US 11,809,661 B2
Display device and method of driving the same
Soon Gyu Lee, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Mar. 10, 2023, as Appl. No. 18/182,190.
Application 18/182,190 is a continuation of application No. 17/544,101, filed on Dec. 7, 2021, granted, now 11,614,833.
Claims priority of application No. 10-2021-0043559 (KR), filed on Apr. 2, 2021.
Prior Publication US 2023/0214061 A1, Jul. 6, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/01 (2006.01)
CPC G06F 3/04184 (2019.05) [G06F 3/011 (2013.01); G06F 3/0418 (2013.01); G06F 3/0446 (2019.05); G06F 3/04166 (2019.05); G06F 2203/04108 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel configured to display an image;
a touch sensor configured to operate in one of a normal sensing mode in which a surface touch is recognized and a proximity sensing mode in which a hovering touch is recognized; and
a touch driver configured to supply a touch driving signal including driving pulses having a rising period and a falling period to the touch sensor during a sensing period, and receive a touch sensing signal from the touch sensor,
wherein, in the proximity sensing mode, the touch driver sets a noise period in the sensing period, when it is determined that a variation of the image is greater than a predetermined reference variation, and
wherein, during the noise period, the touch driver changes a ratio of a width of a rising period of each of the driving pulses and a width of a falling period of each of the driving pulses, and changes amplitudes of the rising period and the falling period of each of the driving pulses.