Abstract: Disclosed is a method of controlling a backlight for of a display panel. The backlight includes backlight blocks. The display panel includes display region blocks opposite to the backlight blocks in one-to-one correspondence. The method determines, for each of the backlight blocks, a luminance value demanded from each of pixels in display region blocks including a display region block opposite to the backlight block and one or more display region blocks adjacent to the opposite display region block to the backlight block based on a luminance value of the pixel and a weight determined depending on a relation of a location of the pixel and a location of the backlight block. The method determines, for each of the backlight blocks, a highest value among the demanded luminance values for the backlight block to be a luminance value for the backlight block.

Abstract: In one embodiment, a method for managing thermal dissipation in a display of an information handling system includes: emitting, by a light source of the display, a visible light within the display, the visible light associated with a heat within the display; receiving, by an absorption layer of the display, the visible light within the display, the absorption layer coupled to a display cover of the display; absorbing, by the absorption layer, a portion of the visible light comprising a light leakage from the display; absorbing, by the absorption layer, a portion of the heat within the display; and transferring, by the absorption layer, the portion of the heat into the display cover.

Abstract: The invention relates to a refractive surface for blocking short- and medium-wavelength visible-spectrum radiation that affects human physiology. The refractive surface selectively absorbs short wavelengths between 380 nm and 500 nm, between a maximum and a minimum absorption threshold, and selectively absorbs medium wavelengths between 500 nm and 590 nm, between a maximum and a minimum absorption threshold, the selective absorption of short and medium wavelengths between 380 nm and 590 nm not completely blocking the passage of visible light in this range. Other embodiments include an LED screen, a software product and an electronic device, and ophthalmic, intraocular or sunglass lenses.

Abstract: In a display device and a personal immersive system and a mobile terminal system using the same, at least a part of the display panel includes a switch element configured to electrically connect adjacent sub-pixels to each other in response to a first logic value of a control signal, and electrically separate the adjacent sub-pixels from each other in response to a second logic value of the control signal, a display driver applies the second logic value of the control signal to the switch element when receiving pixel data to be written to a focal region on the display panel to which a user's gaze is directed, and applies the first logic value of the control signal to the switch element when receiving pixel data to be written to a non-focal region on the display panel.

Abstract: A driving method of a display device includes supplying a pixel with a first light emission stop pulse having a first pulse width during a first frame that is driven at a first frequency; supplying the pixel with a second light emission stop pulse having a second pulse width during a second frame that is driven at a second frequency; and supplying the pixel with a third light emission stop pulse having a third pulse width during a third frame that is driven at the second frequency. The first frequency is different from the second frequency. The second pulse width is between the first pulse width and the third pulse width.

Abstract: Disclosed are display devices and methods of fabricating the same. The display device comprises a display panel, an optical layer on the display panel, and a backlight unit that is below the display panel and provides the display panel with light. The optical layer includes a plurality of optical fiber segments, and an air layer between the optical fiber segments. The light generated from the backlight unit is provided to the optical fiber segments through the display panel, and the light is diffused by the optical fiber segments and an air layer dispersed among the optical fiber segments.

Abstract: A backlight driving method includes steps of: (A) receiving a piece of image data; (B) generating a piece of adjustment data based on the image data; (C) generating, based on a plurality of predetermined delay values and on an original synchronization control (SC) signal that has a pulse, an internal SC signal that has a plurality of pulses, where respective time delays of the pulses of the internal SC signal with respect to the pulse of the original SC signal are respectively dependent on the predetermined delay values; and (D) generating a backlight driving output based on the adjustment data and the internal SC signal, so as to drive a backlight source of a scan-type display to emit light intermittently.

Abstract: The present disclosure provides a GPU-based third-order low-rank tensor calculation method. Operation steps of the method include: transmitting, by a CPU, third-order real value tensor input data DATA1 to a CPU; performing, by the GPU, Fourier transforms on the DATA1, to obtain third-order complex value tensor data DATA2; performing, by the GPU, matrix operations on the DATA2, to obtain third-order complex value tensor data DATA3; performing, by the GPU, inverse Fourier transforms on the DATA3, to obtain third-order real value tensor output data DATA4; and transmitting, by the GPU, the DATA4 to the CPU. In the present disclosure, in the third-order low-rank tensor calculation, a computational task with high concurrent processes is accelerated by using the CPU to improve computational efficiency. Compared with conventional CPU-based third-order low-rank tensor calculation, computational efficiency is significantly improved, and same calculation can be completed by using less time.

