IP Library Granted Patent US 8,049,853
Granted Patent B2
US 8,049,853 · App. 12/005,621 · Granted Nov 1, 2011

Liquid crystal display device and method of fabricating the same

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,049,853
App. No.
12/005,621
Granted
Nov 1, 2011
Kind
B2
Abstract

A liquid crystal display device includes a first substrate and a second substrate each including an active area and a non-active area; a black matrix on the first substrate in the non-active area; a color filter layer on the black matrix; a common electrode on the color filter layer and black matrix; an array element on the second substrate in the active area; a plurality of signal lines and a common bridge line in the non-active area; a protective layer on the array element, signal lines and a common bridge line; a transparent pattern connected to the common bridge line and extending to a border region between the active and non-active areas; a seal pattern formed in an edge portion of the first and second substrates; and a liquid crystal layer interposed between the first and second substrates.

Claims (34)

1. A liquid crystal display device, comprising:

a first substrate and a second substrate each including an active area and a non-active area;

a black matrix on the first substrate in the non-active area;

a color filter layer on the black matrix;

a common electrode on the color filter layer and black matrix;

an array element on the second substrate in the active area;

a plurality of signal lines and a common bridge line in the non-active area;

a protective layer on the array element, signal lines and a common bridge line;

a transparent pattern connected to the common bridge line and extending to a border region between the active and non-active areas;

a seal pattern formed in an edge portion of the first and second substrates; and

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

wherein the common electrode is electrically connected to the common bridge line through the transparent pattern and the seal pattern,

wherein the transparent pattern completely shields the plurality of signal lines, and

wherein a region that the transparent pattern overlaps the seal pattern is outside a region that the transparent pattern shields the plurality of signal lines.

2. The LCD device according to claim 1 , wherein the seal pattern includes one of Au ball and Ag paste.

3. The LCD device according to claim 1 , wherein the transparent pattern includes one of an Indium-Tin-Oxide (ITO) and Indium-Zinc-Oxide (IZO).

4. The LCD device according to claim 1 , wherein the common bridge line supplies a common signal from a common signal generator on the second substrate to the common electrode on the first substrate, and is spaced apart from the signal lines.

5. The LCD device according to claim 1 , wherein the common bridge line is connected to a common line in the active area.

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

forming a black matrix on a first substrate having an active area and a non-active area, the black matrix corresponding to the non-active area;

forming a color filter layer on the black matrix;

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

forming an array element, a plurality of signal lines and a common bridge line on a second substrate having an active area and a non-active area and the signal lines corresponding to the non-active area;

forming a protective layer on the array element, signal lines and common bridge line;

forming a transparent pattern connected to the common bridge line, the transparent pattern extending to a border region between the active and non-active areas;

forming a seal pattern in an edge portion of the first and second substrates; and

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

wherein the common electrode is electrically connected to the common bridge line through the transparent pattern and the seal pattern,

wherein the transparent pattern completely shields the plurality of signal lines, and

wherein a region that the transparent pattern overlaps the seal pattern is outside a region that the transparent pattern shields the plurality of signal lines.

7. The method according to claim 6 , wherein the seal pattern includes one of Au ball and Ag paste.

8. The method according to claim 6 , wherein the transparent pattern includes one of an Indium-Tin-Oxide (ITO) and Indium-Zinc-Oxide (IZO).

9. The method according to claim 6 , wherein the common bridge line transmits a common signal from a common signal generator on the second substrate to the common electrode on the first substrate, and is spaced apart from the signal lines.

10. The method according to claim 6 , further comprising forming a common line in the active area, where the common line is connected to the common bridge line corresponding to the non active area.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2007
From: PARK, CHEOL WOO
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 020332/0426 →