公开(公告)号：US20150049061A1

公开(公告)日：2015-02-19

申请号：US14530249

申请日：2014-10-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazushige TAKAGI ,  Manabu INOUE ,  Naoki KOSUGI ,  Takahito NAKAYAMA ,  Akira TOKAI ,  Shigeo KASAHARA ,  Hiroyuki KADO

IPC: G06F3/044 ,  G09G3/36 ,  G09G5/18

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G09G3/3648 ,  G09G3/3685 ,  G09G5/18 ,  G09G2354/00

Abstract: An object of the present technology is to improve the detection accuracy of a capacitance coupling type input device at a time of touch operation. An input device includes: a plurality of driving electrodes and a plurality of detection electrodes crossing each other; and capacitive elements formed in respective crossed portions between the driving electrodes and the detection electrodes. During a touch detection period, a driving signal is applied to the driving electrodes on a line block basis of the scanning signal lines, and touch is detected based on a detection signal output from each of the detection electrodes, the touch detection period is provided in a display update period in a horizontal scanning period of the display apparatus, and during a horizontal scanning period following a certain horizontal scanning period during which touch detection has been performed, a driving signal whose potential is has been changed to a direction opposite to that of the previous horizontal scanning period is applied to the driving electrodes to start touch detection.

Abstract translation: 本技术的目的在于提高触摸操作时电容耦合型输入装置的检测精度。 输入装置包括：多个驱动电极和多个彼此交叉的检测电极; 以及形成在驱动电极和检测电极之间的交叉部分中的电容元件。 在触摸检测期间，驱动信号以扫描信号线为基准的线块施加到驱动电极，并且基于从每个检测电极输出的检测信号来检测触摸，触摸检测周期设置在 显示装置的水平扫描期间的显示更新期间，在进行了触摸检测的一定的水平扫描期间之后的水平扫描期间，电位已经改变为与电位相反的方向的驱动信号 将先前的水平扫描周期施加到驱动电极以开始触摸检测。