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42results about How to "Decrease in display luminance" patented technology
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Information processing apparatus and power saving control method
InactiveUS20050071702A1Decrease in display luminanceEnergy efficient ICTVolume/mass flow measurementInformation processingControl unit
An information processing apparatus includes an input device, and a display unit. The information processing apparatus further includes a detection unit configured to detect whether a system state of the information processing apparatus is an idle state or a non-idle state, by monitoring an operation state of the input device, and a control unit configured to decrease a display luminance of the display unit and cause the display unit to display a predetermined image when the detection unit detects the idle state, and configured to restore the display unit to a display state immediately prior to the detection of the idle state when the detection unit detects the non-idle state.
Owner:KK TOSHIBA
Optical stack for directional display
ActiveUS20180321553A1Decrease in display luminanceImprove visibilityMechanical apparatusInstrument arrangements/adaptationsVisibilitySpatial light modulator
A privacy display comprises a spatial light modulator and a passive retarder arranged between first and second polarisers arranged in series with the spatial light modulator. On-axis light from the spatial light modulator is directed without loss, and off-axis light has reduced luminance. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction over a wide polar field of view. Off-axis visibility of the display in an automotive vehicle can be reduced.
Owner:REALD SPARK LLC
Light source and display device
InactiveUS7205964B1Raising element temperatureDecrease in luminanceTelevision system detailsStatic indicating devicesLiquid-crystal displayDisplay device
The invention provides electroluminescent (EL) elements, such that a red EL light source, a green EL light source and a blue EL light source emit red color light, green color light, and blue color light, respectively, and are disposed at the rear of liquid crystal display elements. Each EL light source includes an organic EL element in which an organic thin film emits light. Each EL light source has a structure in which an organic luminescent layer is sandwiched between an indium tin oxide (ITO) electrode and a metal electrode which have striped patterns which are orthogonal to each other, and sections (luminescent sections) at which the striped patterns of the ITO electrode and the metal electrode intersect with each other emit light. The luminescent sections are arrayed two-dimensionally on a glass substrate and illuminate the entire display area of the liquid crystal display element.
Owner:SEIKO EPSON CORP
Display device
InactiveUS20090219734A1Big spaceReduce lightPlanar/plate-like light guidesIlluminated signsLight guideDisplay device
A display device has a light guide plate formed with a display pattern by a plurality of diffusion dots having translucency in a display pattern formed region, a light shielding layer, and a light source. A plurality of the light guide plates are arranged facing each other, and the light shielding layer is sandwiched between the light guide plates. Light from the light source is selectively introduced to one of the light guide plates to display the display pattern of the light guide plate. The light shielding layer has a surface facing an observer's side formed by a low reflectivity material and a surface facing a side opposite to the observer's side formed by a high reflectivity material. A region facing the display pattern of the light guide plate positioned on the side opposite to the observer's side than the light shielding layer is cut out.
Owner:ORMON CORP
Transmission liquid crystal display device
InactiveUS20080180384A1Reduce power consumptionReduce light intensityCathode-ray tube indicatorsNon-linear opticsLiquid-crystal displayLightness
The transmission liquid crystal display device includes a liquid crystal panel and a backlight, wherein the liquid crystal panel has pixels each of which is divided into four sub pixels as red (R), green (G), blue (B), and white (W) sub pixels. Further, an emission luminance of the backlight can be controlled.
Owner:SHARP KK
Gamma compensation method and display device using the same
ActiveUS20140320552A1Degradation of image qualityDecrease in display luminanceCathode-ray tube indicatorsInput/output processes for data processingIlluminanceGray level
A gamma compensation method and a display device using the same are disclosed. The gamma compensation method includes: sensing a level of external illuminance; determining whether the sensed level of external illuminance is equal to or lower than a predetermined illuminance, wherein when the sensed level is equal to or lower than the predetermined illuminance, the luminance of the display device is reduced to an optimum luminance; and modulating gray levels of input data of the display device based on a first gamma curve when the sensed level of external illuminance is equal to or lower than the predetermined illuminance, and modulating based on a second gamma curve when the sensed level of external illuminance is greater than the predetermined illuminance, wherein the first gamma curve includes a concave curve set in a low gray level area and a convex curve set in a high gray level area, and the concave curve and the convex curve are connected via an inflection point.
