Abstract: An electronic device may have a variable refresh rate display. Static content may be displayed on the display at a lower refresh rate than moving content to conserve power. The display may include an array of pixels. Display driver circuitry in the display may load image data into rows of the pixels. The display driver circuitry may have digital-to-analog converter circuitry that supplies data signals to the array. The display driver circuitry may respond to a variable refresh rate control signal that is asserted and deasserted depending on whether static or moving image content is to be displayed. The display driver circuitry may use the digital-to-analog converter circuitry to apply a time-varying scaling factor to the image data. The magnitude of the scaling factor may be adjusted during transitions between refresh rates to help suppress luminance variations that might otherwise result in flickering on the display.

Abstract: A pixel circuit operates to output a high drive current for high-current display applications by operating the drive transistor in the triode region. To maintain operation of the drive transistor in the triode region in a stable manner, the source-drain voltage dependence of the output current of the drive transistor is compensated with a bias transistor, which keeps the drain voltage of the drive transistor constant at a target drain voltage. The bias transistor is controlled by an operational amplifier (Opamp) running a negative feedback loop to ensure a fixed target voltage occurs at the drain of the drive transistor. To configure the negative feedback loop, the Opamp output terminal is connected to the gate of the bias transistor, with the negative terminal being connected to the drain of the drive transistor and the positive terminal being connected to a voltage supply line that supplies the target voltage.

Abstract: A display device includes a pixel circuit and a control circuit configured to control the pixel circuit. The pixel circuit includes a light-emitting element, and a driving thin-film transistor configured to control the amount of current to the light-emitting element. The control circuit is configured to apply a stress current higher than a maximum current for the light-emitting element to display images to the driving thin-film transistor but not to supply current to the light-emitting element in a period other than light-emitting periods of the light-emitting element to display an image.

Abstract: A device acquires first sense data representing first electrical signals sensed from a first subset of a plurality of sensors of a touch surface. The device acquires second sense data representing second electrical signals sensed from a second subset of the plurality of sensors. The device detects a first set of one or more touches based on the first sense data and the second sense data. After the acquiring of the first sense data, the device acquires third sense data representing third electrical signals sensed from the first subset of the plurality of sensors; and detects a second set of one or more touches at the touch surface based on the second sense data and the third sense data.

Abstract: Methods and systems for filtering content include identifying content for presenting in a rendering space defined by one or more mechanisms of a head mounted display (HMD), wherein the content is interactive, streaming content. A rating score for the content is identified. The content is dynamically adjusted to selectively filter a portion of the content based on a user profile of the user, rating score of the content, and ongoing interactions detected at the content. The adjusted content is formatted for rendering on the HMD. The formatted content is automatically transmitted to the HMD for rendering, in response to the request.

Abstract: A pixel driving circuit and a method for controlling the same, and a display apparatus are provided. The pixel driving circuit includes: a charge storage circuit having a first terminal electrically coupled to a first node, and a second terminal electrically coupled to a second node; a driving circuit electrically coupled to the first node, a third node, and a fourth node; a first switching circuit electrically coupled to a reset signal terminal, the first node, the second node, the third node, the fourth node, and an initialization signal terminal; a second switching circuit electrically coupled to a light-emitting signal terminal, a first voltage terminal, the fourth node, the third node, and a first electrode of a light emitting element; and a third switching circuit electrically coupled to a control electrode signal terminal, a data signal terminal, and the second node.

Abstract: A display device includes: a display panel including a plurality of pixels; a power management circuit configured to generate an analog power supply voltage; and a data driver configured to provide a pre-emphasis voltage and a data voltage to the plurality of pixels based on the analog power supply voltage, wherein the display device is configured to adjust a voltage level of the pre-emphasis voltage according to a distance from the data driver to each of the plurality of pixels to which the pre-emphasis voltage is applied, and wherein the display device is configured to adjust a voltage level of the analog power supply voltage according to the adjusted voltage level of the pre-emphasis voltage.

Abstract: A device includes an input unit, a nonlinear converter, and an output unit. The nonlinear converter and the output unit are connected via a connection path having a delay mechanism that realizes a feedback loop giving a delay to a signal. The delay mechanism includes a conversion mechanism that generates a plurality of signals with different delay times using the signal output from the nonlinear converter, generates a new signal by superimposing the plurality of signals, and outputs the generated signal to the output unit.

Abstract: In an embodiment of the present disclosure, there is provided a display device including: a plurality of subpixels between a line of a first power voltage and a line of a second power voltage, the plurality of subpixels configured to be supplied with a driving current and to emit light in response to the driving current; and a power supply unit configured to generate the first power voltage and the second power voltage based on an external input voltage, wherein the power supply unit generates power when the external input voltage corresponds to between a preset maximum voltage and a minimum voltage, and the power supply unit reduces a voltage difference between the first power voltage and the second power voltage when the external input voltage corresponds to between a preset reference voltage and the minimum voltage.

Abstract: A compensation method and a compensation apparatus for an organic light-emitting display, and a display device are disclosed. The compensation method includes: determining a write-back voltage of each sub-pixel to be compensated in a row to be compensated in a current frame according to a data voltage and a gain value of the sub-pixel to be compensated in the row to be compensated in the current frame, the gain value being greater than 1; and respectively writing back the write-back voltage of each sub-pixel to be compensated in the row to be compensated in the current frame correspondingly to the sub-pixel to be compensated in the row to be compensated in scan time of a blank period of the current frame.

