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Journal Article Preparation and Characteristics of PMMA Microlens Array for a BLU Application by An Inkjet Printing Method
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Authors
Yong Suk Yang, Youn Doo Hyeb, Kim Seong Hyun, Lim Sang Chul, Hyo Sun Shim, Kang Seung Youl, In-Kyu You
Issue Date
201001
Source
Molecular Crystals and Liquid Crystals, v.520 no.1, pp.239-244
ISSN
1542-1406
Publisher
Taylor & Francis
DOI
https://dx.doi.org/10.1080/15421400903584515
Abstract
In this study, poly(methyl methacrylate)(PMMA) microlens array for a back light unit(BLU) application was fabricated by an inkjet printer, which loaded piezoelectric microchannel mounted 30m nozzles to deposit polymer droplets via drop-on-demand fashion. Before the inkjet printing, the surface of PMMA substrates was modified chemically by a phase separation technique. The surface topologies and aspect ratios of microlens were measured. A 5.2 × 7cm 2 BLU plate with microlens arrays printed by the inkjet method was fabricated for the application of a mobile phone.
KSP Keywords
Back light unit, Drop-on-demand(DOD), Inkjet printer, Microlens array, PMMA substrates, Printing method, Surface topology, aspect ratio, inkjet printing, methyl methacrylate(Macroporous poly), mobile phone