Patent ID: 8895987

Claim:
An array substrate for a fringe field switching mode liquid crystal display device, comprising: a substrate including a display area and a non-display area; a gate line and a gate pad electrode on the substrate, the gate line extending along a first direction in the display area, the gate pad electrode disposing in the non-display area; a common line on the substrate and parallel to the gate line; a data line extending along a second direction in the display area and a data pad electrode disposing in the non-display area, the data line crossing the gate line to define a pixel region; a thin film transistor electrically connected to the gate and data lines; a first passivation layer covering the thin film transistor and the data line; a second passivation layer on the first passivation layer and having a flat top surface, the second passivation layer having a first thickness in the display area and a second thickness in the non-display area, the second thickness being smaller than the first thickness; a common electrode on the second passivation layer, the common electrode having a first opening corresponding to the thin film transistor and connected to the common line through a common contact hole; a third passivation layer on the common electrode; and a pixel electrode, a gate auxiliary pad electrode and a data auxiliary pad electrode on the third passivation layer, the pixel electrode connected to the drain electrode and including second bar shaped openings in the pixel region, the gate auxiliary pad electrode connected to the gate pad electrode, the data auxiliary pad electrode connected to the data pad electrode.