Owner:LG DISPLAY CO LTD
Display apparatus and illumination unit
ActiveUS20140300528A1Decrease in display luminanceIncrease volumeStatic indicating devicesOptical light guidesDivergence angleOptoelectronics
An illumination unit capable of obtaining high luminance and a display apparatus including it are provided. The illumination unit includes an illumination optical system generating the illumination light, and a lens sheet narrowing a divergence angle of the illumination light. The illumination optical system includes a first transparent substrate and a second transparent substrate that are separated from each other and are arranged to face each other, and a light source applying light to an end face of the first transparent substrate or of the second transparent substrate. The illumination optical system is provided in a gap between the first transparent substrate and the second transparent substrate, and includes a light modulation layer exhibiting scattering characteristics or transparent characteristics with respect to the light from the light source in accordance with a magnitude of an electric field. The illumination optical system includes an electrode generating an electric field that generates a plurality of linear scattering regions in the light modulation layer in a three-dimensional display mode, and generating an electric filed that generates a planar scattering region in the light modulation layer in a two-dimensional display mode.
Owner:SONY CORP
Liquid Crystal Display Device
ActiveUS20090033845A1Increase the aperture ratioQuality improvementStatic indicating devicesNon-linear opticsLiquid-crystal displayEngineering
A liquid crystal display panel is provided with a light-shielding film, and a plurality of subpixels arranged in a matrix. The subpixels each include a first electrode formed on a first substrate, a second electrode formed to be located upper than the first electrode, and a color filter formed on a second substrate. The second electrode has a plurality of linear portions. The subpixels are disposed adjacently along the direction of display lines, and any two of the adjacent subpixels have the same color of color filter. The light-shielding film is formed on the second substrate not to cover the pixel boundary between the two adjacent subpixels but to cover pixel boundaries of the remaining subpixels. The second electrodes of the two adjacent subpixels are formed separately, and assuming that the two adjacent subpixels are first and second subpixels, at least the second electrode of the first subpixel is disposed also to an area of the second subpixel beyond the pixel boundary between the first and second subpixels. Such a configuration favorably increases an aperture ratio of a liquid crystal display device including a color filter.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Display element and display apparatus
InactiveUS20050179632A1Reduce degree changeDegree of change is smallStatic indicating devicesNon-linear opticsElectric fieldPhysics
A display element includes: a pair of substrates, at least one of which is transparent; a medium, between the substrates, the medium being changeable in an optical anisotropy magnitude by and according to electric field application; and a region in which a pixel electrode and a counter electrode overlap with each other with an insulating layer therebetween.
Owner:SHARP KK
Lighting unit, display, and three-dimensional display
ActiveUS20130258711A1Increase brightnessReduce power consumptionMechanical apparatusStatic indicating devicesLight guideOptoelectronics
In a scan system, a lighting unit, a display, and a three-dimensional display that have all of high luminance, low power consumption, and high reliability of a circuit board are provided. A light modulation device bonded to a light guide plate is provided with a light modulation layer exhibiting scattering property or transparency to light propagating through the light guide plate. The light modulation layer is interposed between a lower electrode that is configured of a plurality of partial electrodes extending in a direction parallel to a light incident surface and a sheet-like upper electrode. A drive circuit sequentially drives the plurality of partial electrodes to scan a region exhibiting the scattering property of the light modulation layer in a direction orthogonal to the light incident surface.
