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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 48, Number 5
JKCSEZ 48(5)
October 20, 2004

Title	Synthesis of trans, trans-4-(2-Fluoro-3-isothiocyanato-4-propylphenyl)-4-alkylbicyclohexyl for Liquid Crystal Display 액정 디스플레이를 위한 트랜스, 트랜스-4-(2-플르로로-3-아이소싸이오싸이아네이토-4-프로필페닐)-4?알킬바이싸이클로헥실의 합성
Author	S. H. Lee, S. H. Kim 이선희, 김성훈
Keywords	수직배향, LCD, 음의 유전율 이방성, 액정, NCS , Negative Dielectric Anisotropy, VA Mode, LCD, Liquid Crystal
Abstract	수식배향(VA) 모드 액정디스플레이에 사용될 수 있는 음의 유전율 상수를 갖고 있는 화합물들을 고안합성하였다. 이들은 분자의 단축방향으로 큰 쌍극자 모멘트와 큰 분극성을 갖고 있어 N 형태의 액정으로 사용될 수 있다. 중심의 바이싸이클로헥신벤젠에 플로오린과 NCS기를 말단부분에 알킬기를 도입하였다. 합성된 화합물등은 예상대로 음의 유전율 이방성을 보여 주었다. We designed and synthesized compounds which have negative dielectric anisotropy (N type) for VA-LCD mode. Due to the large dipole moments toward the minor axis of molecule and anisotropy of polarizability, they can be used as N type LC. F atom and NCS group and propyl group were introduced as substituents on bicyclohexylbenzene core unit and alkyl chains (propyl~heptyl) were introduced on terminal part. All of the synthesized compounds showed negative dielectric anisotropy as expected.
Page	499 - 503
Full Text	PDF

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