Patent ID: 8174635
Filing Date: 2012-05-08
Classification: G02F,H01L

Abstract:
1. A liquid crystal display device comprising: a plurality of gate lines and a plurality of data lines arranged on a substrate and unit pixels defined by crossing points of the gate lines and the data lines, the unit pixels located in a display region; wherein each unit pixel includes a pixel organic thin film transistor (TFT); a pixel electrode connected to the pixel organic TFT; a common voltage line in a non-display region of the substrate; a plurality of electrostatic discharge (ESD) protection elements in the non-display region, each ESD protection element being electrically coupled to the data line or the gate line and the common voltage line, wherein each ESD protection element comprises: a first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each having a gate electrode, a source electrode and a drain electrode; and wherein the first ESD organic TFT and the second ESD organic TFT are connected in parallel and the third ESD organic TFT is connected between the first ESD organic TFT and the second ESD organic TFT, wherein each ESD organic TFT include an organic semiconductor and an auxiliary electrode on the organic semiconductor layer, wherein the gate electrode is electrically connected to the auxiliary electrode through a contact hole.