Establishment of Integrated Information Displays in Aluminium Surfaces Using Nanomanufacturing

Jan Phuklin Prichystal, Henrik Henriksen Bladt, Hans Nørgaard Hansen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    Bang & Olufsen has been working with a method for manufacturing ultra-thin structures in Aluminium that can be penetrated by light. This has resulted in a patent describing how to obtain this effect by etching of local areas in a solid material. The idea behind an invisible display in Aluminum concerns the processing of a metal workpiece in such a way that micro-cavities are formed from the backside of the workpiece. The micro cavities must not penetrate the metal front side, but an ultra-thin layer of metal is left. It is possible to shine light through this layer. By ordering micro cavities in a matrix, different symbols can be obtained by shining light from the backside of the workpiece. When there is no light from the backside, the front surface seems totally untouched. Three different manufacturing processed were selected to achieve the desired functionality, laser micromachining with ultra-short pulses, selective etching + anodizing, and electrochemical machining.
    Original languageEnglish
    Title of host publicationProc. of The 3rd International Symposium on Nanomanufacturing
    Publication date2005
    Publication statusPublished - 2005
    Event3rd International Symposium on Nanomanufacturing - The University of Cyprus, Nicosia, Cyprus
    Duration: 3 Nov 20055 Nov 2005
    Conference number: 3


    Conference3rd International Symposium on Nanomanufacturing
    LocationThe University of Cyprus


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