DISPLAY DEVICE

摘要

A display device including: a circuit board including a signal controller, a display panel including a plurality of driving IC circuits, a flexible printed circuit board coupling the circuit board to the display panel, and a plurality of signal lines respectively coupled to the signal controller and the plurality of driving IC circuits through the circuit board, the flexible printed circuit board, and the display panel. Each of the plurality of signal lines includes a COG resistance, a FOG resistance, and a FOB resistance. The signal controller applies a first signal to any one of the plurality of driving IC circuits, the any one of the plurality of driving IC circuits short-circuits the respectively coupled signal line when the first signal is received, and the signal controller measures the COG resistance, the FOG resistance, and the FOB resistance when the respectively coupled signal line is short-circuited.

主权项

1. A display device, comprising:
a circuit board comprising a signal controller; a display panel comprising a plurality of driving IC circuits; a flexible printed circuit board configured to couple the circuit board to the display panel; and a plurality of signal lines respectively coupled to the signal controller and the plurality of driving IC circuits through the circuit board, the flexible printed circuit board, and the display panel, wherein each of the plurality of signal lines comprises a COG resistance by coupling of the display panel and the driving IC circuit, a FOG resistance by coupling of the display panel and the flexible printed circuit board, and a FOB resistance by coupling of the flexible printed circuit board and the circuit board, the signal controller is configured to apply a first signal to any one of the plurality of driving IC circuits, the any one of the plurality of driving IC circuits configured to short-circuit the respectively coupled signal line when the first signal is received, and the signal controller is further configured to measure the COG resistance, the FOG resistance, and the FOB resistance when the respectively coupled signal line is short-circuited.