Nanoporous anodic aluminum oxide (AAO) templates are fabricated using an anodization method. The mean diameter
of the nanoporous anodic aluminum oxide templates is 100 nm. A molded plastic thin film with nano-structure is
fabricated using AAO template as a mold insert by nanoimprint. The surface properties of the molded plastic thin film
obtained using various processing parameters in nanoimprint are discussed. The contact angle of the molded
polycarbonate (PC) thin film with the nano-structure exceeds that without the nano-structure. The molded PC thin film
(with nano-structure) with a hydrophobic surface is formed, and has a water contact angle of 128.5°. The use of anodic
aluminum oxide to prepare a mold insert for nanoimprint supports the formation of a nano-structure in the molded PC
thin film, and effectively increases its reflectance.
This research points out the brightness field and luminance distribution of the microstructure of a light guiding plate by
micro injection molding (MIM) and micro injection-compression molding (MICM). The process of a light guiding plate
includes photo-etching, micro molding techniques (MIM and MICM), and optical field measurement. The results show
that the luminance of microstructure of light guiding plate made by MICM is better than those made by MIM. The
results also indicate the most important processing parameter is the mold temperature for the luminance distribution of
light guiding plate whether made by MIM or MICM. The maximum luminance of the light guiding plate is the 80 Nit
(cd/m2) on micro molding. The brightness field distribution of light guiding plate made by MICM is more uniform than
those made by MIM for the same processing parameters. The micro injection-compression molding is a more suitable
process than micro injection molding for the fabrication of light guiding plate on a backlighting unit.
Conference Committee Involvement (1)
Sixth Asia Pacific Conference on Optics Manufacture (APCOM2019)
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