Vertically aligned liquid crystal mode on UV-cured reactive mesogen using imprinting method

Hak Moo Lee, Hyung Koo Chung, Hong Gyu Park, Dae-Shik Seo

Research output: Contribution to journalArticle

Abstract

We report a novel imprinting method employing an ultraviolet (UV) cured reactive mesogen (RM) hardened in a homeotropic orientation. During UV curing, selectively photopolymerized bonds were created and RM molecules were aligned vertically. Based on X-ray photoelectron spectroscopy (XPS) results, we confirmed than an increased atomic percentage of the alignment layer was made from the RM, which was UV cured using the imprinting method. The measurement of retardation showed the anisotropic nature of the imprinted substrates. Also, vertically aligned (VA) liquid crystal (LC) cells created by this imprinting method showed superior electro-optic (EO) properties as compared with the rubbing method.

Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalOptical Materials Express
Volume5
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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