IP Library Granted Patent US 7,027,120
Granted Patent B2
US 7,027,120 · App. 10/753,449 · Granted Apr 11, 2006

Liquid crystal display device and method of fabricating the same

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Quick Facts
Patent No.
US 7,027,120
App. No.
10/753,449
Granted
Apr 11, 2006
Kind
B2
Abstract

A liquid crystal display device and a method of fabricating the same are disclosed in the present invention. More specifically, the method includes the steps forming a gate line on the first substrate sequentially forming a first insulating layer, an amorphous silicon layer, and a metal layer on the first substrate, patterning the metal layer to form a data line, forming a second insulating layer on the data line, patterning the second insulating layer and the amorphous silicon layer to form a passivation layer and an active layer, respectively, forming a pixel electrode at a pixel region defined by the gate and data lines, assembling the first substrate and the second substrate having a black matrix thereon, wherein the black matrix vertically overlaps at least one boundary line defined by different exposures during step-and-repeat exposure processes; and forming a liquid crystal layer between the first and second substrates.

Claims (24)

1. A liquid crystal display device comprising:

first and second substrates facing into each other;

a gate line on the first substrate;

a gate insulating layer on the first substrate including the gate line;

an active layer on the gate insulating layer;

a data line over the active layer;

a passivation layer on the data line;

a pixel electrode on the gate insulating layer and having a stitch line therein, the stitch line corresponding to a boundary line defined by different exposures during a step-and-repeat process for forming the passivation layer; and

a black matrix over the second substrate,

wherein the stitch line in the pixel electrode substantially overlaps the black matrix in a vertical direction.

2. A liquid crystal display device comprising:

first and second substrates facing into each other;

a gate line on an inner surface of the first substrate;

a first insulating layer on the gate line;

a silicon layer on the first insulating layer;

a data line on the silicon layer, the data line crossing the gate line;

a second insulating layer on the data line, the second insulating layer having the same shape as the silicon layer;

a pixel electrode at a pixel region defined by the gate and data lines;

a black matrix on an inner surface of the second substrate;

a common electrode on the black matrix; and

a liquid crystal layer between the first and second substrates, wherein at least one stitch line is formed in the first insulating layer during a step-and-repeat exposure for forming the second insulating layer, and the black matrix substantially overlaps the stitch line in a vertical direction.

3. The device according to claim 2 , wherein the stitch line is disposed over the gate line and the data line.

4. The device according to claim 1 , wherein the stitch line is disposed over the gate line and the data line.

5. The device according to claim 1 , wherein the gate insulating layer has the stitch line therein.

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 Jul 28, 2005
From: YOO, SOON-SUNG; KWAK, DONG-YEUNG; KIM, HU-SUNG; JUNG, YU-HO; KIM, YONG-WAN; PARK, DUK-JIN; LEE, WOO-CHAE
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 016822/0614 →