Owner:SONY CORP
Electronic apparatus with display control function
InactiveUS20060087503A1Easily returned to original stateIncrease brightnessCathode-ray tube indicatorsInput/output processes for data processingPower savingControl function
To provide a method of reducing power consumption of an electronic apparatus including a display unit, and an electronic apparatus with a display control function that set a predetermined time, execute a power-saving mode when the predetermined time has elapsed, and return to an original state automatically when the user simply performs a particular operation. An electronic apparatus with a display control function includes an operation instructing unit 4 that instructs an operation instructed by operating plural input keys 3 arranged on a remote control 2, an operation control unit 5 that controls an operation, a timer 6 that performs timer setting and measurement of time, a setting holding memory 7 that holds a setting for a power-saving mode, a screen display control unit 8 that controls the display screen 9, and the display screen 9 that performs blinking display.
Owner:ORION ELECTRIC CO LTD
Liquid crystal display device with improved display luminance
InactiveUS20090058794A1Improve luminanceDecrease in display luminanceStatic indicating devicesLiquid-crystal displayEngineering
A liquid crystal display device has: a liquid crystal display unit including a plurality of common electrodes to be sequentially applied with a drive voltage and segment electrodes for segment display, facing each common electrode, and a plurality of display areas divided for one or more common electrodes; a backlight including a multicolor light source provided for each display area; and a drive unit for performing field sequential driving of multiplex driving by scanning the plurality of common electrodes in such a manner that after all common electrodes in one display area are scanned, common electrodes in the next display area start being scanned, and by synchronizing scanning each common electrode with an emission operation of the multicolor light source in each display area.
Owner:STANLEY ELECTRIC CO LTD
Organic el display luminance control method and luminance control circuit
InactiveUS20050083268A1Display luminance can be enhancedDecrease in display luminanceSolid-state devicesSemiconductor/solid-state device manufacturingSignal onControl circuit
A luminance control method for an organic EL display comprises a first step of calculating a luminance accumulation value for each screen on the basis of a video input signal, and a second step of controlling the amplitude of the video input signal on the basis of the luminance accumulation value calculated in the first step and feeding to the organic EL display the video signal whose amplitude has been controlled.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Organic EL display luminance control method and luminance control circuit
InactiveUS7304654B2Small amplitudeDecrease in display luminanceSolid-state devicesSemiconductor/solid-state device manufacturingSignal onControl circuit
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Image display apparatus for displaying image, image display method for displaying image, and storage medium
ActiveUS20170293205A1Decrease in display luminanceEnhancing a contour of an objectTelevision system detailsGeometric image transformationComputer graphics (images)Lightness
An image display apparatus includes an image acquisition unit configured to acquire an input image to be displayed on a display unit and a display control unit configured to reduce display luminance of the display unit in a case where a display image obtained by enlarging the input image is displayed on the display unit or in a case where a display image obtained by enhancing a contour of an object in the input image is displayed on the display unit.
Owner:CANON KK
Information device, and computer-readable storage medium for computer program
InactiveUS20140049493A1Increase profitDecrease in display luminanceDigital data processing detailsProjectorsInformation deviceComputer science
An information device includes a touch-sensitive panel that is used for display and operation; an operation check portion configured to check whether operation performed on the information device is first operation that is predefined operation or second operation other than the first operation; and a luminance setting portion configured to, when a luminance set value of the touch-sensitive panel is set at a low luminance value that is set for a case of power saving, and when the operation check portion checks that the operation performed on the information device is the first operation, remain the luminance set value unchanged, and, when the luminance set value is set at the low luminance value, and when the operation check portion checks that the operation performed on the information device is the second operation, set, as the luminance set value, a high luminance value greater than the low luminance value.
Owner:KONICA MINOLTA INC
Apparatus and method for luminance adjustment of plasma display panel
InactiveUS20070115213A1Gradation will not be sacrificeImage not be sacrificedCathode-ray tube indicatorsInput/output processes for data processingGray levelPlasma display
A luminance adjustment apparatus for a plasma display panel (PDP) is proposed. The luminance adjustment apparatus includes a luminance controller, a gray level shifter and a power controller. The luminance controller outputs a gray level shifting signal and a power adjustment signal. The gray level shifter receives a first luminance video signal and the gray level shifting signal, after the first luminance video signal being level shifted according to the gray level shifting signal, a gray level shifted video signal is output. The power controller is used to receive the gray level shifted video signal and the power adjustment signal, after the gray level shifted video signal being power adjusted by the power adjustment signal, a sub-field controlling signal is output. This enables the preservation of image gradation when adjusting luminance of a video image.
