Abstract: A gain amplifier of a sensing circuit for sensing degradation of an OLED display panel, the gain amplifier comprising: an operation amplifier; and a plurality of gain amplifier cells sequentially coupled to the operation amplifier. Each of the gain amplifier cells comprises a plurality of capacitors each placed between two internal nodes of the gain amplifier cell, excluding a ground node, such that a voltage gain of the gain amplifier and a DC offset of the gain amplifier are determined according to capacitances of the capacitors without considering parasitic capacitance.

Abstract: A display device includes a display panel, a plurality of sensors, a signal control unit, and a backlight unit. A plurality of dimming regions is defined in the display panel. The signal control unit determines a plurality of representative luminance values corresponding to the plurality of dimming regions based on image data signals received from an external device and illuminance values of an external light measured by the plurality of sensors. The backlight unit provides lights having the representative luminance values to the display panel.

Abstract: The embodiments of the disclosure discloses a method of driving a dynamic backlight and a display device. In this method, a vertical synchronization signal corresponding to an input image signal is received; a first level signal and a second level signal are outputted alternately in response to a change edge of the vertical synchronization signal, where the total duration of the first level signal and the second level signal is 1/m of the duration between the change edge and a first change edge before the change edge, wherein the change edge and the first change edge before the change edge are change edges of a same changing direction; m is a positive integer; and the drive chip receives the first level signal and the second level signal and generates a PWM signal according to the first level signal and the second level signal.

Abstract: A display panel driving device includes a control signal generator which outputs a driving control signal, a driving unit which receives the driving control signal to output a panel driving signal, a protection circuit unit which receives a feedback current from the control signal generator and compares the feedback current with a reference current to perform a protection operation based on a result of comparison of the feedback current with the reference current, a temperature sensor which senses an ambient temperature, a controller which outputs a selection signal variable depending on the sensed ambient temperature, and a protection operation setting unit which sets a condition of the protection operation in response to the selection signal.

Abstract: A flexible liquid crystal display (LCD) module for double-side display includes a flexible substrate, a first blue light emitting diode (LED) set and a second blue LED set arranged on the flexible substrate. A first yellow phosphor layer and a second yellow phosphor layer are arranged on the first blue LED set and the second blue LED set, respectively. A first flexible LCD panel and a second flexible LCD panel are combined with the flexible substrate through a first fixing material and a second fixing material, respectively. The LCD module is fabricated by flexible material. The first and second flexible LCD panels display identical or different images simultaneously.

Abstract: An electronic device and a manufacturing method for the same are provided. The electronic device includes a light-permeable display screen and an optical sensor. The light-permeable display screen has a first surface and a second surface facing away from the first surface. The second surface includes a display area and a black matrix area surrounding the display area. The black matrix area includes a first window region. The optical sensor is disposed opposite to the second surface of the light-permeable display screen, and includes an emitter and a receiver. The emitter is configured to emit an infrared light through the first window region and the receiver is configured to receive the infrared light through the light-permeable display screen.

Abstract: A display driver includes gamma curve control circuitry and a converter controller. The gamma curve control circuitry is configured to generate a first gamma curve for a first display brightness value (DBV), and a second gamma curve for a second DBV lower than the first DBV. The converter controller is configured to control a digital-analog converter (DAC) configured to perform digital-analog conversion of an input image data. Further, the converter controller is configured to adjust an analog signal voltage amplitude of the DAC based on a range of an output voltage associated with the second gamma curve.

Abstract: An optical structure and a method for controlling the same, and a display device are provided. The optical structure includes a light adjustment component, optical sensing components and a controller. The light adjustment component is divided into at least two sub-regions. The optical sensing components acquire an intensity of ambient light irradiating onto each sub-region of the light adjustment component. The controller controls a light transmittance of the corresponding sub-region based on the intensity of the ambient light irradiating onto the corresponding sub-region.

