Low-E matchable coated articles and methods of making same
First Claim
1. A method of making a heat treated coated article, the method comprising:
- providing a glass substrate;
forming a multi-layer coating on the glass substrate, the multi-layer coating having a sheet resistance of no greater than 20 ohms/square, and wherein the coating comprises at least one layer comprising silver sandwiched between at least first and second dielectric layers; and
heat treating the glass substrate with the multi-layer coating thereon so that the heat treated coated article has a glass side Δ
E* value of no greater than 2.5.
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Accused Products
Abstract
A heat treatable coated article including an infrared (IR) reflecting layer (e.g., of or including Ag), the coated article being able to attain a ΔE* (glass side) no greater than about 3.0, more preferably no greater than 2.5, and even more preferably no greater than 2.0, following or due to heat treatment (e.g., thermal tempering). Accordingly, low-E (i.e., low emissivity) coated articles of certain embodiments of this invention appear from the glass side thereof visually similar to the naked eye both before and after heat treatment. Coated articles herein may be used in the context of insulating glass (IG) window units, vehicle windshields, or any other suitable applications. In certain embodiments of this invention, an exemplary layer stack includes: glass/Si3N4/NiCr/Ag/NiCr/Si3N4. Other materials may instead be used without departing from the scope and/or spirit of the instant invention which is a low-E matchable product.
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Citations
6 Claims
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1. A method of making a heat treated coated article, the method comprising:
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providing a glass substrate;
forming a multi-layer coating on the glass substrate, the multi-layer coating having a sheet resistance of no greater than 20 ohms/square, and wherein the coating comprises at least one layer comprising silver sandwiched between at least first and second dielectric layers; and
heat treating the glass substrate with the multi-layer coating thereon so that the heat treated coated article has a glass side Δ
E* value of no greater than 2.5. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification