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Proceedings Paper

Plasma-polymerization-deposited transparent protective coating for plastic display window
Author(s): Daoyang Huang; Rung-Ywan Tsai; Fang Chung Ho
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Paper Abstract

The technique of mid-frequency plasma polymerization was employed to deposit scratch-resistant and anti-fogging films on transparent polycarbonate substrates. The input monomer used for depositing scratch-resistant coatings was tetramethyldisiloxane (TMDSO). Variation of oxygen-to-TMDSO ratio study indicated that the hardest film was formed using equal amount of oxygen and TMDSO. The typical deposition rate was about 3 micrometers /hr. Typical operation pressure, TMDSO flow and oxygen flow were 2 X 10-2 Torr, 30 sccm and 30 sccm, respectively. The deposited polysiloxane layer was characterized as a hard, highly transparent and durable against scratching and abrasion film. Further depositing a thin hydrophilic film on top of the polysiloxane layer significantly improved the surface wettability and therefore dramatically increased the anti-fogging capability. The monomer used for polymerization deposition of the anti- fogging film was vinyl acetate, and the typical flow for vinyl acetate monomer and oxygen were 15 sccm and 10 sccm, respectively.

Paper Details

Date Published: 30 September 1996
PDF: 7 pages
Proc. SPIE 2892, Display Devices and Systems, (30 September 1996); doi: 10.1117/12.253332
Show Author Affiliations
Daoyang Huang, Industrial Technology Research Institute (Taiwan)
Rung-Ywan Tsai, Industrial Technology Research Institute (Taiwan)
Fang Chung Ho, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 2892:
Display Devices and Systems
Eric G. Lean; Zhiren Tian; Bao Gang Wu, Editor(s)

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