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Brightness control

Subclass of:

348 - Television

348571000 - IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
348687000 Brightness control 56
20080231754System and method for dynamically establishing microdisplay driver offsets using brightness value in rear projection TV having dynamic iris control - In a rear projection microdisplay TV with dynamic iris control, sensed average picture level (APL) or other sensed brightness level is used to dynamically establish microdisplay driver offsets including white balance.09-25-2008
20080278632Image processing apparatus - A brightness converting unit obtains brightness of each of the pixels. The low-resolution brightness image generating unit divides an image based on the input image signal into a plurality of domains, and obtains an average brightness of each of the domains, on the basis of the brightness obtained by the brightness converting unit. A high-resolution brightness image generating unit obtains brightness of each of the pixels included in the image based on the input image signal by weighting the average brightness obtained for each of the domains by a distance from a central portion of the domain. On the basis of the obtained brightness, the corrected gain lookup table determines a corrected gain, and the correcting unit corrects the input image signal.11-13-2008
20090002564TECHNIQUE FOR ADJUSTING A BACKLIGHT DURING A BRIGHTNESS DISCONTINUITY - Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a sequence of video images, and calculates brightness metrics associated with the video images in the sequence of video images. Then, the system determines an intensity setting of a light source, which illuminates a display that is configured to display the sequence of video images, and scales brightness values of a given video image in the sequence of video images based on a given brightness metric associated with the given video image. Next, the system changes the intensity setting and scaling the brightness values when there is a discontinuity in the brightness metrics between two adjacent video images in the sequence of video images.01-01-2009
20090002565DYNAMIC BACKLIGHT ADAPTATION FOR BLACK BARS WITH SUBTITLES - Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a video image, that when displayed, includes a picture portion, a non-picture portion, and a subtitle which is superimposed on at least a subset of the non-picture portion, where the non-picture portion has an initial brightness value. Then, the system scales the brightness of pixels corresponding to a remainder of the non-picture portion of the video image to have a new brightness value that is greater than the initial brightness value to reduce user-perceived changes in the video image associated with backlighting of a display that displays the video image, where the remainder of the non-picture portion excludes the subset of the non-picture portion.01-01-2009
20090002566IMAGE PROCESSING APPARATUS, TV APPARATUS AND IMAGE PROCESSING METHOD - According to one embodiment, an image processing apparatus includes a reception unit for selectively receiving a signal, a signal processing unit for processing the signal that is output from the reception unit, and outputting the signal to a display unit, and control unit for controlling the signal processing unit, wherein the control unit includes a determination unit for determining whether the display unit is powered on, and the signal processing unit includes correction unit for correcting brightness of an image, which is displayed on the display unit, for a predetermined time from when the determination unit determines that the display unit is powered on.01-01-2009
20090091661Video Auto Enhancing Algorithm - A method for enhancing a video includes applying a linear histogram stretch, a gamma correction, and sigma row, column, and temporal filters to the video.04-09-2009
20090153741VIDEO FILTER AND VIDEO PROCESSOR AND PROCESSING METHOD USING THE SAME - A video processor includes a video filter and a calculation circuit. The video filter performs a low-pass filtering operation on first frame data to obtain brightness distribution data. The calculation circuit obtains difference data between the brightness distribution data and second frame data. The calculation circuit multiplies the difference data and a weighting parameter together to obtain a product, and then summates the product and the second frame data together to generate processed frame data.06-18-2009
20090167957Video signal processing device and method of processing gradation - Disclosed is a video signal processing device and a method of processing gradation capable of improving the contrast ratio and the user satisfaction of a plasma display device. The video signal processing device includes a position detecting unit for detecting positions of pixels to be displayed in a frame, a sub region detecting unit for detecting a central region including a reference point formed of at least one pixel in the frame and sub regions surrounding the central region, and a compensating unit for differently compensating brightness of pixels positioned in the sub regions and brightness of pixels positioned in the central unit.07-02-2009
20090207312VIDEO PROCESSING APPARATUS AND METHOD FOR PROCESSING VIDEO SIGNAL - A video processing apparatus includes: a video processor configured to generate a video signal; an automatic image quality adjustment unit configured to determine a first image quality adjustment set value based on the video signal; a user image quality adjustment unit configured to determine a second image quality adjustment set value based on a user's operation; an image quality processor configured to perform an image quality adjustment on the video signal based on the first and second image quality adjustment set values; and a controller configured to: control the image quality processor to perform the image quality adjustment based on the first and the second image quality adjustment set values.08-20-2009
