Patent ID: 7817235

Claim:
A display device comprising: a display panel including a plurality of gate lines, a plurality of data lines, a plurality of switching elements connected to the gate lines and the data lines, a plurality of pixel electrodes connected to the switching elements, and a plurality of lead lines each including a first contact portion disposed on a first end thereof and a second contact portion disposed on a second end thereof; and a driving circuit mounted on the display panel and connected to the second contact portions of the lead lines for receiving signals from an external device and to the data lines or the gate lines for applying data voltages or gate signals, a flexible printed circuit film attached to the display panel and connected to the lead lines, wherein the flexible printed circuit film transmits control signals and image data to the driving circuit through the lead lines; wherein each of the lead lines has a first portion having a first width and being connected to the first contact portion and a second portion connected to the second contact portion and having a second width larger than a predetermined value and the first width of at least one of the lead lines is smaller than the second width of the at least one of the lead lines, and wherein each of the second portions of the lead lines have substantially a same length as each other.