Abstract: A computing device is configured to selectively adjust a brightness of a video based on a user-specific response to light. A user-specific light response parameter is determined. For each frame of a plurality of frames included in the video, (1) a brightness characterization for the frame is determined, (2) one or more additional brightness characterizations for one or more additional frames of the plurality of frames is determined, (3) a filter for the frame is generated based on the brightness characterization, the one or more additional brightness characterizations, and the user-specific light response parameter, (4) the filter is applied to the frame to generate a filtered frame, and (5) the filtered frame is output by the computing device. The filter is configured such that if a high brightness condition is present in the frame, then the high brightness condition is mitigated or removed from the filtered frame.

Abstract: The present disclosure provides a display correction method and a display correction system. The method is used by the display correction system to correct display performance of a display, wherein the display correction system includes an automatic adjustment apparatus and a light detection apparatus.

Abstract: A display device includes a solid-state light source driven by a PWM signal, a light modulation device that modulates light emitted by the solid-state light source in response to an image signal, and a signal output unit that determines a duty ratio and a current value of the PWM signal in response to brightness of an image represented by the image signal. The signal output unit outputs a PWM signal having a predetermined first current value to the solid-state light source if the duty ratio is equal to or more than a predetermined first threshold value and outputs a PWM signal having a current value less than the first current value to the solid-state light source if the duty ratio is less than the first threshold value.

Abstract: A method and apparatus for overdriving pixel elements to a desired voltage. A display device comprises a pixel array and overdrive circuitry to determine a current pixel value for a first pixel element of the pixel array and a target pixel value for the first pixel element. The overdrive circuitry is further configured to determine a first voltage to be applied to the first pixel element to cause the first pixel element to transition from the current pixel value to the target pixel value by a first instance of time. The first voltage is determined based at least in part on a position of the first pixel element in the pixel array. The display device further comprises a data driver to apply the first voltage to the first pixel element before the first instance of time and a backlight to illuminate the pixel array at the first instance of time.

Abstract: A method and apparatus for updating pixel elements of a display device. The display device comprises a pixel array including a plurality of pixel elements and one or more light sources to illuminate the pixel array at a first instance of time. A data driver is configured to receive a frame of display data corresponding to an image to be displayed on the pixel array at a first instance of time. The data driver scans each row of the pixel array, during a pixel adjustment period prior to the first instance of time, to drive a plurality of first voltages onto the plurality of pixel elements, respectively, based on the received frame. The data driver further rescans a subset of rows of the pixel array, during the pixel adjustment period, to drive second voltages onto respective pixel elements in the subset of rows based on the received frame.

Abstract: Certain aspects of the present disclosure provide techniques for performing face recognition in low light conditions using an electronic device. One aspect provides a method including determining if a brightness level within a viewing area of the electronic device satisfies a threshold. The method includes increasing a luminance output of the electronic device from a first luminance level to a second luminance level when the brightness level does not satisfy the threshold. The method includes capturing an image at the second luminance level when the brightness level does not satisfy the threshold. The method includes capturing the image at the first luminance level when the brightness level satisfies the threshold. The method includes detecting a face in the image. The method includes determining if the face corresponds to an authorized user. The method includes unlocking the electronic device when the face corresponds to an authorized user.

Abstract: A device is described. In an example, a device comprises a capacitance sensor layer and a conductive grounded layer. The conductive grounded layer is placed under the capacitance sensor layer in a direction opposite to a targeted sensing direction of the device. The distance between the capacitance sensor layer and the conductive grounded layer is configured to remain within a threshold over a range of deformation. In other examples, a method for manufacturing a device and a module are discussed along with the features of the device.

Abstract: A liquid crystal display device includes a liquid crystal panel including a plurality of liquid crystal pixels, wherein the liquid crystal panel is configured to display a same picture in two adjacent frames; a driving module disposed on the non-display area, wherein the driving module is used to respectively provide each liquid crystal pixel with a same polarity pixel voltage of different levels in the two adjacent frames so as to deflect liquid crystal molecules of each liquid crystal pixel, and in each frame of the two adjacent frames, the level of the pixel voltage of each liquid crystal pixel is different from the level of the pixel voltage of the adjacent liquid crystal pixels in front, back, left or right.

