Patent ID: 11948947
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A display device comprising:
a substrate comprising a display area and a peripheral area surrounding the display area;
a plurality of pixel circuit portions and a plurality of signal lines disposed in the display area; and
a driving circuit portion disposed in the peripheral area and connected with the plurality of signal lines,
wherein the driving circuit portion comprises a first transistor including a first active pattern disposed on the substrate, a first gate insulation layer that is disposed on the first active pattern, a first gate electrode extending in a first direction and disposed on the first gate insulation layer, a dummy insulation layer spaced apart from the first gate insulation layer on the first active pattern, and a dummy electrode extending in a first direction and disposed on the dummy insulation layer and spaced apart from the first gate electrode in the first direction and on the first active pattern,
wherein the dummy electrode comprises a same material as the first gate electrode and has a maximum width smaller than a maximum width of the first gate electrode, and wherein the dummy insulation layer comprises a same material as the first gate insulation layer and has a maximum width smaller than a maximum width of the first gate insulation layer,
wherein the first gate electrode and the dummy electrode are disposed between a source electrode of the first transistor connected to the first active pattern and a drain electrode of the first transistor connected to the first active pattern,
wherein the first gate insulation layer and the dummy insulation layer are spaced apart from one another in the first direction, and an additional insulation layer is disposed in a gap between the first gate insulation layer and the dummy insulation layer.