A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second lines formed on the substrate, intersecting the first signal line, and including a plurality of curved portions having at least two curve points and a plurality of intermediate portions, the curved portions and the intermediate portions alternately connected; a plurality of pixel electrodes located substantially in areas defined by the first and the second signal lines; and a plurality of thin film transistors connected to the first and the second signal lines and the pixel electrodes.