Patent ID: 9645675
Date: 2017-05-09
CPC Classifications: G06F

Claim:
1. A touch control substrate comprising a logic control module, a touch control module, a first switch control module, a first switch module, a second switch module, a second switch control module and an electrode module; wherein, the logic control module comprises a first output terminal, a second output terminal and a third output terminal, the touch control module comprises a control terminal, a first emitting terminal, a second emitting terminal and a receiving terminal, the first switch control module comprises an input terminal and an output terminal, the first switch module comprises a control terminal, a first input terminal, a second input terminal and an output terminal, the second switch module comprises a control terminal, a first input terminal, a second input terminal and an output terminal, the second switch control module comprises an input terminal and an output terminal; the first output terminal of the logic control module is coupled to the input terminal of the first switch control module, and the output terminal of the first switch control module is coupled to the control terminal of the first switch module; the second output terminal of the logic control module is coupled to the control terminal of the touch control module, the first emitting terminal of the touch control module is coupled to the first input terminal of the first switch module, the second emitting terminal of the touch control module is coupled to the second input terminal of the first switch module, and the output terminal of the first switch module is coupled to a row electrode unit of the electrode module; the third output terminal of the logic control module is coupled to the input terminal of the second switch control module, and the output terminal of the second switch control module is coupled to the control terminal of the second switch module; the first input terminal of the second switch module is coupled to the first input terminal of the first switch module, the second input terminal of the second switch module is coupled to a column electrode unit of the electrode module, and output terminal of the second switch module is coupled to the receiving terminal of the touch control module; the logic control module emits a first trigger signal to trigger the first switch control module to control to couple the first input terminal of the first switch module to the output terminal of the first switch module, and to trigger the touch control module to output a first scan signal to the electrode module through the first switch module to perform a self-capacitance scanning of a row electrode; and emits a first control signal to control the second switch control module to control to couple the first input terminal of the second switch module to the output terminal of the second switch module to transmit a row electrode signal of the electrode module to the touch control module through the first switch module and the second switch module to determine the row electrode with signal variation in the electrode module; and the logic control module further emits a second trigger signal when the electrode module finishes the self-capacitance scanning, to trigger the first switch control module to control to couple the second input terminal of the first switch module to the output terminal of the first switch module; emits a second control signal to control the touch control module to output a second scan signal to the electrode module through the first switch module to perform a mutual-capacitance scanning on the determined row electrode; and emits a third control signal to control the second switch control module to control to couple the second input terminal of the second switch module to the output terminal of the second switch module to transmit a column electrode signal of the electrode module to the touch control module through the second switch module to determine a location with signal variation in the electrode module so as to obtain a coordinate of a touch point.