Owner:CPT TECH GRP
Display method and display device
InactiveUS20070013645A1Lower display luminanceVisibility of the contents of the display does not deteriorateStatic indicating devicesDisplay deviceBrightness perception
A display method includes: changing a luminance of a display device in accordance with a brightness of surroundings or an operation of a user; and changing a display form of at least one symbol to be displayed depending on the luminance of the display device.
Owner:YOKOGAWA ELECTRIC CORP
Display device and multi display device
ActiveUS10409544B2Reduce the temperatureDecrease in display luminanceTelevision system detailsAdvertisingTemperature controlDisplay device
A display device including a plurality of display units; a plurality of unit temperature sensors respectively connected to the plurality of display units and configured to respectively sense temperatures of the plurality of display units; and a control unit configured to set one of the sensed temperatures of the plurality of display units as a device representative temperature, and adjust a brightness of each of the plurality of display units in accordance with the device representative temperature.
Owner:LG ELECTRONICS INC
Display device
InactiveUS7914195B2Big spaceReduce lightPlanar/plate-like light guidesIlluminated signsLight guideDisplay device
A display device has a light guide plate formed with a display pattern by a plurality of diffusion dots having translucency in a display pattern formed region, a light shielding layer, and a light source. A plurality of the light guide plates are arranged facing each other, and the light shielding layer is sandwiched between the light guide plates. Light from the light source is selectively introduced to one of the light guide plates to display the display pattern of the light guide plate. The light shielding layer has a surface facing an observer's side formed by a low reflectivity material and a surface facing a side opposite to the observer's side formed by a high reflectivity material. A region facing the display pattern of the light guide plate positioned on the side opposite to the observer's side than the light shielding layer is cut out.
Owner:ORMON CORP
Display device, method of driving display device, and computer program
ActiveUS20100118062A1Simple to executeDrop in speedColor signal processing circuitsCathode-ray tube indicatorsGraphicsScan line
Owner:JOLED INC
Optical stack for directional display
ActiveUS11327358B2Decrease in display luminanceImprove visibilityMechanical apparatusPlanar/plate-like light guidesSpatial light modulatorDisplay device
Owner:REALD SPARK LLC
Display device
ActiveUS20070115233A1Reduce relative motionImprove scaleCathode-ray tube indicatorsNon-linear opticsDisplay deviceEngineering
The present invention provides a display device which can reduce motion picture blurring while suppressing the lowering of luminance, the lowering of contrast or the increase of electric power necessary for emission of light. In a hold-type display device which holds a display of gradations for 1 frame period, each pixel displays 1 gradation required by an external system by displaying a plurality of gradations within 1 frame period, and the plurality of gradations within 1 frame period is displayed based on voltages which are generated by gradation voltage generation circuits which differ from each other.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Plasma display device and driving method for use in plasma display device
InactiveUS20060001605A1Satisfactory imageLight emission luminance decreaseAddress electrodesSustain/scan electrodesDisplay deviceLight emission
A plasma display device which has sufficient levels of gradation for displaying a dark image, and a sufficiently low display luminance for a black level. A unit cell is composed of a large sub-cell 37 and a small sub-cell 38, and the luminance level of the small sub-cell 38 is set to 1 / 16, ⅛, ¼, or ½ from one sub-field to another, so that the gradation of a dark image is smoothly displayed. Also, since the light emission luminance is sufficiently reduced when black is displayed by producing a priming discharge in the small sub-cell 38, a satisfactory image is displayed.
