Patent ID: 8717338

Claim:
A display driving circuit comprising: a buffer section configured to buffer a plurality of pixel driving signals outputted from a plurality of DACs; an N-dot switch circuit configured to select paths of the plurality of pixel driving signals outputted from the buffer section in response to a first path selecting signal or a second path selecting signal that is determined depending upon a dot inversion method, and switch the paths to a plurality of output terminals; a charge sharing switch circuit configured to share charges among the plurality of output terminals in response to a charge sharing control signal, wherein the charge sharing switch circuit comprises a plurality of charge sharing switches which are turned ON in response to the charge sharing control signal; and a sharing voltage level control switch circuit configured to control charge sharing between the plurality of output terminals and a voltage level upon charge sharing, in response to a sharing voltage level control signal, wherein the sharing voltage level control switch circuit comprises a plurality of sharing voltage level control switches which are turned ON in response to the sharing voltage level control signal, wherein, in a first charge sharing interval, the charge sharing switches are turned ON, and the voltage level of each of the output terminals is approximately a middle voltage level CSM which distinguishes a first polarity region from a second polarity region, and wherein, in a second charge sharing interval, the charge sharing switches are turned OFF, the sharing voltage level control switches are turned ON, the voltage level of each even output terminal in the output terminals is approximately an upper voltage level CSH which is higher than the middle voltage level CSM, and the voltage level of each odd output terminal in the output terminals is approximately a lower voltage level CSL which is lower than the middle voltage level CSM.