Output circuit, data driver and display device

摘要

A display driver circuit includes an input terminal configured to receive an input signal, an output terminal configured to output an output signal, a slew rate control circuit configured to input the input signal and the output signal, and output a pair of differential input signals based on a voltage difference between the input signal and the output signal; a differential input circuit configured to input the pair of the differential input signals and output a pair of differential output signals, wherein the differential input circuit includes a first current mirror circuit and a second current mirror circuit, and an output circuit configured to input the pair of the differential output signals and output the output signal to the output terminal.

主权项

1. A display driver circuit comprising:
an input terminal configured to receive an input signal; an output terminal configured to output an output signal; a slew rate control circuit configured to input the input signal and the output signal, and output a pair of differential input signals based on a voltage difference between the input signal and the output signal; a differential input circuit configured to input the pair of the differential input signals and output a pair of differential output signals,
wherein the differential input circuit comprises a first current mirror circuit and a second current mirror circuit; and an output circuit configured to input the pair of the differential output signals and output the output signal to the output terminal, wherein the slew rate control circuit comprises:
a charge-boosting circuit configured to supply a current to the first current mirror circuit if the voltage of the input signal is greater than the voltage of the output signal; anda discharge-boosting circuit configured to supply a current to the second current mirror circuit if the voltage of the input signal is less than the voltage of the output signal.