Patent ID: 8558826

Claim:
A driving circuit for a display device for selectively outputting a driving voltage positive or negative with respect to a given reference voltage of the display device in accordance with an image signal, comprising: an input stage circuit; and an output stage circuit for outputting a driving voltage between a given high voltage and the given reference voltage or a driving voltage between the given reference voltage and a given low voltage in accordance with a pair of output stage control signals output from the input stage circuit, wherein the output stage circuit includes: a high-voltage-side transistor and a low-voltage-side transistor connected in series to each other; a high-voltage-side voltage supplying circuit for selectively supplying the high voltage or the given reference voltage to the high-voltage-side transistor; and a low-voltage-side voltage supplying circuit for selectively supplying the given reference voltage or the low voltage to the low-voltage-side transistor, and the input stage circuit includes: a P-channel transistor and an N-channel transistor connected in parallel to each other and connected, at both ends thereof, respectively to control terminals of the high-voltage-side transistor and the low-voltage-side transistor; and a bias supplying circuit for applying bias voltages to control terminals of the P-channel transistor and the N-channel transistor, said bias voltages corresponding to: a first selection mode in which the high voltage is supplied to the high-voltage-side transistor and the reference voltage is supplied to the low-voltage-side transistor, and a second selection mode in which the reference voltage is supplied to the high-voltage-side transistor, and the low voltage is supplied to the low-voltage-side transistor, and wherein bias voltages of said first selection mode are different from bias voltages of said second selection mode.