Heat treatable coated article with zinc oxide inclusive contact layer(s)
AssigneeGuardian Industries Corp.
InventorsGeorge Neuman, Philip J. Lingle, Ronald E. Laird, Thomas A. Seder, Grzegorz Stachowiak
Life of this patent
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Abstract
A coated article is provided so as to have a fairly high visible transmission (TY or Tvis) to sheet resistance (Rs) ratio (i.e., a ratio Tvis/Rs). The higher this ratio, the better the coated article's combined functionality of providing for both good solar performance (e.g., ability to reflect and/or absorb IR radiation) and high visible transmission. In certain example embodiments, coated articles herein may be heat treatable. Coated articles herein may be used in the context of insulating glass (IG) window units, architectural or residential monolithic window units, vehicle window units, and/or the like.
Claims37
A heat treated coated article comprising:
- a multi-layer coating supported by a glass substrate, wherein the coating comprises at least one layer comprising silver;
- and
- wherein the coated article has a ratio Tvis/Rs of at least 32 after heat treatment (where Tvis is visible transmission (%) and Rs is sheet resistance of the coating in units of ohms/square) and a ΔE* value (glass side reflective and/or transmissive) of less than or equal to about 8 due to the heat treatment.
A coated article including a coating supported by a glass substrate, wherein the coating comprises from the glass substrate outwardly:
- a layer comprising Si-rich silicon nitride SixNy, where x/y is from 0.85 to 1.2;
- a layer comprising zinc oxide contacting the layer comprising Si-rich silicon nitride;
- a layer comprising silver contacting the layer comprising zinc oxide;
- and
- wherein the coated article has a ratio Tvis/Rs of at least 34 after heat treatment, and a ΔE* value (glass side reflective) of less than or equal to about 8 due to the heat treatment.
A heat treated coated article comprising a coating supported by a glass substrate, wherein the coating comprises, from the glass substrate outwardly:
- a layer comprising a metal oxide in direct contact with the glass substrate;
- a layer comprising silicon nitride in contact with the layer comprising the metal oxide;
- a first contact layer comprising zinc oxide in contact with the layer comprising silicon nitride;
- an IR reflecting layer;
- a second contact layer comprising at least one metal, wherein said IR reflecting layer is in contact with each of the first and second contact layers;
- and
- wherein the coated article has a ratio Tvis/Rs of at least 34 after heat treatment (where Tvis is visible transmission (%) and Rs is sheet resistance of the coating in units of ohms/square), and a ΔE* value (glass side reflective and/or transmissive) of less than or equal to about 5 due to the heat treatment.
A heat treated coated article comprising:
- a multi-layer coating supported by a glass substrate, wherein the coating comprises at least one IR reflecting layer located between at least first and second layers comprising metal and/or metal oxide;
- and
- wherein the coated article has a ratio TvisRs of at least 34 after heat treatment (where Tvis is visible transmission (%) and Rs is sheet resistance of the coating in units of ohms/square) and a ΔE* value (glass side reflective and/or transmissive) of less than or equal to about 5 due to the heat treatment.
Dependencies are inferred from the claim text.