Abstract: A laser display system includes a red light semiconductor laser module (1), a green light semiconductor laser module (2), a blue light semiconductor laser module (3), a decoherence device (7, 8, 9), light valves (12, 13, 14), collimating and shaping devices (4, 5, 6), a heat dissipating modules (16-1, 16-2, 16-3), a temperature control module (17) and a semiconductor laser control module (18). The wavelength range output by the red light semiconductor laser module (1) is from 635 nm to 670 nm; the wavelength range output by the green light semiconductor laser module (2) is from 515 nm to 530 nm; the wavelength range output by the blue light semiconductor laser module (3) is from 440 nm to 460 nm.

Abstract: Embodiments are directed to an electronic device having a hidden or concealable input region. In one aspect, an embodiment includes an enclosure having a wall that defines an input region having an array of microperforations. A light source may be positioned within a volume defined by the enclosure and configured to propagate light through the array of microperforations. A sensing element may be coupled with the wall and configured to detect input received within the input region. The array of microperforations are configured to be visually imperceptible when not illuminated by the light source. When illuminated by the light source, the array of microperforations may display a symbol.

Abstract: Aspects of the subject technology relate to electronic devices with displays and ambient light sensors. An electronic device modifies the color of images to be displayed based on measured ambient light color. The modification is performed in a perceptually uniform color space and includes a determination of a bleaching effect of reflected ambient light, and a determination of a color correction factor to be applied within the perceptually uniform color space, based on the determined bleaching effect. The modification may also include an application of a strength factor that mitigates out-of-gamut colors in color compensated images.

Abstract: The present disclosure discloses a backlight self-adaptive adjustment method, including: acquiring a frame of picture every preset time interval when in video mode; judging whether the first picture satisfies a preset backlight self-adaptive adjustment condition, according to the brightness difference value between a first picture currently acquired and a second picture acquired within the current preset time period, and the amount of white pixels of the first picture; acquiring the brightness value of a pixel in a third picture captured from current ambient by a camera, when the first picture satisfies the preset backlight self-adaptive adjustment condition; setting the backlight value of the display video window area of the display screen based on the brightness value of the pixel in the third picture. The disclosure also discloses a backlight self-adaptive adjustment device.

Abstract: An electronic device includes a backlight unit and a liquid crystal layer disposed proximate to the backlight unit. The backlight unit is configured to provide illumination across a viewable display area of the electronic device. The viewable display area includes a plurality of zones. The liquid crystal layer is configured to selectively filter the illumination provided by the backlight unit. A processor is coupled to the backlight unit and to the liquid crystal layer. The processor is configured to determine, based on data indicative of content to be displayed, a respective backlight brightness level of each zone of the plurality of zones and to generate liquid crystal control signaling for the liquid crystal layer. The processor is further configured to adjust the respective backlight brightness levels and/or the liquid crystal control signaling, to compensate for distortions arising from defects in the backlight unit and/or the liquid crystal layer.

Abstract: Provided is a terminal display method, said method comprising: displaying a picture corresponding to left half-frame data of a current data frame, and starting a first timer; when the count time of said first timer ends, closing the screen brightness; rendering a picture corresponding to the right half-frame data of said current data frame starting a second timer; when the count time of said second timer ends, opening the screen brightness, displaying the picture corresponding to the right half-frame data, and simultaneously starting the first timer; and when the count time of the first timer ends, closing the screen brightness. The present disclosure also provides a terminal display apparatus.

Abstract: A display apparatus includes a display panel, a gate driver and a data driver. The display panel displays an image and includes first sub-pixels which display a first color, second sub-pixels which display a second color different from the first color, first gate lines to which only the first sub-pixels are connected, second gate lines to which only the second sub-pixels are connected, and data lines. The gate sequentially applies first gate signals only to the first gate lines during a first duration of a first frame, and sequentially applies second gate signals only to the second gate lines during a second duration of the first frame, where the second duration is subsequent to the first duration. The data driver outputs data voltages to the data lines based on input image data in synchronization with a driving sequence of the first and second gate lines.

Abstract: According to one embodiment, a display device including a plurality of light sources of different luminous colors, a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer interposed between the first and second substrates, to which light from the light sources enters, a display area on which an image is displayed, and a drive circuit configured to control quantity of light from each of the light sources on the basis of an analyzation result of an image signal used to display the image.

