IP Library Granted Patent US 8,068,205
Granted Patent B2
US 8,068,205 · App. 12/591,450 · Granted Nov 29, 2011

Method of fabricating a liquid crystal display device using gate and common links to link gate and common lines to gate and common pads

Assignee: LG Display Co., Ltd.
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Quick Facts
Patent No.
US 8,068,205
App. No.
12/591,450
Granted
Nov 29, 2011
Kind
B2
Abstract

The present invention provides a liquid crystal display panel that is adaptive for preventing a liquid crystal contamination as well as improving an adhesive strength of a sealant and an organic insulating film, and a fabricating method thereof. A liquid crystal display device according to an embodiment of the present invention includes: a first and a second substrate having a liquid crystal region, a sealant region, and an outer region; a wiring disposed on the first substrate, the wiring crossing the sealant region; a gate insulating film disposed on the wiring; an organic insulating film disposed on a portion of the wiring; and a sealant disposed on the sealant region of the first and second substrates, wherein the sealant is in contact with the gate insulating film.

Claims (26)

1. A method of fabricating a liquid crystal display device, comprising:

providing first and second substrates having a liquid crystal region, a sealant region, and an outer region;

forming a wiring on the first substrate, wherein the wiring crosses the sealant region;

forming an inorganic insulating film on the wiring;

forming an organic insulating film on the inorganic insulating film, wherein a portion of the inorganic insulating film is exposed in the sealant region; and

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

wherein forming the wiring includes:

forming a gate line and a first common line in the liquid crystal region, a gate pad lower electrode and a common pad lower electrode in the outer region, a common link connected to the common pad lower electrode and crossing the sealant region, and a gate link connecting the gate line to the gate pad lower electrode across the sealant region;

forming a second common line on the inorganic insulating film, the second common line crossing the gate line;

exposing a portion of the common pad lower electrode, a portion of the first common line, a portion of the second common line, and a portion of the common link when patterning the organic insulating film;

exposing the gate pad lower electrode and the first common line when patterning the inorganic insulating film; and

forming a gate pad upper electrode connected to the exposed gate pad lower electrode, a common pad upper electrode connected to the portion of the common pad lower electrode, a first contact electrode connected to the portion of the first common electrode and the portion of the second common lines, and a second contact electrode connected to the portion of the second common line and the portion of the common link.

2. The method of claim 1 , wherein forming the inorganic insulating film includes patterning the inorganic insulating film.

3. The method of claim 1 , wherein a portion of the first substrate is exposed between the wiring in the sealant region.

4. The method of claim 1 , wherein forming the organic insulating film includes forming an organic insulating film that overlaps a portion of the sealant region.

5. The method of claim 4 , further comprising forming a dummy pattern between the inorganic insulating film and the organic insulating film.

6. The method of claim 5 , wherein the dummy pattern overlaps the sealant region and includes metal.

7. The method of claim 5 , wherein forming a dummy pattern includes forming a semiconductor layer underneath the dummy pattern.

8. The method of claim 1 , further comprising forming a dummy protective pattern on the organic insulating film in a region where the organic insulating film overlaps the sealant region.

9. The method of claim 8 , wherein forming a dummy protective pattern includes forming a transparent conductive layer.

10. The method of claim 1 , further comprising forming a second inorganic insulating film between the inorganic insulating film and the organic insulating film.

11. The method of claim 10 , wherein the second insulating film has a substantially similar shape to the organic insulating film.

12. The method of claim 1 , further comprising:

attaching a tape carrier package with a pad area having at least one of a gate pad and a data pad through an anisotropic conductive film; and

sealing the tape carrier package and the pad area using a second sealant.

13. The method of claim 12 , wherein the second sealant surrounds a periphery of the tape carrier package.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2011
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD
Reel/Frame 027074/0548 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2009
From: AHN, BYUNG CHUL
To: LG. PHILIPS LCD CO., LTD.
Reel/Frame 023590/0239 →
Priority Claims (1)
KR 10-2004-0049954 · Jun 30, 2004 · national
Continuity (2)
Division 11167829 · Jun 28, 2005
Related Publication 20100073622A1 · Mar 25, 2010