Patent ID: 7639247
Filing Date: 2009-12-29
Classification: G09G

Abstract:
1. An output circuit suitable in a driving circuit for a display device, the output circuit including: a first operation amplifier, receiving a first input voltage; a second operation amplifier, receiving a second input voltage; a first transmission gate, passing an output signal from the first operation amplifier under control of a first enable signal; a second transmission gate, passing an output signal from the second operation amplifier under control of a second enable signal; a first switch, passing an output signal from the first transmission gate under control of a first switch control signal for generating an output signal of the output circuit; a second switch, passing an output signal from the second transmission gate under control of a second switch control signal for generating the output signal of the output circuit; a third switch, pulling up the output signal from the second transmission gate under control of a third switch control signal; and a fourth switch, pulling down the output signal from the first transmission gate under control of a fourth switch control signal.