Realization of vertical alignment with low pretilt angle by polymer-stabilize technique

被引:2
|
作者
Maruyama, Kazunori
Houryu, Takeshi
Iimura, Yasufumi
机构
[1] Tokyo Univ Agr & Technol, Fac Technol, Koganei, Tokyo 184, Japan
[2] Technol Res Assoc Adv Display Mat, TRADIM, Koganei, Tokyo 184, Japan
关键词
photo alignment; polymer-stabilized; VA-LC;
D O I
10.2494/photopolymer.19.157
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A polymer-stabilized technique with a bias voltage (BPS) combined with a photo-alignment method has been applied for a vertical LC alignment to achieving stable and uniform pretilt angle as low as 80deg. An initially-pretilted vertically-aligned LC medium produced by a photo-alignment method, which is doped with a small amount of UV-curable monomer, is followed by a BPS method for further increase of the pretilt angle. The achieved pretilt angle as low as 80deg. by the combined method is very stable and uniform. This result clearly demonstrates the usefulness of the present BSP method to achieve very low pretilt angle for vertical LC alignment.
引用
收藏
页码:157 / 162
页数:6
相关论文
共 23 条
  • [1] Application of photo-alignment technique for low pretilt angle liquid crystal cell
    Moon, JH
    Song, DM
    Ryu, KY
    Shin, DM
    Kim, Y
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2001, 371 : 439 - 442
  • [2] Control of liquid crystal director through defined pretilt angle in vertical alignment mode surrounded by polymer wall
    Kim, Sung Min
    Kim, Sang Gyun
    Kim, Youn Sik
    Lee, Hee Kyu
    Lee, Myong-Hoon
    Lee, Gi Dong
    Lyu, Jae Jin
    Kim, Kyeong Hyeon
    Lee, Seung Hee
    2007 SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS, VOL XXXVIII, BOOKS I AND II, 2007, 38 : 742 - +
  • [3] Surface Alignment with High Pretilt Angle Using the Photoreactive Fluorinated Polymer Films
    Wu, Hsin-Ying
    Wang, Chih-Yu
    Lin, Chia-Jen
    Pan, Ru-Pin
    Lin, Song-Shiang
    Lee, Chein-Dhau
    Kou, Chwung-Shan
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2009, 507 : 290 - 300
  • [4] A theoretical model of induced high pretilt angle by mixture of vertical and horizontal alignment materials
    Kudoh, Yukihiro
    Takahashi, Taiju
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2017, 647 (01) : 51 - 55
  • [5] Polymer-stabilized pretilt angle on the surface of nanoparticle-induced vertical-alignment surface for multi-domain vertical-alignment liquid-crystal display
    Kim, Dae Hyun
    Kwon, Dong Won
    Gim, Hye Young
    Jeong, Kwang-Un
    Lee, Seung Hee
    Jeong, Yeon Hak
    Ryu, Jae Jin
    Kim, Kyeong Hyeon
    JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY, 2011, 19 (05) : 417 - 422
  • [6] A Technique for determining the director pretilt angle in cells with hybrid or homeotropic alignment of a nematic liquid crystal
    D. A. Vakulin
    Technical Physics Letters, 2015, 41 : 1116 - 1119
  • [7] A Technique for determining the director pretilt angle in cells with hybrid or homeotropic alignment of a nematic liquid crystal
    Vakulin, D. A.
    TECHNICAL PHYSICS LETTERS, 2015, 41 (12) : 1116 - 1119
  • [8] Control of pretilt angle and its direction in homeotropic alignment of liquid crystals using photoalignment technique
    Li, Hai Feng
    Kim, Eung Jin
    Furue, Hirokazu
    Iimura, Yasufumi
    Kobayashi, Shunsuke
    Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 1999, 326 : 249 - 257
  • [9] Control of Pretilt Angle and its Direction in Homeotropic Alignment of Liquid Crystals Using Photoalignment Technique
    Li, Hai Feng
    Kim, Eung Jin
    Furue, Hirokazu
    Ilmura, Yasufumi
    Kobayashi, Shunsuke
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1999, 326 : 249 - 257
  • [10] Pretilt Angle Control for Single Cell Gap Transflective Liquid Crystal Cells in Vertical Alignment Mode
    Jeon, Eun Jeong
    Kim, Seong Su
    Lim, Young Jin
    Jo, Eun Mi
    Choi, Yu Jin
    Lee, Myoung-Hoon
    Chung, Tai Joo
    Lee, Seung Hee
    28TH INTERNATIONAL DISPLAY RESEARCH CONFERENCE, 2008, : 141 - 143