公开(公告)号：US08378987B2

公开(公告)日：2013-02-19

申请号：US12836016

申请日：2010-07-14

申请人： Chun-Chung Huang ,  I-Shu Lee ,  Hsiu-Ju Yang ,  Ching-Chung Wang ,  Kun-Ming Tsai ,  Yu-Hui Lin

发明人： Chun-Chung Huang ,  I-Shu Lee ,  Hsiu-Ju Yang ,  Ching-Chung Wang ,  Kun-Ming Tsai ,  Yu-Hui Lin

IPC分类号： G06F3/041

CPC分类号： H03K17/955 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04104 ,  H03K17/962 ,  H03K2217/960725 ,  H03K2217/96073 ,  H03K2217/960775

摘要： A sensing method for a capacitive touch panel includes charging a measure capacitor, setting the voltage across a mutual capacitor at the intersection of two traces of the capacitive touch panel, and then injecting partial charges of the measure capacitor into the mutual capacitor. When the intersection is touched, the capacitance value of the mutual capacitor is changed, and consequently the amount of charges injected into the mutual capacitor is changed. Hence, the voltage of the measure capacitor could be detected to determine whether or not the intersection is touched.

摘要翻译： 电容式触摸屏的感测方法包括：对测量电容器进行充电，在电容式触摸面板的两条迹线的交叉处设置互电容器两端的电压，然后将测量电容器的部分电荷注入互电容器。 当交叉点被触摸时，互电容器的电容值发生变化，因此注入互电容器的电荷量发生变化。 因此，可以检测测量电容器的电压以确定交点是否被触摸。