| CPC H10H 29/142 (2025.01) [H10H 20/01 (2025.01); H10H 20/821 (2025.01); H10H 20/84 (2025.01); H10H 20/8515 (2025.01)] | 17 Claims |
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1. A display device comprising:
a first substrate comprising a display area and a non-display area around the display area;
an active material layer on the first substrate, the active material layer comprising a channel area, a first doped area on one side of the channel area, and a second doped area on another side of the channel area;
a gate insulating layer on the active material layer;
a first conductive layer on the gate insulating layer, the first conductive layer comprising a signal application electrode and a gate electrode to overlap the channel area;
an interlayer insulating layer on the first conductive layer;
a via layer on the interlayer insulating layer;
a second conductive layer on the via layer, the second conductive layer comprising a first electrode electrically connected to the first doped area through a first contact hole passing through the via layer and the interlayer insulating layer, a second electrode electrically connected to the second doped area through a second contact hole passing through the via layer and the interlayer insulating layer, and a third electrode electrically connected to the signal application electrode through a third contact hole passing through the via layer and the interlayer insulating layer;
a first insulating layer on the second conductive layer;
a light emitting element on the first insulating layer of the display area; and
a third conductive layer on the light emitting element, the third conductive layer being connected to the light emitting element and comprising a first contact electrode electrically connected to the second electrode through a first contact electrode hole passing through the first insulating layer, and a second contact electrode electrically connected to the third electrode through a second contact electrode hole passing through the first insulating layer,
wherein the non-display area further comprises a pad area,
the first conductive layer further comprises a first pad part in the pad area and a second pad part between the first conductive layer and the interlayer insulating layer, the second pad part being on an entire upper surface of the first pad part,
the first pad part comprises an opaque conductive material, and
the second pad part comprises a transparent conductive material.
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