Abstract:
An electronic device includes processors that generate image data. The electronic device also includes an electronic display that displays the image data over a first frame duration by programming a first row of display pixels with the image data. The electronic display also displays the image data over the first frame duration by causing the first row of display pixels to emit light for an emission duration that is based at least in part on a first luminance of the image data. The electronic display further displays the image data over the first frame duration by resetting the first row of pixels before an end of the first frame duration.
Abstract:
A method for operating an electronic display includes receiving, using a controller, sensor data related to operational parameters of the electronic display based at least in part on illuminating a sense pixel of at least one row of pixels of the electronic display, wherein a first set of pixels below the at least one row of pixels renders a portion of a first image frame and a second set of pixels above the at least one row of pixels renders a portion of a second image frame. The method also includes adjusting, using the controller, image display on the electronic display based at least in part on the sensor data.
Abstract:
A mobile electronic device includes a display having a pixel and processing circuitry separate from but communicatively coupled to the display. The processing circuitry prepares image data to send to the pixel and adjusts the image data to compensate for operational variations of the display based on feedback received from the display that describes a present operational behavior of the pixel. The mobile electronic device also includes additional electronic components that affect the present operational behavior of the pixel depending on present operational behavior of the additional electronic components.
Abstract:
A display has an array of pixels each of which has a light-emitting diode (30) such as an organic light-emitting diode. A drive transistor (TD) and an emission transistor (TE) are coupled in series with the light-emitting diode (30) of each pixel (22) between a positive power supply (VDDEL) and a ground power supply (VSSEL). The pixels (22) include first and second switching transistors (T1, T2). A data storage capacitor (Cst1) is coupled between a gate and source of the drive transistor (TD) in each pixel. Signal lines (Data) may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors (T1, T2), emission transistors (TE), and drive transistors (TD) may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.
Abstract:
A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.
Abstract:
An electronic device that includes processing circuitry configured to generate a frame of image data that has a frame duration is provided. The electronic device includes a display that has a plurality of pixels. Each of the plurality of pixels displays image data from the frame of image data for a pixel emission period that is less than the frame duration. A first pixel of a column of pixels of the plurality of pixels begins displaying the image data from the frame of image data at a first time for a first duration. A second pixel of the column of pixels that is adjacent to the first pixel begins displaying the image data from the frame of image data at a second time for a second duration. The first and second durations are equal to the pixel emission period. The second time begins after the first duration of time.
Abstract:
An electronic device includes an electronic display, whereby the electronic display includes an active area that includes a pixel having a display behavior that varies with temperature. The electronic display also includes processing circuitry. The processing circuitry generates image data (106) to send to the pixel and adjust the image data to generate corrected image data (52) based at least in part on a stored correction value for the pixel (96), wherein the stored correction value corresponds to an effect of temperature on the pixel.
Abstract:
An electronic device includes an electronic display and processing circuitry. The electronic display includes pixels with behaviors that vary with temperature. As such, the processing circuitry generates image data to send to the electronic display (102) and adjust the image data (52) or vary an operation of the electronic display based at least in part on a predicted temperature effect on at least part of the active area of the electronic display (100). The processing circuitry determines the predicted temperature effect at least in part due to a first heat producing component or changes in content of the image data.
Abstract:
Electronic devices, stored instructions, and methods for delaying operations that may increase a length of time used to charge a battery. The operations may include, for example, display off-time sensing that detect aging of a display while the display is off to set compensation values for operation of the display the next time the display is on. By delaying the operations until battery charging transitions into a reduced current consumption, the battery charging may occur more quickly that if such operations are performed during a higher current demand since reduced current availability may greatly increase a duration of time used to charge the battery in the higher current demand portion of the battery charging.