LEVEL SHIFTER AND SOURCE DRIVER INTEGRATED CIRCUIT

摘要

The present embodiments relate to an advanced level shifter having a circuit structure which enables miniaturization and high performance, a source driver integrated circuit and a gate driver integrated circuit, and a display device which include the same.

主权项

1. A level shifter comprising:
first and second N-channel transistors configured to receive an input signal of a low voltage level and an inversion input signal obtained by inverting the input signal; first and second high voltage output transistors configured to receive a driving voltage and output, to first and second output ports, an output signal of a high voltage level corresponding to a voltage level of the driving voltage, and an inversion output signal obtained by inverting the output signal; first and second current control transistors configured to be controlled by a bias voltage and control a current flowing to the first and second high voltage output transistors to be small; and a voltage drop circuit configured to be electrically connected between drain nodes of the first and second N-channel transistors and the first and second output ports, and allow voltage levels of the drain nodes of the first and second N-channel transistors to be lower than voltage levels of the first and second output ports.