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Study on Structure of the Disordered Liquid Crystal Phase and Development of Display Materials Exhibiting Electric-field-induced Disorder-order Transition

Research Project

Project/Area Number 22350078
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional materials/Devices
Research InstitutionHirosaki University

Principal Investigator

YOSHIZAWA Atsushi  弘前大学, 大学院・理工学研究科, 教授 (30322928)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2012: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywords液晶材料 / 素子 / ディスプレイ / ブルー相 / 超分子化学 / キラリティー / 液晶 / 電気光学効果 / 階層構造 / 合成化学
Research Abstract

The blue phase stabilization is explained by the large molecular biaxiality. However, no correlation exists between the helical twisting power and the BP temperature range. We prepared a host liquid crystal of a practical nematic liquid crystal mixture and a small amount of a newly designed T-shaped compound. The host liquid crystal doped with a chiral compound produced room-temperature amorphous blue phase III (BPIII). An in-plane-switching cell containing the BPIII material exhibited high transmittance, submillisecond response, and hysteresis-free switching.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (33 results)

All 2013 2012 2011 2010 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (17 results) (of which Invited: 2 results) Book (3 results) Remarks (3 results)

  • [Journal Article] U-shaped oligomers with a molecular biaxiality stabilizing blue phases2013

    • Author(s)
      M. Tanaka, A. Yoshizawa
    • Journal Title

      J. Mater. Chem. C

      Volume: 1 Issue: 2 Pages: 315-320

    • DOI

      10.1039/c2tc00105e

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Liquid Crystal Supermolecules Stabilizing an Optically Isotropic Phase with Frustrated Molecular Organization (Invited Focus Review)2012

    • Author(s)
      A. Yoshizawa
    • Journal Title

      Polymer Journal

      Volume: 44 Issue: 6 Pages: 490-502

    • DOI

      10.1038/pj.2012.55

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biphenyl derivative stabilizing blue phases2011

    • Author(s)
      Y.Kogawa, T. Hirose, A. Yoshizawa, Y. Kogawa
    • Journal Title

      J. Mater. Chem

      Volume: 21 Issue: 47 Pages: 19132-19137

    • DOI

      10.1039/c1jm13299g

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Amorphous Blue Phase III Exhibiting Submillisecond Response and Hysteresis-Free Switching at Room Temperature2011

    • Author(s)
      A. Yoshizawa
    • Journal Title

      M. Kamiyama, T. Hirose, Appl. Phys. Express

      Volume: 4

    • NAID

      10029790473

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chiral effects of blue phase stabilization of a binaphthyl derivative2011

    • Author(s)
      Y. Kogawa, A. Yoshizawa
    • Journal Title

      Liquid Crystals

      Volume: 38 Issue: 3 Pages: 303-307

    • DOI

      10.1080/02678292.2010.544416

    • Related Report
      2012 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biphenyl derivative stabilizing blue phases2011

    • Author(s)
      古川裕太郎、廣瀬鉄、吉澤篤
    • Journal Title

      Journal of Materials Chemistry

      Volume: 21 Pages: 19132-19137

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amorphous blue phase III exhibiting submillisecond response and hysteresis-free switching at room temperature2011

    • Author(s)
      吉澤篤、神山美智、廣瀬鉄
    • Journal Title

      Applied Physics Express

      Volume: 4 Issue: 10 Pages: 101701-101701

    • DOI

      10.1143/apex.4.101701

    • NAID

      10029790473

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amphiphilic liquid crystal possessing a SmA-promoting tail and a SmC promoting core2011

    • Author(s)
      石田宜大
    • Journal Title

      Liquid Crystals

      Volume: 38 Pages: 317-323

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amphiphilic Liquid Crystal Exhibiting the Smectic A to Smectic C Phase Transition without Layer Contraction2011

    • Author(s)
      石田宜大
    • Journal Title

      Appl.Phys.Express

      Volume: 4

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isotropic liquid-ferrielectric smectic C phase transition observed for a chiral nonsymmetric dimer2011

    • Author(s)
      野地杏奈、吉澤篤
    • Journal Title

      Liquid Crystals

      Volume: 38(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 分子構造からみたブルー相発現の要因2012

    • Author(s)
      吉澤篤
    • Organizer
      日本液晶学会ソフトマターフォーラム2012
    • Place of Presentation
      DIC(株)本社(東京都中央区)
    • Year and Date
      2012-06-26
    • Related Report
      2012 Final Research Report
  • [Presentation] ブルー相表示材料のためのネマチック液晶の開発2012

    • Author(s)
      廣瀬鉄
    • Organizer
      2012日本液晶学会討論会
    • Place of Presentation
      千葉大学西千葉キャンパス(千葉市)
    • Related Report
      2012 Final Research Report
  • [Presentation] Molecular Design of Blue Phase Materials2012

    • Author(s)
      Atsushi Yoshizawa
    • Organizer
      The 1st Asian Conference on Liquid Crystals
    • Place of Presentation
      富士カルム(富士吉田市)
    • Related Report
      2012 Final Research Report
  • [Presentation] ブルー相表示材料のためのネマチック液晶の開発2012

