Liquid crystal alignment effects on the photo-crosslinkable copolymer surfaces containing cholesteryl moiety

Jeoung Yeon Hwang; Yong Bae Kim; Dae Shik Seo

doi:10.1080/713716510

Liquid crystal alignment effects on the photo-crosslinkable copolymer surfaces containing cholesteryl moiety

Jeoung Yeon Hwang, Yong Bae Kim, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

1 Citation (Scopus)

Abstract

Pretilt angle generation for a nematic liquid crystal (NLC) and electro-optical (EO) performances of the vertical-alignment (VA)-liquid crystal display (LCD) photoaligned with obliquely polarized UV exposure on the three kinds of copoly (M4Ch-ChMA), copoly ((4-methacryloyloxy) chalcone - cholesteryl methacrylate) surfaces for homeotropic LC alignment were studied. The NLC pretilt angle of 81 was observed with UV exposure of 3 min on the photo-crosslinkable copolymer surface. The NLCs pretilt angle is attributable to increased chalcone with increasing the UV exposure time. Also, a good voltage-transmittance (V-T) curve and fast response time in the VA-LCD photoaligned with obliquely polarized UV exposure of 30 on the photo-crosslinkable copolymer surfaces can be achieved.

Original language	English
Pages (from-to)	115-125
Number of pages	11
Journal	Ferroelectrics
Volume	278
DOIs	https://doi.org/10.1080/713716510
Publication status	Published - 2002 Jan 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/713716510

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title = "Liquid crystal alignment effects on the photo-crosslinkable copolymer surfaces containing cholesteryl moiety",

abstract = "Pretilt angle generation for a nematic liquid crystal (NLC) and electro-optical (EO) performances of the vertical-alignment (VA)-liquid crystal display (LCD) photoaligned with obliquely polarized UV exposure on the three kinds of copoly (M4Ch-ChMA), copoly ((4-methacryloyloxy) chalcone - cholesteryl methacrylate) surfaces for homeotropic LC alignment were studied. The NLC pretilt angle of 81 was observed with UV exposure of 3 min on the photo-crosslinkable copolymer surface. The NLCs pretilt angle is attributable to increased chalcone with increasing the UV exposure time. Also, a good voltage-transmittance (V-T) curve and fast response time in the VA-LCD photoaligned with obliquely polarized UV exposure of 30 on the photo-crosslinkable copolymer surfaces can be achieved.",

author = "Hwang, {Jeoung Yeon} and Kim, {Yong Bae} and Seo, {Dae Shik}",

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doi = "10.1080/713716510",

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T1 - Liquid crystal alignment effects on the photo-crosslinkable copolymer surfaces containing cholesteryl moiety

AU - Hwang, Jeoung Yeon

AU - Kim, Yong Bae

AU - Seo, Dae Shik

PY - 2002/1/1

Y1 - 2002/1/1

N2 - Pretilt angle generation for a nematic liquid crystal (NLC) and electro-optical (EO) performances of the vertical-alignment (VA)-liquid crystal display (LCD) photoaligned with obliquely polarized UV exposure on the three kinds of copoly (M4Ch-ChMA), copoly ((4-methacryloyloxy) chalcone - cholesteryl methacrylate) surfaces for homeotropic LC alignment were studied. The NLC pretilt angle of 81 was observed with UV exposure of 3 min on the photo-crosslinkable copolymer surface. The NLCs pretilt angle is attributable to increased chalcone with increasing the UV exposure time. Also, a good voltage-transmittance (V-T) curve and fast response time in the VA-LCD photoaligned with obliquely polarized UV exposure of 30 on the photo-crosslinkable copolymer surfaces can be achieved.

AB - Pretilt angle generation for a nematic liquid crystal (NLC) and electro-optical (EO) performances of the vertical-alignment (VA)-liquid crystal display (LCD) photoaligned with obliquely polarized UV exposure on the three kinds of copoly (M4Ch-ChMA), copoly ((4-methacryloyloxy) chalcone - cholesteryl methacrylate) surfaces for homeotropic LC alignment were studied. The NLC pretilt angle of 81 was observed with UV exposure of 3 min on the photo-crosslinkable copolymer surface. The NLCs pretilt angle is attributable to increased chalcone with increasing the UV exposure time. Also, a good voltage-transmittance (V-T) curve and fast response time in the VA-LCD photoaligned with obliquely polarized UV exposure of 30 on the photo-crosslinkable copolymer surfaces can be achieved.

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JO - Ferroelectrics

JF - Ferroelectrics

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Liquid crystal alignment effects on the photo-crosslinkable copolymer surfaces containing cholesteryl moiety

Abstract

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