Liquid crystal display device and fabrication method thereof

1. A liquid crystal display device comprising:

first and second substrates coupled to each other having a dummy region and a panel region;

at least one first seal in the dummy region;

a second seal along a peripheral portion of the panel region, wherein the second seal has a liquid crystal injection port; and

a liquid crystal layer between the first and second substrates,

wherein a cell gap-determining thickness of the first seal is substantially same as a cell gap-determining thickness of the second seal and the first seal is on a region including a gate electrode layer, a gate insulation layer and a passivation film on the first substrate.

2. The device of claim 1 , wherein the second seal is on a region including a gate electrode layer, a gate insulation layer and a passivation film, wherein the region is at least one of a gate pad side, the liquid crystal injection port side and a open side of a panel region.

3. The device of claim 1 , wherein the second substrate includes:

a black matrix layer on a substrate;

a color filter layer on the black matrix layer; and

a common electrode on the color filter layer.

4. The device of claim 1 , wherein the first substrate between first seals of two dummy regions is exposed.

5. A method for fabricating a liquid crystal display device comprising:

providing first and second substrates having a dummy region and a panel region;

forming an insulation layer on the first substrate;

forming a passivation layer on the insulation layer;

exposing the first substrate by removing a portion of both the insulation layer and the passivation layer in the dummy region between where at least one first seal will be formed;

forming at least one first seal in the dummy region;

forming a second seal along a peripheral portion of the panel region having a liquid crystal injection port; and

forming a liquid crystal layer between the first and second substrates,

wherein a cell gap-determining thickness of the first seal is substantially same as a cell gap-determining thickness of the second seal.

6. The method of claim 5 , further comprising fanning a thin film transistor, a gate/data pads and a pixel electrode on the first substrate.

7. The method of claim 5 , further comprising:

forming a black matrix layer on the second substrate;

forming a color filter layer on the black matrix layer; and

forming a common electrode on the color filter layer.

8. A method for fabricating a liquid crystal display device comprising:

preparing first and second substrates having a panel region and a dummy region;

forming gate pads, data pads and a thin film transistor array on the first substrate in the panel region;

forming a color filter layer, a black matrix layer and a common electrode on the second substrate in the panel region;

forming a seal pattern with a liquid crystal injection port at one side of the panel region along a peripheral portion of the panel region;

forming an insulation layer on the first substrate;

forming a passivation layer on the insulation layer;

removing a portion of both the insulation layer and the passivation layer at a first area of the first substrate;

forming two dummy seals on the passivation layer in the dummy region such that the first area is between the dummy seals; and

forming a liquid crystal layer between the first and second substrates.

9. The method of claim 8 , further comprising:

forming a gate electrode on the first substrate;

forming a gate insulation layer on the gate electrode;

forming a passivation film on the gate insulation layer; and

etching the gate insulation layer and the passivation film between the dummy seals.

10. The method of claim 8 , further comprising:

forming a gate electrode layer at a gate pad region corresponding to the seal pattern;

forming a gate insulation layer on the gate electrode; and

forming a passivation film on the gate insulation layer.

11. The method of claim 8 , further comprising:

forming a gate insulation layer at a source pad region corresponding to the seal pattern;

forming an active layer on the gate insulation layer;

forming source and drain electrodes on the active layer; and

forming a passivation layer on the source and drain electrodes.

12. The method of claim 8 , wherein a cell gap-determining thickness of the seal pattern is substantially same as a cell gap-determining thickness of the dummy seal.

13. A liquid crystal display device comprising: first and second substrates coupled to each other having dummy regions and panel regions;

first seals respectively positioned in the dummy regions, wherein each of the first seals is on a region including a gate electrode layer, a gate insulation layer and a passivation film on the first substrate;

a second seal along a peripheral portion of the panel region, wherein the second seal has a liquid crystal injection port; and

a liquid crystal layer between the first and second substrates,

wherein the first substrate is exposed between a pair of first seals of two of the dummy regions.

14. The device of claim 13 , wherein the second seal is on a region including a gate electrode layer, a gate insulation layer and a passivation film, wherein the region is at least one of a gate pad side, the liquid crystal injection port side and an open side of the panel region.

15. The device of claim 13 , wherein the second substrate includes:

a black matrix layer on a substrate;

a color filter layer on the black matrix layer; and

a common electrode on the color filter layer.

16. The device of claim 13 , wherein a cell gap-determining thickness of the first seals are substantially the same as a cell gap-determining thickness of the second seal.