    • Author(s)
      廣瀬 鉄
    • Organizer
      2012日本液晶学会討論会
    • Place of Presentation
      千葉大学西千葉キャンパス 千葉市
    • Related Report
      2012 Annual Research Report
  • [Presentation] Molecular Design of Blue Phase Materials2012

    • Author(s)
      Atsushi Yoshizawa
    • Organizer
      The 1st Asian Conference on Liquid Crystals
    • Place of Presentation
      富士カルム 富士吉田市
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 二成分液晶系のブルー相安定性におけるホストーゲスト効果2011

    • Author(s)
      田中雅展
    • Organizer
      2011年日本液晶学会討論会
    • Place of Presentation
      東京都市大学世田谷キャンパス(東京)
    • Year and Date
      2011-09-13
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] ブルーにおける電気光学効果2011

    • Author(s)
      廣瀬鉄
    • Organizer
      2011年日本液晶学会討論会
    • Place of Presentation
      東京都市大学世田谷キャンパス(東京)
    • Year and Date
      2011-09-12
    • Related Report
      2012 Final Research Report
  • [Presentation] ブルー相IIIにおける電気光学効果2011

    • Author(s)
      廣瀬鉄、神山美智、吉澤篤
    • Organizer
      2011年日本液晶学会討論会
    • Place of Presentation
      東京都市大学世田谷キャンパス(東京)
    • Year and Date
      2011-09-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] キラルドーパントのらせん誘起力に及ぼすホストーゲスト効果2011

    • Author(s)
      田中雅展
    • Organizer
      2011年日本液晶学会討論会
    • Place of Presentation
      東京都市大学世田谷キャンパス(東京)
    • Year and Date
      2011-09-11
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 両親媒性液晶が引き起こす層収縮を伴わないSmA-SmC相転移2010

    • Author(s)
      石田宜大
    • Organizer
      2010年日本液晶学会討諭会
    • Place of Presentation
      九州大学医学部百年講堂(福岡市)
    • Year and Date
      2010-09-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] T型液晶オリゴマーにより安定化されたブルー相IIIにおける電気光学効果2010

    • Author(s)
      廣瀬鉄
    • Organizer
      2010年日本液晶学会討論会
    • Place of Presentation
      九州大学医学部百年講堂(福岡市)
    • Year and Date
      2010-09-06
    • Related Report
      2012 Final Research Report 2010 Annual Research Report
  • [Presentation] キラル二量体液晶のフェリ誘電性相発現に及ぼす分子構造の影響2010

    • Author(s)
      野地杏奈
    • Organizer
      2010年日本液晶学会討論会
    • Place of Presentation
      九州大学医学部百年講堂(福岡市)
    • Year and Date
      2010-09-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] Molecular design for stabilizing blue phases2010

    • Author(s)
      Atsushi Yoshizawa
    • Organizer
      27^<th> International Liquid Crystal Conference
    • Place of Presentation
      Krakow, Poland
    • Year and Date
      2010-07-12
    • Related Report
      2012 Final Research Report
  • [Presentation] Molecular design for stabilizing blue phases2010

    • Author(s)
      吉澤篤
    • Organizer
      23^rd International Liquid Crystal Conference
    • Place of Presentation
      Krakow, Poland
    • Year and Date
      2010-07-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] 最近の液晶材料動向-ブルー相を中心として2010

    • Author(s)
      吉澤篤
    • Organizer
      情報ディスプレイ技術研究委員会
    • Place of Presentation
      東京理科大学森戸記念館(東京都新宿区)
    • Year and Date
      2010-06-04
    • Related Report
      2012 Final Research Report 2010 Annual Research Report
  • [Presentation] Electro-optical switching in a blue phase stabilized by a chiral LC system2010

    • Author(s)
      吉澤篤
    • Organizer
      The 2^<nd> International Symposium on Photomobile Materials
    • Place of Presentation
      横浜プリンスホテル(横浜市)
    • Year and Date
      2010-05-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] 分子構造からみたブルー相発現の要因

    • Author(s)
      吉澤 篤
    • Organizer
      日本液晶学会 ソフトマターフォーラム2012“ブルー相を語り合う”
    • Place of Presentation
      DIC本社 東京都中央区
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Book] Design of Blue Phase Materials, in Handbook of Liquid Crystals Vol. 3 (2nd Edition)2013

    • Author(s)
      Isa Nishiyama, Atsushi Yoshizawa
    • Publisher
      Wiley-VCH Verlag GmbH & Co.
    • Related Report
      2012 Final Research Report
  • [Book] Handbook of Liquid Crystals Vol. 3 (2nd Edition)2013

    • Author(s)
      Isa Nishiyama
    • Publisher
      Wiley-VCH Verlag GmbH & Co. KGaA
    • Related Report
      2012 Annual Research Report
  • [Book] Ferroelectrics/Book 2(分担執筆)2011

    • Author(s)
      吉澤篤、野地杏奈
    • Publisher
      In Tech-Open Access Publisher(印刷中)
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.st.hirosaki-u.ac.jp/~lclab/

    • Related Report
      2012 Final Research Report
  • [Remarks] 吉澤鷺坂研究室ホームページ

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.st.hirosaki-u.ac.jp/~lclab/

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2019-07-29  

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