Gate driver and display device having the same

Abstract

The invention discloses a gate driver and a display device having the same. The gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2020-0060530 filed with the Korean Intellectual Property Office on May 20, 2020, the entire contents of which are incorporated herein by reference. technical field [0003] Some embodiments of the present disclosure relate to a display device including a gate driver. Background technique [0004] The display device includes: a data driver for supplying data signals to the data lines; a scan driver for supplying scan signals to the scan lines; an emission driver for supplying emission control signals to the emission control lines; , scan lines, and emission control lines of pixels. [0005] The data lines are on a different layer from the scan lines and the emission control lines and are positioned to cross the scan lines and the emission control lines. Then, there are parasitic capacitance components between the data line and the scan ...

AI Technical Summary

Problems solved by technology

For example, the low level of the scan signal and / or the emission control signal is changed by the coupling due to the change of the data signal, which may cause brightness deviation such as crosstalk

[0007] In addition, in the initial state of driving the display device, node voltages inside the stages of the scan driver and the emission driver may be unstable, and thus it may be difficult for the pixels to initially emit light with desired brightness.

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