The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
Nov. 04, 2003
Jens Christoph Thies, Maastricht, NL;
Edwin Currie, Sittard, NL;
Guido Jozefina Wilhelmus Meijers, Stein, NL;
Jens Christoph Thies, Maastricht, NL;
Edwin Currie, Sittard, NL;
Guido Jozefina Wilhelmus Meijers, Stein, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
Single layer anti-reflective hard-coat and methods of making same are disclosed and in particular comprise a structured surface, preferably a nano-structured surface. The hard-coat preferably a hardness above 0.5 GPa, more preferably above 0.7 GPa and most preferably above 1.0 GPa as measured by nano-indentation and/or a reduced tensile modulus above 3 GPa, more preferably above 8.5 GPa or 20 GPa, most preferably above 40 GPa as measured by nano-indentation and/or a scratch resistance above 5 mJ μm-3, preferably above 15 or 30 mJ μm-3, preferably above 60 mJ μm-3 as measured by nano-indentation, and/or contains an amount of inorganic nano-particles from 5 to 75 weight %, preferably from 15 to 50 weight % relative to the weight of the second material present in the hard-coat. Preferably, the spatial length scale of the refractive index gradient in the single layer hard-coat is between 10 and 1000 nm; in particular between 100 and 200 nm.