Abstract: According to one embodiment, a display device comprises substrates, a liquid crystal layer containing stringy polymers, a display area with first and second pixels and a light source. In a spatial frequency spectrum obtained by performing FT on a pattern of the polymers which overlap the pixels with respect to first and second frequency components, when an outline in a plane defined by the components in an area having a value of 75% or more of the maximum value is defined as an evaluation circle, and a value obtained by dividing a length of a major axis of the circle by that of a minor axis is defined as an evaluation value, the evaluation value of the first pixel is greater than that of the second pixel.

Abstract: A method for improving a halo is applied to a display panel. The display panel includes a dimming sub-panel and a display sub-panel that are superposed. The dimming sub-panel includes a plurality of first pixels, the display sub-panel includes a plurality of second pixels, and each first pixel corresponds to at least two second pixels. The method for improving the halo includes: as for the first pixel: acquiring a second brightness datum of each of the at least two second pixels corresponding to the first pixel; calculating a target brightness datum of the first pixel according to second brightness data of the at least two second pixels; determining a first gray-scale datum of the first pixel according to the target brightness datum.

Abstract: A liquid crystal display (LCD) device includes an LCD panel with a number (N) of pixel elements for displaying an image. A dimming panel includes N dimming elements. The dimming panel has a first mode to apply a uniform dimming to the N dimming elements to provide a privacy function for the LCD device. The dimming panel further has a second mode to a apply a per-element dimming to provide a local dimming function for the LCD device.

Abstract: Techniques and architecture are disclosed for array of light emitting diodes. For example, the array may comprise a plurality of stages, each stage comprising a plurality of light emitting diodes (LEDs) connected to a floating switch, respectively. The LEDs may be arranged substantially linearly on a circuit board in a plurality of clusters, where a distance between adjacent LEDs within a cluster is smaller than a distance between LEDs in adjacent clusters. Adjacent clusters contain LEDs from different stages and each stage contains LEDs in different clusters. The array may be incorporated in a lighting system. The light system may have a closed loop feedback mechanism which directly detects light emitted from a subset of the LEDs and a controller which controls the array based on the detection.

Abstract: An electronic apparatus using a liquid crystal display device, a display control method used in the liquid crystal display device, and a non-transitory recording medium for storing a display control program, sets a region having a larger area of an information display region and a background region as a transmission region and a region having a smaller area as a shielding region. A tint change of the shielding region caused by a TN type liquid crystal and a light source for backlight is reduced, and thus, it is possible to make the tint change depending on the viewing direction unremarkable.

Abstract: Throttling circuitry may throttle the backlight reconstruction via backlight reconstruction and compensation circuitry in a display pipeline when power may be limited. This throttling of the display pipeline may limit a number of cycles that may be used for performing backlight reconstruction and compensation.

Abstract: A display device includes a liquid crystal display panel, two electrodes in the liquid crystal display panel, a switching element having a source and a drain one of which is coupled to one of the two electrodes, a scan line coupled to a gate of the switching element, a signal line coupled to the other of the drain and the source, an inversion driver, and a scan circuit configured to provide, to the scan line, any of a first potential, a second potential, and a third potential lower than the second potential. The scan circuit switches a potential of the scan line from the second potential to the third potential at a timing at which the potential of the other of the two electrodes is made lower than that of the one of the two electrodes in a period in which the source and the drain are electrically disconnected.

