APPARATUS FOR TESTING TOUCHSCREEN MODULE AND TOUCHSCREEN MODULE

摘要

Provided are an apparatus and method for testing a touchscreen module and the touchscreen module. The testing apparatus comprises: driving switches (A1, A2, …, An), separately connected in series between a driving line and a driving circuit (Drive 1, Drive 2, …, Drive n); sensor switches (K1, K2, …, Kn), separately connected in series between a sensor line and a sensor circuit (Sense 1, Sense 2, …, Sense n); a self-sensing capacitor (C); driving end capacitor switches (B1, B2, …, Bn), separately connected in series to the driving switches (A1, A2, …, An) and connected in parallel to a first end of the self- sensing capacitor (C); detection end capacitor switches (M1, M2, …, Mn), separately connected in series to the driving switches (K1, K2, …, Kn) and connected in parallel to a second end of the self- sensing capacitor (C); a control module, used to control the ON or OFF state of each switch according a preset path detection policy, and to control each driving circuit (Drive 1, Drive 2, …, and Drive n) to send a driving signal, and to determine any path fault of a signal line according to a sensor signal obtained by each sensor circuit (Sense 1, Sense 2, …, Sense n). The present touchscreen module testing apparatus and method, and automatic control of path detection by the touchscreen module based on existing functions of the control chip, improve working efficiency.