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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, Doo-Hyeb Youn, Seong Hyun Kim, Sang Chul Lim, Hyo Sun Shim, Seong Youl Kang, In-Kyu You
- Issue Date
- 2010-01
- Citation
- Molecular Crystals and Liquid Crystals, v.520, no.1, pp.239-244
- ISSN
- 1542-1406
- Publisher
- Taylor & Francis
- Language
- English
- Type
- Journal Article
- 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, Inkjet printing, Microlens array, PMMA substrates, Printing method, Surface topology, aspect ratio, methyl methacrylate(Macroporous poly), mobile phone