20090219442USING NETWORK SERVER TO ESTABLISH TV SETTING - TV settings such as brightness can be established by sending from a TV signals from an ambient light sensor to a network server, with the network server establishing settings such as brightness in response for a program being played on the TV.09-03-2009
20090219443VIDEO SIGNAL PROCESSING APPARATUS, AND DIGITAL TELEVISION BROADCAST RECEIVER CONTROLLING METHOD - According to an embodiment, an apparatus has a receiving module which receives a broadcast signal and obtains a receiving signal, a demodulating and signal processing module which demodulates and processes the receiving signal, and converts the signal to a displaying signal, a program table information processing module which obtains broadcast program information, and creates information for displaying a program table, and an on-air screen adjustment module which outputs first video setting information for video setting such as brightness and tone for the displaying signal of the on-air program signal output from the modulating and signal processing module, according to an operation input. The apparatus further has an independent program table screen adjustment module which performs video setting such as brightness and tone for the program table displaying signal output from the program information processing module, according to an operation input.09-03-2009
20090256969METHOD AND APPARATUS FOR ADJUSTING QUALITY OF A DISPLAYED IMAGE - Specific image quality adjustment of an image is performed according to a setting made by a user, and contrast compensation is performed such that a brightness is kept unchanged at the center of a specific color region larger than a predetermined size, regardless of the setting of the image quality adjustment. The image quality adjustment is performed by selecting one of a plurality of filters with different frequency characteristics according to the setting of the image quality adjustment, and then performing filter processing on the image by using the selected filter. The contrast compensation is performed upon the image that has undergone the filter processing, by using a contrast compensation value related to the selected filter.10-15-2009
20090262248CONTROL APPARATUS AND METHOD FOR IMAGE DISPLAY - A detection unit which includes an image display panel, brightness averaging unit, scene changeover detection unit, and brightness suppression unit in order to provide an image display apparatus having an ABL that does not give the observer any visual sense of incompatibility without increasing the circuit scale determines the presence/absence of a scene changeover on the basis of the frame differential or second order differential of the average brightness. If a scene changeover takes place, the display brightness is changed quickly, and if no scene changeover occurs, changed slowly.10-22-2009
20090290069OPERATION MODE ADJUSTMENT DEVICE AND METHOD OF ADJUSTING AN OPERATION MODE OF AN ELECTRONIC PRODUCT - An operation mode adjustment device (11-26-2009
20090303391DISPLAY APPARATUS AND CONTROL METHOD OF THE SAME - A display apparatus includes: a display unit which displays an image; and a signal controller which determines a motion state of a current frame on the basis of a previous frame and the current frame input in sequence, generates a first sub-frame of which brightness is varied according to the motion state of the current frame, generates at least one second sub-frame to compensate the brightness of the first sub-frame on the basis of the first sub-frame and the current frame, and controls the first sub-frame and the second sub-frame to be displayed on the display unit in sequence.12-10-2009
20090322955DATA TRANSMITTING DEVICE, DATA TRANSMITTING METHOD, AUDIO-VISUAL ENVIRONMENT CONTROL DEVICE, AUDIO-VISUAL ENVIRONMENT CONTROL SYSTEM, AND AUDIO-VISUAL ENVIRONMENT CONTROL METHOD - An audio-visual environment control system is provided for realizing control of an optimum audio-visual environment illumination in response to an atmosphere of a shot scene and a scene setting intended by an image creator. An image transmitting apparatus 12-31-2009
20100053449Video Reproducing Apparatus and Method for Controlling Illumination Device - According to an aspect of the present invention, there is provided, a video reproducing apparatus including: a display device configured to display a video image; an illumination device configured to apply an illumination light to the display device; and a controller configured to perform a correction process in which at least one of a brightness and a hue chromaticity of the illumination light is adjusted based on an inactivated time period during which the illumination device has been inactivated.03-04-2010
20100053450VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD - There is provided a video display apparatus the display screen of which is configured by combining a plurality of video display units in each of which light emitting display elements are arranged in a matrix manner; in the video display apparatus, there is provided a luminance correction means that corrects the luminance of video data situated in a correction subject area including respective end regions, of a first video display unit and a second video display unit, that face each other, in accordance with the spacing between the first video display unit and the second video display unit; and a linear noise that is caused at a seam portion between the video display units is suppressed, whereby the image quality of a video to be displayed can be raised.03-04-2010
