Patent ID: 8520178

Claim:
A display device comprising: a transistor including a gate electrode layer, a gate insulating layer, a first wiring layer, a second wiring layer and a semiconductor layer; an insulating layer; a first electrode layer electrically connected to one of the first wiring layer and the second wiring layer through an opening formed in the insulating layer; a second electrode layer; and a twist ball colored in black and white between the first electrode layer and the second electrode layer, wherein a direction of the twist ball is capable of being controlled by a potential generated between the first electrode layer and the second electrode layer, wherein at least one of the gate electrode layer, the first wiring layer, the second wiring layer, the first electrode layer and the second electrode layer is configured by a contour portion having a frame shape and an inner portion inside the contour portion, wherein the contour portion having the frame shape is formed only at a lateral boundary of the inner portion, and wherein the contour portion does not extend to and contact with inside of the inner portion.