surface patterns of an intermediate transfer belt. A digital signal processor (DSP) controls the movement of the belt in a transverse direction perpendicular to a moving direction thereof based on the surface patterns of the belt read by the image sensor unit.
Owner:CANON KK
Display apparatus
ActiveUS20130063471A1Correct color shiftIncrease brightnessCathode-ray tube indicatorsRadianceColor correction
A high luminance display apparatus is provided. When a spectral radiance of a backlight at a time point of factory shipment is less than a spectral radiance of external light, a CPU generates a correction matrix for performing color correction so that color produced by external light, i.e., color produced by reflection light of external light by a half mirror conforms to color produced by only irradiation light of the backlight, transmits the generated correction matrix to a video image signal processing section as parameter information, and causes execution of color correction based on the parameter information. The CPU generates a correction matrix based on a spectral radiance of external light detected by a second spectral radiance sensor, a spectral radiance of the backlight detected at the time point of factory shipment, and spectral transmittance of a color filter as well as a color-matching function.
Owner:SHARP KK
In-plane switching liquid crystal display device and method
ActiveUS20060274248A1Viewing angle property is improvedColor is prevented and minimizedNon-linear opticsLiquid-crystal displayPolarizer
An in-plane switching liquid crystal display device includes a first substrate, a second substrate spaced apart from the first substrate, a liquid crystal layer between the first and second substrates, a first polarizer at an outer surface of the first substrate, the first polarizer including a first polarization film and first inner and outer supporting film at both sides of the first polarization film, the first inner supporting film adjacent to the first substrate and having a retardation within a range of about −10 nm to about +10 nm, and a second polarizer at an outer surface of the second substrate, the second polarizer including a second polarization film and second inner and outer supporting film at both sides of the second polarization film, the second inner supporting film adjacent to the second substrate.
Owner:LG DISPLAY CO LTD
Multi-domain vertical alignment liquid crystal display and driving method thereof
ActiveUS20060238687A1Short response timeRemove colorStatic indicating devicesNon-linear opticsVertical alignmentScan line
An MVA-LCD panel, including an active component array substrate, an opposite substrate and a liquid crystal layer disposed between is provided. The active component array substrate includes scan lines, data lines, control lines and pixel units. Each of the pixel units includes an active component, a domain division electrode (DDE) and a pixel electrode. The active component is electrically connected with the corresponding scan line and the corresponding data line, the DDE being electrically connected with the corresponding control line, the pixel electrode being electrically connected with the active component. The pixel electrode has first slits, and the first DDE are disposed under the first slits. The opposite substrate has a common electrode layer facing toward the active component array substrate. The common electrode layer includes second slits and at least a part of the second slits is disposed over the first domain division electrode.
Owner:AU OPTRONICS CORP
System and Method of Adjusting the Color of Image Objects Based on Chained Reference Points, Gradient Characterization, and Pre-stored Indicators of Environmental Lighting Conditions
ActiveUS20150207960A1Eliminate the effects ofColor shiftImage enhancementImage analysisColor shiftEffect light
The invention relates to a system and method for adjusting the color of image objects based on chained reference points and / or light gradients to account for the effects of lighting conditions that can vary across different environments, according to an implementation of the invention. To chain reference points and / or characterize light gradients, the system may determine a color shift value, which represents the effects of lighting conditions of a target environment (in which the lighting conditions may be unknown) relative to a reference environment (in which the lighting conditions may be known). The chained reference points, gradient characterization, color shift values, and / or other information may be used to store a delta map that characterizes the lighting conditions of an environment so that it may be reused for subsequent color shifts without re-characterizing the environment.
Owner:CARBON OBJECTS
Belt moving device and image forming apparatus using same
InactiveUS20080213009A1Prevent color shiftHigh quality imagingElectrographic process apparatusColor shiftBelt speed
In a belt moving device that is capable of reducing belt speed fluctuation and positional deviation from a target belt position in a sub-scanning direction and performing highly precise position control in a main scanning direction, and an image forming apparatus that uses this belt moving device to prevent color shift in both the main scanning direction and sub-scanning direction of a formed image such that a high-quality image can be formed, belt shift control means reduce shift position variation within a single round trip of an endless belt by feeding back a target value for canceling out the shift position variation within a single round trip of the endless belt and feeding forward a value obtained by multiplying an inverse transfer characteristic of moving means by a transfer characteristic of a target value of the moving means in relation to the control content of the moving means.