20100066913BRIGHTNESS ADJUSTER, ADJUSTMENT METHOD, AND ELECTRONIC SYSTEM UTILIZING THE SAME - A brightness adjuster generating an image output to a panel, which displays the corresponding image according to the image output. The image output includes a red output signal, a green output signal, and a blue output signal. The brightness adjuster includes a determination unit, a calculation unit, and a digital to analog converting unit. The determination unit determines a main input signal according to a red input signal, a green input signal, and a blue input signal. The calculation unit adjusts the red, the green, and the blue input signals according to the main input signal. The digital to analog converting unit transforms the adjusted red, the adjusted green, and the adjusted blue input signals into the red, the green, and the blue output signals.03-18-2010
20100134690Television receiver - The present invention is a television receiver, including a counter which measures a time period for which the television receiver continuously operates, an evaluator which determines whether the time period is more than a predetermined time period and a controller which adjusts a brightness value of a picture to more than a predetermined value when the time period is more than the predetermined time period.06-03-2010
20100214487Moving image display device and moving image display method - To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module 08-26-2010
20100245673ILLUMINATION DEVICE - An illumination device comprising a display unit (09-30-2010
20100253853IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - The third image signal is generated by multiplying the second image signal constituted by low-frequency components by K. If the fourth image signal obtained by adding the third image signal to the first image signal constituted by high-frequency components falls within a predetermined range, the third image signal is output, whereas if the fourth image signal includes a portion exceeding the range, an image signal obtained by correcting the third image signal is output. A composition signal of the output image signal and the first image signal is generated. The fifth image signal is generated by multiplying the third image signal by a correction amount γ of the third image signal. As a sub-frame of interest, either the composition signal or the fifth image signal is output.10-07-2010
20100265405DISPLAY DEVICE - Provided is a display device capable of producing an image of excellent quality with reduced flicker and little reduction in luminance, the display device including: a backlight having light sources such as LED devices arranged two-dimensionally, each of which may be individually modulated in luminance; a moving velocity detection unit VD10-21-2010
20100271552INTELLIGENT DIGITAL PHOTO FRAME - A digital photo frame (DPF) includes a power management unit connected to a power source, configured for distributing power from the power source to the DPF; a display panel configured for displaying displayable media; a sound sensor configured for detecting sound waves around the DPF and generating a sound signal according to the detected sound wave; a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and a processing unit configured for adjusting brightness of the display panel according to the sound signal and the light signal.10-28-2010
20100271553IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD FOR PERFORMING CORRECTION PROCESSING ON INPUT VIDEO - An image processing apparatus according to the present invention extracts a characteristic value of a luminance in relation to respective fields of an input video, and determines the presence of a scene change between adjacent fields. A gamma curve is then generated on the basis of the magnitude of the characteristic value. When a difference in the characteristic value between fields is larger than a predetermined value and a scene change does not exist, the gamma curve to be applied to a subsequent field is modified such that the correction characteristic of the gamma curve does not vary rapidly. The luminance is then corrected using the modified gamma curve.10-28-2010
20100302449TV Image Adjusting Method and Apparatus Thereof - A television (TV) image adjusting method includes performing a variance calculation on luminance values of a plurality of pixels adjacent to target pixels of an image frame to generate a weight index; performing a decay function calculation according to the weight index to generate a weight distribution corresponding to the plurality of pixels adjacent to the target pixels. A function value of the decay function is inversely proportional to both the weight index and a target pixel distance between the target pixels and the plurality of pixels adjacent to the target pixels. The target pixel distance is a sum of vertical distances and horizontal distances between the target pixels and the plurality of pixels adjacent of the target pixels. The method further performs a weight calculation on the luminance values of the plurality of pixels adjacent to target pixels according to the weight distribution to generate an output luminance value.12-02-2010
20100321581LUMINANCE LEVEL CONTROL DEVICE - A scene change detecting circuit (12-23-2010
20110032430DYNAMIC COMPENSATION OF DISPLAY BACKLIGHT BY ADAPTIVELY ADJUSTING A SCALING FACTOR BASED ON MOTION - A video adjustment system for processing video information is disclosed which includes a motion analyzer and an adjustment module. The motion analyzer determines a motion level metric of the video information based on at least one motion parameter. The adjustment adjusts an initial dynamic light scaling factor to provide an adjusted dynamic light scaling factor based on the motion level. The dynamic light scaling factor may be used for luminance compensation and backlight display scaling. The motion level may be based on any type of motion information, such as motion vector information or information indicating a scene change. A distortion module may perform a distortion evaluation of the video information for calculating the initial scaling factor. Alternatively, the distortion module may include a memory which stores predetermined scaling factors based on statistical distortion level characterization.02-10-2011
