A liquid crystal display panel including a thin film transistor array substrate structure including, a substrate, a gate line and a data line disposed on the substrate and insulated from each other by a gate insulating pattern, a thin film transistor provided at intersection of the gate and data lines, a protective film disposed to protect the thin film transistor, and a pad structure connected to a respective one of the gate line and data line, the pad structure including a transparent conductive film and a data metal layer; and a color filter array substrate structure joined with the thin film transistor array substrate structure, wherein the protective film is disposed within an area where the color filter array substrate structure overlaps with the thin film transistor array substrate structure, and exposing either the data metal layer or the transparent conductive film along a side portion of the substrate.