Orientational control of liquid crystal molecules by reformed poly(dimethylsiloxane) alignment layer via ion-beam irradiation

Hee Jun Lee, Young Hwan Kim, Jong Jin Lee, Hong Gyu Park, Seok Yang, Byoung Yong Kim, Yang Doo Lee, Byeong Kwon Ju, Dae Shik Seo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We introduce an alternative approach to making a reformed PDMS layer as a pretilt controllable alignment layer, which can be used in the vertical alignment (VA) and twisted nematic (TN) modes, by varying the ion beam (IB) energy. Depending on different the dielectric anisotropy of surfaces, PDMS layers have been demonstrated to align LC molecules homogeneously and homeotropically. The electro-optic characteristics of aligned VA and TN-LCD based on PDMS layer were comparable to those of VA and TN-LCD based on polyimide, showing good potential of PDMS film as an alignment layer.

Original languageEnglish
Pages (from-to)628-631
Number of pages4
JournalMaterials Chemistry and Physics
Volume126
Issue number3
DOIs
Publication statusPublished - 2011 Apr 15

Fingerprint

Liquid Crystals
Polydimethylsiloxane
Liquid crystals
Ion beams
ion beams
liquid crystals
alignment
Irradiation
Molecules
irradiation
molecules
Liquid crystal displays
Electrooptical effects
polyimides
Polyimides
electro-optics
surface layers
Anisotropy
baysilon
anisotropy

Keywords

  • Dielectric anisotropic
  • Ion beam
  • Liquid crystal
  • Polydimethylsiloxane
  • Pretilt angle

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Orientational control of liquid crystal molecules by reformed poly(dimethylsiloxane) alignment layer via ion-beam irradiation. / Lee, Hee Jun; Kim, Young Hwan; Lee, Jong Jin; Park, Hong Gyu; Yang, Seok; Kim, Byoung Yong; Lee, Yang Doo; Ju, Byeong Kwon; Seo, Dae Shik.

In: Materials Chemistry and Physics, Vol. 126, No. 3, 15.04.2011, p. 628-631.

Research output: Contribution to journalArticle

Lee, Hee Jun ; Kim, Young Hwan ; Lee, Jong Jin ; Park, Hong Gyu ; Yang, Seok ; Kim, Byoung Yong ; Lee, Yang Doo ; Ju, Byeong Kwon ; Seo, Dae Shik. / Orientational control of liquid crystal molecules by reformed poly(dimethylsiloxane) alignment layer via ion-beam irradiation. In: Materials Chemistry and Physics. 2011 ; Vol. 126, No. 3. pp. 628-631.
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AU - Yang, Seok

AU - Kim, Byoung Yong

AU - Lee, Yang Doo

AU - Ju, Byeong Kwon

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