Display device

A display device comprising:

• a display panel on which a driving integrated circuit is mounted;
• a printed circuit board disposed on at least one edge of the display panel and connected to the driving integrated circuit;
• a plurality of signal lines disposed on the printed circuit board;
• an inspection portion connected to the plurality of signal lines, the inspection portion comprising a power line connected to one point of at least two signal lines of the plurality of signal lines to apply an inspection signal, the at least two signal lines including a first signal line and a second signal line, a first resistor connected to the first signal line, a second resistor connected to the second signal line, and a signal detection line connected to the first resistor and the second resistor to detect a change value of the inspection signal;
• a first switch connected between the power line and the first resistor;
• a second switch connected between the first resistor and the signal detection line;
• a third switch connected between the power line and the second resistor;
• a fourth switch connected between the second resistor and the signal detection line;
• a third signal line and a fourth signal line connected to the power line;
• a third resistor connected to the third signal line between the power line and the signal detection line;
• a fourth resistor connected to the fourth signal line between the power line and the signal detection line;
• a fifth switch connected between the power line and the third resistor;
• a sixth switch connected between the third resistor and the signal detection line;
• a seventh switch connected between the power line and the fourth resistors;
• and
• an eighth switch connected between the fourth resistor and the signal detection line.