US 11,893,181 B2
Touch driving device having a sensing circuit and display device including the same
Yong Woo Choi, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by LX Semicon Co., Ltd., Daejeon (KR)
Filed on Sep. 8, 2022, as Appl. No. 17/940,535.
Claims priority of application No. 10-2021-0123623 (KR), filed on Sep. 16, 2021.
Prior Publication US 2023/0084559 A1, Mar. 16, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0441 (2019.05)] 15 Claims
OG exemplary drawing
 
1. A touch driving device comprising:
a drive signal generation circuit configured to generate a touch drive signal, the touch drive signal comprising one or more pulses, and to supply the touch drive signal to one touch electrode; and
a sensing circuit configured to receive a reaction signal of the one touch electrode to the touch drive signal, to convert the received reaction signal into a sensing voltage, and to sample the sensing voltage a plurality of times during a time period corresponding to the pulse width of the touch drive signal.