Liquid crystal and liquid crystal display

Details Liquid crystal and liquid crystal display Liquid crystal and liquid crystal display

2011-03-22

2011-03-22

Wu, Shean C (Department: 1722)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001300, C252S299010, C252S299500, C252S299660, C252S299670

Reexamination Certificate

active

07910180

ABSTRACT:
A novel liquid crystal comprising a first liquid compound having bent structures and a second liquid crystal compound. A liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity while a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity. A smectic liquid crystal phase formed by the first liquid crystal compound has a tilted structure while a smectic liquid crystal phase formed by the second liquid crystal compound has no tilted structure. The first liquid crystal compound is represented by the following chemical formula (m=16) and the second liquid crystal compound is represented by the following chemical formula (m=4).

REFERENCES:
patent: 11256163 (1999-09-01), None
patent: 2001303058 (2001-10-01), None
patent: 2002161277 (2002-06-01), None
English translation by computer for JP 2002-161277, http://www4.ipdl.inpit.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=2002-161277.
Watanabe etal.,“Smectic mesophase properties of dimeric compounds. 2. Distinct formation of smectic structures with antiferroelectric ordering and frustration”, Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals (2000), 346, 77-86.
English translation by computer for JP 2001-303058, http://www4.ipdl.inpit.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=2001-303058.
English translation by computer for JP 11-256163, http://www4.ipdl.inpit.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=H11-256163.
Pelzl et al., “Banana-Shaped Compounds—A New Field of Liquid Crystals”, Adv. Mater. 1999, 11, No. 9.

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