Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-10-03
2008-11-25
Sefer, Ahmed (Department: 2893)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S155000, C349S157000, C349S158000, C257SE21002
Reexamination Certificate
active
07456926
ABSTRACT:
In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.
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Hamamoto Tatsuo
Shimizu Hiromasa
A. Marquez, Esq. Juan Carlos
Fisher. Esq. Stanley P.
Hitachi , Ltd.
Reed Smith LLP
Sefer Ahmed
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