DISPLAY DEVICE

摘要

To suppress a variation in characteristics of a transistor due to a released gas from an organic insulating film so that reliability of a display device is increased. The display device includes a transistor, an organic insulating film which is provided over the transistor in order to reduce unevenness due to the transistor, and a capacitor over the organic insulating film. An entire surface of the organic insulating film is not covered with components (a transparent conductive layer and an inorganic insulating film) of the capacitor, and a released gas from the organic insulating film can be released to the outside from exposed part of an upper surface of the organic insulating film.

主权项

1. A display device comprising:
a pixel portion comprising:
a transistor comprising a semiconductor layer comprising indium, gallium, and zinc;a first inorganic insulating film over the transistor;an organic insulating film over the first inorganic insulating film;a first transparent conductive layer over the organic insulating film;a second inorganic insulating film over the first transparent conductive layer; anda second transparent conductive layer over the first transparent conductive layer with the second inorganic insulating film interposed therebetween, wherein the second transparent conductive layer is electrically connected to one of a source electrode layer and a drain electrode layer of the transistor in an opening, wherein the opening is formed in the organic insulating film and the first inorganic insulating film, wherein an edge portion of the second inorganic insulating film overlaps with the organic insulating film, and wherein the organic insulating film comprises a region which does not overlap with the second inorganic insulating film and the second transparent conductive layer.