IP Library Granted Patent US 8,334,962
Granted Patent B2
US 8,334,962 · App. 12/461,164 · Granted Dec 18, 2012

Gate-in-panel type liquid crystal display device with shortage-preventing pattern and method of fabricating the same

Assignee: LG Display Co., Ltd.
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Quick Facts
Patent No.
US 8,334,962
App. No.
12/461,164
Granted
Dec 18, 2012
Kind
B2
Abstract

A liquid crystal display device comprises: a first substrate and a second substrate facing and spaced apart from each other, the first substrate and the second substrate including an active area, a signal input area and a pad area, the signal input area and the pad area being disposed at a periphery of the active area; a gate line and a data line on the first substrate in the active area, the gate line and the data line crossing each other; first connection lines and second connection lines in the signal input area, the first connection lines extending to the pad area and crossing the second connection lines; a gate connection pattern contacting the first connection lines and the second connection lines; a common electrode on the second substrate; a shortage-preventing pattern on the common electrode and corresponding to the gate connection pattern; a seal pattern surrounding the active area, the seal pattern including a conductive ball; and a liquid crystal layer between the first and second substrates in the seal pattern.

Claims (33)

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

forming first connection lines, second connection lines and a gate connection pattern on a first substrate including an active area, a signal input area and a pad area, wherein the signal input area and the pad area are disposed at a periphery of the active area, and the gate connection pattern contacting the first connection lines and the second connection lines in the signal input area;

forming a common electrode on a second substrate;

forming a shortage-preventing pattern, wherein the shortage-preventing pattern corresponds to the gate connection pattern;

forming a seal pattern surrounding the active area, the seal pattern including a conductive ball;

attaching the first and second substrates such that the shortage-preventing pattern faces the gate connection pattern; and

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

2. The method according to claim 1 , wherein said shortage preventing pattern is formed on the common electrode.

3. The method according to claim 1 , wherein said shortage preventing pattern is formed on the gate connection pattern.

4. The device according to claim 1 , wherein said shortage preventing pattern is made from a material selected from one of a dielectric, resin, plastic or glass.

5. The method according to claim 1 , further comprising:

forming a gate line on the first substrate in the active area;

forming a gate insulating layer on the gate line and the first connection lines;

forming a data line on the gate insulating layer in the active area, the data line crossing the gate line; and

forming a passivation layer on the data line and the second connection lines, the passivation layer having a first contact hole exposing the first connection lines and the second connection lines.

6. The method according to claim 5 , further comprising:

forming a thin film transistor connected to the gate line and the data line; and

forming a pixel electrode on the passivation layer and connected to the thin film transistor.

7. The method according to claim 6 , wherein the thin film transistor includes a gate electrode, the gate insulating layer on the gate electrode, a semiconductor layer on the gate insulating layer, a source electrode on the semiconductor layer and a drain electrode spaced apart from the source electrode.

8. The method according to claim 6 , wherein the gate connection pattern and the pixel electrode are simultaneously formed on the passivation layer.

9. The method according to claim 1 , further comprising:

forming a first black matrix and a second black matrix on the second substrate, the first black matrix corresponding to the active area and the second black matrix corresponding to the signal input area; and

forming a color filter layer on the first black matrix.

10. The method according to claim 1 , further comprising forming a patterned spacer on the common electrode corresponding to the active area.

11. The method according to claim 10 , wherein the shortage-preventing pattern and the patterned spacer are simultaneously formed on the common electrode.

12. A shortage preventing structure for a liquid crystal display device comprising:

a first height; and

a second width different from a width of a gate connection pattern;

wherein said shortage preventing structure is substantially disposed between a common electrode and said gate connection pattern,

wherein said gate connection pattern is disposed within a perimeter of said shortage preventing structure, and

wherein said shortage preventing structure is formed in a seal pattern including a conductive ball.

13. The shortage preventing structure of claim 12 , wherein said shortage preventing structure is a material selected from one of a dielectric, resin, plastic or glass.

14. The shortage preventing structure of claim 12 , wherein the first height is greater than a radius of the conductive ball.

Assignments (2)
CHANGE OF NAME Recorded Sep 19, 2012
From: LG. PHILLIPS LCD CO., LTD
To: LG DISPLAY CO., LTD.
Reel/Frame 029005/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2009
From: CHANG, BYUNG-HOON; KIM, MIN-JUNG
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 023080/0411 →
Priority Claims (1)
KR 2005-115385 · Nov 30, 2005 · national
Continuity (2)
Division 11453082 · Jun 15, 2006
Related Publication 20090290085A1 · Nov 26, 2009