Abstract: A signal processing method of a transparent display is disclosed. The signal processing method includes: receiving an input signal; performing a signal conversion step on the input signal to form a converted signal; after performing the signal conversion step, performing a signal identification step based on the converted signal; generating an image signal and a control signal from the input signal and a signal identification result of the signal identification step; outputting the image signal for light emission adjustment of the transparent display; and outputting the control signal for transparency adjustment of the transparent display, wherein a converted gray scale of a pixel is obtained by multiplying at least two gray scales among a red gray scale, a green gray scale, and a blue gray scale of the pixel by previously set corresponding coefficients and summing the multiplied gray scales.

Abstract: A method of driving a display panel that includes first and second display-regions includes: determining maximum luminance data among first data including first red data, first green data, and first blue data for the first display-region, calculating a threshold gray-level based on a luminance gain, a gray-level of the maximum luminance data, and a gamma value for the display panel, selecting a smaller value between the threshold gray-level and a maximum gray-level as a gain determination gray-level, calculating a compensation gain obtained by dividing the gain determination gray-level by the gray-level of the maximum luminance data, generating first compensated data by applying the compensation gain to the first data, displaying a first-image in the first display-region based on the first compensated data, and displaying a second-image in the second display-region based on second data including second red data, second green data, and second blue data for the second display-region.

Abstract: An output signal generation circuit includes a first pulse generation circuit configured to receive first information and generate a first pulse signal including the first information, the first pulse signal having a first pulse width that is a minimum pulse width of the first pulse signal, a second pulse generation circuit configured to receive second information and the first pulse signal, and generate a second pulse signal in which the second information is superimposed on the first pulse signal, the second pulse signal having a second pulse width smaller than the first pulse width, and an output circuit configured to output the second pulse signal.

Abstract: According to one embodiment, a display device includes a display panel including a plurality of pixels arranged in a non-rectangular display area, and a display controller configured to display images in the display area. An opening portion of each of pixels disposed at an edge portion of the display area is light-shielded at an area ratio according to a shape of the display area.

Abstract: A display device includes a display panel having a display region, and including a light transmission region overlapping an electronic element within an edge portion of the display region, and a panel driver configured to drive the display panel, and configured to perform an edge-dimming operation that gradually decreases a luminance of an area of the display region excluding the light transmission region from a center portion of the display region to the edge portion of the display region while not decreasing a luminance of the light transmission region.

Abstract: Provided is a display panel, a source driver that generates a gradation voltage signal based on an image data signal, a timing controller that supplies the image data signal to the source driver, and an illumination drive unit that controls an amount of light of a backlight that illuminates each of a plurality of areas formed by dividing a display screen in the display panel. The source driver or the timing controller calculates feature values of the image data signal corresponding to each of the plurality of areas of the display panel and supplies a dimming data signal representing the amount of light of the backlight according to the feature values of each area to the illumination drive unit. The illumination drive unit controls the amount of light of the backlight for each of the plurality of areas based on the dimming data signal.

Abstract: A method for controlling a display apparatus that displays an image based on an image signal supplied from an image supply apparatus that transitions to a first sleep mode in accordance with a situation in which a no-operation state lasts for a first period, the method including storing second information representing a second period, causing the display apparatus to transition to a second sleep mode in accordance with a situation in which the image signal is not supplied continuously for the second period, receiving first information representing the first period from the image supply apparatus, and setting the second information in such a way that the second period is shorter than a reference period in accordance with the first information.

Abstract: A method for driving an electro-optic display, the display having at least one display pixel coupled to a storage capacitor, the method include applying a waveform sequence to the at least one display pixel and connecting the storage capacitor to a first bias voltage, and maintaining a last frame voltage level on the display pixel after the completion of the applied waveform.

Abstract: A display device is provided that includes a display panel and a backlight panel. The backlight panel includes a plurality of self-calibrating illumination modules configured to provide backlighting for the display panel. Each self-calibrating illumination module includes at least one light source configured to emit light toward the display panel, at least one light sensor configured to detect light emitted from the at least one light source that is internally reflected within the display device, and a controller configured to control a current supplied to the at least one light source based at least on an intensity of light detected by the at least one light sensor.

