Patent ID: 7982844

Claim:
A liquid crystal display device, comprising: a liquid crystal display panel having a plurality of data lines and a plurality of gate lines which cross each other; a data drive circuit which supplies data voltages to the data lines; a data pad lower electrode connected to the data line; a gate drive circuit which supplies scan pulses to the gate lines; a gate pad lower electrode connected to the gate line; a passivation film having a contact hole exposed the data pad lower electrode and the gate pad lower electrode; and first dummy pads which are disposed on a substrate of the liquid crystal display panel at both sides of the data drive circuit, and wherein the data drive circuit is joined onto the substrate with a first anisotropic conductive film and both sides of the first anisotropic conductive film are joined to the first dummy pads, wherein a height of the first dummy pad is not less than a height of the first anisotropic conductive film, wherein a width of the first dummy pad is the same widths of a input and output pads of the gate and data drive circuit, wherein a pitch between the first dummy pad is the same pitches of the input and output pads of the gate and data drive circuit, wherein the first dummy pad is formed of the same metal as the data line and a semiconductor pattern, wherein the semiconductor pattern include a active layer and an ohmic contact layer, wherein a terminal part of first dummy pad is protruded to the outside of the first anisotropic conductive film, wherein the passivation film is completely removed from the first dummy pad.