Thin film transistor substrate and display device using same

A display device, defining a display area and a peripheral area surrounding the display area, the display device comprising:

• a thin film transistor substrate comprising a base and a plurality of thin film transistors on the base and in the display area, each of the plurality of thin film transistors comprising a gate electrode on the base;
• a first common line on the base and in the peripheral area;
• and
• a storage capacitor line on the base and in the display area;
• a gate insulating layer on the base and covering the first common line, the storage capacitor line, and the gate electrode of each of the plurality of thin film transistors;
• a second common line formed on a side of the gate insulating layer away from the base and in the peripheral area;
• a counter substrate facing the thin film transistor substrate;
• a common electrode layer formed on a side of the counter substrate adjacent to the thin film transistor substrate and in the display area;
• and
• a sealant disposed between the thin film transistor substrate and the counter substrate to seal a liquid crystal layer between the thin film transistor substrate and the counter substrate;
• wherein the first common line, the storage capacitor line, and the gate electrode of each of the plurality of thin film transistors are located in a same layer and defined by a same conductive layer;
• wherein the first common line is in direct contact with the storage capacitor line and electrically coupled to the storage capacitor line;
• wherein conductive particles are embedded in the sealant;
• the common electrode layer is electrically coupled to the second common line by the conductive particles;
• wherein the second common line is electrically insulated from the first common line;
• wherein the first common line surrounds the display area;
• the second common line surrounds the first common line;
• and
• wherein the second common line forms a semi-closed rectangle having an opening, the second common line has an end electrically coupled to a power supply circuit and another end spaced apart from the power supply circuit.