Display device
A display device is capable of detecting defects of a PCB, the display device including: 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; signal lines disposed on the printed circuit board; and an inspection portion connected to signal lines. The inspection portion includes: a power line connected to one point of at least two signal lines 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.
1. 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; and
an inspection portion connected to the plurality of signal lines,
wherein the inspection portion comprises:
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,
wherein the first resistor and the second resistor are connected in parallel with different resistance values.
2. The display device of claim 1 , wherein the inspection signal is a direct current voltage.
3. The display device of claim 1 , further comprising:
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, and
a fourth switch connected between the second resistor and the signal detection line.
4. The display device of claim 1 , further comprising a plurality of electric elements disposed on the printed circuit board and connected to the plurality of signal lines.
5. The display device of claim 4 , wherein each of the plurality of electric elements is one of a resistor, an inductor and a capacitor.
6. The display device of claim 1 , wherein the inspection portion further comprises at least one switch connected to the power line.
7. The display device of claim 1 , wherein the inspection portion further comprises at least one switch connected to the signal detection line.
8. The display device of claim 1 , wherein the printed circuit board is bent along at least one side surface of the display panel.
9. The display device of claim 1 , wherein the printed circuit board comprises at least one material of kapton, polyethersulphone, polycarbonate, polyimide, polyethylene terephthalate, polyethylenenaphthalate, polyacrylate and fiber reinforced plastic.
10. The display device of claim 1 , further comprising a backlight assembly providing a light to the display panel.
11. 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.