Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.

Abstract: Provided is a compensation circuit for an operational amplifier including a primary pole. The compensation circuit includes: a control circuit; and a compensation capacitor including a first terminal connected to the primary pole, and a second terminal connected to an output terminal of the control circuit. The control circuit includes: a pull-up module including a control terminal connected to a second control signal terminal, an input terminal connected to an input power supply, and an output terminal connected to a first control node being the output terminal of the control circuit; a pull-down module including a control terminal connected to a first control signal terminal, and an output terminal connected to ground; and an input transistor including a control terminal connected to the primary pole, an input terminal connected to a first control node, and an output terminal connected to an input terminal of the pull-down module.

Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a pixel unit which includes an operating current generating module and a light emission control module. The operating current generating module has a gate voltage terminal and is configured to generate an operating current according to a voltage of the gate voltage terminal. The light emission control module is connected in series with the operating current generating module and configured to control whether to provide the operating current to a light emitting device according to a light emission control signal. The driving control circuit includes: a data current module, configured to provide a data current and to input the data current to the gate voltage terminal; and a current adjusting module, configured to control whether to input a compensation current to the gate voltage terminal according to a current value of the operating current.