| 摘要 |
Embodiments of the present invention provide a touch signal detection circuit and method, and a touch device. The touch signal detection circuit includes: a processing unit, at least one linear transmitting electrode, and at least two linear receiving electrodes; the transmitting electrode is perpendicular to the receiving electrode, the receiving electrode is perpendicular to a source driver line of a display screen, and each receiving electrode and each transmitting electrode form one node mutual capacitance; the processing unit acquires capacitance change values of at least two node mutual capacitances, and acquires a location of a touch signal according to the capacitance change values of the at least two node mutual capacitances. In technical solutions provided in the present invention, the transmitting electrode is perpendicular to the receiving electrode, the receiving electrode is perpendicular to the source driver line of the display screen, and then the location of the touch signal is acquired according to the capacitance change values, which are acquired by the processing unit, of the at least two node mutual capacitances. This can determine and reduce interference in touch signal detection caused by display screen scanning, thereby improving precision of touch location detection and a capability of resisting the interference from the display screen. |
