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32results about How to "Deterioration of contrast" patented technology
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Display panel module
InactiveUS20050017620A1Effective shieldingPrevent contrast deteriorationIncadescent screens/filtersMagnetic/electric field screeningComputer moduleEngineering
Disclosed is a display panel module including: a display panel; a film type front filter formed on the display panel for being combined with the display panel; and a ground electrode coupled to an EMI shielding film of the film type front filter and upwardly bent to encompass at least one side of the film type front filter, and thereby preventing the emission of electromagnetic waves to outside.
Owner:LG ELECTRONICS INC
Image processor, integrated circuit device, and electronic apparatus
InactiveUS20090274389A1Contrast is correctedMaintaining local contrastTelevision system detailsCharacter and pattern recognitionLocal averageBrightness perception
An image processor includes a statistic-data acquiring section acquiring statistic data of a luminance value of a displayed image, the statistic-value acquiring section acquires, as the statistic data, a first index regarding a shadow pixel group and a second index regarding a highlight pixel group; a brightness index computing section computing a brightness index of the displayed image based on the statistic data, the brightness index computing section computing the brightness index from the first and the second indexes; a filtering section filtering luminance values of at least a part of a plurality of pixels included in a target pixel region of the displayed image to compute a local average luminance value; and a contrast correcting section performing contrast correction of the displayed image based on the brightness index and the local average luminance value.
Owner:SEIKO EPSON CORP
Process for producing microcapsule enclosing electrophoretic particle dispersion, microcapsule enclosing electrophoretic particle dispersion and reversible display medium containing the same
InactiveUS20050179983A1Increase display contrastReduce production efficiencyLiposomal deliveryMicroballoon preparationElectrophoresisPolymer chemistry
Owner:TOYO INK SC HOLD CO LTD
Liquid Crystal Display Device
InactiveUS20090021673A1Low hazeExcellent in wavelength dispersion characteristicSynthetic resin layered productsCellulosic plastic layered productsIn planeCellulose
A cellulose acylate film, which has an in-plane retardation (Re) and a retardation in a thickness direction (Rth) satisfying relations of equations (1) to (6) and has a thickness of 30 μm or greater but less than 70 μm:20 nm<Re(548)<100 nm (1)100 nm<Rth(548)<400 nm (2)0.5≦Re(446) / Re(548)≦0.90 (3)1.05≦Re(629) / Re(548)≦1.50 (4)0.5≦Rth(446) / Rth(548)≦0.95 (5)1.05≦Rth(629) / Rth(548)≦1.50 (6).
Owner:FUJIFILM CORP
Liquid crystal display device
InactiveUS6232942B1Easy to operate and controlHigh-contrast with linear-gray scale display characteristicStatic indicating devicesLiquid-crystal displayOptical transmittance
An antiferroelectric liquid crystal display device provided with means for preventing optical transmittance or the mean value of the optical transmittance from changing in a holding period tk. Thereby, the black display state thereof is stabilized. Further, the control of a gray shades display is facilitated. Moreover, linear gray scale characteristics and high contrast are provided. Thus, in the antiferroelectric liquid crystal display device having a selection period tw and the holding period tk, the optimum holding voltage (Vh), by which the optical transmittance little changes in the holding period tk, is applied to liquid crystals.
Owner:CITIZEN WATCH CO LTD
Light emitting apparatus, method of driving light emitting apparatus, and electronic apparatus
ActiveUS20100321422A1Simple configurationSufficient time periodCathode-ray tube indicatorsInput/output processes for data processingScan lineEngineering
Provided is a light emitting apparatus where each pixel circuit is provided with the reset transistor, which is disposed between the node of the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit. In addition, in the initialization period before the selection period, in which the scan line corresponding to the pixel circuit is selected, and in the compensation period, the reset transistor of the pixel circuit is set to the ON state, and the values of the power supply voltages output to the first feed line corresponding to the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit are variably controlled, so that the initialization or compensation operation of the pixel circuit is performed.
