U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and jig for LCD-production

Patent 5106441 Issued on April 21, 1992. Estimated Expiration Date: Icon_subject January 25, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1959221

3386503

3852136

Process of forming a multi-ply laminate
Patent #: 4362587
Issued on: 12/07/1982
Inventor: Baudin ,   et al.

Field-assisted bonding method and articles produced thereby
Patent #: 4643532
Issued on: 02/17/1987
Inventor: Kleiman

Process of forming multi-play laminates
Patent #: 4647327
Issued on: 03/03/1987
Inventor: Rase

Method and apparatus for continuous hot pressing of material webs with seal protection means
Patent #: 4723484
Issued on: 02/09/1988
Inventor: Held

Method of producing liquid crystal display element Patent #: 4923552
Issued on: 05/08/1990
Inventor: Fukushima, et al.

Inventors

Assignee

Application

No. 469969 filed on 01/25/1990

US Classes:

156/104, With air evacuation between laminae156/273.7, Applying pressure before electrical, magnetic, or radiant energy156/275.3, With application of adhesive156/275.7, With application of adhesive156/285, Direct application of vacuum or fluid pressure during bonding156/292, Of laminae having opposed facing areas out of contact156/382, Evacuated or fluid pressure chamber349/187, NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL349/190Sealing of liquid crystal

Examiners

Primary: Ball, Michael W.
Assistant: Yoder, Michele K.

Attorney, Agent or Firm

Foreign Patent References

  • 59-57221 JP 04/21/1984

International Classes

B32B 031/20
B32B 031/28

Foreign Application Priority Data

1989-01-26 DE

Abstract

In a process to manufacture a liquid crystal cell, one of the two plates is provided with an adhesive edge strip. A quantity of liquid crystal which is required to form the liquid crystal layer is applied to one of the two plates and the two plates are brought together and positioned in the vacuum and bonded tightly together by the adhesive curing.By the fact that the plates with the correct quantity of liquid crystal on one of the plates are joined together in the vacuum, it is no longer necessary to evacuate the inner space between the plates in a time-comsuming process and apply liquid crystal through a small filling hole in another time-consuming process.

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