Abstract: A display device includes: light-emitting elements in a backlight divided into a plurality of areas, the light-emitting elements being arranged in such a manner as to correspond to the plurality of areas; and a drive unit configured to drive the light-emitting elements in the plurality of areas by time division based on an input image every prescribed period of time, the drive unit turning on all the light-emitting elements in the plurality of areas in a partial period of the prescribed period of time and driving those light-emitting elements in at least one of the plurality of areas based on the input image in a remaining period of the prescribed period of time.

Abstract: A display device and controlling method are provided. The display device includes a display including a display panel and a backlight unit arranged on the rear surface of the display panel, a light emitting frame including a plurality of light emitting elements, the light emitting frame being arranged on at least one edge of the display, a backlight driver, and a processor configured to control the backlight driver so as to supply power to the backlight unit based on an event for turning on the display occurring, and supply power to the light emitting frame based on an event for turning off the display occurring.

Abstract: The present invention provides a double-sided display device and a manufacturing method thereof. The double-sided display includes an array substrate, an organic light-emitting functional layer, and a semi-transparent semi-reflective electrode arranged in sequence, and a liquid crystal cell disposed on a side of the semi-transparent semi-reflective electrode close to the organic light-emitting functional layer. One part of light emitted by the organic light-emitting functional layer penetrates through the semi-transparent semi-reflective electrode to display on one side of the double-sided display device, and the other part of the light is reflected toward the liquid crystal unit by the semi-transparent semi-reflective electrode to display on the other side of the double-sided display.

Abstract: An OLED display device includes display panel and a panel driver. The panel driver receives input image data at an input frame frequency and determines whether the input image data represent a still image. When the input image data do not represent the still image, the panel driver drives the display panel at a first output frame frequency substantially equal to the input frame frequency. When the input image data represent the still image, the panel driver drives the display panel at a second output frame frequency lower than the input frame frequency for a low frequency driving time and drives the display panel at a third output frame frequency higher than the second output frame frequency for a high frequency insertion time determined by one of a panel characteristic of the display panel and a representative gray level of the input image data, after the low frequency driving time.

Abstract: A light emitting module including: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole; and a light source disposed in the light source placement part. In the schematic top view: the light adjusting hole is not positioned on a first straight line connecting (i) a center of the light source and (ii) a point in the sectioning groove that is farthest from the center of the light source, and a first lateral face of the light adjusting hole has a first region, and a line normal to the first region is oblique to a second straight line connecting (i) the center of the light source and (ii) a point in the sectioning groove that is closest to the center of the light source.

Abstract: An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit and a display panel, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming mode, and the image display processing method includes: obtaining initial backlight data of each of the plurality of backlight blocks corresponding to a display image; performing a peak driving process on the initial backlight data of each of the plurality of backlight blocks by a graphics processing unit to obtain adjusted backlight data of each of the plurality of backlight blocks; and providing the adjusted backlight data to the backlight unit by the graphics processing unit so that the display panel displays the display image.

Abstract: A dual-die device, a display device and a driving method thereof are provided. The dual-die device includes: a first light emitting die for emitting light containing short-wave blue light; a second light emitting die for emitting light from which short-wave blue light is filtered out; and a control circuit. The control circuit is connected to the first light emitting die and the second light emitting die, and configured to control the first light emitting die or the second light emitting die to be turned on.

Abstract: A touch screen panel using a thin film transistor (TFT) photodetector includes a touch panel including a plurality of unit patterns for sensing light reflected by a touch by using a TFT photodetector including an active layer formed of amorphous silicon or polycrystalline silicon on an amorphous transparent material, and a controller configured to scan the plurality of unit patterns and read touch coordinates as a result of the scanning.

Abstract: A liquid crystal display device includes a backlight, a first liquid crystal panel, a second liquid crystal panel, and a driver. The second liquid crystal panel is overlapped with the first liquid crystal panel, and disposed closer to the backlight than to the first liquid crystal panel. The driver is configured to drive the backlight, the first liquid crystal panel, and the second liquid crystal panel. The second liquid crystal panel is lower in resolution than the first liquid crystal panel. The driver drives the first liquid crystal panel and the second liquid crystal panel at different refresh rates.

Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.

