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1. (WO2017190683) PRESS-BUTTON CIRCUIT AND DRIVING METHOD THEREOF, KEYPAD, AND DISPLAY DEVICE

Pub. No.:    WO/2017/190683    International Application No.:    PCT/CN2017/083202
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Sat May 06 01:59:59 CEST 2017
IPC: H03M 11/20
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
K-TRONICS(SU ZHOU) TECHNOLOGY CO.,LTD.
Inventors: CAO, Yongming
Title: PRESS-BUTTON CIRCUIT AND DRIVING METHOD THEREOF, KEYPAD, AND DISPLAY DEVICE
Abstract:
Press-button circuit and a driving method thereof are provided. A press-button circuit includes a first sampling port(G1); a second sampling port(G2); a common terminal(GND); a first control device(K1), coupled to the first sampling port (G1) and the second sampling port(G2); at least one first press-button sub-circuit(A1,A2,…,Am), coupled to the first sampling port(G1) and the common terminal(GND); and at least one second press-button sub-circuit(C1,C2,…,Cn), coupled to the second sampling port(G2) and the common terminal(GND).