Patent ID: 7079125

Claim:
A display device driving circuit for use with a display device having a display section including sub-pixels arranged in a matrix pattern and a plurality of signal lines for supplying image-forming signals to the sub-pixels, the display device driving circuit comprising: voltage supply lines for transferring the image-forming signals to the plurality of signal lines; switches for turning ON/OFF the transfer of the image-forming signals to the voltage supply lines; and shorting means for electrically shorting one of the voltage supply lines that is connected to an odd-numbered one of the plurality of signal lines with another one of the voltage supply lines that is connected to an even-numbered one of the plurality of signal lines during a predetermined period including a period during which the switches are OFF, wherein the shorting means is configured to be turned OFF autonomously when a polarity of a potential of the voltage supply line connected to the odd-numbered signal line and a polarity of a potential of the voltage supply line connected to the even-numbered signal line are switched around, the shorting means includes: a shorting line for electrically connecting the voltage supply line connected to the odd-numbered signal line to the voltage supply line connected to the even-numbered signal line during the predetermined period; a switching element provided along the shorting line and including a control section; and a control element for performing a control so that the potential of the voltage supply line connected to the odd-numbered signal line is applied to the control section at least during the predetermined period, the switching element is a first MISFET of a first conductivity type, with the control section being a gate electrode of the switching element; and the control element includes a second MISFET of a second conductivity type provided between the voltage supply line connected to the odd-numbered signal line and the gate electrode of the switching element, and a third MISFET of the second conductivity type provided between the voltage supply line connected to the even-numbered signal line and the gate electrode of the switching element.