A method for fabricating a liquid crystal display panel is provided. A thin film transistor array substrate and a color filter array substrate are formed. The thin film transistor array substrate includes a screen region having gate lines, data lines, thin film transistors, and pixel electrodes; a pad region having gate pads, an overetch prevention pattern formed overlapped with a gate insulating film in an outer portion of each gate pad, and data pads; data pad protection electrodes each on a respective data pad, and a protection film on an entire surface of the screen region and the pad region. The thin film transistor array substrate and the color filter array substrate are bonded together so that the pad region remains uncovered. Also, a portion of the protection film and the overetch prevention pattern of the pad region are etched to partially expose the gate pads and the data pad protection electrodes, and to form gate holes in the gate insulating film over corresponding gate pads.