Blue phase stability of n-OCB homologue chiral nematic liquid crystal mixtures

Abstract

Blue phase (BP) stability of a chiral nematic liquid crystal (LC) mixture is dependent upon chemical structure as well as physical properties. In this study, the blue phase temperature range dependent on alkyl chain length was investigated in order to evaluate the relationship between blue phase stability and the molecular structures of four kinds of 4-n-alkyloxy-4'-cyanobiphenyl (n-OCB) homologue chiral nematic LC mixtures composed of rod-like nematic LCs. It was confirmed that the blue phase temperature range was strongly dependent upon the molecular parity, K ₃₃/K ₁₁ and the helical twist power of the n-OCB homologues chiral nematic LC mixtures.

Keywords:

• blue phase
• temperature range
• n-OCB homologue
• molecular parity
• K ₃₃/K ₁₁
• HTP

View correction statement:

Blue phase stability of n-OCB homologue chiral nematic liquid crystal mixtures

Acknowledgements

We thank Chisso Co. LTD for providing the nematic mixture, JC-1041. This work was supported by 2011 Dongguk University-Seoul Research Fund. This work was supported by Grant in Aid for (S-2011-E0254-00001) from Samsung Display Co. LTD.