Gate driver circuit, display device using gate driver circuit, and method of driving display device

A display device, comprising:

• a pixel array including data lines, gate lines, and subpixels;
• a data driver supplying a data signal of an input image to the data lines;
• and
• a gate driver supplying a gate signal to the gate lines through an output node,
• wherein a pixel circuit included in each subpixel includes one or more n-type transistors and one or more p-type transistors,
• wherein the gate driver comprises:
• a first transistor supplying a start signal to a Q node in response to a clock;
• a second transistor adjusting a gate voltage of the first transistor in response to the clock;
• a third transistor adjusting a gate voltage of the second transistor in response to the start signal;
• a fourth transistor turned on depending on a voltage of the Q node and changing a voltage of a QB node;
• a fifth transistor switching a current path between the first transistor and the Q node in response to a first line control signal;
• a sixth transistor turned on depending on the voltage of the Q node and supplying a gate-off voltage to the output node;
• a seventh transistor turned on depending on the voltage of the QB node and supplying a gate-on voltage to the output node;
• an eighth transistor supplying a second line control signal to the QB node in response to a line designation signal indicating a location of a n-th line, where n is a positive integer;
• and
• a ninth transistor supplying a third line control signal to the Q node in response to the line designation signal,
• wherein the first to third line control signals are generated independently of the start signal and the clock.

A method of driving a display device driving gate lines using an edge trigger circuit which receives an input signal and a clock to charge a Q node, generates an output signal at a gate-on voltage depending on a voltage of the Q node, and generates the output signal at a gate-off voltage depending on a voltage of a QB node, the method comprising:

• generating a first line control signal, a second line control signal, and a third line control signal independently of the input signal;
• generating a line designation signal indicating a location of a n-th line, where n is a positive integer, on a screen of the display device;
• blocking a current path between an input node receiving the input signal and the Q node using a transistor that is turned on in response to the first line control signal;
• supplying the second line control signal to the QB node using a transistor that is turned on in response to the line designation signal;
• and
• supplying the third line control signal to the Q node using a transistor that is turned on in response to the line designation signal.