IP Library › Granted Patent US 7,450,213
Granted Patent B2
US 7,450,213 · App. 11/476,919 · Granted Nov 11, 2008

Methods of manufacturing liquid crystal display devices

Assignee: LG Display Co., Ltd.
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Quick Facts
Patent No.
US 7,450,213
App. No.
11/476,919
Granted
Nov 11, 2008
Kind
B2
Abstract

An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.

Claims (11)

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

providing first and second substrates;

dispensing liquid crystal on one of the first and second substrates;

dispensing sealant on one of the first and second substrates in a predetermined pattern;

bonding the first and second substrate together;

providing an inlet in the sealant;

determining whether the amount of liquid crystal between the two substrates is excessive or insufficient;

providing liquid crystal between the substrate if the amount determined is insufficient;

extracting liquid crystal by applying pressure to the substrates if the amount of liquid crystal is excessive;

cutting the substrate into one or more liquid crystal display panels, said cutting including cutting through a portion of the sealant; and

inspecting the liquid crystal display panel for optical defects.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021754/0230 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 24, 2006
From: EUN, CHONG CHAN; RYU, JAE CHOON; YU, JUN YOUNG; LEE, JEONG JOON; SHIM, CHANG BO; SONG, HYUN HO; MOON, SEUNG WON; KOO, SUNG MO; YOO, JUNG DEOG; KIM, JUNG SIK; BAEK, SE JOON; KIM, TAE MAN; MOON, CHEOL JOO; SON, HAE JOON; LEE, HONG SEOK; CHOI, BYOUNG CHUL; BANG, YOUNG PHIL; LEE, IN KYU; KIM, HEUNG SUN; BOK, GU YUN; CHO, JUN BEOM; JONG, JAE MIN; KIM, JONG WON; SHIN, JAE HO; KIM, JE HYUN; PARK, HYUNG JIN; LEE, SEUNG BUM; KIM, BURN SOO; HA, BYOUNG MOK; NA, CHANG SOO; LEE, JEONG HO; KIM, JUNG SEUNG; YANG, MYOUNG SU; LEE, JAE KYUN; JANG, HYUN SEOK; LEE, JUL IL
To: LG. PHILIPS LCD CO., LTD.
Reel/Frame 018637/0197 →
Continuity (1)
Related Publication 20080002137A1 · Jan 3, 2008