Abstract: Provided are an image processing apparatus and method, which use a maximum display luminance value of a mastering display and a maximum display luminance value of a target display according to luminance characteristics of a current scene of an encoded image.

Abstract: A display device including a display panel, a backlight unit, a display driving circuit, and a backlight driving circuit is provided. The display panel includes multiple display zones. The backlight unit includes multiple light sources corresponding to the multiple display zones respectively. The display driving circuit receives an image signal and calculates a local dimming value for each display zone according to the image signal. The image signal includes multiple image frames. The display driving circuit drives the display panel to display the multiple image frames sequentially in multiple frame intervals each including a vertical blanking interval and a data scan interval. The backlight driving circuit provides a backlight pulse for each light source and adjusts the width and/or the intensity of each backlight pulse according to the local dimming value for each display zone. The backlight driving circuit provides the backlight pulse in the vertical blanking interval.

Abstract: Disclosed are methods, apparatus, and storage media for dimming a display screen. The method includes: acquiring a parameter value of the display screen to be adjusted, wherein the parameter value has a correspondence with a brightness of the display screen; and comparing the parameter value with a set threshold to obtain a comparison result, and determining a corresponding dimming mode according to the comparison result, and performing dimming on the display screen via the corresponding dimming mode. The above method for dimming a display screen that determines a dimming mode according to a comparison result may overcome the deficiency caused by determining only one dimming mode, and may further mitigate impacts on the display quality while dimming.

Abstract: Disclosed is an electronic device that includes a layer, a light source that irradiates light to the layer from a lower side of the layer, a regulator that supplies a voltage to the light source, and a processor electrically connected with the regulator. The processor determines an output voltage of the regulator based on information about the layer.

Abstract: A display apparatus includes: a substrate; a display unit disposed on the substrate; a barrier unit disposed between the substrate and the display unit; and a buffer unit disposed between the barrier unit and the display unit, wherein a sum of a thickness of the barrier unit and a thickness of the buffer unit is in the range from 0.9 ?m to 3 ?m.

Abstract: A computing device runs multiple activities concurrently and provides at least two modes for interacting with the activities. The user may toggle between the modes as desired. In a full-screen mode, one activity occupies substantially an entire display screen. In a windowed mode, the activity is visible within a window, and a portion of at least one other window is also visible. In the windowed mode, the user can cause windows to move, thereby changing focus from one activity to another. For example, the window having focus can be moved off the screen, to be replaced by a new window that is then given focus. The windows are ordered in a sequence and move in concert with one another; pushing one window off one edge of the screen causes a new window to appear at the opposite edge. A persistent positional relationship can be established among windows.

Abstract: A mobile terminal includes a terminal body having an inner surface, an outer surface and side surfaces, and configured to be opened into an open state where the inner surface is exposed to an upper side, and closed into a closed state where the outer surface and the side surface are exposed to an upper side while the inner surface is covered; a touch screen having a first region and a second region disposed on the inner surface, a third region disposed on the outer surface, and a fourth region disposed on the side surface between the first region and the third region, in the closed state; and a controller configured to display an execution screen of at least one application to at least one of the first and second regions in the open state.

Abstract: An active optical machine-readable tag (i.e. optical tag) is provided that is addressable and readable within a line-of-sight of a reader device, such as a mobile device equipped with a camera, at substantially large distances. A method and a system are provided for an active optical tag and a camera-based reader thereof that facilitate asynchronous communication at data rates that are sufficiently high for practical uses, while reducing the flicker associated with the low-frequency optical carrier to a level hardly noticeable by people. The optical tag may be formed as an array of light emitting elements, arranged in a single dimension (linear) or two dimension (planar) arrangement. The array may be embodied as part of a large display unit.

Abstract: The present disclosure relates to an electronic device for acquiring biometric information and an operating method thereof.

