Electronic device including touch-sensitive display

摘要

A method includes detecting a touch on a touch-sensitive display, determining a time of a display update of the touch-sensitive display, and adjusting a scanning rate of scanning electrodes of the touch-sensitive display based on the time of the display update.

主权项

1. A method comprising:
beginning a scan of a touch-sensitive display, the scan including a plurality of frames in which drive electrodes are driven while signals are received from sense electrodes such that a respective drive electrode is driven in each frame while signals are received from the sense electrodes; in response to detecting a touch during the scan of the touch-sensitive display and prior to completion of the scan:
determining a length of time until a next display update; anddecreasing a time of remaining frames of the scan to complete the scan and report the scan prior to a time of a next display update of the touch-sensitive display, wherein each first frame of the scan completed prior to detecting the touch is completed in a first length of time and each second frame of the scan completed after detecting the touch is completed in a second length of time that is less than the first length of time.