IP Library Granted Patent US 7,291,238
Granted Patent B2
US 7,291,238 · App. 10/867,680 · Granted Nov 6, 2007

Method of manufacturing liquid crystal display panel and liquid crystal display panel manufacturing apparatus

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 7,291,238
App. No.
10/867,680
Granted
Nov 6, 2007
Kind
B2
Abstract

A method of manufacturing a liquid crystal display panel is provided which includes bonding a pair of substrates to each other with a gap maintained therebetween and defining an intake between the substrates, injecting liquid crystal into a space between the substrates through the intake in an environment heated in comparison with room temperature, and sealing the intake by a sealant, with the environment kept heated from the injecting of the liquid crystal.

Claims (22)

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

bonding a pair of substrates to each other with a gap maintained therebetween, and defining an intake between the substrates;

injecting liquid crystal into a space between the substrates through the intake in an environment heated in comparison with room temperature;

sealing the intake by a sealant, with the environment kept heated from the injecting of the liquid crystal; and

controlling a suction width of the sealant in the intake by changing a temperature of the environment during the sealing of the intake to a temperature higher than the temperature during the injecting of the liquid.

2. A method according to claim 1 , further comprising:

wiping away a liquid crystal adhering to the intake after the injecting of the liquid crystal,

wherein

the wiping of the liquid crystal is performed in an environment heated in comparison with room temperature.

3. A method according to claim 1 , wherein

the sealing of the intake is performed under atmospheric pressure.

4. A method of manufacturing a liquid crystal display panel, the method comprising:

bonding a pair of substrates to each other with a gap maintained therebetween, and defining an intake between the substrates;

injecting liquid crystal into a space between the substrates through the intake, the liquid crystal being more expanded than the liquid crystal at room temperature;

sealing the intake by a sealant, with the liquid crystal kept expanded from the injecting of the liquid crystal; and

controlling a suction width of the sealant in the intake by changing an expanded state of the liquid crystal during the sealing of the intake to an expanded state more expanded than the state of the liquid crystal during the injecting of the liquid crystal.

5. A method according to claim 4 , further comprising:

wiping away a liquid crystal adhering to the intake after the injecting of the liquid crystal,

wherein

the wiping of the liquid crystal is performed with the liquid crystal being more expanded than the liquid crystal at room temperature.

6. A method according to claim 4 , wherein

the sealing of the intake is performed under atmospheric pressure.

Assignments (2)
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY CO., LTD.
To: TOSHIBA MOBILE DISPLAY CO., LTD.
Reel/Frame 028339/0273 →
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MOBILE DISPLAY CO., LTD.
To: JAPAN DISPLAY CENTRAL INC.
Reel/Frame 028339/0316 →