Translator Disclaimer
17 June 1998 Synthesis of asymmetric tolane liquid crystals for display applications
Author Affiliations +
Proceedings Volume 3421, Display Technologies II; (1998)
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan
Four series of trans-cyclohexyl-based tolanes, i.e., 4- (trans-4-alkylcyclohexy)-4'-fluorotolanes, 4-(trans-4-alkyl- cyclohexyl)-3',4'-difluorotolanes, 4-[2-(trans-4-alkyl- cyclo-hexyl)ethyl]-4'-alkyltolanes and fluorinated 4- [2-(trans-4-alkylcyclohexyl)ethyl] tolanes are prepared and characterized. All the obtained compounds display nematic liquid crystalline phases. The results demonstrate that incorporation of a cyclohexyl ring in the mesogen core structure leads to form a wide temperature range of mesophase. However it also increases the tendency to form a smectic phase. The dielectric anisotropy and birefringence of some selected compounds were measured by a guest-host method. All of those compounds studied show relatively high dielectric anisotropy and birefringence.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kuen-Torng Tsay, Chain-Shu Hsu, and Shin-Tson Wu "Synthesis of asymmetric tolane liquid crystals for display applications", Proc. SPIE 3421, Display Technologies II, (17 June 1998);

Back to Top