Owner:RICOH KK
Pixel structure and liquid crystal display panel
ActiveUS20080158464A1Easy to adjustLoss of aperture ratioStatic indicating devicesNon-linear opticsLiquid-crystal displayColor shift
A pixel structure including a scan line, a data line, a first sub-pixel, a coupling electrode and a second sub-pixel is provided. The first sub-pixel includes a first thin film transistor (TFT) and a first pixel electrode, and the first pixel electrode is electrically connected to the scan line and the data line via the first TFT. The coupling electrode is disposed above the data line and electrically insulated from the data line. The second sub-pixel includes a second thin film transistor and a second pixel electrode. The second pixel electrode is electrically connected to the second TFT, and the second TFT is electrically connected to the coupling electrode. When seeing an image from a slant direction, color shift of image can be solved by utilizing the pixel structure. Besides, a liquid crystal display panel having the described pixel structure is also provided.
Owner:NYTELL SOFTWARE LLC
Liquid crystal panel and liquid crystal display
ActiveUS20070002233A1Less discolorationReduce the amount requiredNon-linear opticsOptical elementsEngineeringPolarizer
A liquid crystal panel of the present invention comprises at least: a liquid crystal cell comprising a liquid crystal layer containing a liquid crystal molecule that is oriented in homogeneous alignment with no electric field applied thereto; a first polarizer placed on one side of the liquid crystal cell; a first optical element placed between the liquid crystal cell and the first polarizer; and a second polarizer placed on the other side of the liquid crystal cell, wherein the first optical element is substantially optically isotropic, the liquid crystal cell has an initial alignment direction that is substantially parallel to the direction of an absorption axis of the first polarizer, and the absorption axis of the first polarizer is substantially perpendicular to an absorption axis of the second polarizer. The liquid crystal panel shows less discoloration of images even when the screen is viewed from oblique directions.
Owner:NITTO DENKO CORP
Marked precoated medical device and method of manufacturing same
InactiveUS20120271248A1Fully dryConstant diameterSurgeryPretreated surfacesCoated surfaceGuide wires
A method of manufacturing a coated medical device, such as a medical guide wire, including at least applying a first colored coating to at least a first portion of an outer surface of a medical guide wire, securing a first end of the medical guide wire, and for each a designated quantity of turns, turn a second end of the medical guide wire upon a longitudinal axis of the medical guide wire. The method of manufacturing also includes securing the second end of the medical guide wire, blocking at least a first portion of the coated surface of the medical guide wire, applying a second contrasting colored coating to at least a second, unblocked portion of the outer surface of the medical guide wire and releasing the first end and the second end of the medical guide wire to display at least one spiral marking formed along a length of the medical guide wire.
Owner:INNOVATECH
Light guide blade with color balancing structures and blue absorption compensation for large screen LED backlight unit
ActiveUS20090316077A1Improve efficiencyPrevent leakagePlanar/plate-like light guidesNon-linear opticsColor shiftProgressive scan
One or more embodiments of the present invention provide apparatuses, methods and systems to form a thin LED backlight unit for a large-screen flat-panel display. The backlight unit is able to achieve improved color mixing within a shorter mixing distance than the conventional art, while maintaining desired brightness uniformity, thereby allowing for a shorter bezel of a display device. One or more embodiments of the present invention include one or more light guides, which, by operating together, provide thin backlight units. High system efficiency is provided by introducing a recycling enhancement component, and uniform color distribution is achieved by incorporating color shift compensation. Multiple light guides are arranged adjacent to one another can offer a progressive scan illumination feature.
Owner:JABIL CIRCUIT INC
Porous Glass Substrate For Displays And Method Of Manufacturing The Same
ActiveUS20130299792A1Reduce manufacturing costEliminate dangerLayered productsFinal product manufacturePorous layerOrganic light emitting device
A porous glass substrate for displays and a method of manufacturing the same, with which the optical characteristics of a display such as an organic light-emitting device (OLED) can be improved. The porous glass substrate includes a glass substrate and a porous layer formed in at least one portion of one surface of the glass substrate and extending into the glass substrate, the refractive index of the porous layer being smaller than the refractive index of the glass substrate. The porous layer has a plurality of pores which is formed in the glass substrate such that at least one component of the glass substrate except for silicon dioxide (SiO2) is eluted from the glass substrate.
Owner:SAMSUNG CORNING PRECISION MATERIALS CO LTD
Optical Film For Reducing Color Shift And Liquid Crystal Display Having The Same
ActiveUS20120176572A1Reduce color castReduce colorDiffusing elementsPolarising elementsCamera lensPolymer resin
Owner:SAMSUNG CORNING PRECISION MATERIALS CO LTD
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