The effects of conditions for polymerization induced phase separation processes on the electro-optic characteristics of polymer dispersed liquid crystals

Kee Jeong Yang; Kang Pil Kim; Dae Hwan Kim; Byeong Dae Choi

doi:10.1080/15421400802612508

The effects of conditions for polymerization induced phase separation processes on the electro-optic characteristics of polymer dispersed liquid crystals

Kee Jeong Yang, Kang Pil Kim, Dae Hwan Kim, Byeong Dae Choi

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The electro-optic properties of PDLC films were investigated by process conditions such as PDLC injection temperature, UV curing temperature and UV power. The mixture of liquid crystal (TL205) and the prepolymer substituted 1,6-hexanediol diacrylate (HDDA) for trimethylolpropane triacrylate (TMPTA), and the crosslinker in PN393 was used for PDLC formulation. The contrast ratio and driving voltage of PDLC films were mainly affected by UV curing temperature, rather than by the injection temperature. The film that was prepared at a relatively low UV process temperature revealed a good contrast ratio at a low driving voltage.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals
Volume	498
DOIs	https://doi.org/10.1080/15421400802612508
State	Published - Jan 2009

Bibliographical note

Funding Information:
This work was partly supported by the IT R&D program of MIC/IITA [2007-F-045-01, Development of the projection input/output optical platform for realistic portable devices] and the DGIST Basic Research Program of the MOST.

Keywords

Driving voltage
Electro-optic properties
Flexible display
Microdisplays
PDLC
UV process temperature

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10.1080/15421400802612508

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abstract = "The electro-optic properties of PDLC films were investigated by process conditions such as PDLC injection temperature, UV curing temperature and UV power. The mixture of liquid crystal (TL205) and the prepolymer substituted 1,6-hexanediol diacrylate (HDDA) for trimethylolpropane triacrylate (TMPTA), and the crosslinker in PN393 was used for PDLC formulation. The contrast ratio and driving voltage of PDLC films were mainly affected by UV curing temperature, rather than by the injection temperature. The film that was prepared at a relatively low UV process temperature revealed a good contrast ratio at a low driving voltage.",

keywords = "Driving voltage, Electro-optic properties, Flexible display, Microdisplays, PDLC, UV process temperature",

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note = "Funding Information: This work was partly supported by the IT R&D program of MIC/IITA [2007-F-045-01, Development of the projection input/output optical platform for realistic portable devices] and the DGIST Basic Research Program of the MOST.",

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doi = "10.1080/15421400802612508",

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AU - Kim, Kang Pil

AU - Kim, Dae Hwan

AU - Choi, Byeong Dae

N1 - Funding Information: This work was partly supported by the IT R&D program of MIC/IITA [2007-F-045-01, Development of the projection input/output optical platform for realistic portable devices] and the DGIST Basic Research Program of the MOST.

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N2 - The electro-optic properties of PDLC films were investigated by process conditions such as PDLC injection temperature, UV curing temperature and UV power. The mixture of liquid crystal (TL205) and the prepolymer substituted 1,6-hexanediol diacrylate (HDDA) for trimethylolpropane triacrylate (TMPTA), and the crosslinker in PN393 was used for PDLC formulation. The contrast ratio and driving voltage of PDLC films were mainly affected by UV curing temperature, rather than by the injection temperature. The film that was prepared at a relatively low UV process temperature revealed a good contrast ratio at a low driving voltage.

AB - The electro-optic properties of PDLC films were investigated by process conditions such as PDLC injection temperature, UV curing temperature and UV power. The mixture of liquid crystal (TL205) and the prepolymer substituted 1,6-hexanediol diacrylate (HDDA) for trimethylolpropane triacrylate (TMPTA), and the crosslinker in PN393 was used for PDLC formulation. The contrast ratio and driving voltage of PDLC films were mainly affected by UV curing temperature, rather than by the injection temperature. The film that was prepared at a relatively low UV process temperature revealed a good contrast ratio at a low driving voltage.

KW - Driving voltage

KW - Electro-optic properties

KW - Flexible display

KW - Microdisplays

KW - PDLC

KW - UV process temperature

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JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

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The effects of conditions for polymerization induced phase separation processes on the electro-optic characteristics of polymer dispersed liquid crystals

Abstract

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Keywords

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