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

Non-uniformly-rigid barrier wall spacers used to correct problems caused by thermal contraction of smectic liquid crystal material

Patent 6337730 Issued on January 8, 2002. Estimated Expiration Date: Icon_subject June 1, 2019. 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

Method of fabricating a liquid crystal display
Patent #: 3978580
Issued on: 09/07/1976
Inventor: Leupp ,   et al.

Color filter substrate for a liquid crystal display with terminal portions having same height and same material as those of black matrixes
Patent #: 5400157
Issued on: 03/21/1995
Inventor: Won

Ferroelectric liquid crystal device with grooves between electrode on one substrate, ridges on the other
Patent #: 5452114
Issued on: 09/19/1995
Inventor: Hotta, et al.

Liquid crystal display device with acrylic polymer spacers and method of manufacturing the same
Patent #: 5499128
Issued on: 03/12/1996
Inventor: Hasegawa, et al.

Liquid crystal having a plurality of rectilinear barrier members
Patent #: 5559621
Issued on: 09/24/1996
Inventor: Minato, et al.

Process for producing liquid crystal panel including reducing the pressure to no more than 25 torr/minute
Patent #: 5576865
Issued on: 11/19/1996
Inventor: Watanabe, et al.

Liquid crystal panel including antiferroelectric liquid crystal and process for producing the same
Patent #: 5719653
Issued on: 02/17/1998
Inventor: Minato, et al.

LCD device with improved resilient adhesive spacers
Patent #: 5838414
Issued on: 11/17/1998
Inventor: Lee

LCD cell having two supporting gap members different in height Patent #: 6067144
Issued on: 05/23/2000
Inventor: Murouchi

Inventors

Assignee

Application

No. 323105 filed on 06/01/1999

US Classes:

349/156, Formed as walls (e.g., between pixels) or integral with substrate349/184, In smectic phase349/189Injecting liquid crystal

Examiners

Primary: Ton, Toan
Assistant: Schechter, Andrew

Attorney, Agent or Firm

Foreign Patent References

  • 6-68589 JP. 08/18/1994

International Classes

G02F 001/133.9
G02F 001/134.1

Foreign Application Priority Data

1998-06-02 JP

Abstract

According to this liquid crystal cell, a vacuum to be established between two electrode substrates as a result of the volume shrinkage of a liquid crystal having a high viscosity at the room temperature can be damped by communicating between two of a plurality of filling portions formed between two electrode substrates by a plurality of barrier walls through the intervening barrier walls. An anti-ferroelectric liquid crystal (AFLC) is used as the liquid crystal. The liquid crystal cell has a lower electrode substrate and an upper electrode substrate, between which a smectic liquid crystal is disposed together with a plurality of barrier walls on the inner side of a band seal. Each barrier wall has through holes to communicate between the two filling portions located on the two sides of the barrier walls.

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