Liquid crystal display device and repairing method thereof

1. A method of repairing a liquid crystal display (LCD) having a first substrate and a second substrate with liquid crystal material disposed therebetween, the method comprising:

forming a hole on a first or second substrate at a position corresponding to a defective pixel, wherein the hole is formed such that a depth of the hole is greater than a remaining thickness of the substrate, wherein the hole is formed such that an observer cannot sense light leakage from the defective pixel in a range of left and right about 60 degrees from the front of the liquid crystal display; and

inserting a wedge into the hole, wherein inserting the wedge comprises inserting a solid object into the hole,

wherein the hole is formed by using a micro-screw,

wherein the hole is formed such that the remaining substrate has a thickness of about 20 μm,

wherein the hole depth is 650 μm or more,

wherein the wedge is made of a solid polymer or a metal with a polymer.

2. The method of claim 1 , wherein inserting the wedge further comprises breaking off and leaving a portion of the object in the hole.

3. The method according to claim 1 , wherein the hole is formed to have a diameter of approximately 20 to 400 μm.

4. A method of repairing a liquid crystal display (LCD) having a first substrate and a second substrate with liquid crystal material disposed therebetween, the method comprising:

forming a hole on a liquid crystal panel at a position corresponding to a defective pixel, wherein the hole is formed such that a depth of the hole is greater than a remaining thickness of the substrate, wherein the hole is formed such that an observer cannot sense light leakage from the defective pixel in a range of left and right about 60 degrees from the front of the liquid crystal display; and

forming a repair pattern in the hole,

wherein the hole is formed by using a micro-screw or micro drill,

wherein the hole is formed such that the remaining substrate has a thickness of about 20 μm,

wherein the hole depth is 650 μm or more,

wherein the repair pattern is a wedge,

wherein the wedge is formed by inserting a solid object into the hole,

wherein the wedge is made of a solid polymer or a metal with a polymer.

5. The method of claim 4 , wherein the defective pixel includes a defect area.

6. The method according to claim 4 , wherein the hole is formed to have an area substantially larger than the defect area.

7. The method according to claim 4 , wherein the repair pattern darkens the defective pixel.

8. The method according to claim 4 , wherein the hole is formed on one or both of first and second substrates.

9. The method according to claim 4 , wherein the hole is formed on an outer surface of the liquid crystal panel.

10. An LCD comprising:

a first substrate on which a pixel electrode and a TFT are formed in a pixel region formed in a matrix pattern;

a second substrate on which a color filter layer and a black matrix are formed, the second substrate facing the first substrate;

a hole formed on an outer surface of the first or second substrate to repair a defective pixel, wherein a depth of the hole is greater than a remaining thickness of the substrate, wherein the hole is formed such that an observer cannot sense light leakage from the defective pixel in a range of left and right about 60 degrees from the front of the liquid crystal display; and

a repair pattern formed in the hole,

wherein the hole is formed by using a micro-screw or micro drill,

wherein the hole is formed such that the remaining substrate has a thickness of about 20 μm,

wherein the hole depth is 650 μm or more,

wherein the repair pattern is a wedge,

wherein the wedge is formed by inserting a solid object into the hole,

wherein the wedge is made of a solid polymer or a metal with a polymer.

11. The method of claim 10 , wherein the defective pixel includes a defect area.

12. The method according to claim 10 , wherein the hole is formed to have an area substantially larger than the defect area.

13. The LCD according to claim 10 , wherein the hole is formed to have a diameter of approximately 20 to 400 μm.

14. The LCD according to claim 10 , wherein the hole is formed at a position corresponding to the defective pixel.

15. The LCD according to claim 10 , wherein the repair pattern blocks light to darken the defective pixel.

16. A method of repairing a defective pixel in a liquid crystal display (LCD) having a first substrate and a second substrate with liquid crystal material disposed therebetween, the method comprising:

determining the size of a defect area in the defective pixel;

forming a hole to a predetermined depth in the first or second substrate, forming said hole at a position corresponding to the defect area in the defective pixel;

forming a repair pattern in the hole,

wherein the predetermined depth of the hole corresponds to the size of defect area, wherein the hole is formed such that a depth of the hole is greater than a remaining thickness of the substrate, wherein the hole is formed such that an observer cannot sense light leakage from the defective pixel in a range of left and right about 60 degrees from the front of the liquid crystal display,

wherein the hole is formed by using a micro-screw or micro drill,

wherein the hole is formed such that the remaining substrate has a thickness of about 20 μm,

wherein the hole depth is 650 μm or more,

wherein the repair pattern is a wedge,

wherein the wedge is formed by inserting a solid object into the hole,

wherein the wedge is made of a solid polymer or a metal with a polymer.

17. The method of claim 16 , wherein the identification angle relating to the depth of the hole and the size of the defect area is less than fifty degrees.