US 11,853,510 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 Nov. 12, 2021, as Appl. No. 17/525,846.
Prior Publication US 2023/0152925 A1, May 18, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04184 (2019.05) [G06F 3/044 (2013.01); G06F 3/04166 (2019.05)] 20 Claims
OG exemplary drawing
 
1. An input-display device, comprising:
a display screen disposed on a display substrate, the display screen comprising a plurality of display pixels;
a plurality of capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen; and
a display controller module, the display controller module comprising:
a touch sensing controller configured to:
generate, during a first display frame, a first touch sensing waveform to be applied to a touch screen of a display, wherein the first touch sensing waveform generates on the display 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 on the display 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.