IP Library Granted Patent US 7,214,115
Granted Patent B2
US 7,214,115 · App. 10/703,585 · Granted May 8, 2007

Method of manufacturing liquid crystal display device

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Quick Facts
Patent No.
US 7,214,115
App. No.
10/703,585
Granted
May 8, 2007
Kind
B2
Abstract

A method of manufacturing an LCD device includes forming a gate bus line, a gate insulating layer, an active layer, and a source/drain metal layer on a transparent insulating substrate; etching the source/drain metal layer and active layer to form a source/drain electrode and a channel layer while forming a metal protection pattern in a peripheral region of the transparent insulating substrate; forming a protection layer and a pixel electrode on the insulating substrate; forming a main seal line at an interior region of the array substrate, forming a first auxiliary seal line between the metal protection pattern and the main seal line, and forming second and third auxiliary seal lines; and attaching a color filter substrate to the array substrate via the main seal line.

Claims (29)

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

forming an array substrate on an insulating substrate, comprising:

forming a metal protection pattern at a peripheral region of the insulating substrate;

forming a main seal line to a predetermined thickness within an interior region of the array substrate, wherein the main seal line is spaced apart a first distance from the insulating substrate by at least one layer;

forming a first auxiliary seal line between the main seal line and the metal protection pattern on the insulating substrate, wherein the first auxiliary seal line is spaced apart a second distance from the insulating substrate by at least one layer; and

attaching a color filter substrate to the array substrate.

2. The manufacturing method of claim 1 , further comprising forming a second auxiliary seal line, wherein the second auxiliary seal line does not overlap the metal protection pattern.

3. The manufacturing method of claim 1 , further comprising forming a third auxiliary seal line spaced apart from the second auxiliary seal line, wherein the third auxiliary seal line does not overlap the metal protection pattern.

4. The manufacturing method of claim 1 , wherein the first distance is greater than the second distance.

5. The manufacturing method of claim 1 , wherein the first distance is substantially equal to the second distance.

6. The manufacturing method of claim 1 , further comprising forming the first auxiliary seal line to the predetermined thickness.

7. The manufacturing method of claim 1 , wherein forming the array substrate further comprises:

forming a gate insulating layer on the insulating substrate; and

forming a protection layer on the gate insulating layer, wherein

the first auxiliary seal line is formed on the protection layer.

8. The manufacturing method of claim 1 , wherein forming the array substrate further comprises:

forming a gate electrode metal layer on the insulating substrate;

forming a gate insulating layer on the gate electrode metal layer; and

forming a protection layer on the gate insulating layer, wherein

the first auxiliary seal line is formed on the protection layer.

9. The manufacturing method of claim 8 , wherein forming the gate electrode metal layer includes forming the gate electrode metal layer at the interior region of the array substrate and at the peripheral region of the insulating substrate.

10. The manufacturing method of claim 1 , wherein forming the array substrate further comprises:

forming a gate electrode metal layer on the insulating substrate;

forming a gate insulating layer on the gate electrode metal layer; and

forming a protection layer on the gate insulating layer, wherein

the main seal line is formed on the protection layer.

11. The manufacturing method of claim 10 , wherein forming the gate electrode metal layer includes forming the gate electrode metal layer at the interior region of the array substrate and at the peripheral region of the insulating substrate.

12. The manufacturing method of claim 1 , wherein attaching the color filter substrate comprises contacting the color filter substrate to the main seal line.

13. The manufacturing method of claim 12 , wherein attaching the color filter substrate comprises contacting the color filter substrate to the first auxiliary seal line.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG. PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021773/0029 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2003
From: PARK, KWANG SEOP
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 014690/0194 →