US 12,333,110 B2
Touch sensing part and driving method thereof
Seungrok Lee, Yongin-si (KR); Yerin Oh, Yongin-si (KR); Il Ho Lee, Yongin-si (KR); Wankee Jun, Yongin-si (KR); and Hyeonseo Cho, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Dec. 29, 2023, as Appl. No. 18/400,065.
Claims priority of application No. 10-2023-0039627 (KR), filed on Mar. 27, 2023.
Prior Publication US 2024/0329773 A1, Oct. 3, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/3208 (2016.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0443 (2019.05); G06F 3/0446 (2019.05); G09G 3/3208 (2013.01); G09G 2310/08 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A driving method of a touch sensing part, the method comprising:
sensing a touch of a user by comparing a capacitance formed by a first sensing electrode and a second sensing electrode crossing the first sensing electrode with a reference value in a reference touch mode;
when an ambient temperature is lower than a reference temperature, varying the reference value such that the reference value decreases along a decrease in the capacitance, during a first period;
when touch of the user is made, sensing the touch of the user by comparing the reference value and the capacitance, with the reference value maintained uniformly, during a second period following the first period; and
varying the reference value such that the reference value decreases, and remains below the capacitance, during a third period following the second period.