US4977013A
Expired / Lapsed
US
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Tranparent conductive coatings
Assignee: CPFilms Inc
•
Filing: 1988-06-03
•
Granted: 1990-12-11
•
Expires: 2008-06-03
Abstract
Abstract An article having a transparent conductive coating having predetermined interference reflectance and transmission properties substantially independent of its conductivity, comprising: (a) a substrate having a refractive index n0 and (b) a coating disposed over at least a portion of the substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n1 different from n0; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n1, at least one of which has a thickness sufficient to provide a desired conductivity; the coating having a thickness such that it has predetermined interference reflectance and transmission properties substantially independent of its conductivity.
Inventors
- 👤 Ian T. Ritchie
- 👤 Wilfred C. Kittler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:27
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/13439; C; C03; C03C; C03C17/00; C03C17/34; C03C17/3411; C03C17/3417; C08; C08J; C08J7/00; C08J7/04; C08J7/043; C08J7/044; C08J7/046; C08J7/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
119 words
An article having a transparent conductive coating having predetermined interference reflectance and transmission properties substantially independent of its conductivity, comprising: (a) a substrate having a refractive index n 0 and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least one of which has a thickness sufficient to provide a desired conductivity; said coating having a thickness such that said coating has predetermined interference reflectance and transmission properties substantially independent of the conductivity of said coating.
Claim 2
Dependent Claim
119 words
An article having a transparent conductive coating having predetermined interference reflectance and transmission properties substantially independent of its conductivity, comprising: (a) a substrate having a refractive index n 0 and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least one of which has a thickness sufficient to provide a desired conductivity; said coating having a thickness such that said coating has predetermined interference reflectance and transmission properties substantially independent of the conductivity of said coating.
Claim 3
Dependent Claim
30 words
An article according to claim 1, wherein said coating consists of one dielectric layer and one conductive layer, said dielectric layer being positioned between said substrate and said conductive layer.
Claim 4
Dependent Claim
29 words
An article according to claim 1, wherein said coating consists of one dielectric and one conductive layer, said conductive layer being positioned between said substrate and said dielectric layer.
Claim 5
Dependent Claim
19 words
An article according to claim 1, wherein said coating consists of a conductive layer sandwiched between two nonconductive layers.
Claim 6
Dependent Claim
28 words
An article according to claim 1, wherein said conductive layer is made of conductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate.
Claim 7
Dependent Claim
17 words
An article according to claim 1, wherein said conductive layer is made of conductive indium tin oxide.
Claim 8
Dependent Claim
33 words
An article according to claim 1, wherein said dielectric layer is made of nonconductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate; titanium oxide; or zirconium oxide.
Claim 9
Dependent Claim
23 words
An article according to claim 1, wherein said substrate is made of polyester, polycarbonate, acrylic polymer, polyimide, fluoropolymer, cellulose triacetate, glass, or ceramic.
Claim 10
Dependent Claim
14 words
An article according to claim 1, wherein said substrate is made of poly(ethylene terephthalate).
Claim 11
Dependent Claim
11 words
An article according to claim 1, wherein said coating is sputtered.
Claim 12
Dependent Claim
18 words
An article according to claim 1, wherein said conductive layer has been etched to form an electrode pattern.
Claim 13
Dependent Claim
143 words
An article having a transparent conductive coating, comprising: (a) a substrate having a refractive index n o and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least of which has a thickness sufficient to provide a desired conductivity; said coating having an interference reflectance minimum at a wavelength 1 between about 350 and about 650 nm according to the equation 1=4n.sub.1 D/m where D is the thickness of said coating and m is 2 in the event n 1 is greater than n 0 and 1 or 3 in the event n 1 is less than n 0 .
Claim 14
Dependent Claim
143 words
An article having a transparent conductive coating, comprising: (a) a substrate having a refractive index n o and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least of which has a thickness sufficient to provide a desired conductivity; said coating having an interference reflectance minimum at a wavelength 1 between about 350 and about 650 nm according to the equation 1=4n.sub.1 D/m where D is the thickness of said coating and m is 2 in the event n 1 is greater than n 0 and 1 or 3 in the event n 1 is less than n 0 .
