Invisible display in aluminum

Jan Phuklin Prichystal; Hans Norgaard Hansen; Henrik Henriksen Bladt

doi:10.1117/12.602043

12 April 2005 Invisible display in aluminum (Invited Paper)

Jan Phuklin Prichystal, Hans Norgaard Hansen, Henrik Henriksen Bladt

Proceedings Volume 5713, Photon Processing in Microelectronics and Photonics IV; (2005) https://doi.org/10.1117/12.602043
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

Bang & Olufsen a/s has been working with ideas for invisible integration of displays in metal surfaces. Invisible integration of information displays traditionally has been possible by placing displays behind transparent or semi-transparent materials such as plastic or glass. The wish for an integrated display in a metal surface is often ruled by design and functionality of a product. The integration of displays in metal surfaces requires metal removal in order to clear the area of the display to some extent. 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. This was achieved by laser ablation with ultra-short pulses.

Citation Download Citation

Jan Phuklin Prichystal, Hans Norgaard Hansen, and Henrik Henriksen Bladt "Invisible display in aluminum (Invited Paper)", Proc. SPIE 5713, Photon Processing in Microelectronics and Photonics IV, (12 April 2005); https://doi.org/10.1117/12.602043

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available