US 11,733,798 B2
Touch sensing system and display system including the same
Minsung Kim, Seoul (KR); Sanho Byun, Seoul (KR); Roots Huang, New Taipei (TW); Yao Sheng Liang, Hsinchu County (TW); Jungmoon Kim, Seoul (KR); and Dongjo Park, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 21, 2022, as Appl. No. 17/699,728.
Application 17/699,728 is a continuation of application No. 16/822,685, filed on Mar. 18, 2020, granted, now 11,307,708.
Claims priority of application No. 10-2019-0086899 (KR), filed on Jul. 18, 2019.
Prior Publication US 2022/0214794 A1, Jul. 7, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0446 (2019.05); G06F 2203/04107 (2013.01); G06F 2203/04108 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An operating method of a display system configured to include a touchscreen display panel and a controller configured to control the touchscreen display panel, comprising:
activating a touch mode for displaying an image and sensing a touch input of an object;
determining whether an event has occurred;
alternatively activating the touch mode and a proximity mode when the event has occurred;
determining whether the object is present within a predetermined distance;
inactivating the touch mode when the object is present within the predetermined distance; and
sensing proximity to the object,
wherein the touchscreen display panel includes a touch panel having a plurality of touch sensors and a display panel having a plurality of pixels, and
wherein the touch panel includes a first area configured to perform a proximity sensing operation by at least two touch sensors among the plurality of touch sensors in the proximity mode; a second area configured to shield an electric field radiated from the at least two touch sensors of the first area in the proximity mode; and remaining areas configured to be floated to a touch sensing receiver in the proximity mode.