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US 4,691,995 AGranted
Liquid crystal filling device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei Yamazaki, Toshimitsu Konuma, Toshiji Hamatani, Akira Mase, Kaoru Koyanagi, Shinji Imato, Toshiharu Yamaguchi, Mitsunori Sakama, Takashi Inujima
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Abstract
An improved liquid crystal filling device is shown. Prior to joining a substrate with another substrate between which the liquid crystal is to be charged, the liquid crystal is dropped on the substrate and then the other substrate is superimposed on the substrate under pressure. Sandwiched between the substrates, the liquid crystal spreads at high temperature.
Claims9
A liquid crystal filling system comprising:
- a vacuum chamber;
- a flexible sheet provided in the chamber and separating the chamber into first and second spaces in an air tight manner;
- and
- first and second evacuating devices for said first and second spaces.
1 more element
A liquid crystal filling method comprising:
- (1) a step of preparing first and second substrates;
- (2) a step of placing an amount of liquid crystal on the first substrate;
- (3) a step of laying the second substrate on the first substrate coincident with each other;
- (4) a step of applying pressure to the second substrate toward the first substrate;
- and
- (5) a step of making a sealing structure on the periphery of the substrates.
3 more elements
Dependencies are inferred from the claim text.