Contents

Voume 5 Number 2 (2001)

Preface ---- Academic Society and Enterprises
Shohei NAEMURA
1
Review ---- The Characteristics and trend of sealant for Liquid crystal display
Kenji ITOU and takahisa MIYAWAKI
3
---- Properties of Liquid Crystals under a Polarized Microscope
Yoichi TAKANISHI
12
---- Liquid Crystal phases and molecular shapes
Keiko AOKI
33
Special Lecture ---- Full-Color Technology of LCD's
Hidehiro SEKI
39
Reports from Universities and Institutions ---- Uchida Lab., Tohoku University
Tatsuo UCHIDA
48
Conference Report ---- 2000 Japanese Liquid Crystal Conference
Seiji UJIIE
52
---- Technical Report of SPIE, photonics west 2001
Shunji SUZUKI
54
---- The 56th Annual Meeting of the Physical Society of Japan
Yasuyuki KIMURA
57
---- The 79th spring Meeting of the Chemical Society of Japan
Kazuya SAITO
58
---- Report on the 48th spring Meeting of the Japan Society of Applied Physics and Rela fed societies
Masayoshi SUZUKI
60
Introduction of Doctorate Dissertations ---- Study of Photocarrier Generation in Liquid Crystalline Photoconductors
Hong Zhang
62
---- Synthesis of Fluoro Substituted Ferroelectric Liquid Crystals and Their Application to Display
Asep Riswoko
63
---- Nano-hybrid Materials Composed of Azobenzene-containing polymers and Liquid Crystals
Takashi UBUKATA
64
---- Dielectric and Electrooptical Responses in Smectic Liquid Crystals and Their Application to Flat Panel Displays
Teiyu SAKO
65
---- Preparation of Liquid-Crystalline Complexs and Their Application to Ion Conductive Materials
Toshihiro OHTAKE
66
---- Synthetic Studies on Fluorine-containing Novel Liquid-Crystalline Materials
Kiyoshi KANIE
67
---- English Abstracts 68
JLCS Announcements ---- 69


Abstructs of Reviews


The Characteristics and trend of sealant for Liquid crystal display
Kenji ITOU and takahisa MIYAWAKI
Mitsui Chemical Co., Ltd
580-32 Nagaura, Sodegaura, Chiba 299-0265 JAPAN
E-mail: Kenji.Itou@mitusi-chem.co.jp

Abstract : Sealant for liquid crystal displays (LCD sealant) is one of the most important LC materials. In spite that its quantity in the LCD composition is very low, LCD sealant closely relates to the reliability of devices because LCD sealant is in direct contact with the liquid crystal. In recent years, the more advanced the LCD technology is, the LCD sealant is required to be more sophisticated and diverse. In this paper, we discuss LCD sealants using examples for our epoxy resin type LCD sealant "STRUCTBOND TM". The following topics will be discussed : 1. The application methods. 2. The recent needs and characteristics (stress relaxation technology, adaptability to cell - gap former processes, and recent demand by changing the LCD technology). 3. Future trends (approach for smectic type LCD, sealant for plastic LCD and the sealant for UV curing type).
Keywords : LCD sealant, Stress relaxation, Smectic type LC, Plastic LCD, UV curing type

Properties of Liquid Crystals under a Polarized Microscope
Yoichi TAKANISHI
Graduate Schools, Tokyo Institute of Technology
2-12-1 Oookayama, Meguro, Tokyo 152-8552 JAPAN
E-mail: ytakanis@o.cc.titech.ac.jp

Abstract : Liquid crystals show optical anisotropy, and exhibit a lot of phase under a polarized microscope. Since each liquid crystalline phase forms characteristic structures and defects, and its textures reflect them, the textures include much information about molecular orientation, layer structures and optical properties of the liquid crystalline phases.
Therefore, microscopic observation is one of the most powerful techniques to investigate liquid crystals. In this paper, various textures of liquid crystalline phases (nematic, SmA, SmC(*), and SmCA()) observed under a polarized microscope are observed, and the relation between the textures and structures are expounded.
Keywords : Texture, Nematic, Smectic, Defect

Liquid Crystal phases and molecular shapes
Keiko AOKI
NANOLC, JST
5-9-9 Toukoudai, Tsukuba, Ibaragi 300-2635 JAPAN
E-mail: keiko@nanolc.jst.go.jp

Abstract : Recent theory and simulations are reviewed in relation to how the molecular shape anisotropy give rise to liquid crystal phases.
Keywords : Liquid crystal phase transition, Shape anisotropy, Theory, Simulation