Transparent conductive laminate

• US 5,750,267 A
• Filed: 11/06/1995
• Issued: 05/12/1998
• Est. Priority Date: 01/27/1993
• Status: Expired due to Fees

• Current Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Original Assignee: Mitsui Toatsu Chemicals Incorporated (Mitsui Chemicals)
• Inventors: Dodo, Toshihiro, Takase, Mitsuo, Fukuda, Nobuhiro
• Primary Examiner(s): TURNER, ARCHENE A
• Application Number:
  US08/554,596
• Time in Patent Office: 918 Days
• Field of Search: 428/698, 428/701, 428/699, 428/697, 428/418, 428/458, 428/472
• US Class Current: 428/469
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B60S 1/026 using electrical means
• CPC Class Codes: H05B 2203/013 Heaters using resistive films or coatings
• CPC Class Codes: H05B 3/86 the heating conductors being embedded in the transparent or reflecting material H05B3/845 takes precedence
• CPC Class Codes: Y10T 428/31529 Next to metal
• CPC Class Codes: Y10T 428/31681 Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

Abstract

A transparent panel heater which can be used for heating a window portion of liquid crystal displays, refrigerated showcases, freezed showcases, defrosters of windshields, and the like. The panel heater has a transparent substrate, a transparent conductive film formed on the substrate, a substantially light-transmittable metallic electrode-underling-layer formed on the transparent conductive film and a pair of metallic electrodes which are provided for electrifying the conductive film and formed on the electrode-underlying-layer. The transparent conductive film is a laminate of at least one transparent thin layer made of a nitride and/or a carbide and at least one substantially light-transmittable metallic layer. The transparent conductive film and electrode-underlying-layer are preferably formed by a dry process, and the electrodes are preferably formed by a wet plating method.

Claims

1. A transparent laminate obtained by laminating

(a) at least one transparent thin layer made of an oxynitride of at least one selected from the group consisting of silicon, indium, tin, boron, aluminum, gallium and silicon carbide, or made of a hydride nitride of at least one selected from said group, and

(b) at least one substantially light-transmittable metallic layer, on a surface of a transparent substrate.

2. The transparent laminate according to claim 1 wherein said metallic layer is a silver thin layer or a thin layer containing silver as a main component.

3. The transparent laminate according to claim 1 wherein said metallic layer is a laminate of

(i) a silver thin layer or a thin layer containing silver as a main component, and

(ii) another thin layer containing a metal other than silver as a main component.

4. The transparent laminate according to claim 1 wherein the transparent thin layer, the metallic layer, a second transparent thin layer made according to (a), a second metallic layer according to (b) and a third transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

5. The transparent laminate according to claim 2 wherein the transparent thin layer, the metallic layer, a second transparent thin layer according to (a), a second metallic layer according to (b) and a third transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

6. The transparent laminate according to claim 3 wherein the transparent thin layer, the metallic layer, a second transparent thin layer according to (a), a second metallic layer according to (b) and a third transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

7. The transparent laminate according to claim 1 wherein the transparent thin layer, the metallic layer, a second transparent thin layer according to (a), a second metallic layer according to (b), a third transparent thin layer according to (a), a third metallic layer according to (b) and a fourth transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

8. The transparent laminate according to claim 2 wherein the transparent thin layer, the metallic layer, a second transparent thin layer according to (a), a second metallic layer according to (b), a third transparent thin layer according to (a), a third metallic layer according to (b) and a fourth transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

9. The transparent laminate according to claim 3 wherein the transparent thin layer, the metallic layer, a second transparent thin layer according to (a), a second metallic layer according to (b), a third transparent thin layer according to (a), a third metallic layer according to (b) and a fourth transparent thin layer according to (a) are laminated in this order on at least one surface of the transparent substrate.

10. The transparent laminate according to claim 1 wherein said transparent substrate consists of a transparent plastic film.

11. The transparent laminate according to claim 1 wherein (a) is at least one transparent thin layer made of an oxynitride.