Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a bias voltage pattern. The bias voltage pattern includes alternating polarities along one dimension in a pattern having a first frequency spectrum, and alternating polarities along a second dimension in a pattern having a second frequency spectrum that is different than the first frequency spectrum. At least one of the first and second frequency spectrums may include a plurality of frequency components.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high resolution images using an adaptive temporal dithering scheme on display devices having two or more color planes. The adaptive temporal dithering scheme includes identifying the dither visibility of an image to be displayed by the color planes and adaptively applying temporal dithering to the color plane having the highest dither visibility. In one aspect, temporal dithering can be adaptively applied between two different color planes on a frame-by-frame basis based at least partly on the dither visibility of the image content.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for improving the visual appearance of displayed images at high frame rates by skipping writing lines of display data. In one aspect, clusters of changed image regions are detected, and lines are preferentially written when such clusters are detected.

Abstract: This disclosure provides methods and apparatus for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. The drive response characteristic may be determined by applying a ramp voltage to a line of the array and detecting a current pulse due to a capacitance change on the line. The ramp voltage generator can include a capacitor and a digitally controlled current source.

Abstract: This disclosure provides methods and apparatus for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. The drive response characteristic may be determined by applying a ramped voltage to a line of the array and detecting a current pulse due to a capacitance change on the line. The drive response characteristic can be determined based on data representing a width of a current pulse in the waveform or a weighted or unweighted area of a current pulse in the waveform.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for alternating the polarity of a voltage across a display element. In one aspect, a display element is maintained in a current state following an alternation of polarity. A driving signal waveform is transitioned from a hold voltage of a first polarity substantially directly to a write voltage of a second polarity, and transitioned substantially directly from the write voltage of the second polarity to a hold voltage of the second polarity.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a bias voltage pattern. The bias voltage pattern includes alternating polarities along one dimension in a pattern having a first frequency spectrum, and alternating polarities along a second dimension in a pattern having a second frequency spectrum that is different than the first frequency spectrum. At least one of the first and second frequency spectrums may include a plurality of frequency components.

Abstract: This disclosure provides methods and apparatus, including computer programs encoded on computer storage media, for reducing visual aberrations on an electronic display. One aspect is a method of writing an input image data value to a display element in a electronic display. The method includes receiving an input image data value, and quantizing the image data value based on a threshold. The threshold may be modulated based on a voltage drive signal provided to the display element in the electronic display. The method may also write the quantized image data value to the display element.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for determining a line time for writing data to display elements on one or more common lines of an array of display elements. In one aspect, the line time is determined for writing data to a line of display elements based on the received image data to be written to the line of display elements.

Abstract: This disclosure provides systems, methods and apparatus including computer programs encoded on computer storage media, for driving a pixel of a display. In one aspect, a common driver may be configured to write data to different display elements in an array of display elements with different line times. By using different line times, a refresh rate of the display may be increased and the response of the display elements to the write waveform may be improved.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array.