Improvement in planar orientation of the polymer-stabilized cholesteric liquid crystal cells

Ching Jui Tien, Chi Yen Huang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We investigate the effects of thermal annealing on the improvement in the planar orientation of the polymer-stabilized cholesteric liquid crystal (CLC) cell. The obtained results reveal that annealing the CLC/monomer mixture at the CLC-isotropic transition temperature (Tci) effectively reduces the viscosity of the CLC/monomer mixture, accelerating the annihilation of oily streaks. Increasing the annealing time effectively removes the oily streaks, giving the polymer-stabilized CLC cell a high transmittance and a sharp stop band edge. An 8-μm-thick polymer-stabilized CLC cell with a defect-free planar texture is achieved when the annealing time of the cell exceeds 10 min.

Original languageEnglish
Pages (from-to)8515-8517
Number of pages3
JournalJapanese Journal of Applied Physics
Volume47
Issue number11
DOIs
Publication statusPublished - 2008 Nov 14

Fingerprint

Cholesteric liquid crystals
liquid crystals
polymers
Polymers
cells
Annealing
annealing
monomers
Monomers
Superconducting transition temperature
transmittance
textures
Textures
transition temperature
Viscosity
viscosity
Defects
defects

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "We investigate the effects of thermal annealing on the improvement in the planar orientation of the polymer-stabilized cholesteric liquid crystal (CLC) cell. The obtained results reveal that annealing the CLC/monomer mixture at the CLC-isotropic transition temperature (Tci) effectively reduces the viscosity of the CLC/monomer mixture, accelerating the annihilation of oily streaks. Increasing the annealing time effectively removes the oily streaks, giving the polymer-stabilized CLC cell a high transmittance and a sharp stop band edge. An 8-μm-thick polymer-stabilized CLC cell with a defect-free planar texture is achieved when the annealing time of the cell exceeds 10 min.",
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Improvement in planar orientation of the polymer-stabilized cholesteric liquid crystal cells. / Tien, Ching Jui; Huang, Chi Yen.

In: Japanese Journal of Applied Physics, Vol. 47, No. 11, 14.11.2008, p. 8515-8517.

Research output: Contribution to journalArticle

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