20110043705BRIGHTNESS ADJUSTING DEVICE, DISPLAY DEVICE, COMPUTER-READABLE RECORDING MEDIUM, AND BRIGHTNESS ADJUSTING METHOD - A brightness adjusting device of the present invention includes: a brightness setting section that accepts input of brightness change information that is an instruction to change a brightness setting value; a brightness adjusting section that performs brightness adjustment by either one of a first brightness adjusting unit and a second brightness adjusting unit having different characteristics from each other, in accordance with the instruction that is input from the brightness setting section; a determining section that determines whether or not the brightness adjustment of the brightness adjusting section switches from the first brightness adjusting unit to the second brightness adjusting unit; and an output section that outputs an alarm when the brightness adjustment of the brightness adjusting section is determined to switch from the first brightness adjusting unit to the second brightness adjusting unit based on a determination result of the determining section.02-24-2011
20110063518IMAGE DISPLAY SYSTEM AND IMAGE DISPLAY METHOD - A projector including: an adjustment image generation section which generates an adjustment image which allows adjustments of brightness and color difference; an input section to which operation information is input; an adjustment information generation section which generates brightness adjustment information indicating an adjustment value of the brightness and color difference adjustment information indicating an adjustment value of the color difference based on the operation information; and an adjustment section which adjusts the brightness and color of an image based on the brightness adjustment information and the color difference adjustment information.03-17-2011
20110211127DISPLAY APPARATUS AND DISPLAY METHOD - According to one embodiment, a display method includes generating data includes pixels, each pixel of the data having brightness values corresponding to reference colors, selecting a first correction data, which corresponds to a first luminance level dimmer than a second luminance level and comprises correction information items corresponding to the brightness values of the data, and a second correction data which corresponds to the second luminance level and comprises correction information items corresponding to the brightness values, and correcting the brightness values of each pixel of the data based on the selected correction data, wherein a second brightness value obtained by correcting a first brightness value based on the first correction data is higher than a third brightness value obtained by correcting the first brightness value based on the second correction data, and the first brightness value is equal to neither the minimum nor the maximum brightness value.09-01-2011
20110234911DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes a display that includes display elements arranged in lines of a matrix. Each display element is configured to emit light based on a video signal that is received by the display. A proportion determiner is configured to determine, for each line, a proportion of a single frame period during which each display element of a corresponding line is not to emit the light. A signal converter is configured to convert an amplitude of the video signal for each line according to the proportion determined for each line. A signal output is configured to output the video signal converted by the signal converter to the display as a converted video signal. A scanner is configured to output a scanning signal to the display for each line for inputting the converted video signal to the display elements of each line based on the proportion determined for each line.09-29-2011
20110261263LED BACKLIGHT APPARATUS AND METHOD - Backlit video display systems where the backlights (for example, LED backlights) are controlled based at least in part on the content of the video signal of the video that is being displayed by the backlit video display system. The system can provide specific control of the three primary colors (for example, red, green and blue LEDs). The system can content-based control in a spatial mode. The system a smart backlighting system with content-based controls at the following levels: (i) spectral, (ii) spatial, and (iii) temporal control. Also, some embodiments may provide a novel way of providing a backlit video display system with night vision (NV) capability through a unique four LED chip architecture.10-27-2011
20110279732IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus for controlling brightness of an image to be output to a display unit, includes: a separation unit which separates an image of each frame into a plurality of areas; an entropy calculation unit which calculates, for each area, entropy of information on at least one of distribution of luminosity, character quantity and motion quantity; and a brightness control unit which controls brightness in each area so that a reduction rate of brightness in an area of which entropy is small is greater than a reduction rate of brightness in an area of which entropy is large.11-17-2011
