Design and fabrication of micro optical film by ultraviolet roll imprinting

Suho Ahn, Minseok Choi, Hyungdae Bae, Jiseok Lim, Ho Myung, Hongmin Kim, Shinill Kang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

With increasing demand for large-scale functional optical films with microstructure in the field of flat panel displays, a technology capable of fabricating large-scale polymeric micro-patterns has received much attention. To fabricate large-area micro-optical films, we designed and constructed an ultraviolet roll imprinting system consisting of a roll stamp, a material dispensing unit, a pair of flattening rollers, a contact roller, and a releasing roller. Two methods for fabricating roll stamps were considered: direct machining of the roll base and wrapping a flat stamp around the roll base. As practical examples of the roll imprinting process, we designed and fabricated a lenticular lens array, a pyramidal pattern, and a microlens array, and measured and analyzed their geometrical and optical properties. Our results suggest that the proposed UV roll imprinting process is a feasible method for mass producing large-scale functional optical films.

Original languageEnglish
Pages (from-to)5478-5484
Number of pages7
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number8 B
DOIs
Publication statusPublished - 2007 Aug 23

Fingerprint

Optical films
Fabrication
fabrication
rollers
Flat panel displays
Lenses
Machining
Optical properties
Microstructure
flat panel displays
releasing
flattening
machining
lenses
optical properties
microstructure

All Science Journal Classification (ASJC) codes

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

Cite this

Ahn, Suho ; Choi, Minseok ; Bae, Hyungdae ; Lim, Jiseok ; Myung, Ho ; Kim, Hongmin ; Kang, Shinill. / Design and fabrication of micro optical film by ultraviolet roll imprinting. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2007 ; Vol. 46, No. 8 B. pp. 5478-5484.
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Design and fabrication of micro optical film by ultraviolet roll imprinting. / Ahn, Suho; Choi, Minseok; Bae, Hyungdae; Lim, Jiseok; Myung, Ho; Kim, Hongmin; Kang, Shinill.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 46, No. 8 B, 23.08.2007, p. 5478-5484.

Research output: Contribution to journalArticle

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