TY - JOUR
T1 - Invisible Display in Aluminum
AU - Prichystal, Jan Phuklin
AU - Hansen, Hans Nørgaard
AU - Bladt, Henrik Henriksen
PY - 2005
Y1 - 2005
N2 - 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 semitransparent
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.
AB - 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 semitransparent
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.
KW - Microtechnology
KW - Aluminium
M3 - Journal article
VL - 5713
SP - 215
EP - 222
JO - Photon Processing in Microelectronic and Photonics, IV (Proc. of SPIE, Bellingham, WA, 2005)
JF - Photon Processing in Microelectronic and Photonics, IV (Proc. of SPIE, Bellingham, WA, 2005)
ER -