| 摘要 |
According to the present invention, a touch screen driving device includes: a touch screen which includes a first and a second Tx channel close to each other, an Rx channel crossing the first and second Tx channel, a first sensor capacitor formed on a part where the first Tx channel and the Rx channel cross, and a second sensor capacitor formed on a part where the second Tx channel and the Rx channel cross; a Tx driving circuit which supplies a Tx driving signal with a first phase to the first Tx channel and supplies a Tx driving signal with a second phase which is opposite to the first phase; and an integrator which receives a difference voltage between a first voltage of the first sensor capacitor by the Tx driving signal with the first phase and a second voltage of the second sensor capacitor by the Tx driving signal with the second phase and integrates the received difference voltage multiple times. |
