Patent ID: 11955558
Assignee: SHARP KABUSHIKI KAISHA
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A display device, comprising:
a first transistor; a second transistor; a first inorganic insulating film; and a second inorganic insulating film, all of which are provided above a substrate,
the first transistor including: a crystalline silicon semiconductor layer; a first gate insulating film provided on the crystalline silicon semiconductor layer; and a first gate electrode provided on the first gate insulating film, and positioned across the first gate insulating film from the crystalline silicon semiconductor layer,
the second transistor including: an oxide semiconductor layer; a second gate insulating film provided on the oxide semiconductor layer; and a second gate electrode provided on the second gate insulating film, and positioned across the second gate insulating film from the oxide semiconductor layer,
the first inorganic insulating film being provided on the first gate insulating film and the first gate electrode, and being positioned below the oxide semiconductor layer,
the second inorganic insulating film being provided on the first inorganic insulating film and the oxide semiconductor layer, and being positioned above the second gate electrode,
the first gate insulating film and the first inorganic insulating film being provided with a first contact hole,
the second inorganic insulating film being provided with a second contact hole surrounding the first contact hole in plan view, and
the first contact hole and the second contact hole being provided with a connection wire, and being in shared use between the first transistor and the second transistor, the connection wire electrically connecting together one of conductor regions of the crystalline silicon semiconductor layer in the first transistor and one of conductor regions of the oxide semiconductor layer in the second transistor.