Owner:PIONEER CORP
Liquid crystal display device
ActiveUS7750998B2Quality improvementReduce reproducibilityStatic indicating devicesNon-linear opticsLiquid-crystal displayEngineering
A liquid crystal display panel is provided with a light-shielding film, and a plurality of subpixels arranged in a matrix. The subpixels each include a first electrode formed on a first substrate, a second electrode formed to be located upper than the first electrode, and a color filter formed on a second substrate. The second electrode has a plurality of linear portions. The subpixels are disposed adjacently along the direction of display lines, and any two of the adjacent subpixels have the same color of color filter. The light-shielding film is formed on the second substrate not to cover the pixel boundary between the two adjacent subpixels but to cover pixel boundaries of the remaining subpixels. The second electrodes of the two adjacent subpixels are formed separately, and assuming that the two adjacent subpixels are first and second subpixels, at least the second electrode of the first subpixel is disposed also to an area of the second subpixel beyond the pixel boundary between the first and second subpixels. Such a configuration favorably increases an aperture ratio of a liquid crystal display device including a color filter.
Owner:JAPAN DISPLAY INC +1
Transmission liquid crystal display device
InactiveUS8199101B2Reduce power consumptionReduce light intensityCathode-ray tube indicatorsNon-linear opticsLiquid-crystal displayLiquid crystal
The transmission liquid crystal display device includes a liquid crystal panel and a backlight, wherein the liquid crystal panel has pixels each of which is divided into four sub pixels as red (R), green (G), blue (B), and white (W) sub pixels. Further, an emission luminance of the backlight can be controlled.
Owner:SHARP KK
Display device and multi display device
ActiveUS20180373482A1Reduce the temperatureDecrease in display luminanceTelevision system detailsAdvertisingTemperature controlDisplay device
A display device including a plurality of display units; a plurality of unit temperature sensors respectively connected to the plurality of display units and configured to respectively sense temperatures of the plurality of display units; and a control unit configured to set one of the sensed temperatures of the plurality of display units as a device representative temperature, and adjust a brightness of each of the plurality of display units in accordance with the device representative temperature.
Owner:LG ELECTRONICS INC
Display device and method for driving same
InactiveUS8797305B2Decrease in display luminanceInhibitionCathode-ray tube indicatorsSteroscopic systemsIlluminanceComputer graphics (images)
Provided is a display device for carrying out seamless display so that a sense of strangeness is not given to a viewer or the sense of strangeness is reduced. In at least one embodiment, a display device includes a display panel on which a plurality of display elements are disposed in a matrix, the display panel having a frame area which is located at an end of the display panel and in which no display element is provided; a light guide element provided on the display panel, the light guide element changing a light path of part of light emitted from the plurality of display elements so that the part of light is guided to the frame area; a photosensor provided on the display panel, the photosensor detecting environment illuminance; an image signal correcting section which (i) corrects, in accordance with the environment illuminance detected by the photosensor, an image signal to be supplied to a display element included in an area where the light guide element is provided so that a reduction in luminance or coloring of display light of the image caused by the light guide element is reduced, and (ii) outputs a corrected image signal; and a driving section which drives the display element in accordance with the corrected image signal.
Owner:SHARP KK
Display device
PendingUS20220059804A1Decrease in display luminanceIncreasing the thicknessSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceMaterials science
A display device includes a display layer disposed on a substrate and divided into an emission area from which light is emitted and a non-emission area adjacent to the emission area, a refractive layer disposed on the display layer and including a first light blocking pattern and a second light blocking pattern disposed on the first light blocking pattern, and a window disposed on the refractive layer.
Owner:SAMSUNG DISPLAY CO LTD
Image display device and method of controlling same
ActiveUS20180220115A1Inhibit coloringDecrease in display luminanceStatic indicating devicesPicture reproducers using projection devicesComputer graphics (images)Display device
A pixel displacing correction section performs a pixel displacing correction adapted to shift a position of the sub-pixel in the display target image on the image signal of the sub-pixel supplied to a plurality of light modulators to thereby compensate position shifts of the display positions of the sub-pixels constituting the images of the respective color components to be displayed on the display surface with respect to a reference position. A boundary correction section decreases the luminance represented by the image signal of the sub-pixel of another color component of the pixel, to which the sub-pixel belongs, with respect to the sub-pixel having completely moved outside the effective display range due to the pixel displacing correction.
Owner:SEIKO EPSON CORP
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