IP Library Granted Patent US 7,339,647
Granted Patent B2
US 7,339,647 · App. 11/215,005 · Granted Mar 4, 2008

Liquid crystal display panel and method for manufacturing 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 7,339,647
App. No.
11/215,005
Granted
Mar 4, 2008
Kind
B2
Abstract

An LCD panel and a method for manufacturing the same facilitate more efficient hardening a UV-type hardening sealant suitable for a large size panel. The LCD panel includes first and second substrates, an active region defined on the first substrate and provided with a plurality of TFT's and pixel electrodes, a sealing region defined along a periphery of the active region, a light-shielding region defined on the second substrate other than on the sealing region, and a liquid crystal region between the first and second substrates. The method for manufacturing an LCD panel includes the steps of preparing first and second substrates, forming a plurality of patterns in an active region on the first substrate, forming a UV hardening type sealant along a periphery of the active region, forming a light-shielding layer on the second substrate so as not to shield the sealant, attaching the first and second substrates to each other, and irradiating the sealant with UV-rays to harden the sealant.

Claims (12)

1. A method for manufacturing an LCD comprising the steps of:

forming a plurality of pixel electrodes in an active region on a first substrate;

forming a pad region along a periphery of the active region and along a corresponding region of a second substrate, wherein at least one of gate and data lines extends to the pad region of the first substrate;

forming UV-type hardening sealant in the pad region;

forming a light-shielding layer at a predetermined gap from the UV-type hardening sealant in the pad and active regions;

attaching the first and second substrates to each other; and

irradiating UV-rays to the sealant,

wherein the light-shielding layer formed in the pad region includes a first portion surrounding the active region inside the UV-type hardening sealant and a second portion surrounding the UV-type hardening sealant outside the UV-type hardening sealant and the first and second portions are positioned at the predetermined gap from the UV-type hardening sealant.

2. The method of claim 1 , wherein the step of forming the light-shielding layer includes:

forming a light-shielding material on the second substrate; and

etching the light-shielding material using a mask, wherein the mask includes a first portion corresponding to a matrix arrangement in the active region and s second portion corresponding to the pad region.

3. The method of claim 1 , further comprising the step of forming a plurality of color filter patterns on the second substrate after forming the light-shielding layer.

Assignments (1)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →