Provided is a liquid crystal display including, on an insulation substrate having a polygonal display area and a peripheral area surrounding the display area a first signal line, a second signal line crossing the first signal line, a plurality of switching elements connected to the first signal line and the second signal line and disposed in the display area, a plurality of pixel electrodes each connected to the switching element and disposed in the display area, and a shielding conductor disposed in the peripheral area and extending along at least one side of the polygonal display area.