Abstract: A display device includes a display, a driver, a memory, and a controller. The display includes a display panel and a backlight unit with a plurality of light-emitting elements to display an image. The driver is electrically connected to the display to transmit a backlight control signal to the backlight unit. The memory stores a plurality of adjustment instructions, and each adjustment instruction includes a drive frequency and a control parameter. The controller is electrically connected to the display, the driver, and the memory. The controller is configured to determine a drive frequency and a control parameter corresponding to the drive frequency in the memory according to a frequency adjustment signal, and then adjust the backlight control signal according to the control parameter, to change a duty cycle of the backlight control signal, so that a refresh rate of the backlight unit meets a requirement of a user.

Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.

Abstract: Provided are a multi zone backlight controlling method and a device thereof. The method includes: obtaining original grayscale values of pixels of the image; obtain a backlight control coefficient correction factor according to the original grayscale value; obtaining a first backlight control coefficient and a second backlight control coefficient based on the backlight control coefficient correction factor and the original grayscale values, and adjusting backlight brightness according to the first backlight control coefficient and the second backlight control coefficient, thereby reducing difference between the display image and the real image.

Abstract: A display apparatus and a method for controlling the same are disclosed. The display apparatus according to the embodiment includes an input device including a button structure and a sensor assembly configured to output different sensor values according to a movement of the button structure. According to an embodiment, the display apparatus includes a controller configured to generate a control signal based on sensor value information generated by the sensor assembly, and a display configured to provide a display based on the control signal. An embodiment of the disclosure provides a single multi-channel input device in the display in which a display screen correction function and a display screen operation function may be performed together using a color sensor applied to the input device. According to the disclosure, a simplified button structure of the display apparatus may be provided.

Abstract: An object is to provide a semiconductor device with low power consumption. The semiconductor device includes a controller, a register, and an image processing portion. The image processing portion has a function of taking image data from a frame memory and a parameter from the register and processing the image data by using the parameter. The frame memory has a function of retaining the image data while power supply is stopped. The register has a function of retaining the parameter while power supply is stopped. The controller controls power supply to the register, the frame memory, and the image processing portion. The register includes first and second scan chain registers. The first scan chain register stores a parameter related to a first display region. The second scan chain register stores a parameter related to a second display region. A parameter is changed by loading of data of the first or second scan chain register.

Abstract: A liquid crystal display (LCD) unit and associated method for compensating for the effects of low temperatures. The LCD unit includes a heating panel disposed adjacent to the LCD panel. A temperature sensor measures the temperature of the LCD panel. A controller compares the measured temperature to a threshold temperature and one or more set points and operates the heating panel accordingly. Further, the controller is configured to control one or more contrast parameters in response to the comparison of the measured temperature to the one or more set points.

Abstract: A display and a color correction method are disclosed. The display includes a panel, a backlight module, a first sensing unit, a second sensing unit and a processing module. The first sensing unit senses a real-time ambient light information of an environment that the display is located in. The processing module estimates a target display lightness according to the real-time ambient light information and adjusts a backlight intensity to an adjusted backlight intensity to make a backlight intensity of the panel substantially the same with the target display lightness. The second sensing unit senses an adjusted backlight information of the backlight module. The processing module estimates a color gain compensation value for the panel according to the adjusted backlight information and the real-time ambient light information and compensates the colors displayed on the panel when the panel displays an image according to the color gain compensation value.

Abstract: Disclosed are a method and device for switching between operation modes. The method includes: reading a current operation mode of a surveillance device, and recording an exposure parameter of the current operation mode; and when a switch between operation modes is to be performed, setting a target exposure value of a target operation mode to which the current operation mode is to be switched to, and calculating an exposure parameter of the target operation mode in combination with the exposure parameter of the current operation mode. The device includes: a recording module; a detection module; and a switching module. The method and device of the disclosure directly estimate the exposure parameter of the target operation mode according to the exposure parameter of the current operation mode without gradually adjusting the exposure parameter by metering and exposure calculation, thereby significantly increasing a switching speed.

Abstract: A system and method for controlling amount of light emitting from an illuminating screen including: a frame defining a space, a screen mounted onto a front side of said frame, a back plate mounted onto a back side of the frame, opposite the front side, at least one light source and a concealing element. The at least one light source is positioned within the space defined by the frame and is configured to illuminate the screen. The concealing element is located inside the space defined by the frame and is configured to block light from illuminating the screen. The amount of light emitting through the screen is controlled by a ratio between the area of the concealing element positioned in a section located between the at least one light source and the screen, and the total area of the section.

