B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/30 (2006.01) B29C 59/02 (2006.01) B29C 59/04 (2006.01) B32B 27/08 (2006.01) G02B 5/28 (2006.01) G03F 7/00 (2006.01) G03G 5/10 (2006.01) G03G 7/00 (2006.01)
Patent
CA 2209852
An embossed substrate (21) comprising a substrate (22) of a plastic material and having a surface and an embossed surface (62) carried by the surface of the substrate. The embossed surface (62) is characterized by having a pattern with an average roughness of between 100 nanometers and 300 nanometers with the roughness being distributed substantially uniformly over the surface (62), the pattern has ridges and valleys with the horizontal distance between adjacent ridges and/or valleys being greater than the depth between the ridges and the valleys. The peaks and the valleys are randomly disposed without periodicity to cause diffusion of light impinging thereon to minimize or eliminate interference effects when the embossed surface (62) overcoated with thin planar organic layers is exposed to light.
Substrat en relief (21) fait d'un substrat (22) en plastique constitué d'une première surface servant de support à une surface en relief (62). Celle-ci se caractérise par le fait qu'elle présente un motif dont la rugosité moyenne, assez uniforme sur l'ensemble de la surface (62), est comprise entre 100 et 300 nanomètres. Ce motif est fait de crêtes et de creux, la distance horizontale entre des crêtes et/ou des creux contigus étant supérieure à la distance verticale entre une crête et un creux. Ces crêtes et ces creux sont disposés au hasard, sans régularité, pour que la diffusion de la lumière, en les frappant, ne subisse pas d'effet d'interférence lorsque cette surface en relief (62) revêtue de minces couches organiques planes est exposée à la lumière.
Flex Products Inc.
Smart & Biggar
LandOfFree
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