Amplifier circuit and display apparatus including the same

A display apparatus comprising:

• a display panel which displays an image;
• a gate driver which provides a gate signal to the display panel;
• a data driver including an amplifier circuit which outputs a data voltage to the display panel, the amplifier circuit comprising:
• a differential input terminal which includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage;
• a first power supplier which supplies a bias current to the differential input terminal;
• an amplifier which receives an output current of the first differential pair and an output current of the second differential pair and applies an amplified current to an output node;
• and
• a current redistributor which receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal;
• and
• a driving controller which provides a first control signal to the gate driver, and provides a second control signal and a data signal to the data driver,
• wherein only one of the first differential pair and the second differential pair can be turned off and the redistribution current is provided to the other one of the first differential pair and the second differential pair turned on to maintain a transconductance in all input voltage ranges of the input voltage.