US 12,130,989 B2
System and method for touch-to-display noise mitigation
Masaaki Shiomura, Tokyo (JP); Daisuke Ito, Tokyo (JP); and He-Wei Li, Guangdong Shen (CN)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Sep. 8, 2023, as Appl. No. 18/463,402.
Application 18/463,402 is a continuation of application No. 17/525,846, filed on Nov. 12, 2021, granted, now 11,853,510.
Prior Publication US 2023/0418417 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04184 (2019.05) [G06F 3/04166 (2019.05); G06F 3/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An input-display device, comprising:
a display screen comprising a plurality of display pixels;
a touch screen comprising a plurality of capacitive sensing electrodes in a sensing region of the display screen; and
a display and touch sensor controller configured to:
generate, during a first display frame, a first touch sensing waveform to be applied to the touch screen, wherein the first touch sensing waveform generates a first touch-to-display noise pattern of touch-to-display noise artifacts; and
generate, during a second display frame, a second touch sensing waveform to be applied to the touch screen, wherein the second touch sensing waveform generates a second touch-to-display noise pattern of touch-to-display noise artifacts,
wherein the second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.