Patent US4667128A successfully refreshed from Google Patents.
US4667128A
Expired / Lapsed
US
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Transparent electrode with protective, conductive grid
Assignee: Alps Alpine Co Ltd
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Filing: 1985-06-17
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Granted: 1987-05-19
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Expires: 2005-06-17
Abstract
Abstract A transparent electrode for use in a dispersive type electroluminescent device or the like comprises a transparent substrate, a transparent electrode film on the substrate, and a number of closely spaced protective ridges continuous with each other on the electrode film.
Inventors
- 👤 Yoshimi Kamijo
- 👤 Yoshinori Kato
- 👤 Masami Ikarashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:58
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/20; G09F13/22; H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A transparent electrode, to be used spaced apart in parallel with a second electrode, comprising a transparent substrate, a transparent electrically conductive electrode film formed on the substrate, said substrate and conductive film being formed as a continuous sheet extending over a defined area in which current is to be applied between said transparent electrode and the second electrode, and a protective, conductive layer including a number of closely spaced protective ridges which are continuous over said defined area and are applied on said transparent electrode film, whereby said protective, conductive layer protects said transparent electrode film from flaws, and maintains the conductivity of said electrode film in said defined area.
Claim 2
Dependent Claim
111 words
A transparent electrode, to be used spaced apart in parallel with a second electrode, comprising a transparent substrate, a transparent electrically conductive electrode film formed on the substrate, said substrate and conductive film being formed as a continuous sheet extending over a defined area in which current is to be applied between said transparent electrode and the second electrode, and a protective, conductive layer including a number of closely spaced protective ridges which are continuous over said defined area and are applied on said transparent electrode film, whereby said protective, conductive layer protects said transparent electrode film from flaws, and maintains the conductivity of said electrode film in said defined area.
Claim 3
Dependent Claim
19 words
A transparent electrode as set forth in claim 1, wherein the protective ridges have been formed by screen printing.
Claim 4
Dependent Claim
17 words
A transparent electrode as set forth in claim 1, wherein the protective ridges are of meshy structure.
Claim 5
Dependent Claim
43 words
A transparent electrode as set forth in claim 3, wherein each open space between the ridges is a square whose both sides are about 100 to 300 μm in length, and wherein the ridges have a width of about 10 to 50 μm.
Claim 6
Dependent Claim
21 words
A transparent electrode as set forth in claim 1, wherein the protective ridges extend laterally in parallel relation to each other.
Claim 7
Dependent Claim
21 words
A transparent electrode as set forth in claim 1, wherein the protective ridges extend obliquely in parallel relation to each other.
Claim 8
Dependent Claim
16 words
A transparent electrode as set forth in claim 1, wherein the protective ridges contain a resin.
Claim 9
Dependent Claim
18 words
A transparent electrode as set forth in claim 1, wherein the protective ridges contain a conductive fine powder.
Claim 10
Dependent Claim
18 words
A transparent electrode as set forth in claim 1, wherein the protective ridges contain an inorganic fine powder.
Claim 11
Dependent Claim
21 words
A transparent electrode as set forth in claim 1, wherein the protective ridges contain a fine powder of a hygroscopic substance.
References Cited (Backward Citations)
US4015166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |