公开(公告)号：US20160188081A1

公开(公告)日：2016-06-30

申请号：US14726035

申请日：2015-05-29

Applicant: LG Display Co., Ltd.

Inventor： Min Sung KIM ,  Hyung Uk JANG ,  Jin Soo CHUNG ,  Yoonion HWANG

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103

Abstract: In touch panel display device, a first touch electrode group has a first plurality of touch electrodes and a second touch electrode group has a second plurality of touch electrodes. A first current supplier circuit supplies a first current during a first current supply period to the first touch electrode group, and the second current supplier circuit supplies a second current during a second current supply period to the second touch electrode group. The sensing signal receiver circuit holds a first touch voltage for the first touch electrode group following the first current supply period, and holds the second touch voltage for the second touch electrode group following the second current supply period. The sensing signal receiver determines based on the first held touch voltage and the second held touch voltage, whether a touch occurred in each of the first touch electrode group and the second touch electrode group.

Abstract translation: 在触摸面板显示装置中，第一触摸电极组具有第一多个触摸电极，第二触摸电极组具有第二多个触摸电极。 第一当前供应商电路在第一电流供应周期期间向第一触摸电极组提供第一电流，并且第二电流供应器电路在第二电流供应周期期间向第二触摸电极组提供第二电流。 感测信号接收器电路在第一电流供应周期之后保持用于第一触摸电极组的第一触摸电压，并且在第二电流供应周期之后保持用于第二触摸电极组的第二触摸电压。 感测信号接收机基于第一保持触摸电压和第二保持触摸电压来确定是否在第一触摸电极组和第二触摸电极组中的每一个中发生触摸。