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US 10,415,300 B2Granted
Low-emissivity coating and functional construction material for window/door comprising low-emissivity coating
AssigneeLG Hausys, Ltd.
InventorsDae-Hoon Kwon, Youn-Ki Jun
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Abstract
Provided is a low-emissivity coating comprising successively: a first dielectric layer comprising a first metal oxide; a low-emissivity layer; and a second dielectric layer having first and second layers stacked on each other, the first layer comprising a second metal oxide, and the second layer comprising a silicon aluminum nitride, wherein each of the first and second metal oxides has a refractive index ranging from about 2.2 to about 2.6 with regard to a wavelength of about 550 nm.
Claims8
A low-emissivity coating successively comprising:
- a first dielectric layer consisting of a first metal oxide;
- a low-emissivity layer directly on the first dielectric layer, wherein a thickness of the low-emissivity layer ranges from 5 nm to 7 nm;
- and
- a second dielectric layer directly on the low-emissivity layer, wherein the second dielectric layer comprises:
- a first layer directly on the low-emissivity layer, consisting of a second metal oxide, wherein a thickness of the first layer ranges from 10 nm to 25 nm;
- and
- a second layer directly on the first layer, consisting of a silicon aluminum nitride,
- wherein each of the first metal oxide and the second metal oxide independently has a refractive index ranging from 2.2 to 2.6 with regard to a wavelength of 550 nm,
- wherein the first metal oxide consists of titanium oxide, and the second metal oxide consists of titanium oxide,
- wherein a thickness ratio between the first layer and the first dielectric layer ranges from 1:3 to 1:6, and
- wherein a thickness ratio between the first layer and the second layer ranges from 1:2 to 1:4.
8 more elements
Dependencies are inferred from the claim text.