发明名称 |
Detection Method, Device And System For Detecting Self-Capacitance Touch Screen |
摘要 |
It is provided a self-capacitance touch screen detection method, device and system. The method includes: receiving a scanning waveform by a currently detected channel of a self-capacitance touch screen; inputting the voltage of the scanning waveform into an input terminal of a voltage following unit, and driving at least a preset channel that is adjacent to the currently detected channel of the self-capacitance touch screen via an output terminal of the voltage following unit; and calculating self-capacitance touch screen coordinate data for a touch in the currently detected channel. The method not only avoids the disturbance to the detection for a touch in the currently detected channel generated due to water vapor or a water droplet, but also obtains an increased relative change generated by the same touch, and thereby the detection sensibility of the self-capacitance touch screen is improved. |
申请公布号 |
US2016378262(A1) |
申请公布日期 |
2016.12.29 |
申请号 |
US201615261466 |
申请日期 |
2016.09.09 |
申请人 |
FocalTech Electronics, Ltd. |
发明人 |
MO Lianghua;LIU Weiping |
分类号 |
G06F3/041;G06F3/044 |
主分类号 |
G06F3/041 |
代理机构 |
|
代理人 |
|
主权项 |
1. A detection method for a capacitive touch screen, comprising:
receiving a scanning waveform by a currently detected channel of a self-capacitance touch screen; inputting the voltage of the scanning waveform into an input terminal of a voltage following unit, and driving at least a preset channel that is adjacent to the currently detected channel of the self-capacitance touch screen via an output terminal of the voltage following unit; and calculating self-capacitance touch screen coordinate data for a touch in the currently detected channel. |
地址 |
Grand Cayman KY |