Method and apparatus for supplying liquid crystal into cell using side ports for both vacuum and supply
AssigneeBeldex Corporation
InventorGyo Shimotoyodome
Life of this patent
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Abstract
A square sell 1 has a first port (5) and a second port (6) formed in its opposing first and second edge portions, respectively and third and fourth ports (7a, 7b, 8a, 8b) formed in its third and fourth edge portions respectively. An evacuating operation is performed at the second port (6). A liquid crystal injecting operation is performed at the first port (5) when a predetermined degree of vacuum is reached. At the third and fourth ports (7a, 7b, 8a, 8b), first, an evacuating operation is performed. Then, the evacuating operation is switched over to the liquid crystal injecting operation at the third and fourth ports (7a, 7b, 8a, 8b) by means of a switch-over operation of electromagnetic switch valves (15a, 15b, 16a, 16b).
Claims8
A method for supplying a liquid crystal into a rectangular cell having a first edge portion, a second edge portion opposing said first edge portion, and a third and a fourth edge portion orthogonal to said first and second edge portions, said first to fourth edge portions being formed with first to fourth ports respectively, said method comprising:
- injecting a liquid crystal into said cell through said first port;
- evacuating an interior of said cell through said second port;
- and
- at said third and fourth ports, an evacuating operation being performed first and then the evacuating operation being switched over to a liquid crystal injecting operation.
An apparatus for supplying a liquid crystal into a rectangular cell having a first edge portion, a second edge portion opposing said first edge portion, and a third and a fourth edge portion orthogonal to said first and second edge portions, said first to fourth edge portions being formed with first to fourth ports respectively, said apparatus comprising:
- (a) first to fourth connectors which are to be connected to said first to fourth ports, respectively;
- (b) liquid crystal supply means connected to said first port and for supplying a liquid crystal to an interior of said cell;
- (c) evacuation means connected to said second port and for evacuating the interior of said cell;
- and
- (d) connection switchover means for connecting said third and fourth ports to said evacuation means and then to said liquid crystal supply means.
Dependencies are inferred from the claim text.