Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayoshi Minai0
Kazunori Iwakura0
Koichi Fujisawa0
Masamitsu Ishitobi0
Chizu Sekine0
Date of Patent
November 14, 2006
0Patent Application Number
108732110
Date Filed
June 23, 2004
0Patent Primary Examiner
Patent abstract
There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic producgs, and optical or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ΔE in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy Δα of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.:
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