A touch screen and a mobile terminal

The present invention relates to the technical field of touch control, a touch screen is disclosed, a detection unit in the touch screen includes a voltage-current conversion module, a mixing module and a filter sampling module, an input terminal of the voltage-current conversion module is connected with a self-capacitor, the other input terminal is connected with a driving circuit, and the voltage-current conversion module samples the charge generated from the capacitor under the excitation of the excitation signal generated from the driving circuit, converts the charge generated from the capacitor into a current signal, and obtains the change data of the self-capacitance value by detecting the current signal. The embodiment of the invention discloses a touch screen and a mobile terminal,which reduces the area and cost of the touch screen detection circuit, improves the sampling efficiency, and thus improves the anti-interference ability of the detection circuit. 本发明实施例涉及触控技术领域，公开了种触摸屏，触摸屏中检测单元包括电压电流转换模块、混频模