Wire structure of display device
View Patent ↗A wire structure of a display device is disclosed. Undesirable short at upper wires can be repaired through the laser cutting while preventing a damage to the lower wires through the through hole provided at the lower wires of the region where the upper wires are mutually isolated.
1. A wire structure of a display device having a plurality of pixels in which more than two wires are stacked with an insulation film therebetween, comprising:
upper wires formed in substantially whole area of the pixel such that they are isolated from other upper wires formed in other pixel;
lower wires patterned at a region between the upper wires, the lower wires being patterned to have a through hole disposed in the regions between the upper wires neighboring along the elongation direction of a data line of a liquid crystal display device; and
an insulation film formed between the upper wires and the lower wires,
wherein the lower wire is a data line of a liquid crystal display device.
2. The wire structure of claim 1 , wherein the upper wire is a pixel electrode of a liquid crystal display device.
3. The wire structure of claim 2 , wherein the pixel electrode is made of a transparent conductive material.
4. The wire structure of claim 2 , wherein the pixel electrode is made of an ITO material.
5. The wire structure of claim 1 , wherein the data line is made of a translucent conductive material.
6. The wire structure of claim 1 , wherein the insulation film is made of an organic substance of one selected from the group consisting of BCB, SOG and acryl.
7. A wire structure of a display device having a plurality of pixels, comprising:
a plurality of first wire patterns in substantially whole area of the pixel;
a second wire pattern patterned to form a hole; and
an insulating layer between the first wire patterns and the second wire pattern,
wherein the hole is disposed at a portion between adjacent first wire patterns along the elongation direction of a data line of a liquid crystal display device and
wherein the second wire pattern is a data line of a liquid crystal display device.
8. The wire structure of claim 7 , wherein when a short occurs between the first wire patterns, a laser beam is irradiated to a shorted portion of the first wire patterns through the hole to separate the shorted first wire patterns.
9. A liquid crystal display device, comprising:
a substrate;
a plurality of gate lines and data lines to define a plurality of pixels on the substrate, each data line including at least one hole;
a thin film transistor at each pixel;
a passivation layer over the substrate; and
pixel electrodes on the passivation layer respectively in substantially whole area of the plurality of pixels,
wherein the at least one hole is disposed along a portion between the adjacent pixel electrodes in the elongation direction of a data line of a liquid crystal display device.
10. The liquid crystal display device of claim 9 , wherein the thin film transistor includes:
a gate electrode on the substrate;
a gate insulating layer on the gate electrode;
a semiconductor layer on the gate insulating layer; and
a source electrode and a drain electrode on the semiconductor layer.
11. The liquid crystal display device of claim 9 , wherein the pixel electrode is made of a transparent conductive material.
12. The liquid crystal display device of claim 11 , wherein the pixel electrode is made of an Indium Tin Oxide.
13. The liquid crystal display device of claim 9 , wherein the passivation layer is made of an organic substance.
14. The liquid crystal display device of claim 13 , wherein the passivation layer is made of substance selected from the group consisting of BCB, SOG and acryl.
15. The liquid crystal display device of claim 13 , wherein the data line is partially overlapped with the pixel electrode.
16. The liquid crystal display device of claim 9 , wherein if adjacent pixel electrodes include a shorted portion, the shorted portion is separated by a laser-cutting through the hole.
17. A wire structure of a display device having a plurality of pixels in which more than two wires are stacked with an insulation film therebetween, comprising:
upper wires formed in substantially whole area of the pixel such that they are isolated from other upper wires formed in the other pixel;
lower wires patterned at a region between the upper wires, the lower wires being patterned to have a through hole disposed in the region between the upper wires neighboring along the elongation direction of a data line of a liquid crystal display device; and
an insulation film having a low dielectric constant formed between the upper wires and the lower wires, wherein the lower wire is a data line of a liquid crystal display device.
18. A liquid crystal display device, comprising:
a substrate;
a plurality of gate lines and data lines to define a plurality of pixels on the substrate;
a thin film transistor at each pixel;
a passivation layer over the substrate;
pixel electrodes on the passivation layer respectively in the pixels; and
a plurality of open regions in the data line between the neighboring pixels,
wherein the open regions are laser cutting regions where a laser beam is irradiated when the neighboring pixels are short.
19. The liquid crystal display device of claim 18 , wherein the neighboring pixels are partially overlapped with the data line.