Liquid crystal display device and method of fabricating the same
View Patent ↗A liquid crystal display device includes a common electrode on an upper substrate, a gate driver on a lower substrate facing an upper substrate, an insulating pattern on the common electrode, and a conductive sealant for bonding the upper and lower substrates together that overlaps the gate driver.
1. A liquid crystal display device, comprising:
a common electrode on an upper substrate;
a gate driver on a lower substrate facing an upper substrate;
an insulating pattern on the common electrode; and
a conductive sealant for bonding the upper and lower substrates together that overlaps the gate driver,
wherein the gate driver includes:
at least one signal line group on the lower substrate to supply power signals and gate control signals; and
a plurality of thin film transistors connected to the at least one signal line group,
a gate insulating film covering the at least one signal line group;
an additional connection pattern on the gate insulating film;
a passivation film covering the gate insulating film and the thin film transistor;
a first contact hole penetrating the gate insulating film and the passivation film to expose the at least one signal line group;
a second contact hole penetrating the passivation film to expose the thin film transistor;
third and fourth contact holes penetrating the passivation film to expose the additional connection pattern;
a first connection pattern on the passivation film for connecting the at least one signal line group to the additional connection pattern through the first contact hole and the third contact hole; and
a second connection pattern formed on the passivation film for connecting the thin film transistor to the additional connection pattern through the second contact hole and the fourth contact hole.
2. The liquid crystal display device according to claim 1 , wherein the lower substrate has a connecting part connected to the common electrode by the conductive sealant.
3. The liquid crystal display device according to claim 2 , wherein the conductive sealant includes a conductive ball that connects the connecting part to the common electrode on the upper substrate.
4. The liquid crystal display device according to claim 1 , wherein the thickness of the insulating pattern is equal to or less than a cell gap between the upper substrate and the lower substrate.
5. The liquid crystal display device according to claim 1 , wherein the insulating pattern is overlapped by the first and second connection patterns.
6. The liquid crystal display device according to claim 1 , wherein the conductive sealant overlaps the gate driver.
7. A liquid crystal display device, comprising:
a common electrode on an upper substrate;
a connection pattern on a lower substrate;
an insulating pattern on the common electrode corresponding to the connection pattern; and
a conductive sealant overlapping the connection pattern for bonding the upper substrate and the lower substrate together,
wherein the insulating pattern prevents a short circuit from between the common electrode and the connection pattern.
8. The liquid crystal display device according to claim 7 , wherein the conductive sealant includes a conductive ball that contacts the connection pattern on the lower substrate and the insulating pattern on the common electrode of the upper substrate.