20110285913ENHANCED HISTOGRAM EQUALIZATION - A video processor includes a video stream translation module configured to generate a translated luminance value for a pixel of a current frame of a video data stream. The translated luminance value is based on a first luminance value for the pixel and a first translation matrix for the current frame of the video data stream. The video processor includes a filter configured to generate an output luminance value for the pixel based on the translated luminance value and a target translated luminance value for the pixel. The output luminance value may be based on a weighted average of the translated luminance value and the target translated luminance value using a first weighting factor. The video processor may include a first weighting factor generator configured to generate the first weighting factor based on luminance values of the current frame of the video stream.11-24-2011
20110317075Method and system for adapting film judder correction - A TV or monitor with a sensor sensing radiation or light from the surroundings, where a controlling unit, on the basis of the sensed radiation or parameters of a video signal, frame rate converts an original video signal to an up converted video signal by determining additional images for the video signal, the additional images being determined on the basis of the determined radiation/light or parameter of the video signal in order to relatively reduce frame rate conversion generated artefacts when the radiation or light intensity is higher.12-29-2011
20120086862VIDEO DISPLAY DEVICE, VIDEO DISPLAY METHOD, VIDEO DISPLAY SCREEN AND LIQUID CRYSTAL DISPLAY DEVICE - A video display system of the present invention includes (i) a projector that generates a display image in accordance with a digital video signal and (ii) a screen on which an image generated by the projector is projected and displayed. Provided behind the screen is an infrared-emitting unit that emits infrared light through a video display surface during a period of time in which a picture is being displayed on the screen. This allows invisible light to be emitted through a video display section such as a screen together with a displayed image, thereby degrading the image quality of a re-shot picture and rendering use of re-shot image content impossible.04-12-2012
20120127371GRADATION ADJUSTMENT DEVICE, IMAGE DISPLAYING DEVICE, TELEVISION RECEIVER, PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM HAVING PROGRAM RECORDED THEREIN - A video processing section comprises a gradation adjustment device for correcting a gradation of an image to be displayed on a television receiver. The video processing section includes, a gradation correcting section, an intermediate brightness region determining section, a brightness difference determining section, a brightness difference threshold determining section, and a gradation adjusting section. The video processing section corrects brightnesses of adjacent pixels, so as to reduce brightness difference between adjacent pixels. The invention provides a gradation adjustment device for realizing an image displaying device that keeps an excellent quality of an original image.05-24-2012
20120176547IMAGE PROCESSING METHOD - The invention relates to a method for processing a video image for a display device. In order to reduce the visibility of transition regions in the processed image, the method comprises a step of application of a third video pattern to at least one part of the image, the third video pattern resulting from the spatial interleaving of a first video pattern and at least one second video pattern according to a determined model.07-12-2012
20120320274VIDEO SIGNAL PROCESSING CIRCUIT, VIDEO SIGNAL PROCESSING METHOD, DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A video signal processing circuit includes: a control unit that calculates a luminance integrated value on the basis of an input video signal and performs luminance control for the video signal on the basis of the calculated luminance integrated value, wherein the control unit calculates the luminance integrated value at a period shorter than time equivalent to one frame.12-20-2012
20120327303BACKLIT VIDEO DISPLAY WITH DYNAMIC LUMINANCE SCALING - A method of displaying an image defined by an input video signal on a backlit video device accommodates changes of luminance between successive frames of the input video signal. Changes of luminance distribution, which is a function of a distribution of pixel luminance values in the frames, between the successive frames are detected. Target adjustments to luminance of the backlight and to light transmission of the image panel for a current frame of the input video signal are defined to compensate luminance of the displayed image for the adjustment to luminance of the backlight. Actual adjustments to luminance of the backlight and to light transmission of the image panel for the current frame are functions of the target adjustments for the current frame and of the actual adjustments for a previous frame in proportions, which are a function of the changes detected of luminance distribution between successive frames.12-27-2012
20130120660VIDEO-DISPLAY CONTROL DEVICE - In a video display control device, a control data generating section allocates a part of a dynamic range of a high gradation region of a video signal to a low gradation region, and a backlight controlling section controls a light emission luminance of a backlight so as to cancel an increase or decrease of a mean luminance of a video displayed on a screen in accordance with an increase or decrease of the mean luminance of a video signal after correction with respect to a mean luminance of the video signal.05-16-2013