Owner:SEIKO EPSON CORP
Projection screen
InactiveUS20050018285A1Improve propertiesImprove permeabilityDiffusing elementsOptical filtersProjection screenOptical thin film
A clear image unaffected by the brightness of the projection environment. The projection screen according to the present invention is a projection screen for projecting thereupon narrow-band tricolor wavelength band light to display an image, and comprises an optical thin film (3) which has high reflection properties regarding the narrow-band tricolor wavelength band light, and has high transmission properties regarding at least visible wavelength band light other than the wavelength band light, on a screen base (2). With the projection screen according to the present invention configured as above, the optical thin film (3) serves as a so-called band filter. That is to say, the optical thin film (3) particularly reflects narrow-band tricolor wavelength band light and transmits light of other wavelengths, thereby functioning as a narrow-band tricolor wavelength bandwidth filter acting to separate these.
Owner:SONY CORP
Antiglare hard coat film
ActiveUS20120141736A1Improve imaging clarityDeterioration of contrastLayered productsDiffusing elementsVisibilityParticulates
An antiglare hard coat film is provided in which light transmittance is high without giving antiglare properties more than necessary, a haze value is low, transparency is excellent, image clarity is high, glare of an image is suppressed, whitishness (white blur) of the film is reduced, contrast deterioration is suppressed, and visibility of the display is improved as compared with prior-art antiglare films.This antiglare hard coat film is formed by providing an antiglare hard coat layer containing organic particulates and a resin on a transparent film. When an average value of height in an evaluation region on the surface of the antiglare hard coat film is set to zero (0), a maximum sectional height represented by a difference between a height maximum value in the evaluation region and a height minimum value in the evaluation region is 0.6 μm or less.
Owner:NIPPON PAPER CHEM
Liquid crystal display device, method for manufacturing the same, and electronic apparatus
ActiveUS6927817B2Efficient preparationReduce manufacturing costNon-linear opticsCapacitanceLiquid-crystal display
The invention provides a liquid crystal display device having a transmissive display region and a reflective display region in one dot region, and capable of obtaining a bright and high-contrast display in both a reflective display and a transmissive display. In particular, a liquid crystal display device according to the present invention can include a reflective display region and a transmissive display region provided in one dot region, and a reflection layer provided in the reflective display region. A pixel electrode, a TFT element for driving the pixel electrode, a capacitive electrode connected to the pixel electrode, an electrode part arranged to oppose the capacitive electrode via an insulating layer are formed in the dot region. Further, in the display regions within the dot region, the capacitive electrode or the capacitive line can be arranged at a position where it overlaps, in plan view, the inclined region between the reflective display region and the transflective display region.
Owner:BOE TECH GRP CO LTD
Process for producing microcapsule enclosing electrophoretic particle dispersion, microcapsule enclosing electrophoretic particle dispersion and reversible display medium containing the same
InactiveUS7488513B2Increase display contrastReduce production efficiencyLiquid surface applicatorsRotary stirring mixersElectrophoresisPolymer chemistry
Owner:TOYO INK SC HOLD CO LTD
Liquid crystal display device
ActiveUS20120200796A1Avoid light leakageSharp contrastFire alarm electric actuationFire alarm mechanical actuationUV curingLiquid-crystal display
In a liquid crystal display device having a front window, light from a backlight is prevented from leaking through chamfered edges of the front window. An upper polarizing plate is formed on an opposing substrate and a light shielding material is formed abutting on an outer edge of the upper polarizing plate. Edges of the upper polarizing plate are located inward of edges of the front window. The upper polarizing plate and the front window are bonded with a boding material including an ultraviolet curable resin. The ultraviolet curable resin also lies over the light shielding material. Chamfers are formed in the front window and the ultraviolet curable resin does not adhere to the chamfers of the front window. By this structure, light from the backlight is prevented from entering the internal part of the front window through the chamfers of the front window and light leakage is prevented.
Owner:JAPAN DISPLAY INC
Electrophoretic device and electronic equipment
ActiveUS20060187527A1Deterioration of contrastNon-linear opticsOptical elementsCapacitanceElectrophoresis
An electrophoretic device including a pair of electrodes, an electrophoretic dispersion liquid including an electrophoretic particle and a dispersion medium and having electric properties of electric resistance Rep and capacitance Cep, a microcapsule in which the electrophoretic dispersion liquid is enclosed and provided between the pair of the electrodes and a binder layer fixing the microcapsule between the electrodes and having electric properties of electric resistance Rb and capacitance Cb, and wherein a ratio of the electric properties of the electrophoretic dispersion liquid and the binder layer satisfies a relationship RbCb≦RepCep.
