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)


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
Issue number3
Publication statusPublished - 2011 Apr 15


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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