Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.

Abstract: A display may have an array of pixels with light-emitting diodes that emit light to form images. The display may have a substrate with thin-film transistor circuitry for supplying signals to the light-emitting diodes. Anodes may be formed on the thin-film transistor circuitry, emissive material may be formed on the anodes, and a cathode layer may overlap the anodes. During operation, currents may flow between the anodes and the cathode layer to illuminate the diodes. An array of electrical components such as an array of light sensors in an integrated circuit may be mounted under the substrate. An array of corresponding light transmitting windows may be formed in the display each of which may allow light to pass through the display to a corresponding one of the light sensors. Light transmitting windows may be formed by patterning the cathode layer and supplying the windows with antireflection layers.

Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

Abstract: The present disclosure provides devices and techniques for correcting misalignment in a multi-display system by identifying a misalignment between a plurality of displays in the multi-display device and determining a line start position of at least one of the plurality of displays in response to identifying the misalignment. The techniques further include transmitting a first line start signal at the line start position of the at least one of the plurality of displays to correct the misalignment.

Abstract: A window includes a window that includes a first hole, a second hole, and a third hole between the first and second holes, a front protection film disposed on a front surface of the window that covers the first, second, and third holes, a first protection film disposed on a rear surface of the window that covers the first hole, a second protection film disposed on the rear surface of the window that covers the second hole, a cover disposed on the rear surface of the window and inserted into the third hole, the cover including a plurality of holes, and a cap disposed on the rear surface of the window and on the first and second protection films and the cover.

Abstract: A head unit and a method for controlling the same are disclosed, which output the audio streams generated from a plurality of devices connected to a single head unit through Bluetooth communication. The head unit of a vehicle includes a Bluetooth communicator and a controller. The Bluetooth communicator is configured to be communicably connected to a plurality of Bluetooth devices. The controller is configured to allocate priority information based on a preset reference to the respective Bluetooth devices, and control an audio route of each of the plurality of Bluetooth devices according to the priority information so as to output all audio streams generated by the plurality of Bluetooth devices.

Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.

Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation).

Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.

Abstract: A display driver circuit includes a first memory in which a plurality of gamma adjustment datasets are stored, each gamma adjustment dataset of the plurality of gamma adjustment datasets corresponding with a respective amount of display degradation, a second memory in which selection instructions and compensation instructions are stored, and a processor configured via execution of the selection instructions to select one of the plurality of gamma adjustment datasets based on usage data indicative of past display operation. The processor is further configured via execution of the compensation instructions to generate drive control signaling in accordance with the selected gamma adjustment dataset to compensate for display degradation arising from the past display operation.

Abstract: Disclosed is a system for simultaneously measuring a surface normal vector and a surface reflection function in microscale. The system includes a light dome having a hemispherical-shaped structure and including LEDs to radiate light to an object placed therein; a macro lens installed camera arranged over the light dome to photograph the object through a hole formed at a center of the light dome under an environment in which a light is radiated from the light dome; an xyz micro-translation stage arranged under the light dome and configured to move in xyz-directions to adjust a focal distance between the macro lens installed camera and the object, and a measurement unit configured to control the light dome and the macro lens installed camera to obtain a microscale image, and configured to simultaneously measure a surface normal vector and a surface reflection function of the object based on the microscale image.

Abstract: While organic light-emitting diode (OLED) display devices are often calibrated upon commissioning to provide similar output colors in response to input signals, they are not calibrated based on varying display content. Significant variation in output color as a function of varying output display content is increasingly unacceptable to users. In an OLED display, an emissive electroluminescent layer selectively emits light in discrete areas in response to an electric current. Higher overall applied electrical currents correspond to higher overall output luminesces, however, as current is increased, attendant voltage generally drops. Variation in attendant voltage causes variation in output color.

Abstract: Varying electrical currents are selectively applied to each pixel within an OLED display to create desired images. High applied electrical currents to groupings of nearby pixels create high luminance features, while low applied electrical currents to groupings of nearby pixels create low luminance features. A combination of a high luminance and low luminance features may be present on the OLED display. Pulse-width modulation (PWM) is often used to increase the current applied to the OLED display by modulating the applied current, particularly when creating low luminance features. The presently disclosed systems and methods detect a gray portion of an image to be presented, and select PWM independently of peak luminance based on the detected gray portion. The allows the OLED display to display low-luminance features at high quality, even when high-luminance features are also present within a frame.

Abstract: A method for optical calibration of a plurality of displays is provided. At a manufacturing stage, a plurality of one-time programmable (OTP) values for each display is created, each OTP value including a value of manufacture gamma voltage corresponding to a manufacture luminance and color value. The OTP values are stored in non-volatile memory of the respective display. At an assembly stage, each display is connected to a respective power management integrated circuit (PMIC); assembly test voltages are applied corresponding to the manufacture gamma voltage of each stored OTP value. Differences between assembly luminance and color values of each display and an expected value as a result of applying each assembly test voltage are measured. For each display, one value of manufacture gamma voltage of a respective OTP value is selected that corresponds to a minimal difference between the assembly luminance and color values and the expected value.

Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation). By dynamically adjusting the bias voltage levels, the TFT displays of the present disclosure consume lower power than their conventional counterparts and improve the lifetime of the display itself.

Abstract: Disclosed are techniques for more accurately estimating the pose of a camera used to capture a three-dimensional scene. Accuracy is enhanced by leveraging three-dimensional object priors extracted from a large-scale three-dimensional shape database. This allows existing feature matching techniques to be augmented by generic three-dimensional object priors, thereby providing robust information about object orientations across multiple images or frames. More specifically, the three-dimensional object priors provide a unit that is easier and more reliably tracked between images than a single feature point. By adding object pose estimates across images, drift is reduced and the resulting visual odometry techniques are more robust and accurate. This eliminates the need for three-dimensional object templates that are specifically generated for the imaged object, training data obtained for a specific environment, and other tedious preprocessing steps.

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing subpixels in some of the pixels with transparent windows. When subpixels are replaced by transparent windows, adjacent subpixels may be overdriven to compensate for lost light from the replaced subpixels. Adjacent subpixels may also be enlarged to help compensate for lost light. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

Abstract: A graphical display device includes a plurality of color-specific subpixels spatially distributed across a display region. Subpixel wear compensation is performed for some or all of the color-specific subpixels. For each color-specific subpixel, the compensation may include sampling one or more display signals directed to the color-specific subpixel to obtain a time-series of sampled values. The compensation may further include storing, in non-volatile storage, compensation data for the color-specific subpixel derived from the time-series of sampled values. The compensation may further include driving the color-specific subpixel based on the compensation data.

Abstract: An electronic device includes a first digital-to-analog converter (DAC) configured to provide brightness control for a first subset of pixels of a display and a second DAC configured to provide brightness control for a second subset of pixels of the display. A display controller selectively operates the second DAC to provide the brightness control for the second subset of pixels while simultaneously operating the first DAC to provide the brightness control for the first subset of pixels of the display.