Owner:E INK CORPORATION
Liquid crystal display element
InactiveUS20020039167A1Increase contrastHigh light reflectivityLiquid crystal compositionsSolid-state devicesCrystallographyDielectric anisotropy
Disclosed is a liquid crystal display apparatus comprising a pair of substrates and a liquid crystal layer provided between the substrates, the liquid crystal layer containing a liquid crystal composition that exhibits a cholesteric phase. The liquid crystal composition contains a mixture of a chiral material and nematic liquid crystal. The liquid crystal display layer is configured to satisfies the following conditions: a viscosity a [cP] of the liquid crystal composition is in a range from 30 to 150; a dielectric anisotropy b of the liquid crystal composition is in a range from 5 to 50; a thickness c [mum] of the liquid crystal layer is in a range from 3 to 8; and a product of a, b, and c is not less than 3500.
Owner:MINOLTA CO LTD
Light emitting apparatus, method of driving light emitting apparatus, and electronic apparatus
ActiveUS8624880B2Simple configurationEnough timeCathode-ray tube indicatorsInput/output processes for data processingScan lineEngineering
Provided is a light emitting apparatus where each pixel circuit is provided with the reset transistor, which is disposed between the node of the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit. In addition, in the initialization period before the selection period, in which the scan line corresponding to the pixel circuit is selected, and in the compensation period, the reset transistor of the pixel circuit is set to the ON state, and the values of the power supply voltages output to the first feed line corresponding to the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit are variably controlled, so that the initialization or compensation operation of the pixel circuit is performed.
Owner:SEIKO EPSON CORP
Liquid crystal display and manufacturing method thereof
InactiveUS20080123037A1Improve response speedIncrease brightnessNon-linear opticsLiquid-crystal displayEngineering
A method of manufacturing a liquid crystal display includes the steps of forming pixel electrodes on inside surfaces of a couple of substrates facing each other, each of the pixel electrodes having gaps; sealing, between the couple of substrates with the pixel electrodes formed, a liquid crystal layer containing a light curing material; and exposing the liquid crystal layer through use of a light shielding film having a plurality of openings, under a voltage applied between a pair of pixel electrodes facing each other on the couple of substrates, where the gaps are alternately disposed to form a staggered arrangement between the pair of pixel electrodes and, spacing between adjacent openings of the light shielding film is smaller than spacing, in a substrate surface direction, between the gap of a pixel electrode on one substrate and the gap of a pixel electrode on the other substrate.
Owner:SONY CORP
Liquid crystal display device and electronic apparatus
InactiveUS7072011B2Quality improvementContrast deterioration of the reflective display can be reduced or preventedNon-linear opticsLiquid-crystal displayDisplay device
The invention provides a transflective liquid crystal display device which performs high-contrast display for both the transmissive display and the reflective display. A liquid crystal display device according to the present invention has transmissive a display area and a reflective display area at each dot. In addition, it has a reflective electrode disposed in the reflective display area and also has a thickness-adjusting layer to adjust a liquid crystal layer disposed therein in order to make a liquid crystal layer thinner in the reflective display area than in the transmissive display area. Also, the upper surface of an edge portion of the reflective electrode, the edge portion lying in a boundary area between the transmissive display area and the reflective display area, is arranged so as to serve as a mirror reflective surface.
Owner:138 EAST LCD ADVANCEMENTS LTD
Liquid crystal display device
InactiveUS20120075565A1Reliable alignmentDeterioration of contrastNon-linear opticsTransmittanceEngineering
The present invention provides a liquid crystal display device that can control the alignment of liquid crystal molecules more reliably and also can suppress the deterioration of the contrast characteristics and a reduction in transmittance without complicating the manufacturing process of a matrix substrate. Specifically disclosed is a liquid crystal display device including a pair of substrates (110 and 130) and a liquid crystal layer held between the pair of substrates. One of the pair of substrates has pixel electrodes (113). The other of the pair of substrates has a first opposite electrode (132), an insulating layer (133) formed on the first opposite electrode, and a second opposite electrode (134) formed on the insulating layer. The second opposite electrode has an opening (137), and the opening overlaps at least with a pixel when the pair of substrates are observed in a plan view, and the first opposite electrode overlaps at least with part of said opening in the pixel when the pair of substrates are observed in a plan view.
