Patent ID: 8106864

Claim:
A liquid crystal display device comprising: a display panel displaying an image and including a plurality of gate lines and a plurality of data lines arranged thereon; a data driver supplying the data lines of the display panel with data signals corresponding to the image; and a gate driver formed on the display panel and having a plurality of shift registers sequentially shifting a start pulse to be applied to the gate lines, each of the shift registers including an output portion with first and second dual gate transistors, wherein the first dual gate transistor includes: first and second gate electrodes responsive to a voltage on a first node, a source electrode receiving a clock signal, and a drain electrode connected to the respective gate line applying the clock signal from the source electrode to the respective gate line according to the voltage on the first node, and the second dual gate transistor includes: first and second gate electrodes responsive to a voltage on a second node, a drain electrode receiving a first source voltage, and a source electrode applying the first source voltage on the drain electrode to the respective gate line according to the voltage on the second node; and a control portion controlling the voltages on the first and second nodes.