×

Distributed blanking for touch optimization

  • US 9,576,557 B2
  • Filed: 01/12/2015
  • Issued: 02/21/2017
  • Est. Priority Date: 09/07/2011
  • Status: Active Grant
First Claim
Patent Images

1. A processing system for an input device comprising a display device, the processing system comprising:

  • a display driver comprising display driver circuitry, the display driver configured to;

    couple to a plurality of common electrodes of the display device, wherein the plurality of common electrodes is configured for display updating and capacitive sensing,receive display frame updates, anddrive first common electrodes of the plurality of common electrodes for display updating, during a first time period of a first display frame, in accordance with at least a first portion of the display frame updates; and

    a touch driver configured to;

    couple to a plurality of sensor electrodes, anddrive a first sensor electrode of the plurality of sensor electrodes for capacitive sensing during a second time period of the first display frame, and wherein the first sensor electrode comprises at least one of the plurality of common electrodes,wherein the display driver is configured to drive at least second common electrodes of the plurality of common electrodes for updating, during a third time period of the first display frame, the display device based on at least a second portion of the display frame updates, wherein the second time period occurs after the first time period and before the third time period,wherein the display driver is further configured to control receipt of the display frame updates during the second time period.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×