Patent ID: 7253864

Claim:
An active matrix display device, comprising: a substrate; and a plurality of pixel portions disposed in a surface of the substrate in a matrix manner along a first direction and a second direction transverse to the first direction, wherein a first group of the plurality of pixel portions is arranged along the first direction, wherein a second group of the plurality of pixel portions is arranged along the first direction and adjacent to the first group of the plurality of pixel portions along the second direction, wherein a first gate wiring and a second gate wiring are extended along the first direction and are juxtaposed along the second direction in an area between the first group of the plurality of pixel portions and the second group of the plurality of pixel portions, wherein the second gate wiring is adjacent to the first gate wiring and is arranged close to the second group of the plurality of pixel portions, wherein a plurality of data wirings each extended along the second direction are juxtaposed along the first direction and are spaced from each other by a pair of one of the pixel portions belonging to the first group and one of the pixel portions belonging to the second group adjacent to each other along the second direction, wherein each of the first group of the plurality of pixel portions and the second group of the plurality of pixel portions is provided with a pixel electrode and an active element including a semiconductor film, a source electrode connected to one of ends of the semiconductor film and the pixel electrode, a drain electrode connected to another of the ends of the semiconductor film and one of the plurality of data wirings, a gate electrode disposed above the semiconductor film, and an interlayer insulating films disposed between the semiconductor film and the gate electrode, wherein the semiconductor film is formed of an aggregate of single crystals each extended in the first direction between the ends of the semiconductor film so as to change grain boundaries therebetween to be continuous in the first direction, wherein the active element provided in each of the first group of the pixel portions is arranged close to the second group of the plurality of pixel portions with respect to the each of the first group of the pixel portions, and wherein the active element provided in each of the first group of the pixel portions is arranged close to the second group of the plurality of pixel portions with respect to the each of the first group of the pixel portions, and has the gate electrode extended from the first gate wiring toward the each of the first group of the pixel portions, and wherein the active element provided in each of the second group of the pixel portions is arranged close to the first group of the plurality of pixel portions with respect to the each of the second group of the pixel portions, and has the gate electrode extended from the second gate wiring toward the each of the second group of the pixel portions.