Abstract: Disclosed is a backlight driving control method and system applied to a display terminal having an LCD. The display terminal includes a MCU and a backlight, the backlight includes multiple light bars composed of LED lights and multiple driving ICs, each driving IC controls one or more light bars. The method includes: in response to reception of respective electrical signals of the LED lights, demodulating, by the MCU, the electrical signals to obtain respective brightness values of the LED lights; comparing the respective brightness values of the LED lights in each driving IC to obtain a maximum brightness value of the LED lights in the driving IC; and dividing the maximum brightness values of the LED lights in the driving ICs into multiple brightness intervals, determining a current value corresponding to each brightness interval, and controlling the brightness of the LED lights in the driving ICs according to the current values.

Abstract: A liquid crystal display device according to an embodiment includes a liquid crystal panel including a plurality of display regions arranged in a first axis direction; a backlight unit below the liquid crystal panel; and a viewing angle adjustment unit between the liquid crystal panel and the backlight unit, wherein the viewing angle adjustment unit includes a viewing angle adjustment sheet that includes a plurality of division regions corresponding to the plurality of display regions, respectively, and the plurality of division regions are individually adjusted in scattering rate according to ON and OFF operation modes.

Abstract: Example embodiments relate to a node and a method of controlling devices connected to the node. In example embodiments the devices may be, but are not required to be, lights.

Abstract: Disclosed herein are devices, methods and systems for implementing a dual image head-up display incorporating a single picture generating unit (PGU). The aspects disclosed herein obviate a blind wall construction and achieve the results created by systems employing two distinct PGUs. The aspects disclosed herein are also directed to an optimized backlighting system and construction for employment with the disclosed HUD systems.

Abstract: A display apparatus includes a diffuse reflection image acquiring unit, a specular reflection image acquiring unit, a difference image acquiring unit, a reflectance distribution function calculating unit, and a display. The diffuse reflection image acquiring unit acquires a diffuse reflection image of an object surface. The specular reflection image acquiring unit acquires a specular reflection image of the object surface. The difference image acquiring unit acquires a difference image between the diffuse reflection image and the specular reflection image. The reflectance distribution function calculating unit calculates a reflectance distribution function of the object surface by using the diffuse reflection image and the difference image. The display displays a reflection color of the object surface in accordance with a change of orientation of the object surface by using the reflectance distribution function.

Abstract: The present disclosure provides a white balance processing method. The white balance processing method includes processing an image to determine whether a light source is contained in a scene corresponding to the image; when the light source is contained in the scene, processing the image according to a first predetermined algorithm to acquire color temperature of the light source in the scene and performing a white balance processing on the image according to the color temperature of the light source; and when no light source is contained in the scene, performing the white balance processing on the image according to a second predetermined algorithm. The present disclosure further provides a white balance processing device, an electronic device and a non-transitory computer readable storage medium.

Abstract: A method, apparatus and program product which enable a user selected display brightness to be linked to an application program selected for use in an electronic device such as a computer system, tablet, telephone, electronic book reader, game device, music playing device and the like. A user selected adjustment of display brightness for an application program and a then existing ambient lighting condition are stored in storage during use of the application program. In response to subsequent opening of an application program for which data has been stored, the stored data is accessed and display brightness relative to the ambient lighting condition present at the subsequent opening is given the previous, stored, user selected adjustment.

Abstract: The present invention provides a DC voltage conversion circuit and a liquid crystal display device. The DC voltage conversion circuit comprises a voltage dividing unit, a voltage conversion unit, a first subtractor, an adder, a second subtractor, and a pulse width modulation unit. The pulse width modulation unit is used for correspondingly adjusting the duty ratio of the pulse signal outputted when a voltage outputted from the output terminal of the second subtractor is smaller than or greater than a preset voltage difference, and the output voltage and the feedback voltage are increased or decreased until the voltage outputted from the second subtractor output is equal to the preset voltage difference.