Owner:SHARP KK
Projection screen
InactiveUS7057809B2Effectively reducing influenceReflection of external light can be suppressedDiffusing elementsOptical filtersProjection screenBand-pass filter
Owner:SONY CORP
Electrophoretic device and electronic equipment
ActiveUS7248395B2Deterioration of contrastStatic indicating devicesNon-linear opticsCapacitanceElectrophoresis
An electrophoretic device including a pair of electrodes, an electrophoretic dispersion liquid including an electrophoretic particle and a dispersion medium and having electric properties of electric resistance Rep and capacitance Cep, a microcapsule in which the electrophoretic dispersion liquid is enclosed and provided between the pair of the electrodes and a binder layer fixing the microcapsule between the electrodes and having electric properties of electric resistance Rb and capacitance Cb, and wherein a ratio of the electric properties of the electrophoretic dispersion liquid and the binder layer satisfies a relationship RbCb≦RepCep.
Owner:E INK CORPORATION
Front sheet and display device using the same
InactiveUS20070279939A1Improve contrastTransmittance be deteriorateIncadescent screens/filtersMagnetic/electric field screeningDisplay contrastEngineering
A technique for a display device using a display panel with Lambert light distribution, such as a plasma display panel, which displays a bright image with less contrast deterioration. This device has a front sheet which is integrally or separately located in front of the display panel. The front sheet includes light guides which extend in the horizontal direction and have a virtually convex cross section in the vertical direction with their apexes on the light exit side. A light reflection layer and a light-absorbing layer are sequentially stacked on the lateral sides of the light guides.
Owner:MAXELL HLDG LTD
Light source unit
ActiveUS20200064528A1Sharp contrastIncrease brightnessMechanical apparatusMirrorsColored whiteColor transformation
A light source unit is provided which makes an excellent contrast between the black display portions and the white display portions if mounted on a display, while having a high frontal luminance. The light source unit includes: a light source; a color conversion material that converts incident light from the light source into light having a longer wavelength than the incident light; and a reflective film that exists between the light source and the color conversion material and that transmits light from the light source incident perpendicularly on the film surface and reflects light from the color conversion material incident perpendicularly on the film surface; wherein the P-Polarized light of the light incident from the light source on the reflective film surface at an angle of 20°, 40°, and 60° is reflected at a reflectance of R20(%), R40(%), and R60(%) respectively, which satisfy R20<R40<R60.
Owner:TORAY IND INC
Tone adjustment method for digital image and electronic apparatus using the same
InactiveUS8189073B2Reduce the degree of deteriorationReduce contrastTelevision system detailsColor signal processing circuitsTone mappingComputer graphics (images)
A tone adjustment method for a digital image and an electronic apparatus using the same are presented. A digital image is loaded. A detail image layer and a primary image layer are generated according to the digital image. A tone mapping procedure is performed on the primary image layer, for generating a tone mapping layer. A detail gain lookup table is loaded and then a corresponding gain is looked up according to each pixel value in the primary image layer, for generating a detail gain adjustment layer. A detail gain control procedure is performed and then a detail gain adjustment is performed on the detail gain adjustment layer and the detail image layer, for generating a gain correction layer. The gain correction layer and the tone mapping layer are combined, and then a combined layer is output, thereby completing the tone adjustment for the digital image.
Owner:ALTEK CORP
Method and magnetic resonance apparatus for optimizing the simultaneous acquisition of magnetic resonance data from multiple slabs or slices
ActiveUS20180299524A1Increase the number ofIncrease spacingMeasurements using NMR imaging systemsMagnitude/direction of magnetic fieldsResonanceNuclear magnetic resonance
In an acquisition of magnetic resonance (MR) data from a volume portion of an object, a set of a number of planned volume elements is predefined in the volume portion, wherein MR data are to be acquired from each of the planned volume elements. Furthermore, conditions that are to be fulfilled in the acquisition of the MR data of the planned volume elements are predefined. Dependent upon the planned volume elements and the conditions, a set of additional volume elements is determined. The MR data are acquired from at least two volume elements simultaneously, the at least two volume elements including one volume element from the set of the planned volume elements and one volume element from the set of the additional volume elements.
