Patent ID: 7994511

Claim:
A semiconductor structure, comprising: a substrate comprising a displaying region and a circuit driving region, wherein the display region has a first area and a second area spaced apart by a gap, and a third area located between the first area and the second area; a first polysilicon region formed on the first area of the substrate; a second polysilicon region formed on the second area of the substrate and spaced apart from the first polysilicon region by the gap; an insulating layer formed on the substrate to cover the first polysilicon region and the second polysilicon region, wherein the portion of the insulating layer above the first and second areas is higher than the portion of the insulating layer above the third area; and a third polysilicon region formed on the insulating layer and disposed above the gap, wherein a direction of a grain boundary of the third polysilicon region intersects a direction of the gap at an angle in a range from 5 degree to 85 degree.