IP Library Granted Patent US 7,342,639
Granted Patent B2
US 7,342,639 · App. 10/698,471 · Granted Mar 11, 2008

Fabrication method of liquid crystal display panel and seal pattern forming device using 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 7,342,639
App. No.
10/698,471
Granted
Mar 11, 2008
Kind
B2
Abstract

A method of fabricating a liquid crystal display (LCD) panel, and a seal pattern forming device used in fabricating the same, applies both seal dispensing and screen printing techniques to form seal patterns of variously sized LCD panels formed on the same base substrate.

Claims (29)

1. A seal pattern forming device of a liquid crystal display (LCD) panel for forming seal patterns around a plurality of LCD image display regions having different sizes formed on the same substrate, comprising:

a first seal pattern printer forming at least one first seal pattern around a first image display region on a first panel region of a base substrate by a first printing method;

a second seal pattern printer forming at least one second seal pattern around a second image display region on a second panel region of the base substrate by a second printing method;

a loader transferring the base substrate to the second seal pattern printer; and

an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the first seal pattern printer,

wherein the first seal pattern printer comprises:

a table;

a support arranged over the table; and

a plurality of sealant dispensers fixed to the support.

2. A seal pattern forming device of a liquid crystal display (LCD) panel for forming seal patterns around a plurality of LCD image display regions having different sizes formed on the same substrate, comprising:

a first seal pattern printer forming at least one first seal pattern around a first image display region on a first panel region of a base substrate by a first printing method;

a second seal pattern printer forming at least one second seal pattern around a second image display region on a second panel region of the base substrate by a second printing method;

a loader transferring the base substrate to the first seal pattern printer; and

an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the second seal pattern printer,

wherein the second seal pattern printer comprises:

a table;

a screen mask; and

a roller.

3. A seal pattern forming device of a liquid crystal display (LCD) panel for forming seal patterns around a plurality of LCD image display regions having different sizes formed on the same substrate, comprising:

a first seal pattern printer forming at least one first seal pattern around a first image display region on a first panel region of a base substrate by a first printing method, wherein the first seal pattern printer includes a table, a support arranged over the table and a plurality of sealant dispensers fixed to the support;

a second seal pattern printer forming at least one second seal pattern around a second image display region on a second panel region of the base substrate by a second printing method, wherein the second seal pattern printer includes a table, a screen mask and a roller.

4. The device of claim 3 , further comprising an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the first seal pattern printer.

5. The device of claim 3 , further comprising an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the second seal pattern printer.

6. The device of claim 3 , further comprising:

a loader transferring the base substrate to the second seal patter printer; and

an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the first seal pattern printer.

7. The device of claim 3 , further comprising:

a loader transferring the base substrate to the first seal patter printer; and

an unloader receiving the base substrate on which the first seal pattern and the second seal pattern are formed from the second seal pattern printer.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021754/0045 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2003
From: KIM, JEONG-ROK; KANG, KYUNG-KYU; JUNG, JO-HANN; NAM, MYUNG-WOO; SHIN, JAE-DEUK
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 014680/0248 →