Patent US3234380A successfully refreshed from Google Patents.
Patent US5830028A successfully refreshed from Google Patents.
US5830028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll coated EL panel
Assignee: Durel Corp
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Filing: 1997-06-02
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Granted: 1998-11-03
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Expires: 2017-06-02
Abstract
Abstract In a process for making an EL lamp, a rear electrode is roll coated on a temporary substrate, followed by successive roll coatings of a dielectric layer and a phosphor layer. A transparent, conductive layer on a transparent substrate is laminated to the phosphor layer layer and the temporary substrate is removed. The layers are applied from a slurry or ink and bladed to a uniform thickness across the width of the temporary substrate. The process can be continuous using rolls of material for the temporary substrate. The length of a lamp is limited by the length of the temporary substrate. The width of the lamp is determined by the size of the apparatus used to apply and to spread the layers.
Inventors
- 👤 Charles I. Zovko
- 👤 Rodney T. Eckersley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:06
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; applying a rear electrode to the major surface of said temporary substrate; applying a dielectric layer over the rear electrode; applying a phosphor layer over the dielectric layer; and laminating said phosphor layer to said conductive layer.
Claim 2
Independent Claim
71 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; applying a rear electrode to the major surface of said temporary substrate; applying a dielectric layer over the rear electrode; applying a phosphor layer over the dielectric layer; and laminating said phosphor layer to said conductive layer.
Claim 3
Dependent Claim
22 words
The process as set forth in claim 1 wherein said laminating step is followed by the step of removing said temporary substrate.
Claim 4
Dependent Claim
33 words
The process as set forth in claim 1 wherein said rear electrode is applied by roll coating, said dielectric layer is applied by roll coating, said phosphor layer is applied by roll coating.
Claim 5
Dependent Claim
22 words
The process as set forth in claim 3 wherein said laminating step is followed by the step of removing said temporary substrate.
Claim 6
Dependent Claim
69 words
The process as set forth in claim 1 wherein the step of applying the rear electrode is followed by the step of at least partially drying the rear electrode, the step of applying said dielectric layer is followed by the step of at least partially drying the dielectric layer, the step of applying said phosphor layer is followed by the step of at least partially drying the phosphor layer.
Claim 7
Independent Claim
61 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; roll coating said temporary substrate with a dielectric layer; roll coating a phosphor layer over the dielectric layer; and laminating said phosphor layer to said conductive layer.
Claim 8
Independent Claim
61 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; roll coating said temporary substrate with a dielectric layer; roll coating a phosphor layer over the dielectric layer; and laminating said phosphor layer to said conductive layer.
Claim 9
Dependent Claim
24 words
The method as set forth in claim 6 and further including the step of: patterning said conductive layer prior to laminating said phosphor layer.
Claim 10
Independent Claim
53 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; applying a luminescent EL layer to said temporary substrate; and laminating said luminescent EL layer to said conductive layer.
Claim 11
Independent Claim
53 words
A method for making EL lamps, said method comprising the steps of: providing a transparent substrate having a transparent conductive layer on a major surface thereof; providing a temporary substrate having a major surface; applying a luminescent EL layer to said temporary substrate; and laminating said luminescent EL layer to said conductive layer.
Claim 12
Dependent Claim
33 words
The method as set forth in claim 8 and further including the step of: applying a rear electrode to the major surface of said temporary substrate prior to applying the luminescent EL layer.
Claim 13
Dependent Claim
19 words
The method as set forth in claim 8 wherein said applying step includes roll coating the luminescent EL layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |