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Electro optic characteristics of polymer-dispersed liquid-crystal films for flexible display

Title
Electro optic characteristics of polymer-dispersed liquid-crystal films for flexible display
Authors
Yang, KJ[Yang, Kee-Jeong]Kang, JK[Kang, Jin-Kyu]Choi, BD[Choi, Byeong-Dae]
DGIST Authors
Yang, KJ[Yang, Kee-Jeong]Kang, JK[Kang, Jin-Kyu]Choi, BD[Choi, Byeong-Dae]
Issue Date
2014-08
Citation
Japanese Journal of Applied Physics, 53(8)
Type
Article
Article Type
Article; Conference Paper
Keywords
1,6-Hexanediol Diacrylate2-Ethyl Hexyl AcrylateDielectric AnisotropiesDriving ConditionsElectro-Optic CharacteristicElectro-Optic PropertiesLiquid CrystalsPlastic FilmsPolymer Dispersed Liquid Crystals (PDLC)Specific Voltages
ISSN
0021-4922
Abstract
The electro optic properties of a polymer-dispersed liquid-crystal (PDLC) film were investigated by varying the driving conditions such as applied voltage and frequency. The PDLC was formed from a mixture of a liquid crystal (TL205) and prepolymer consisting of 2-ethylhexyl acrylate, Darocur 4265, 1,6-hexanediol diacrylate, and Ebecryl 810. When driven by applied voltage, the PDLC film showed contrast ratio of 17.59-23.64 at frequencies of 1 ×102-1 × 106 Hz, but the contrast ratio decreased to 4.01-6.46 within specific voltage ranges. With an increase in frequency, the dielectric anisotropy of the LC decreased, causing an increase in both the threshold voltage and driving voltage. Thus, the electro optic properties of the PDLC film could be modified by varying the voltage and frequency conditions. © 2014 The Japan Society of Applied Physics.
URI
http://hdl.handle.net/20.500.11750/3059
DOI
10.7567/JJAP.53.08NF03
Publisher
Institute of Physics Publishing
Related Researcher
Files:
There are no files associated with this item.
Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


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