Claim 15
Dependent Claim
30 words
An article according to claim 12, wherein said coating consists of one dielectric layer and one conductive layer, said dielectric layer being positioned between said substrate and said conductive layer.
Claim 16
Dependent Claim
30 words
An article according to claim 12, wherein said coating consists of one dielectric layer and one conductive layer, said conductive layer being positioned between said substrate and said dielectric layer.
Claim 17
Dependent Claim
19 words
An article according to claim 12, wherein said coating consists of a conductive layer sandwiched between two nonconductive layers.
Claim 18
Dependent Claim
28 words
An article according to claim 12, wherein said conductive layer is made of conductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate.
Claim 19
Dependent Claim
17 words
An article according to claim 12, wherein said conductive layer is made of conductive indium tin oxide.
Claim 20
Dependent Claim
33 words
An article according to claim 12, wherein said dielectric layer is made of nonconductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate; titanium oxide; or zirconium oxide.
Claim 21
Dependent Claim
23 words
An article according to claim 12, wherein said substrate is made of polyester, polycarbonate, acrylic polymer, polyimide, fluoropolymer, cellulose triacetate, glass, or ceramic.
Claim 22
Dependent Claim
14 words
An article according to claim 12, wherein said substrate is made of poly(ethylene terephthalate).
Claim 23
Dependent Claim
11 words
An article according to claim 12, wherein said coating is sputtered.
Claim 24
Dependent Claim
18 words
An article according to claim 12, wherein said conductive layer has been etched to form an electrode pattern.
Claim 25
Dependent Claim
96 words
An article having a transparent conductive coating, comprising: (a) a substrate having a refractive index n o and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least one of which has a thickness sufficient to provide a desired conductivity; the thickness of said coating being between about 50 and about 200 nm.
Claim 26
Dependent Claim
96 words
An article having a transparent conductive coating, comprising: (a) a substrate having a refractive index n o and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one transparent dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one transparent conductive layer having a refractive index substantially equal to n 1 , at least one of which has a thickness sufficient to provide a desired conductivity; the thickness of said coating being between about 50 and about 200 nm.
Claim 27
Dependent Claim
30 words
An article according to claim 23, wherein said coating consists of one dielectric layer and one conductive layer, said dielectric layer being positioned between said substrate and said conductive layer.
Claim 28
Dependent Claim
29 words
An article according to claim 23, wherein said coating consists of one dielectric and one conductive layer, said conductive layer being positioned between said substrate and said dielectric layer.
Claim 29
Dependent Claim
19 words
An article according to claim 23, wherein said coating consists of a conductive layer sandwiched between two nonconductive layers.
Claim 30
Dependent Claim
28 words
An article according to claim 23, wherein said conductive layer is made of conductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate.
Claim 31
Dependent Claim
17 words
An article according to claim 23, wherein said conductive layer is made of conductive indium tin oxide.
Claim 32
Dependent Claim
33 words
An article according to claim 23, wherein said dielectric layer is made of nonconductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate; titanium oxide; or zirconium oxide.
Claim 33
Dependent Claim
23 words
An article according to claim 23, wherein said substrate is made of polyester, polycarbonate, acrylic polymer, polyimide, fluoropolymer, cellulose triacetate, glass, or ceramic.
Claim 34
Dependent Claim
14 words
An article according to claim 23, wherein said substrate is made of poly(ethylene terephthalate).
Claim 35
Dependent Claim
11 words
An article according to claim 23, wherein said coating is sputtered.
Claim 36
Dependent Claim
18 words
An article according to claim 23, wherein said conductive layer has been etched to form an electrode pattern.
Claim 37
Dependent Claim
116 words
An article having a conductive coating which is substantially transparent to infra-red radiation at a predetermined wavelength, comprising: (a) a substrate having a refractive index n 0 and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one infra-red transparent, dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one infra-red transparent, conductive layer having a refractive index substantially equal to n 1 , at least one of which a thickness sufficient to provide a desired conductivity; said coating having a thickness such that said coating has an interference reflectance minimum at a predetermined wavelength in the infra-red spectrum.
