Patent ID: 7518666

Claim:
A liquid crystal display device, comprising: a gate line; a data line crossing the gate line thereby defining pixel area; a gate insulating film between the gate and data lines; a thin film transistor connected to the gate and data lines; a semiconductor layer defining a channel of each thin film transistor; a passivation film on the data line and on the thin film transistor; a pixel hole corresponding to a pixel area, wherein the pixel hole passes through the passivation film and at least partially through the gate insulating film; and a pixel electrode within the pixel hole, wherein a portion of the pixel electrode is on the gate insulating film and overlaps a portion of the gate line to form a storage capacitor, wherein a thickness of the gate insulating film outside the pixel hole is greater than a thickness of the gate insulating film on the portion of the gate line forming the storage capacitor within the pixel hole.