A liquid crystal display device includes substrates, a liquid crystal layer between the substrates, a seal member between the substrates and surrounding the liquid crystal layer, an electrode in a first region of one of the substrates, the first region overlapping a region surrounded by the seal member, a first conductive film in a second region of the one substrate, the second region being a region outside the seal member, a second conductive film in the one substrate and extending from the electrode toward the first conductive film, a first insulating film disposed between the first and second conductive films, including a contact hole in a portion of the second region overlapping the first conductive film, and the first conductive film and the second conductive film being electrically connected to each other through the contact hole, and a second insulating film that covers the contact hole and is moisture-proof.