Patent ID: 11973173
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A display device comprising:
a substrate including:
a display region including a display structure,
a pad region through which an electrical signal is provided to the display region;
a plurality of test pads in the pad region and through which electrical test signals are provided to the pad region from outside the substrate; and
a plurality of connection wires in the pad region and through which the electrical test signals are provided from the plurality of test pads,

a driving integrated circuit which contacts the substrate at the pad region thereof, the driving integrated circuit including:
a plurality of test bumps which are connected to the plurality of test pads by the plurality of connection wires and receive the electrical test signals from the plurality of test pads, and
a circuit wire commonly connected to each of the plurality of test bumps;

wherein the plurality of connection wires of the substrate includes:
a first connection wire which connects a first test pad among the plurality of the test pads of the substrate to a first test bump among the plurality of test bumps of the driving integrated circuit; and
a plurality of second connection wires which are different from the first connection wire and respectively connects a plurality of second test pads different from the first test pad among the plurality of the test pads of the substrate to a same second test bump different from the first test bump among the plurality of test bumps of the driving integrated circuit.