Abstract: Embodiments provide a computer implemented method for warping multi-field color virtual content for sequential projection. First and second color fields having different first and second colors are obtained. A first time for projection of a warped first color field is determined. A first pose corresponding to the first time is predicted. For each one color among the first colors in the first color field, (a) an input representing the one color among the first colors in the first color field is identified; (b) the input is reconfigured as a series of pulses creating a plurality of per-field inputs; and (c) each one of the series of pulses is warped based on the first pose. The warped first color field is generated based on the warped series of pulses. Pixels on a sequential display are activated based on the warped series of pulses to display the warped first color field.

Abstract: A circuit device 100 includes a light source driving value output unit 150 and a pixel value output unit 190. The light source driving value output unit 150 obtains a corrected intensity image Lled by correcting an intensity image Lint of an input image RGBin in a target display zone based on the light intensity distribution of a light source corresponding to the target display zone, and obtains a light source driving value Ldrv based on the largest corrected intensity value in the corrected intensity image Lled. The pixel value output unit 190 corrects pixel values of the input image RGBin based on the light source driving value Ldrv, and outputs the corrected pixel values as pixel values of an output image RGBout.

Abstract: A display device including a substrate, a gate driving circuit, at least one ambient light sensing element and at least one ambient light sensing signal line is provided by the present disclosure. The substrate includes a peripheral region, and the gate driving circuit, the ambient light sensing element and the ambient light sensing signal line are disposed in the peripheral region. The ambient light sensing signal line is electrically connected to the ambient light sensing element, wherein the ambient light sensing signal line at least partially overlaps the gate driving circuit in a top view direction of the substrate.

Abstract: A display device is disclosed. The display device includes a display panel and a driving chip. The display panel includes at least a first display area and a second display area arranged side by side along a first direction. In the present application, by controlling any two adjacent display areas to scan toward each other or to scan away from each other, at least one scanning lines in the first display area and at least one scanning lines in the second display area simultaneously receive driving signals input from the driving chip.

Abstract: A display device and a method for controlling the display device are disclosed. Particularly, the disclosure relates to a display device and a method for controlling the display device. In the display device having a plurality of luminance modes, a display panel is driven by means of adjusting a driving voltage so as to correspond to a changed luminance mode and adjusting a configuration value with respect to an image so as to correspond to the adjusted driving voltage.

Abstract: A safety protection apparatus of a display apparatus includes an input voltage detection unit configured to generate input voltage information representing an input voltage, a luminance information generation unit (a dimming signal generation unit) configured to generate luminance information according to the input voltage, and a first check unit configured to check whether there is an abnormality in a correspondence relationship between the input voltage information and the luminance information.

Abstract: An image display apparatus includes a display, an input unit configured to receive input data including an input image in which a first dynamic range is defined and including information relating to luminance of the input image, and at least one processor or circuit for executing tasks of converting the first dynamic range into a second dynamic range having a maximum luminance lower than that of the first dynamic range, acquiring a user set maximum luminance of the second dynamic range, acquiring a maximum display luminance when the display unit displays the maximum luminance of the second dynamic range under a display condition set for the display unit, and generating a setting screen for a user setting. The setting screen displays information indicating a relative relation among the information relating to luminance acquired from the data, the user set maximum luminance and the maximum display luminance.

Abstract: A driving method for a backlight is provided. The backlight includes a plurality of light-emitting elements, and the driving method includes steps of calculating a brightness difference value of an image to be displayed; and determining whether the brightness difference value of the image to be displayed is greater than a predetermined difference value of the image. When the brightness difference value of the image to be displayed is determined to be greater than the predetermined difference value of the image, the method includes steps of dividing the image to be displayed into a plurality of sub-regions; partitioning the backlight according to brightness difference values of the plurality of sub-regions to obtain a plurality of final light-emitting regions of the backlight; and driving the backlight to emit light according to the plurality of final light-emitting regions. The present disclosure further provides a driving circuit, a backlight and a display device.

