Effect of Curing Voltage on Formation of Polymer-Aligned Liquid-Crystal Pi Cells
| Autor: | Jin−Jei Wu, Yu−Ping Kuo, Tien−Jung Chen, Chia-Hsing Sun |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Materials science Physics and Astronomy (miscellaneous) General Engineering General Physics and Astronomy Polymer law.invention chemistry.chemical_compound Monomer chemistry Chemical engineering Polymerization Optical microscope Liquid crystal law Pi Organic chemistry Curing (chemistry) Voltage |
| Zdroj: | Japanese Journal of Applied Physics. 45:2702-2704 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.45.2702 |
| Popis: | We prepared pi cells by adding a small amount of a UV-curable monomer to a nematic liquid crystal. The mixture of the monomer and liquid crystal was used to fill an empty cell with low-pretilt, parallel-aligned surfaces and subjected to an applied voltage (curing voltage) in polymerization. The polymer network formed in the liquid crystal host was utilized to control the alignment state of the liquid crystal (LC). The observation of polymer-aligned pi cells under a polarizing optical microscope showed that the splay-to-bend transition behavior of the liquid crystal was influenced in those cells subjected to various curing voltages. A model is proposed to explain the results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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