Generation of pretilt angle for nematic liquid crystal using an in situ photoalignment method on polymer surfaces

Dae-Shik Seo, Hyung Kyu Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Generation of pretilt angles in a nematic liquid crystal (NLC) using an in situ photoalignment method with polarized UV exposure during imidization of polyimide (PI) on two kinds of PI surfaces with side chains was investigated. The pretilt angles of NLC generated using the in situ photoalignment method were smaller than those generated using a conventional photoalignment method for a short UV exposure time. Also, the pretilt angles of NLC generated using the in situ photoalignment method increase with increasing UV exposure time on PI surfaces. Finally, the pretilt angles of NLC can be improved by annealing.

Original languageEnglish
JournalJapanese Journal of Applied Physics
Volume39
Issue number10 A
Publication statusPublished - 2000 Oct 1

Fingerprint

Nematic liquid crystals
liquid crystals
polyimides
Polyimides
polymers
Polymers
Annealing
annealing

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "Generation of pretilt angles in a nematic liquid crystal (NLC) using an in situ photoalignment method with polarized UV exposure during imidization of polyimide (PI) on two kinds of PI surfaces with side chains was investigated. The pretilt angles of NLC generated using the in situ photoalignment method were smaller than those generated using a conventional photoalignment method for a short UV exposure time. Also, the pretilt angles of NLC generated using the in situ photoalignment method increase with increasing UV exposure time on PI surfaces. Finally, the pretilt angles of NLC can be improved by annealing.",
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Generation of pretilt angle for nematic liquid crystal using an in situ photoalignment method on polymer surfaces. / Seo, Dae-Shik; Kim, Hyung Kyu.

In: Japanese Journal of Applied Physics, Vol. 39, No. 10 A, 01.10.2000.

Research output: Contribution to journalArticle

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AU - Kim, Hyung Kyu

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N2 - Generation of pretilt angles in a nematic liquid crystal (NLC) using an in situ photoalignment method with polarized UV exposure during imidization of polyimide (PI) on two kinds of PI surfaces with side chains was investigated. The pretilt angles of NLC generated using the in situ photoalignment method were smaller than those generated using a conventional photoalignment method for a short UV exposure time. Also, the pretilt angles of NLC generated using the in situ photoalignment method increase with increasing UV exposure time on PI surfaces. Finally, the pretilt angles of NLC can be improved by annealing.

AB - Generation of pretilt angles in a nematic liquid crystal (NLC) using an in situ photoalignment method with polarized UV exposure during imidization of polyimide (PI) on two kinds of PI surfaces with side chains was investigated. The pretilt angles of NLC generated using the in situ photoalignment method were smaller than those generated using a conventional photoalignment method for a short UV exposure time. Also, the pretilt angles of NLC generated using the in situ photoalignment method increase with increasing UV exposure time on PI surfaces. Finally, the pretilt angles of NLC can be improved by annealing.

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