Abstract: Disclosed is an image display apparatus including: a display; and a power supply configured to supply power to the display; wherein the power supply comprises a converter including at least one switching element and configured to output direct-current (DC) power by converting a level of input power based on a switching operation of the at least one switching element, and wherein, a first mode where the at least one switching element performs a switching operation continuously or a second mode where the at least one switching element stops the switching operation are performed according to a load at an output terminal of the converter. Accordingly, power consumption required to display an image may be reduced.

Abstract: An electrical response of a privacy glazing structure to an applied electrical sensing pulse can be measured, and one or more parameters of the privacy glazing structure can be characterized. The one or more parameters can be used to load one or more drive parameters for subsequent use in an electrical drive signal used to operate the privacy glazing structure. If an electrical drive signal is already in place, the characterized one or more parameters can be compared to one or more parameters characterized at a previous time. If the one or more characterized parameters are different from those characterized at the previous time by more than a threshold amount, one or more drive parameters of the electrical drive signal can be adjusted to a new value.

Abstract: In an organic light emitting display device which displays an image in a first mode or a second mode, the organic light emitting display device includes: a first scan driver which supplies a first scan signal having a first voltage to first scan lines; a second scan driver which supplies a second scan signal having a second voltage larger than the first voltage to second scan lines; and a pixel unit including pixels each coupled to a corresponding first scan line and a corresponding second scan line. When a first image displayed in the second mode is changed to a second image to be displayed in the second mode, the second image is displayed in the first mode during a predetermined portion of a period, in which the second image is displayed, and is displayed in the second mode during the remaining portion of the period.

Abstract: A PWM control system includes a memory and a processor. The processor obtains camera characteristics relating to a camera that is configured to capture an image displayed by a video display. The camera characteristics include a duration of a period when a shutter of the camera is open. The processor also calculates a PWM timing control for the video display. The PWM timing control specifies a PWM cycle duration that is based on the period when the shutter of the camera is open. The processor further sends a signal to the video display. The signal includes the PWM timing control and is configured to cause the video display to control a brightness of the video display according to the PWM timing control during the period when the shutter of the camera is open.

Abstract: A display device dynamically determines a duration of the illumination period for a display frame to adjust an average brightness of a display device as the framerate dynamically changes. The display device includes a backlight unit (BLU) for providing light for displaying an image, a plurality of pixels for modulating the light provided by the BLU, and a controller circuit for controlling the BLU. The controller circuit measure a duration of a previous frame and determine a duration for an illumination period of a current frame based on the measured duration of the previous frame. The control circuit then controls the BLU based on the determined duration of the illumination period for the current frame.

Abstract: Techniques, devices, and systems disclosed herein include detecting a vertical synchronization (VSYNC) signal cycle, determining a high frequency trigger pulse based on detecting an illumination component's pulse width modulation (PWM) signal, the high frequency trigger pulse corresponding to the illumination component's deactivation times, receiving a delay time period and activating a first sensor, at a first time, within the VSYNC signal cycle, the first time determined based on the high frequency trigger pulse and the delay time period. The first sensor may sense a first sensor reading and may be deactivated after being activated. A display setting may be adjusted based at least on the first sensor reading and the illumination component may be activated after the first sensor is deactivated.

Abstract: A pulse-density-modulation display and image capture system comprises a display comprising a plurality of pixels. Each pixel comprises a light emitter that controllably emits light at a constant current for a variable amount of time and a control circuit connected to the light emitter to control the light emitter to emit light in response to an input signal specifying the desired luminance of the light emitter. The control circuit converts the input signal to a non-contiguous pulse-density-modulation signal and controls the light emitter to emit light in response to the non-contiguous pulse-density-modulation signal with a temporally variable constant-current control signal. Each pixel emits light responsive to a display timing signal. The pulse-density-modulation display and image capture system also comprises a sampling camera that records the pixels and is responsive to a camera timing signal different from the display timing signal.

Abstract: A display panel comprising a light guide plate; a main light source configured to emit light from a first lateral surface of the light guide plate in a first direction; a sub-light source configured to emit light from a second lateral surface vertical to the first lateral surface of the light guide plate in a second direction perpendicular to the first direction; and a liquid crystal panel provided in a front surface of the light guide plate and configured to output image information.