Touch driving device and operating method thereof

A touch driving device, configured to drive a plurality of transmitting electrodes of a touch panel by using a transmitting matrix, and read a sensing result matrix corresponding to the transmitting matrix from a plurality of receiving electrodes of the touch panel, the touch driving device comprising:

• a first driving circuit, coupled to a first transmitting electrode group of the transmitting electrodes and coupled to a first receiving electrode group of the receiving electrodes, wherein the first driving circuit uses a first transmitting sub-matrix of the transmitting matrix to drive the first transmitting electrode group during a first period, and reads a first sensing result sub-matrix of the sensing result matrix from the first receiving electrode group;
• and
• a second driving circuit, coupled to a second transmitting electrode group of the transmitting electrodes and coupled to a second receiving electrode group of the receiving electrodes, wherein the second driving circuit uses a second transmitting sub-matrix of the transmitting matrix to drive the second transmitting electrode group during the first period, and reads a second sensing result sub-matrix of the sensing result matrix from the second receiving electrode group, wherein
• during the first period, the first driving circuit uses the first transmitting sub-matrix to drive a plurality of first transmitting electrodes in the first transmitting electrode group, and the second driving circuit uses the second transmitting sub-matrix to drive a plurality of second transmitting electrodes in the second transmitting electrode group;
• and
• during a second period, the first driving circuit uses the first transmitting sub-matrix to drive a plurality of third transmitting electrodes in the first transmitting electrode group, and the second driving circuit uses the second transmitting sub-matrix to drive a plurality of fourth transmitting electrodes in the second transmitting electrode group.