Electronic Device Display With Charge Accumulation Tracker

摘要

An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.

主权项

1. An electronic device, comprising:
a display; control circuitry that generates image frames that are displayed on the display; and a charge accumulation tracker that evaluates the image frames to identify when a risk of excessive charge accumulation in the display is present.