Patent ID: 8654108

Claim:
A liquid crystal display device, comprising: a substrate; a pixel circuit formed in a display region that is a region on the substrate provided for image display; a plurality of scanning signal lines that are formed in the display region and that constitute a part of the pixel circuit; and a scanning signal line driver circuit that is formed in a region outside of the display region and that includes a shift register made of a plurality of bistable circuits connected in series with each other, the plurality of bistable circuits each having a first state and a second state and turning to the first state sequentially in accordance with a plurality of clock signals received from the outside, the scanning signal line driver circuit selectively driving the plurality of scanning signal lines, wherein the substrate has a layered structure that includes a first metal film that forms a wiring pattern including source electrodes of thin film transistors that are provided in the pixel circuit and in the scanning signal line driver circuit, a second metal film that forms a wiring pattern including gate electrodes of the thin film transistors, and a third metal film that is formed in the region outside of the display region, and wherein the third metal film is electrically connected to at least one of the first metal film and the second metal film through a contact disposed in the region outside of the display region.