Improvement in Planar Orientation of the Polymer-Stabilized Cholesteric Liquid Crystal Cells
| Autor: | Ching Jui Tien, Chi Yen Huang |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Physics and Astronomy (miscellaneous) Cholesteric liquid crystal Annealing (metallurgy) Transition temperature General Engineering General Physics and Astronomy Polymer Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Crystallography Monomer chemistry Polymerization Chemical engineering Liquid crystal Transmittance |
| Zdroj: | Japanese Journal of Applied Physics. 47:8515-8517 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.47.8515 |
| Popis: | We investigate the effects of thermal annealing on the improvement in the planar orientation of the polymer-stabilized cholesteric liquid crystal (CLC) cell. The obtained results reveal that annealing the CLC/monomer mixture at the CLC–isotropic transition temperature (Tci) effectively reduces the viscosity of the CLC/monomer mixture, accelerating the annihilation of oily streaks. Increasing the annealing time effectively removes the oily streaks, giving the polymer-stabilized CLC cell a high transmittance and a sharp stop band edge. An 8-µm-thick polymer-stabilized CLC cell with a defect-free planar texture is achieved when the annealing time of the cell exceeds 10 min. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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