Guardian Europe S.a.r.l.

Guardian Glass, LLC

Jochen Butz

Allen Chu

Uwe Kriltz

Bernd Disteldorf

Istvan Szirbik

Nikolett Hegedus

Richard Vernhes

A coated article including a first antireflective (AR) coating supported by a glass substrate, wherein the first coating may include, moving away from the glass substrate: a dielectric first high index layer; a dielectric first low index layer; a dielectric second high index layer; a dielectric second low index layer comprising an oxide of silicon; a dielectric third high index layer comprising an oxide of niobium; a dielectric first medium index layer, wherein the third high index layer comprising the oxide of niobium is located between and directly contacting the second low index layer comprising the oxide of silicon and the first medium index layer; a dielectric third low index layer; and an overcoat layer; wherein the first coating contains no IR reflecting layer based on silver and/or gold; wherein, from the perspective of a viewer of the coated article, the first coating may be configured so that the coated article has a film side reflective ΔE* value of no greater than 3.0 upon heat treatment of at least about 580 degrees C. The ΔE* value(s) may be measured either with a substantially symmetrical/similar AR coating on the other side of the same glass substrate, or absent any AR coating on the other side of the glass substrate.

Heat treatable coated article having antireflective coating(s) on substrate

A low-E (low emissivity) coating includes a multilayer overcoat designed for reducing fingerprints. The multilayer overcoat includes a layer comprising an oxide of zirconium (e.g., ZrO) sandwiched between and contacting first and second layers of or including silicon nitride (e.g., SiN, SiON, SiZrON, or the like). The uppermost layer comprising silicon nitride modifies the surface energy of the layer comprising the oxide of zirconium so as to make the uppermost surface of the coating more hydrophilic, thereby reducing or minimizing interaction between zirconium oxide and finger oil to reduce fingerprints on the uppermost surface of the coating.

Coated article with IR reflecting layer and multilayer overcoat for reducing fingerprints

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Bertrange, Luxembourg

Jochen Butz