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 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 data storage capacitors and other pixel circuit structures in a subset of the pixels with transparent window structures, by selectively removing portions of light-emitting diode anodes, and by shifting anodes. 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: Integrated circuit devices and methods of forming the same are provided. The devices may include a substrate including a cell region and an extension region and conductive layers stacked on the cell region in a vertical direction. The conductive layers may extend onto the extension region and may have a stair-step structure on the extension region. The devices may also include vertical structures on the substrate. Each of the vertical structures may extend in the vertical direction, and the vertical structures may include a first vertical structure on the cell region and a second vertical structure on the extension region. The first vertical structure may extend through the conductive layers and may include a first channel layer, the second vertical structure may be in the stair-step structure and may include a second channel layer, and the second channel layer may be spaced apart from the substrate in the vertical direction.

Abstract: Systems and electronic displays with improved contrast even under bright-light conditions are provided. Such an electronic display may include a self-emissive pixel (e.g., OLED or ?-LED) with a corresponding liquid crystal switchable retarder pixel. A liquid crystal layer of the switchable retarder pixel may be tuned to an “on” state or an “off” state. In the “on” state, the switchable retarder pixel may allow outside light that enters the pixel to reflect back out of the pixel. This may add to the amount of light that appears to be emitted from that pixel. In the “off” state, the switchable retarder pixel may block the outside light that enters the pixel from reflecting back out of the pixel. This may reduce the amount of light that appears to be emitted from that pixel. Selectively controlling the switchable retarder pixels may allow for increased contrast even under bright-light conditions.

Abstract: The present invention relates to a thermosetting resin composition for coating a metal film having excellent crack resistance and a metal laminate using the same.

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: 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: 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: A display device comprises a chassis and a cover glass substrate. A display unit is positioned between the cover glass substrate and the chassis. The display unit comprises a backlight housing comprising a shelf between the cover glass substrate and a base. A light guide plate is positioned within the backlight housing. A display glass substrate is positioned between the light guide plate and the cover glass substrate, with the display glass substrate bonded to the shelf.

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: A display device comprises a first chassis and a first backlight housing attached to the first chassis and comprising a first wall. A first optical film layer between a first light guide plate and a first rear polarizer comprises a secured end bonded to the first wall. A second chassis is rotatably coupled to the first chassis and includes a second backlight housing attached to the second chassis and comprising a second wall. A second optical film layer between a second light guide plate and a second rear polarizer includes a secured end bonded to the second wall.

Abstract: An electronic device is provided. The electronic device includes a first housing including a first display device and a first connection unit having a first protrusion formed thereon, a second housing including a second display device coupled to the first connection unit to be movable in a predetermined direction and a second connection unit having a second protrusion formed thereon, and a circular plate including a spiral recess, the circular plate being coupled to the first protrusion and the second protrusion. The circular plate is configured such that, by rotation of the circular plate, the first protrusion and the second protrusion move in a predetermined direction, and depending on the movement, a distance between the first housing and the second housing is adjustable.

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: An evaporating device includes: an evaporator, a defrost heater, and an evaporation pan, wherein the evaporation pan is made of aluminum and the inner side of the evaporation pan is coated with a surface treatment to improve the melting of ice in the evaporation pan.

Abstract: The present invention relates to an input sensor capable of sensing writing pressure and a display device including the same.

Abstract: A digitizer module is formed on a film substrate which is used as a substrate of an OLED module and stacked with the OLED module, thereby providing an OLED integrated digitizer applicable to a flexible display device.

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.