Abstract: A touch screen driving apparatus includes: a touch screen configured to include Tx (transmitting) lines, Rx (receiving) lines crossing the Tx lines, and sensor nodes formed intersections of the Tx lines and the Rx lines; a Tx driver configured to apply driving pulses to the Tx lines in such a manner of that mutually phase-inverted driving pulses are applied to the Tx lines adjacent to each other; first and second Rx drivers each configured to sample sensor node voltage received through the Rx lines, which are coupled with the Tx lines, and convert the sampled voltages into digital data; and a touch controller configured to control the Tx driver and the first and second Rx drivers. The first and second Rx drivers divide the Rx lines and each sample the sensor node voltages through the divided Rx lines, and the Rx line positioned at a boundary between the first and second drivers is commonly connected to the first and second Rx drivers.

Abstract: A touch screen driving apparatus includes: a touch screen configured to include Tx (transmitting) lines, Rx (receiving) lines crossing the Tx lines, and sensor nodes formed intersections of the Tx lines and the Rx lines; a Tx driver configured to apply driving pulses to the Tx lines in such a manner of that mutually phase-inverted driving pulses are applied to the Tx lines adjacent to each other; first and second Rx drivers each configured to sample sensor node voltage received through the Rx lines, which are coupled with the Tx lines, and convert the sampled voltages into digital data; and a touch controller configured to control the Tx driver and the first and second Rx drivers. The first and second Rx drivers divide the Rx lines and each sample the sensor node voltages through the divided Rx lines, and the Rx line positioned at a boundary between the first and second drivers is commonly connected to the first and second Rx drivers.

Abstract: Disclosed is a differential pre-emphasis driver. The driver includes a first current source supplying a first current, a second current source supplying a second current greater than the first current, a first select circuit for selectively connecting the first current source to a first output terminal or a second output terminal, and a second select circuit for selectively connecting the second current source to the first output terminal or the second output terminal. The first and second select circuits pre-emphasize a transmission signal by selectively combining the first output terminal, the second output terminal, the first current source and the second current source.

Abstract: Disclosed is a differential pre-emphasis driver. The driver includes a first current source supplying a first current, a second current source supplying a second current greater than the first current, a first select circuit for selectively connecting the first current source to a first output terminal or a second output terminal, and a second select circuit for selectively connecting the second current source to the first output terminal or the second output terminal. The first and second select circuits pre-emphasize a transmission signal by selectively combining the first output terminal, the second output terminal, the first current source and the second current source.