Phase separation of monomer in liquid crystal mixtures and surface morphology in polymer-stabilized vertical alignment liquid crystal displays

Jae Jin Lyu, Hirotsugu Kikuchi, Dae Hyun Kim, Jun Hyup Lee, Kyeong Hyeon Kim, Hiroki Higuchi, Seung Hee Lee

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The polymer-stabilized vertically aligned (PS-VA) liquid crystal display (LCD) driving mode has high potential for manufacturing low power consuming displays due to the higher transmittance and fast response as compared with the existing patterned vertically aligned and multi-domain vertically aligned modes. In this paper we have investigated the reaction mechanisms of monomer-liquid crystal blends to form a surface pre-tilt angle of liquid crystal in vertical alignment LCD associated with a fishbone electrode structure. The observed sizes of polymer bumps formed on the substrates were found to be dependent on the exposed UV wavelength and were almost equal in both top and bottom substrates. When a large UV wavelength was used, the phase separation mechanism of monomer in PS-VA mode was found nearly isotropic rather than anisotropic in contrast to the previous studies.

Original languageEnglish
Article number325104
JournalJournal of Physics D: Applied Physics
Volume44
Issue number32
DOIs
Publication statusPublished - Aug 17 2011

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Liquid Crystals
Liquid crystal displays
Phase separation
Liquid crystals
Surface morphology
Polymers
monomers
Monomers
liquid crystals
alignment
polymers
Wavelength
Substrates
Display devices
wavelengths
transmittance
Electrodes
manufacturing
electrodes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

Phase separation of monomer in liquid crystal mixtures and surface morphology in polymer-stabilized vertical alignment liquid crystal displays. / Lyu, Jae Jin; Kikuchi, Hirotsugu; Kim, Dae Hyun; Lee, Jun Hyup; Kim, Kyeong Hyeon; Higuchi, Hiroki; Lee, Seung Hee.

In: Journal of Physics D: Applied Physics, Vol. 44, No. 32, 325104, 17.08.2011.

Research output: Contribution to journalArticle

Lyu, Jae Jin ; Kikuchi, Hirotsugu ; Kim, Dae Hyun ; Lee, Jun Hyup ; Kim, Kyeong Hyeon ; Higuchi, Hiroki ; Lee, Seung Hee. / Phase separation of monomer in liquid crystal mixtures and surface morphology in polymer-stabilized vertical alignment liquid crystal displays. In: Journal of Physics D: Applied Physics. 2011 ; Vol. 44, No. 32.
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