公开(公告)号：US20160216798A1

公开(公告)日：2016-07-28

申请号：US14801465

申请日：2015-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Sik KIM ,  Jun-Young Ko ,  Kwan Young Han

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A touch display device including: a plurality of first sensing electrodes; a plurality of second sensing electrodes forming a mutual capacitance with the plurality of first sensing electrodes; an oscillation circuit connected with the plurality of second sensing electrodes and supplying energy so as to generate a first sinusoidal wave signal; a first electrode plate forming a parasitic capacitance with the first and second sensing electrodes and receiving a second sinusoidal wave signal corresponding to the first sinusoidal wave signal; and a scanning driver configured to sequentially select the plurality of first sensing electrodes one-by-one, apply a reference voltage to the selected first sensing electrode, and float the first sensing electrodes which are not selected.

Abstract translation: 一种触摸显示装置，包括：多个第一感测电极; 多个第二感测电极，与所述多个第一感测电极形成互电容; 与所述多个第二检测电极连接并提供能量以产生第一正弦波信号的振荡电路; 第一电极板，与第一和第二感测电极形成寄生电容，并接收对应于第一正弦波信号的第二正弦波信号; 以及扫描驱动器，被配置为逐个顺序地选择所述多个第一感测电极，对所选择的第一感测电极施加参考电压，并浮动未被选择的第一感测电极。