CPC G02F 1/1368 (2013.01) [G02F 1/136286 (2013.01); H10K 50/8426 (2023.02); H10K 59/131 (2023.02); H10K 71/00 (2023.02); G02F 2202/28 (2013.01); H10K 59/1201 (2023.02)] | 9 Claims |
1. A display device, comprising:
a thin film transistor disposed on a base substrate; and
a signal wiring electrically connected to the thin film transistor, the signal wiring including:
a main conductive layer including copper; and
a capping layer including titanium directly on the main conductive layer, the capping layer overlapping at least a portion of an upper surface of the main conductive layer, wherein
the signal wiring has a taper angle in a range of about 70° to about 90°,
a thickness of the capping layer is in a range of about 100 Å to about 300 Å, and
a thickness of the main conductive layer is in a range of about 1,000 Å to about 20,000 Å.
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