Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-08-07
2007-08-07
Duong, Thoi V. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S035000, C349S179000, C349S130000, C349S132000
Reexamination Certificate
active
10028787
ABSTRACT:
On substrates2a,2bof a chiral nematic liquid crystal optical element1, transparent electrodes3a,3band electrical insulation layers4a,4bare formed, and further, resin layers5a,5bhating a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.
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Niiyama Satoshi
Suehiro Noriko
Asahi Glass Company
Duong Thoi V.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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