Owner:SIEMENS HEALTHCARE GMBH
Front sheet and display device using the same
InactiveUS7791257B2Accurate focusSuppressing contrast deteriorationIncadescent screens/filtersMagnetic/electric field screeningLight guideLight reflection
Owner:MAXELL HLDG LTD
Tone adjustment method for digital image and electronic apparatus using the same
InactiveUS20090316019A1Reduce contrast deteriorationReduce noiseTelevision system detailsColor signal processing circuitsTone mappingLookup table
A tone adjustment method for a digital image and an electronic apparatus using the same are presented. The method includes steps. A digital image is loaded. A detail image layer and a primary image layer are generated according to the digital image. A tone mapping procedure is performed on the primary image layer, for generate a tone mapping layer. A detail gain lookup table is loaded and then a corresponding gain is looked up according to each pixel value in the primary image layer, for generate a detail gain adjustment layer. A detail gain control procedure is performed and then a detail gain adjustment is performed on the detail gain adjustment layer and the detail image layer, for generate a gain correction layer. The gain correction layer and the tone mapping layer are combined, and then a combined layer is output, thereby completing the tone adjustment for the digital image.
Owner:ALTEK CORP
Liquid crystal display device
ActiveUS8953123B2Prevent contrast deteriorationDeterioration of contrastFire alarm electric actuationFire alarm mechanical actuationUV curingLiquid-crystal display
Owner:JAPAN DISPLAY INC
Plasma display device
InactiveUS20070252787A1Minimize changesDeterioration of contrastStatic indicating devicesContrast ratioPlasma display
Initialization waveforms with different voltages are applied respectively to a predetermined subfield with a small number of sustain pulses, and a subfield with the smallest number of sustain pulses in subfields other than the predetermined subfield. This offers a plasma display device that achieves a correct write operation in all discharge cells even if discharge interference occurs between adjacent cells, and also achieves a high contrast.
Owner:PANASONIC CORP
Light source unit
ActiveUS10732332B2Good colorFrontal luminance is also reducedMechanical apparatusMirrorsColored whiteColor transformation
A light source unit is provided which makes an excellent contrast between the black display portions and the white display portions if mounted on a display, while having a high frontal luminance. The light source unit includes: a light source; a color conversion material that converts incident light from the light source into light having a longer wavelength than the incident light; and a reflective film that exists between the light source and the color conversion material and that transmits light from the light source incident perpendicularly on the film surface and reflects light from the color conversion material incident perpendicularly on the film surface; wherein the P-Polarized light of the light incident from the light source on the reflective film surface at an angle of 20°, 40°, and 60° is reflected at a reflectance of R20(%), R40(%), and R60(%) respectively, which satisfy R20<R40<R60.
Owner:TORAY IND INC
Liquid crystal display and manufacturing method thereof
A liquid crystal display including a couple of substrates facing each other and pixel electrodes formed on inside surfaces of the couple of substrates, each of the pixel electrodes has gaps. A liquid crystal layer is sealed between the couple of substrates with the pixel electrodes formed and the gaps are alternately disposed to form a staggered arrangement between the pair of pixel electrodes. The liquid crystal layer has pre-tilt regions where liquid crystal molecules are tilted. In these regions, the spacing between adjacent pre-tilt regions is smaller than spacing in the substrate surface direction between the gap of a pixel electrode on one substrate and the gap of a pixel electrode on the other substrate.
Owner:SONY CORP
Display device
PendingUS20220085340A1Avoid light transmittance dropPrevent contrast deteriorationSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceEngineering
A display device includes: a substrate; a plurality of transistors disposed on the substrate; an insulating layer disposed on the plurality of transistors; a data line and a driving voltage line disposed on the insulating layer; a pixel electrode disposed on the data line or the driving voltage line; a pixel defining layer disposed on the pixel electrode and including a pixel opening that overlaps the pixel electrode; a light emitting element layer disposed in the pixel opening; and a common electrode disposed on the light emitting element layer, wherein the pixel opening includes a first sub-pixel opening and a second sub-pixel opening and a first blocking portion that is disposed between the first sub-pixel opening and the second sub-pixel opening.
Owner:SAMSUNG DISPLAY CO LTD
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