20130286289IMAGE PROCESSING APPARATUS, IMAGE DISPLAY APPARATUS, AND IMAGE PROCESSING METHOD - According to one embodiment, An image processing method includes: estimating a composition of image data, for each piece of image data received in a temporal order to calculate a reliability indicating likelihood of the composition estimated; determining whether the composition estimated is different from a composition previously used which is a composition to be used for image data previously received and whether the reliability is equal to or higher than a predetermined first threshold, and updating a composition to be used to the estimated composition when the estimated composition is different from the composition previously used and compositions having the reliability equal to or higher than the first threshold are received successively equal to or more than a predetermined first number of times; and calculating an intensity at which a sharpening process of the image data is performed based on the composition to be used10-31-2013
20140002747ENTERTAINMENT SYSTEM INCLUDING SELECTABLE IR RECEIVE AND TRANSMIT CODES AND DAY/NIGHT PICTURE MODES01-02-2014
20140300819VIDEO DISPLAY DEVICE AND TELEVISION RECEIVING DEVICE - The purpose of the present invention is to increase a feeling of brightness and express a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying said part. A light emission detection portion (10-09-2014
20140307170DISPLAY DEVICE, BRIGHTNESS ADJUSTMENT DEVICE, METHOD OF ADJUSTING BRIGHTNESS, AND PROGRAM - Provided is a display device including a setting condition acquisition unit for obtaining various conditions for adjusting a gain of a video-signal, a current-brightness table calculation unit that calculates a table representing a relationship between an average brightness and a gain of a video-signal, and that calculates the table capable of setting a peak-brightness and power consumption of the video-signal independently, based on the various conditions acquired by the setting condition acquisition unit, a video-average brightness conversion block that calculates average- brightness of the video-signal input for each frame, a current-brightness control table that calculates a gain of the video-signal from the table based on the average-brightness calculated above, a video gain block that adjusts the video-signal using the gain calculated above, and a display panel that includes a plurality of pixels that emit light in response to a video-signal and displays a video based on the video-signal adjusted above.10-16-2014
20150042883Transparent FIPEL pixel panels displaying a normal image from the front surface and a reverse image from the back surface - A television formed of a FIPEL panel that creates light in both front and rear directions. An emissive layer is used, where the layer emits colored pixels of light. The pixels are emitted in both front direction, to be viewed by a tv viewer, and in the rear direction as a backlight. The emitted light can also illuminate the bezel of the television.02-12-2015
20150042884VIDEO DISPLAY CONTROL DEVICE - A video display control device includes a video signal processing section that corrects a video signal and outputs a video signal after correction to a display, and a backlight controlling section that controls a light emission amount of a backlight. A control data generating section allocates to a low gradation region of the video signal a high gradation region dynamic range of the video signal in which a video signal corresponding to a black band region is excluded. The backlight controlling section controls a light emission luminance of the backlight so as to cancel out an increase or a decrease in the mean luminance of the video displayed on a screen.02-12-2015
20150077637DISPLAY DEVICE, DISPLAY DEVICE CONTROL METHOD, TELEVISION RECEIVER, CONTROL PROGRAM, AND RECORDING MEDIUM - The display device (03-19-2015
20150138441SYSTEM AND METHOD FOR SPATIO TEMPORAL VIDEO IMAGE ENHANCEMENT - A method for improving quality of low light video images including: receiving a current video frame; temporally enhancing it by applying a first weight matrix including higher weight factors for stationary regions and lower weight factors for moving regions to the received frame and a reference frame to generate an enhanced temporal video frame; spatially enhancing the enhanced temporal video frame by applying a second weight matrix including higher weight factors for stationary regions and lower weight factors for moving regions to generate an enhanced spatial video frame; and motion enhancing the enhanced temporal video frame by extracting matched rigid moving objects in a previous or future frame and processing each of the extracted matched rigid moving objects with a corresponding rigid object in the enhanced temporal or spatial or raw current video frame.05-21-2015
20160050733POWER SUPPLY, POWER CONTROL METHOD THEREOF, AND DISPLAY APPARATUS HAVING THE SAME - A power supply and method of controlling power supplied to a light source are disclosed. The power supply includes a dimming-control voltage generator configured to generate a dimming-control voltage based on first and second adjustment values; a dimming controller configured to output a dimming control signal for controlling analog dimming and pulse width modulation (PWM) dimming of a light source based on the dimming-control voltage; and a driver configured to control the analog dimming and the PWM dimming of the light source based on the dimming control signal.02-18-2016
20160100122VIDEO DISPLAY DEVICE - A more favorably visibility-improved video is obtained.04-07-2016
20160205338CONVERTING METHOD AND CONVERTING APPARATUS07-14-2016
20170237934DISPLAY SYSTEM, DISPLAY METHOD, AND DISPLAY APPARATUS08-17-2017
348689000 With DC clamping 1
20090128706VIDEO SIGNAL OUTPUT CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT INCLUDING THE SAME - A video output circuit that is operated at a low power supply voltage and capable of achieving reduced power consumption with a simple circuit configuration and a semiconductor integrated circuit incorporating the same are provided. The video signal output circuit includes a video signal input terminal 05-21-2009

Patent applications in class Brightness control

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