Coated article with anti-reflective layer(s) system
First Claim
Patent Images
1. A coated article including a coating supported by a glass substrate, the coating comprising:
- a metallic infrared (IR) reflecting layer sandwiched between first and second contact layers;
a first dielectric layer having an index of refraction n<
=2.7 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;
a fourth dielectric layer comprising silicon oxide provided over the IR reflecting layer; and
wherein the third dielectric layer comprising silicon oxynitride is provided between the second and fourth dielectric layers.
2 Assignments
0 Petitions
Accused Products
Abstract
Coated articles are provided with an anti-reflective (AR) layer(s) system which enables reduced reflection, increased visible transmission, and/or neutral color. In certain embodiments, the AR layer(s) system includes a titanium oxide layer, a silicon oxynitride layer, and/or a silicon oxide layer on the substrate over an infrared (IR) reflecting layer(s) such as silver. Silicon nitride layer(s) may optionally be provided below and/or over the IR reflecting layer in certain example embodiments.
192 Citations
55 Claims
-
1. A coated article including a coating supported by a glass substrate, the coating comprising:
-
a metallic infrared (IR) reflecting layer sandwiched between first and second contact layers;
a first dielectric layer having an index of refraction n<
=2.7 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;
a fourth dielectric layer comprising silicon oxide provided over the IR reflecting layer; and
wherein the third dielectric layer comprising silicon oxynitride is provided between the second and fourth dielectric layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 52)
-
-
18. A coated article including a coating supported by a glass substrate, the coating comprising:
-
a metallic infrared (IR) reflecting layer sandwiched between first and second contact layers which contact the IR reflecting layer;
a first dielectric layer having an index of refraction n<
=3.0 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxide provided over the IR reflecting layer;
wherein the second dielectric layer comprising titanium oxide is provided between the IR reflecting layer and the third dielectric layer comprising silicon oxide; and
wherein the second dielectric layer comprising titanium oxide is index graded so that an index of refraction n of the second dielectric layer comprising titanium oxide changes from a first value in a first portion of the second dielectric layer to a smaller second value in a second portion of the second dielectric layer, wherein the second portion of the second dielectric layer comprising titanium oxide with the smaller index of refraction n is further from the IR reflecting layer than is the first portion of the second dielectric layer.
-
-
19. A coated article including a coating supported by a glass substrate, the coating comprising:
-
a metallic infrared (IR) reflecting layer comprising silver sandwiched between first and second contact layers which contact the IR reflecting layer;
a first dielectric layer having an index of refraction n<
=3.0 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;
wherein the second dielectric layer comprising titanium oxide is provided between the IR reflecting layer and the third dielectric layer comprising silicon oxynitride; and
wherein the second dielectric layer comprising titanium oxide is index graded so that an index of refraction n of the second dielectric layer comprising titanium oxide changes from a first value in a first portion of the second dielectric layer to a smaller second value in a second portion of the second dielectric layer, wherein the second portion of the second dielectric layer comprising titanium oxide with the smaller index of refraction n is further from the IR reflecting layer than is the first portion of the second dielectric layer. - View Dependent Claims (20, 21, 22, 23, 24, 25, 29)
-
-
26. A coated article including a coating supported by a glass substrate, the coating comprising:
-
a metallic infrared (IR) reflecting layer comprising silver sandwiched between first and second contact layers which contact the IR reflecting layer;
a first dielectric layer having an index of refraction n<
=3.0 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;
wherein the second dielectric layer comprising titanium oxide is provided between the IR reflecting layer and the third dielectric layer comprising silicon oxynitride; and
a fourth dielectric layer comprising silicon oxide provided over each of the first, second and third dielectric layers. - View Dependent Claims (27, 28)
-
-
30. A coated article including a coating supported by a glass substrate, the coating comprising:
-
a metallic infrared (IR) reflecting layer comprising silver sandwiched between first and second contact layers each of which contacts the IR reflecting layer;
a first dielectric layer having an index of refraction n<
=3.0 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;
a third dielectric layer comprising silicon oxide provided over the IR reflecting layer; and
wherein the second dielectric layer comprising silicon oxynitride is provided between the IR reflecting layer and the third dielectric layer comprising silicon oxide. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
-
-
43. A coated article including a coating supported by a glass substrate, the coating comprising:
-
an infrared (IR) reflecting layer comprising silver sandwiched between first and second contact layers each of which contacts the IR reflecting layer;
a first dielectric layer having an index of refraction n<
=3.0 provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;
wherein the coated article has a sheet resistance (Rs)<
=20 ohms/square; and
wherein the second dielectric layer comprising titanium oxide has a varying index of refraction so that an index of refraction n of the second dielectric layer comprising titanium oxide changes from a first value in a first portion of the second dielectric layer to a smaller second value in a second portion of the second dielectric layer, wherein the second portion of the second dielectric layer comprising titanium oxide with the smaller index of refraction n is further from the IR reflecting layer than is the first portion of the second dielectric layer. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51)
-
-
53. A coated article including a coating supported by a substrate, the coating comprising:
-
a layer comprising Ag located between first and second metal oxide contact layers which contact the layer comprising Ag;
a first dielectric layer having an index of refraction n<
=3.0 provided between the substrate and the layer comprising Ag;
a second dielectric layer having an index of refraction n=2.1-2.7 provided over the layer comprising Ag;
a third dielectric layer comprising silicon oxynitride having an index of refraction n=1.6-1.9 provided over the layer comprising Ag, a fourth dielectric layer comprising silicon oxide having an index of refraction n=1.4-1.7 provided over the layer comprising Ag;
wherein the third dielectric layer is provided between the second and fourth dielectric layers, wherein the coated article has a visible transmission of at least 70%, a sheet resistance (Rs)<
=20 ohms/sq., and color characterized by a transmissive a* value from −
4.0 to +2.0, a transmissive b* value from −
5.0 to +4.0, a glass side reflective a* value from −
5.0 to +3.0, and a glass side reflective b* value from −
6.0 to +4.0; and
wherein at least one of the first and second dielectric layers comprises titanium oxide. - View Dependent Claims (54)
-
-
55. A coated article including a coating supported by a glass substrate, the coating comprising:
-
an infrared (IR) reflecting layer comprising silver;
a first dielectric layer provided between the IR reflecting layer and the glass substrate;
a second dielectric layer comprising titanium oxide provided over the IR reflecting layer; and
wherein the second dielectric layer comprising titanium oxide has a varying index of refraction so that an index of refraction n of the second dielectric layer comprising titanium oxide changes from a first value in a first portion of the second dielectric layer to a smaller second value in a second portion of the second dielectric layer, wherein the second portion of the second dielectric layer comprising titanium oxide with the smaller index of refraction n is further from the IR reflecting layer than is the first portion of the second dielectric layer.
-
Specification