发明名称 |
TOUCH SENSING DEVICE AND TOUCHSCREEN DEVICE |
摘要 |
There are provided a touch sensing device and a touchscreen device. The touch sensing device includes: a driving circuit applying a driving signal having a predetermined first period to a node capacitor; a buffer circuit converting capacitance of the node capacitor into a voltage signal; a buffer capacitor being charged and discharged depending on an output voltage from the buffer circuit; and an integration circuit integrating voltages charged in the buffer capacitor, wherein, in a normal touch mode, the buffer circuit integrates capacitance of the node capacitor to generate the voltage signal, and, in a proximity touch mode, the buffer circuit generates the voltage signal by following the voltages charged in the node capacitor. |
申请公布号 |
US2015184989(A1) |
申请公布日期 |
2015.07.02 |
申请号 |
US201414206293 |
申请日期 |
2014.03.12 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
JO Byeong Hak;JEONG Moon Suk;KWON Yong IL;PARK Tah Joon |
分类号 |
G01B7/00;G06F3/044 |
主分类号 |
G01B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A touch sensing device, comprising:
a driving circuit applying a driving signal having a predetermined first period to a node capacitor; a buffer circuit converting capacitance of the node capacitor into a voltage signal; a buffer capacitor being charged and discharged depending on an output voltage from the buffer circuit; and an integration circuit integrating voltages charged in the buffer capacitor, wherein, in a normal touch mode, the buffer circuit integrates capacitance of the node capacitor to generate the voltage signal, and, in a proximity touch mode, the buffer circuit generates the voltage signal by following the voltages charged in the node capacitor. |
地址 |
Suwon KR |