Claim 38
Dependent Claim
116 words
An article having a conductive coating which is substantially transparent to infra-red radiation at a predetermined wavelength, comprising: (a) a substrate having a refractive index n 0 and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) at least one infra-red transparent, dielectric layer having a refractive index n 1 different from n 0 ; and (ii) at least one infra-red transparent, conductive layer having a refractive index substantially equal to n 1 , at least one of which a thickness sufficient to provide a desired conductivity; said coating having a thickness such that said coating has an interference reflectance minimum at a predetermined wavelength in the infra-red spectrum.
Claim 39
Dependent Claim
30 words
An article according to claim 34, wherein said coating consists of one dielectric layer and one conductive layer, said dielectric layer being positioned between said substrate and said conductive layer.
Claim 40
Dependent Claim
30 words
An article according to claim 34, wherein said coating consists of one dielectric layer and one conductive layer, said conductive layer being positioned between said substrate and said dielectric layer.
Claim 41
Dependent Claim
19 words
An article according to claim 34, wherein said coating consists of a conductive layer sandwiched between two nonconductive layers.
Claim 42
Dependent Claim
28 words
An article according to claim 34, wherein said conductive layer is made of conductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate.
Claim 43
Dependent Claim
17 words
An article according to claim 34, wherein said conductive layer is made of conductive indium tin oxide.
Claim 44
Dependent Claim
33 words
An article according to claim 34, wherein said dielectric layer is made of nonconductive indium tin oxide, tin oxide, zinc oxide, cadmium oxide, indium oxide, or cadmium stannate; titanium oxide; or zirconium oxide.
Claim 45
Dependent Claim
17 words
An article according to claim 34, wherein said substrate is made of zinc selenide, germanium, or silicon.
Claim 46
Dependent Claim
11 words
An article according to claim 34, wherein said coating is sputtered.
Claim 47
Dependent Claim
18 words
An article according to claim 34, wherein said conductive layer has been etched to form an electrode pattern.
Claim 48
Dependent Claim
106 words
An article having a transparent conductive coating, comprising: (a) a substrate and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) a conductive indium tin oxide layer having a thickness sufficient to provide a desired conductivity; and (ii) a transparent dielectric layer having a refractive index substantially equal to that of said indium tin oxide layer and positioned between said substrate and said indium tin oxide layer; the refractive index of said substrate being different from that of said indium tin oxide and dielectric layers; and the thickness of said coating being between about 50 and about 200 nm.
Claim 49
Dependent Claim
106 words
An article having a transparent conductive coating, comprising: (a) a substrate and (b) a coating disposed over at least a portion of said substrate and consisting of: (i) a conductive indium tin oxide layer having a thickness sufficient to provide a desired conductivity; and (ii) a transparent dielectric layer having a refractive index substantially equal to that of said indium tin oxide layer and positioned between said substrate and said indium tin oxide layer; the refractive index of said substrate being different from that of said indium tin oxide and dielectric layers; and the thickness of said coating being between about 50 and about 200 nm.
Claim 50
Dependent Claim
20 words
An article according to claim 44, wherein said dielectric layer is made of nonconductive indium tin oxide or tin oxide.
Claim 51
Dependent Claim
14 words
An article according to claim 44, wherein said substrate is made of poly(ethylene terephthalate).
Claim 52
Dependent Claim
19 words
An article according to claim 44, wherein said coating has a thickness between about 50 and about 150 nm.
References Cited (Backward Citations)
US3565807A
Cited
US3698946A
Cited
US3865301A
Cited
US3922452A
Cited
US3936580A
Cited
US3941968A
Cited
US4057670A
Cited
DE2823630A1
Cited
US4291947A
Cited
US4201649A
Cited
US4266108A
Cited
US4345000A
Cited
US4255474A
Cited
US4450201A
Cited
GB2116590A
Cited
GB2121075A
Cited
GB2132229A
Cited
US4737018A
Cited
US4710433A
Cited
US4689458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |