Patent ID: 7626198

Claim:
A display device comprising: an insulating substrate; a nonlinear element formed over the insulating substrate; a pixel electrode electrically connected to the nonlinear element; an orientation film over and in contact with the pixel electrode; a liquid crystal formed over the pixel electrode; and a counter substrate formed over the liquid crystal so as to face the insulating substrate; wherein the nonlinear element comprises: a first electrode formed over the insulating substrate, a first layer including a first composite material containing an organic compound and an inorganic compound, formed over the first electrode, a second layer including a second composite material containing an organic compound and an inorganic compound, formed over the first layer, and a second electrode formed over the second layer, wherein a concentration ratio between the organic compound and the inorganic compound of the second layer is different from a concentration ratio between the organic compound and the inorganic compound of the first layer.