| CPC H10K 59/131 (2023.02) | 20 Claims |
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1. A display device comprising:
a substrate;
a signal line disposed on a surface of the substrate and configured to receive a predetermined voltage signal;
a power auxiliary line configured to receive a first source voltage;
a first driving voltage line configured to receive a first driving voltage greater than the first source voltage;
a first transistor disposed between the signal line and the first driving voltage line, the first transistor including:
a first lower gate electrode electrically connected to the power auxiliary line; and
a first upper gate electrode electrically connected to the signal line; and
an insulating layer covering the first upper gate electrode, wherein
the insulating layer is disposed between the signal line and the power auxiliary line in a third direction extending perpendicular to the surface of the substrate,
the first transistor further includes:
an active layer disposed between the first upper gate electrode and the first lower gate electrode in the third direction, the active layer including a first region, a second region, and a channel region between the first region and the second region;
a first electrode extending from the first driving voltage line and electrically connected to the first region through a first contact hole in the insulating layer; and
a second electrode extending from the signal line and electrically connected to the second region through a second contact hole in the insulating layer, and
the insulating layer includes a third contact hole through which the second electrode and the first upper gate electrode are electrically connected to each other.
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