Electro-optical characteristics in the photoaligned vertical-alignment cell on a photopolymer surfaces containing N-(phenyl)maleimide

Jeoung Yeon Hwang, Dae Shik Seo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A new photoalignment material, PMI5CA, poly{N-(phenyl)maleimide-co-3-[4-(pentyloxy)cinnamate]propyl-2-hydroxy-1-methacr ylate}, was synthesized and the electro-optical (EO) characteristics in the vertical-aligned (VA) photoaligned liquid crystal display (LCD) were studied. Excellent voltage-transmittance (V-T) characteristics were achieved in the photoaligned VA-LCD with polarized UV exposure in an oblique direction (θ = 60°) on PMI5CA surfaces. The transmittance of the photoaligned VA-LCD decreased with increasing UV exposure time. This suggests that the decrease in transmittance in the photoaligned VA-LCD may be attributed to the dissociation of the ester linkages in the cinnamate structure which are photodimerized witch increasing UV exposure time.

Original languageEnglish
Pages (from-to)L58-L61
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume41
Issue number1 A/B
DOIs
Publication statusPublished - 2002 Jan 15

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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