IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0800012
(2004-03-15)
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등록번호 |
US-7344782
(2008-03-18)
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발명자
/ 주소 |
- Lingle,Philip J.
- Dietrich,Anton
- Muller,Jens Peter
|
출원인 / 주소 |
- Guardian Industries Corp.
- Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.)
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
17 인용 특허 :
35 |
초록
▼
A coated article is provided that may be heat treated in certain example embodiments. A coating of the coated article includes zinc oxide inclusive layer(s) located under infrared (IR) reflecting layer(s) of a material such as silver. In certain example embodiments, coated articles are designed so a
A coated article is provided that may be heat treated in certain example embodiments. A coating of the coated article includes zinc oxide inclusive layer(s) located under infrared (IR) reflecting layer(s) of a material such as silver. In certain example embodiments, coated articles are designed so as to realize higher visible transmission and/or lower sheet resistance values.
대표청구항
▼
The invention claimed is: 1. A heat treated coated article comprising a coating supported by a glass substrate, the coating comprising: a first layer comprising silicon nitride which is located on and directly contacts a surface of the glass substrate; a first layer comprising zinc oxide located ov
The invention claimed is: 1. A heat treated coated article comprising a coating supported by a glass substrate, the coating comprising: a first layer comprising silicon nitride which is located on and directly contacts a surface of the glass substrate; a first layer comprising zinc oxide located over at least the first layer comprising silicon nitride; a first infrared (IR) reflecting layer comprising silver located over and contacting the first layer comprising zinc oxide; a second layer comprising silicon nitride located over at least the first IR reflecting layer; a second layer comprising zinc oxide located over at least the second layer comprising silicon nitride; a second IR reflecting layer comprising silver located over and contacting the second layer comprising zinc oxide; a layer comprising an oxide of Ni and/or Cr located over and contacting the second IR reflecting layer; a layer comprising tin oxide located over at least the layer comprising an oxide of Ni and/or Cr; a layer comprising silicon nitride located over and contacting the layer comprising tin oxide, wherein the layer comprising tin oxide is significantly thicker than the layer comprising silicon nitride; and wherein the coated article following heat treatment, measured monolithically, has a sheet resistance of less or equal to 2.5 ohms/square, a haze value of less than or equal to 0.35, and a visible transmission of at least 80%. 2. The coated article of claim 1, wherein the coated article following heat treatment, measured monolithically, has a haze value of less than or equal to 0.30. 3. The coated article of claim 1, wherein at least one of the first and second layers comprising silicon nitride is Si-rich so as to be represented by SiXNY, where x/y is from 0.8 to 1.4. 4. The coated article of claim 1, wherein said another dielectric layer, located over at least the layer comprising an oxide of Ni and/or Cr, comprises a first layer comprising tin oxide and another layer comprising silicon nitride which is an outermost layer of the coating. 5. The coated article of claim 1, further comprising a layer comprising tin oxide located between the first IR reflecting layer and the second layer comprising silicon nitride. 6. The coated article of claim 1, further comprising a layer comprising an oxide of Ni and/or Cr located directly on and contacting the first IR reflecting layer. 7. The coated article of claim 1, wherein at least one of the first and second layers comprising silicon nitride includes from 1-10% aluminum. 8. The coated article of claim 1, wherein at least one of the first and second layers comprising zinc oxide includes from 1-10% aluminum. 9. The coated article of claim 1, wherein said layer comprising an oxide of Ni and/or Cr includes an oxide of NiCr and is from 30-45 Å thick. 10. The coated article of claim 1, wherein said second layer comprising silicon nitride is from 90-150 Å thick. 11. A laminated vehicle windshield including the coated article of claim 1 laminated to another glass substrate wherein the laminated vehicle windshield has a visible transmission of at least 76.0%. 12. The laminated vehicle windshield of claim 11, wherein the laminated vehicle windshield has a visible transmission of at least 77.0%. 13. The coated article of claim 1, wherein the layer comprising tin oxide is at least twice as thick as the layer comprising silicon nitride. 14. A heat treated coated article comprising a coating supported by a glass substrate, the coating comprising: a first dielectric layer on the substrate; a first infrared (IR) reflecting layer located over at least the first dielectric layer; a second dielectric layer located over at least the first IR reflecting layer; a second IR reflecting layer located over at least the second dielectric layer; a layer comprising tin oxide located over at least the second IR reflecting layer; a layer comprising silicon nitride located over and contacting the layer comprising tin oxide, wherein the layer comprising tin oxide is significantly thicker than the layer comprising silicon nitride; and wherein the coated article following heat treatment, measured monolithically, has a sheet resistance of less than 2.5 ohms/square, a haze value of less than or equal to 0.35, and a visible transmission of at least 80%. 15. The coated article of claim 14, wherein the coated article following heat treatment, measured monolithically, has a haze value of less than or equal to 0.30. 16. The coated article of claim 14, wherein at least one of the dielectric layers comprises silicon nitride which is Si-rich so as to be represented by SiXNY, where x/y is from 0.8 to 1.4. 17. The coated article of claim 14, wherein said first and second IR reflecting layers are located on and contacting first and second layers comprising zinc oxide, respectively. 18. The coated article of claim 14, wherein the layer comprising tin oxide is at least twice as thick as the layer comprising silicon nitride. 19. A heat treated coated article comprising a coating supported by a glass substrate, the coating comprising: a first layer comprising silicon nitride which is located on and directly contacts a surface of the glass substrate; a first layer comprising zinc oxide located over at least the first layer comprising silicon nitride; a first infrared (IR) reflecting layer comprising silver located over and contacting the first layer comprising zinc oxide; a second layer comprising silicon nitride located over at least the first IR reflecting layer; a second layer comprising zinc oxide located over at least the second layer comprising silicon nitride; a second IR reflecting layer comprising silver located over and contacting the second layer comprising zinc oxide; a layer comprising an oxide of Ni and/or Cr located over and contacting the second IR reflecting layer; at least another dielectric layer located over at least the layer comprising an oxide of Ni and/or Cr; and wherein the coated article following heat treatment, measured monolithically, has a sheet resistance of less than or equal to 3.0 ohms/square, and a visible transmission of at least 78%. 20. The coated article of claim 19, wherein the coated article following heat treatment, measured monolithically, has a sheet resistance of no greater than 2.5 ohms/square. 21. The coated article of claim 19, wherein the coated article following heat treatment, measured monolithically, has a haze value of less than or equal to 0.35. 22. The coated article of claim 19, wherein the coated article following heat treatment, measured monolithically, has a visible transmission of at least about 80%. 23. The coated article of claim 19, wherein said another dielectric layer comprises tin oxide. 24. The coated article of claim 19, wherein said another dielectric layer comprises tin oxide, and wherein the coated article further comprises a layer comprising silicon nitride located over and contacting said another dielectric layer which comprises tin oxide, wherein said another dielectric layer which comprises tin oxide is significantly thicker than the layer comprising silicon nitride. 25. The coated article of claim 19, further comprising both a layer comprising an oxide of NiCr and a layer comprising tin oxide located between the first infrared (IR) reflecting layer comprising silver and the first layer comprising zinc oxide, wherein the layer comprising an oxide of NiCr directly contacts the first IR reflecting layer comprising silver and the layer comprising tin oxide.
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