Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography

Hong Gyu Park, Jong Jin Lee, Ki Young Dong, Byeong Yun Oh, Young Hwan Kim, Hae Yoon Jeong, Byeong Kwon Ju, Dae Shik Seo

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

In this paper, nanoimprint lithography was utilized to transfer a nano-pattern (NP) onto a homeotropic polyimide (PI) surface for use in liquid crystal displays (LCDs). The nano-patterned silicon mold was fabricated by laser interference lithography. A NP PI layer acted as the homeotropic alignment layer to easily and uniformly align the liquid crystal (LC) molecules. A NP LC cell with a NP PI layer was successfully operated as a vertical aligned LCD, and its performance was evaluated. The threshold voltage and response time of the NP LC cell were 2.472 V and 22.7 ms, respectively. In addition, the NP LC cell was characterized by a high thermal budget. Therefore, the competitive performance of the NP LC cell could allow new approaches to replace the conventional rubbing process in display technology.

Original languageEnglish
Pages (from-to)5610-5614
Number of pages5
JournalSoft Matter
Volume7
Issue number12
DOIs
Publication statusPublished - 2011 Jun 21

Fingerprint

Nanoimprint lithography
Liquid Crystals
polyimides
Polyimides
lithography
liquid crystals
alignment
Liquid crystal displays
cells
Silicon
Threshold voltage
Lithography
Display devices
budgets
threshold voltage
Molecules
Lasers
interference
silicon

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Park, H. G., Lee, J. J., Dong, K. Y., Oh, B. Y., Kim, Y. H., Jeong, H. Y., ... Seo, D. S. (2011). Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography. Soft Matter, 7(12), 5610-5614. https://doi.org/10.1039/c1sm05083d

Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography. / Park, Hong Gyu; Lee, Jong Jin; Dong, Ki Young; Oh, Byeong Yun; Kim, Young Hwan; Jeong, Hae Yoon; Ju, Byeong Kwon; Seo, Dae Shik.

In: Soft Matter, Vol. 7, No. 12, 21.06.2011, p. 5610-5614.

Research output: Contribution to journalArticle

Park, HG, Lee, JJ, Dong, KY, Oh, BY, Kim, YH, Jeong, HY, Ju, BK & Seo, DS 2011, 'Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography', Soft Matter, vol. 7, no. 12, pp. 5610-5614. https://doi.org/10.1039/c1sm05083d
Park, Hong Gyu ; Lee, Jong Jin ; Dong, Ki Young ; Oh, Byeong Yun ; Kim, Young Hwan ; Jeong, Hae Yoon ; Ju, Byeong Kwon ; Seo, Dae Shik. / Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography. In: Soft Matter. 2011 ; Vol. 7, No. 12. pp. 5610-5614.
@article{d584a735a6b84d6d845438fa0d231a39,
title = "Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography",
abstract = "In this paper, nanoimprint lithography was utilized to transfer a nano-pattern (NP) onto a homeotropic polyimide (PI) surface for use in liquid crystal displays (LCDs). The nano-patterned silicon mold was fabricated by laser interference lithography. A NP PI layer acted as the homeotropic alignment layer to easily and uniformly align the liquid crystal (LC) molecules. A NP LC cell with a NP PI layer was successfully operated as a vertical aligned LCD, and its performance was evaluated. The threshold voltage and response time of the NP LC cell were 2.472 V and 22.7 ms, respectively. In addition, the NP LC cell was characterized by a high thermal budget. Therefore, the competitive performance of the NP LC cell could allow new approaches to replace the conventional rubbing process in display technology.",
author = "Park, {Hong Gyu} and Lee, {Jong Jin} and Dong, {Ki Young} and Oh, {Byeong Yun} and Kim, {Young Hwan} and Jeong, {Hae Yoon} and Ju, {Byeong Kwon} and Seo, {Dae Shik}",
year = "2011",
month = "6",
day = "21",
doi = "10.1039/c1sm05083d",
language = "English",
volume = "7",
pages = "5610--5614",
journal = "Soft Matter",
issn = "1744-683X",
publisher = "Royal Society of Chemistry",
number = "12",

}

TY - JOUR

T1 - Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography

AU - Park, Hong Gyu

AU - Lee, Jong Jin

AU - Dong, Ki Young

AU - Oh, Byeong Yun

AU - Kim, Young Hwan

AU - Jeong, Hae Yoon

AU - Ju, Byeong Kwon

AU - Seo, Dae Shik

PY - 2011/6/21

Y1 - 2011/6/21

N2 - In this paper, nanoimprint lithography was utilized to transfer a nano-pattern (NP) onto a homeotropic polyimide (PI) surface for use in liquid crystal displays (LCDs). The nano-patterned silicon mold was fabricated by laser interference lithography. A NP PI layer acted as the homeotropic alignment layer to easily and uniformly align the liquid crystal (LC) molecules. A NP LC cell with a NP PI layer was successfully operated as a vertical aligned LCD, and its performance was evaluated. The threshold voltage and response time of the NP LC cell were 2.472 V and 22.7 ms, respectively. In addition, the NP LC cell was characterized by a high thermal budget. Therefore, the competitive performance of the NP LC cell could allow new approaches to replace the conventional rubbing process in display technology.

AB - In this paper, nanoimprint lithography was utilized to transfer a nano-pattern (NP) onto a homeotropic polyimide (PI) surface for use in liquid crystal displays (LCDs). The nano-patterned silicon mold was fabricated by laser interference lithography. A NP PI layer acted as the homeotropic alignment layer to easily and uniformly align the liquid crystal (LC) molecules. A NP LC cell with a NP PI layer was successfully operated as a vertical aligned LCD, and its performance was evaluated. The threshold voltage and response time of the NP LC cell were 2.472 V and 22.7 ms, respectively. In addition, the NP LC cell was characterized by a high thermal budget. Therefore, the competitive performance of the NP LC cell could allow new approaches to replace the conventional rubbing process in display technology.

UR - http://www.scopus.com/inward/record.url?scp=79959204803&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79959204803&partnerID=8YFLogxK

U2 - 10.1039/c1sm05083d

DO - 10.1039/c1sm05083d

M3 - Article

VL - 7

SP - 5610

EP - 5614

JO - Soft Matter

JF - Soft Matter

SN - 1744-683X

IS - 12

ER -