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Basic Research on Structures and Materials of Rubber-Like Liquid Crystal Displays

Research Project

Project/Area Number 26630143
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Electron device/Electronic equipment
Research InstitutionTohoku University

Principal Investigator

FUJIKAKE HIDEO  東北大学, 工学(系)研究科(研究院), 教授 (20643331)

Co-Investigator(Kenkyū-buntansha) ISHINABE Takahiro  東北大学, 大学院工学研究科, 准教授 (30361132)
Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsフレキシブルディスプレイ / 液晶ディスプレイ / 液晶・高分子複合膜 / 光重合相分離 / 分子配向制御 / 配向制御
Outline of Final Research Achievements

In future information-based society, a rubber-like super-flexible display is expected for providing various information in all living environment. To realize a substrate-free super-flexible liquid crystal display with high-contrast image and its fabrication process, we irradiated a molecular-aligned solution of liquid crystal and monomer in substrate gap with patterned ultra-violet light. As a result, a phase-separated composite film of liquid crystal and polymer was formed, where molecular alignment was not changed. In this composite film, liquid crystal droplets were formed in polymer with twisted alignment, and light modulation effect was confirmed under applied voltage. We could control liquid crystal droplet morphology, by changing ultra-violet intensity, solution temperature and optical mask pattern in curing polymer. The self-standing composite film, which was formed with more-rigid polymer and thin surface-reinforcing films, could be exfoliated from glass substrates.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2015

All Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Morphological Control of the Liquid Crystal Droplets in Molecular-Aligned Polymer for Substrate-Free LCDs2015

    • Author(s)
      Hideo Fujikake, Takahiro Ishinabe, Daisuke Sasaki
    • Organizer
      International Display Workshops
    • Place of Presentation
      大津プリンスホテル(滋賀県大津市)
    • Year and Date
      2015-12-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 配向高分子中に析出する液晶滴の凝集形態制御2015

    • Author(s)
      藤掛英夫、石鍋隆宏、佐々木大介
    • Organizer
      日本液晶学会討論会
    • Place of Presentation
      東京工業大学(神奈川県横浜市)
    • Year and Date
      2015-09-07
    • Related Report
      2015 Annual Research Report
  • [Presentation] 基板レス液晶ディスプレイの実現に向けた液晶・高分子配向複合膜の相分離制御2015

    • Author(s)
      藤掛英夫、石鍋隆宏、佐々木大介
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Year and Date
      2015-03-11
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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