US 12,429,981 B2
Input sensing device and display device including the same
Moon Jae Jeong, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on May 23, 2024, as Appl. No. 18/672,319.
Application 18/672,319 is a continuation of application No. 18/301,444, filed on Apr. 17, 2023, granted, now 12,061,762.
Application 18/301,444 is a continuation of application No. 17/817,403, filed on Aug. 4, 2022, granted, now 11,650,697, issued on May 16, 2023.
Claims priority of application No. 10-2021-0159578 (KR), filed on Nov. 18, 2021.
Prior Publication US 2024/0310954 A1, Sep. 19, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04182 (2019.05) [G06F 3/0446 (2019.05); G06F 2203/04112 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An input sensing device comprising:
a sensor array comprising a plurality of electrodes; and
an analog circuit to process a first sensing signal and a second sensing signal provided from the sensor array to output analog signals,
wherein the analog circuit comprises:
an amplifier to differentially amplify the first sensing signal and the second sensing signal to output a first differential signal and a second differential signal; and
a demodulator to output in-phase signals corresponding to the first and second differential signals and to output quadrature signals corresponding to the first and second differential signals,
wherein the output analog signals are based on the in-phase signals and the quadrature signals.