Polarized UV cured reactive mesogens for fast switching and low voltage driving liquid crystal device

Hyung Koo Chung, Won Kyu Lee, Hong Gyu Park, Hak Moo Lee, Hae Chang Jeong, Min Cha Cho, Dae Shik Seo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Uniaxial alignment of liquid crystals (LCs) is prerequisite for a vast number of LC applications. To accomplish stable and uniform LC orientation, an alignment process to orient the LCs is required. Herein, we demonstrate a simple strategy for fabricating novel LC alignment layers that ensures well aligned LC, superior switching without any capacitance hysteresis, low transmittance loss, and high thermal stability with sufficient anchoring action. Thin films of reactive mesogens (RMs) were transferred onto conventional homeotropic polyimides from a UV-cured RM stamp via contact printing. LC displays using defect free RM/PI polymeric stacks exhibited superior electro-optic (EO) properties to those containing rubbed PI layers. This approach allows for the fabrication of various-mode LC displays such as twisted nematic (TN), in-plane switching (IPS), and optically compensated bend (OCB) mode LCDs by changing the combinations of RMs, base PIs and LCs.

Original languageEnglish
Pages (from-to)21551-21559
Number of pages9
JournalOptics Express
Volume22
Issue number18
DOIs
Publication statusPublished - 2014 Sep 8

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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