Samsung Display Co., Ltd.

Soon Nyung Park

Wi Jin Nam

Hyeon Jin Kim

An exemplary embodiment of the present disclosure provides a display device including: a substrate including a display area and a non-display area; a COF package overlapped with the non-display area of the substrate; a printed circuit board (PCB) overlapped with the COF package; a plurality of pixels disposed on the display area of the substrate; a plurality of data lines connected to the plurality of pixels; a first crack sensing line disposed on the non-display area of the substrate; a second crack sensing line that extends to be parallel to the first crack sensing line on the non-display area of the substrate and is connected to the first data line of the plurality of data lines; a first dummy wire that is disposed on the COF package and is overlapped with the first crack sensing line and the second crack sensing line; a first anisotropic conductive film disposed between the substrate and the COF package; a first test pattern and a second test pattern disposed on the PCB; a third test pattern that is disposed on the COF package and is overlapped with the first test pattern and the second test pattern; and a second anisotropic conductive film disposed between the COF package and the PCB.

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Incheon, South Korea

Soon Nyung Park