Thermally Stable Binary Optical Films Based on Photocrosslinkable Liquid Crystalline Polymers Containing Azodyes

We developed thermally stable binary optical films based on azodye-containing liquid crystalline polymers (ACLCPs) through two-step exposure of linearly polarized light with the wavelength of 488 nm together with subsequent exposure for photo-crosslinking by ultraviolet light under nitrogen atmosphe...

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Bibliographic Details
Published inMolecular Crystals and Liquid Crystals Vol. 511; no. 1; pp. 265/[1735] - 271/[1741]
Main Authors Lim, Yong-Woon, Kwak, Chang-Hwan, Lee, Wonsuk, Lee, Sin-Doo
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis Group 01.01.2009
Taylor & Francis Ltd
Subjects
azodye-doped
binary optical film
Flat panel displays
Liquid crystal polymers
liquid crystalline polymer (LCP)
Materials science
Optics
photo-alignment
thermal stability
Ultraviolet radiation
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Summary:We developed thermally stable binary optical films based on azodye-containing liquid crystalline polymers (ACLCPs) through two-step exposure of linearly polarized light with the wavelength of 488 nm together with subsequent exposure for photo-crosslinking by ultraviolet light under nitrogen atmosphere. Our fabricated optical films with two in-plane optic axes showed high thermal durability and little degradation of optical efficiency less than 5% at 200°C. Due to the large birefringence acquired during the photo-alignment, the binary optical films can be used as a variety of patterned retarders for mobile display applications.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421400903054337