Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy

Ji Hun Lim; Young Hwan Kim; Byeong Yun Oh; Byeong Yong Kim; Jeong Min Han; Jeong Yeon Hwang; Dae Shik Seo

doi:10.1117/12.830959

Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy

Ji Hun Lim, Young Hwan Kim, Byeong Yun Oh, Byeong Yong Kim, Jeong Min Han, Jeong Yeon Hwang, Dae Shik Seo

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Recently, the relationship between surface energy and tilt angle on vertical polyimide (PI) was studied. The study showed that ion beam (IB) exposure using argon gas changes the surface energy of vertical PI as a function of exposure time. This characteristic induces the transition of vertical liquid crystal (LC) orientation from vertical to homogeneous. In this study, we applied the property to fabricate liquid crystal displays (LCD) with both vertical alignment (VA) and twisted nematic (TN) LCDs on vertical PI. The study revealed correlations between various IB exposure energies and surface energies with the same exposure time on vertical PI. X-ray photoelectron spectroscopic spectra were analyzed to prove the correlations and transmittance curves via applied voltage to VA, and TN LCDs were evaluated to observe the LC driving performance on IB-irradiated vertical PI.

Original language	English
Title of host publication	Nanostructured Thin Films II
DOIs	https://doi.org/10.1117/12.830959
Publication status	Published - 2009
Event	Nanostructured Thin Films II - San Diego, CA, United States Duration: 2009 Aug 5 → 2009 Aug 6

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7404
ISSN (Print)	0277-786X

Other

Other	Nanostructured Thin Films II
Country/Territory	United States
City	San Diego, CA
Period	09/8/5 → 09/8/6

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.830959

Cite this

Lim, J. H., Kim, Y. H., Oh, B. Y., Kim, B. Y., Han, J. M., Hwang, J. Y., & Seo, D. S. (2009). Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy. In Nanostructured Thin Films II [74040X] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7404). https://doi.org/10.1117/12.830959

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title = "Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy",

abstract = "Recently, the relationship between surface energy and tilt angle on vertical polyimide (PI) was studied. The study showed that ion beam (IB) exposure using argon gas changes the surface energy of vertical PI as a function of exposure time. This characteristic induces the transition of vertical liquid crystal (LC) orientation from vertical to homogeneous. In this study, we applied the property to fabricate liquid crystal displays (LCD) with both vertical alignment (VA) and twisted nematic (TN) LCDs on vertical PI. The study revealed correlations between various IB exposure energies and surface energies with the same exposure time on vertical PI. X-ray photoelectron spectroscopic spectra were analyzed to prove the correlations and transmittance curves via applied voltage to VA, and TN LCDs were evaluated to observe the LC driving performance on IB-irradiated vertical PI.",

author = "Lim, {Ji Hun} and Kim, {Young Hwan} and Oh, {Byeong Yun} and Kim, {Byeong Yong} and Han, {Jeong Min} and Hwang, {Jeong Yeon} and Seo, {Dae Shik}",

year = "2009",

doi = "10.1117/12.830959",

language = "English",

isbn = "9780819476944",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Nanostructured Thin Films II",

note = "Nanostructured Thin Films II ; Conference date: 05-08-2009 Through 06-08-2009",

}

Lim, JH, Kim, YH, Oh, BY, Kim, BY, Han, JM, Hwang, JY & Seo, DS 2009, Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy. in Nanostructured Thin Films II., 74040X, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7404, Nanostructured Thin Films II, San Diego, CA, United States, 09/8/5. https://doi.org/10.1117/12.830959

Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy. / Lim, Ji Hun; Kim, Young Hwan; Oh, Byeong Yun et al.
Nanostructured Thin Films II. 2009. 74040X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7404).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy

AU - Lim, Ji Hun

AU - Kim, Young Hwan

AU - Oh, Byeong Yun

AU - Kim, Byeong Yong

AU - Han, Jeong Min

AU - Hwang, Jeong Yeon

AU - Seo, Dae Shik

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N2 - Recently, the relationship between surface energy and tilt angle on vertical polyimide (PI) was studied. The study showed that ion beam (IB) exposure using argon gas changes the surface energy of vertical PI as a function of exposure time. This characteristic induces the transition of vertical liquid crystal (LC) orientation from vertical to homogeneous. In this study, we applied the property to fabricate liquid crystal displays (LCD) with both vertical alignment (VA) and twisted nematic (TN) LCDs on vertical PI. The study revealed correlations between various IB exposure energies and surface energies with the same exposure time on vertical PI. X-ray photoelectron spectroscopic spectra were analyzed to prove the correlations and transmittance curves via applied voltage to VA, and TN LCDs were evaluated to observe the LC driving performance on IB-irradiated vertical PI.

AB - Recently, the relationship between surface energy and tilt angle on vertical polyimide (PI) was studied. The study showed that ion beam (IB) exposure using argon gas changes the surface energy of vertical PI as a function of exposure time. This characteristic induces the transition of vertical liquid crystal (LC) orientation from vertical to homogeneous. In this study, we applied the property to fabricate liquid crystal displays (LCD) with both vertical alignment (VA) and twisted nematic (TN) LCDs on vertical PI. The study revealed correlations between various IB exposure energies and surface energies with the same exposure time on vertical PI. X-ray photoelectron spectroscopic spectra were analyzed to prove the correlations and transmittance curves via applied voltage to VA, and TN LCDs were evaluated to observe the LC driving performance on IB-irradiated vertical PI.

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Relationship between the contact angle and the tilt angle on the vertical polymer layer of NLC using various ion beam exposure energy

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