Liquid crystal cells – elements and systems – Nominal manufacturing methods or post manufacturing...
Reexamination Certificate
2005-01-18
2005-01-18
Chowdhury, Tarifur R. (Department: 2871)
Liquid crystal cells, elements and systems
Nominal manufacturing methods or post manufacturing...
C349S189000, C349S190000
Reexamination Certificate
active
06844908
ABSTRACT:
First, a completed liquid crystal cell made by adhering two substrates with a sealant is loaded into a liquid crystal injection chamber, and then the liquid crystal injection chamber forms a high vacuum by evacuating much of the air from the chamber. The injection hole of the sealant is completely immersed in the liquid crystal material. At this time, the interior of the liquid crystal cell enclosed by the sealant is under high vacuum. Next, non-active gas is injected into the interior of the liquid crystal injection chamber, and then the vacuum in the interior of the chamber is reduced or it is allowed to return to atmospheric pressure. Then, because the interior of the liquid crystal injection chamber is at low vacuum or at atmospheric pressure and the interior of the liquid crystal cell enclosed by the sealant is at high vacuum, the liquid crystal material is injected into the interior of the liquid crystal cell enclosed by the sealant. If ultrasonic waves are applied to the liquid crystal material through the ultrasonic wave generator, cavities are formed in the liquid crystal material. As a result of the asymmetric collapse of the cavity bubbles, additional pressure is generated, hence the speed of the liquid crystal injection is increased.
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Kim Hee-Sub
Park Kwan-Sun
Chowdhury Tarifur R.
McGuireWoods LLP
Samsung Electronics Co,. Ltd.
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