Patent ID: 11899328
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A display device comprising:
a pixel portion over a substrate, the pixel portion comprising:
a first transistor comprising:
a first oxide semiconductor film comprising a channel formation region;
a source electrode; and
a drain electrode;

a first insulating film over the first transistor;
a second insulating film over and in contact with the first insulating film;
a third insulating film over and in contact with the second insulating film; and
a pixel electrode in contact with the third insulating film; and

a driver circuit portion over the substrate, the driver circuit comprising:
a second transistor comprising a second oxide semiconductor film comprising a channel formation region,

wherein the first insulating film comprises an inorganic insulating material,
wherein the second insulating film comprises an organic insulating material,
wherein the third insulating film comprises an inorganic insulating material,
wherein the first insulating film is in contact with a top surface of the first oxide semiconductor film and a top surface of at least one of the source electrode and the drain electrode,
wherein the pixel electrode is in contact with one of the source electrode and the drain electrode,
wherein the third insulating film covers a side surface of the first insulating film, and
wherein the third insulating film does not overlap with the second transistor.