Abstract: An information handling system may include a display comprising an organic light-emitting diode (OLED) panel and an OLED degradation management subsystem configured to, responsive to a condition for initiating a calibration of the OLED panel, logically divide the OLED panel into a plurality of non-overlapping test windows of a defined size, measure a physical quantity for a pixel of at least one of the plurality of non-overlapping test windows to determine a deviation of the at least one test window from a linear degradation profile, and correct for non-linear degradation occurring in the at least one test window based on the deviation.

Abstract: The invention relates to Electronic pen (100) with pen position detection, comprising at least a writing lead, at least one electric voltage source, at least one digital processing unit, at least one data transfer module, and an inertial position detection sensor system for determining the location and movement of the electronic pen (100), wherein the electronic pen (100) is configured for an initial specification of a writing coordinate system with two axes X, Y (107, 108) being orthogonal to each other on a two-dimensional writing substrate (106) and with an axis Z being perpendicular to the two-dimensional writing substrate, characterized in that the inertial position detection sensor system is configured for the determination of accelerations and acceleration profiles of the electronic pen along the X-axis (107) and along the Y-axis (108) for a plurality of pairs of different axis orientations of the X-axis and Y-axis on the writing substrate (106), whereby for each pair of axis orientations, the axis ori

Abstract: A device for providing a touch-based user interface is disclosed. The device comprises a screen, a camera, and a processor. The camera images a reflection of the screen by a cornea of a user of the device. The processor displays at least one user-interface element on the screen, detects that a finger of a hand touches or is about to touch the screen, estimates a trajectory of the finger, and determines an intended location of touch of the finger on the screen. The trajectory of the finger is estimated by analyzing a sequence of images of the reflection. The intended location of touch is determined based on the estimated trajectory of the finger.

Abstract: A digital-to-analog conversion circuit includes: a decoder that, if set to a first selection state, selects two different reference voltages from a reference voltage group on the basis of a digital data signal and outputs the two reference voltages as first and second selection voltages, and if set to a second selection state, selects two reference voltages from the reference voltage group in a manner allowing redundancy and outputs the two reference voltages as the first and second selection voltages; and an amplifier circuit that amplifies and outputs a voltage obtained by averaging a combination of the first and second selection voltages with weighting factors set in advance.

Abstract: An AMOLED pixel driving circuit and a driving method are disclosed. The AMOLED pixel driving circuit adopts a 6T1C structure, wherein the thin-film transistor characteristic of the second thin film transistor is the same as that of the driving thin-film transistor, that is, the first thin-film transistor. Accordingly, the threshold voltage of the driving thin-film transistor can be compensated by the leakage current of the second thin-film transistor, so that the current flowing through the organic light emitting diode is stable, ensuring uniform brightness of the organic light emitting diode, and improving the display effect of the screen.

Abstract: The present disclosure provides a compensation device, a display screen, a display device, and a compensation method. The compensation device includes a detection circuit and a processor. The detection circuit includes a resistance-sensitive element provided in a deformation area of the display screen. A resistance of the resistance-sensitive element changes when the resistance-sensitive element is deformed. The detection circuit is configured to detect a resistance change amount of the resistance-sensitive element. The processor is configured to obtain a drift amount of a characteristic curve of a driving transistor in the deformation area according to the resistance change amount, and adjust a driving voltage signal output to the driving transistor according to the drift amount.

Abstract: Device for displaying images comprising: a line selector, the line selector and/or the column controller comprising a selection circuit comprising a succession of output channels corresponding to various rows of the matrix, said selection circuit further comprising a succession of shift registers and a succession of switches controlled by at least one configuration word for controlling the respective configurations of the succession of switches of said selection circuit and for placing the switches of said succession of switches respectively in one of said first configuration or second configuration according to the respective states of configuration bits of this configuration word, the first configuration allowing to propagate a signal in the succession of registers, the second configuration allowing to duplicate a signal emitted on the preceding output channel on the given output channel in order to consequently duplicate on a row corresponding to the given output channel a piece of data intended for a row

Abstract: A zero bezel display formed from an organic light emitting diode film defines a viewing perimeter within an outer perimeter and supports control lines between the viewing perimeter and outer perimeter. A relief cut from each corner of the display film allows each side of the display film to fold to the rear of the display so that the viewing perimeter defines the viewable edge of the display.

Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a display device, and relates to the field of display technology. The pixel driving circuit includes a first driver, a second driver, and a light emitting element. The first driver is configured to generate a first driving current. The second driver is configured to generate a second driving current. The first driving current and the second driving current alternately drive the light emitting element as a main driving current.

Abstract: A pixel circuit is provided, which includes a switching unit, a driving unit, a first light-emitting control unit, a second light-emitting control unit, a light-emitting unit, a storage unit, a voltage dividing unit, a reset unit, and a compensation unit. In the pixel circuit provided by the embodiment of the disclosure, the compensation unit, which is not limited to a duty cycle of a switching unit, can independently compensate a threshold voltage of the driving unit during a duty cycle of the compensation signal, and is suitable for high frequency pixel driving.