IP Library Granted Patent US 7,177,005
Granted Patent B2
US 7,177,005 · App. 09/891,694 · Granted Feb 13, 2007

Liquid crystal display device manufacturing method and liquid crystal display device manufacturing system

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Quick Facts
Patent No.
US 7,177,005
App. No.
09/891,694
Granted
Feb 13, 2007
Kind
B2
Abstract

There is provided a liquid crystal display device manufacturing method that comprises the steps of forming a sealing member along a periphery of a display area on a first surface of a first substrate, dropping a liquid crystal to the first surface of the first substrate from a top end of a liquid crystal supply needle provided to a lower end of a syringe in which the liquid crystal is filled, and dropping down the liquid crystal adhered to a surface of the liquid crystal supply needle onto the first substrate by an external force in a middle of dropping of the liquid crystal or after the liquid crystal is dropped. Accordingly, an amount of liquid crystal supplied to the substrate can be controlled with high precision.

Claims (6)

1. A liquid crystal display device manufacturing method comprising the steps of:

forming a sealing member along a periphery of a display area on a first surface of a first substrate;

dropping a liquid crystal to the first surface of the first substrate from a liquid crystal supply needle provided to a syringe in which the liquid crystal is filled; and

causing a portion of the liquid crystal that has adhered to a surface of the liquid crystal supply needle to fall onto the first substrate by blowing a gas against the liquid crystal supply needle after said dropping the liquid crystal step.

2. A liquid crystal display device manufacturing method according to claim 1 , wherein the gas is blown against the liquid crystal supply needle from air supply needles that are arranged around the liquid crystal supply needle.

3. A liquid crystal display device manufacturing method according to claim 1 , wherein the liquid crystal in the syringe is pushed out of the liquid crystal supply needle by a mechanically actuated plunger.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2005
From: FUJITSU LIMITED
To: SHARP KABUSHIKI KAISHA
Reel/Frame 016345/0210 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2005
From: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
To: FUJITSU LIMITED
Reel/Frame 016345/0310 →