Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1992-06-24
1994-07-26
Yusko, Donald J.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313509, 313511, 428690, H05B 3300
Patent
active
053329465
ABSTRACT:
An electroluminescent sheet-form lamp with a main portion of a conductive layer isolated from an edge region susceptible to detrimental conductive pathways by isolation provided along at least a portion of the perimeter of the lamp as a result of removal of a preapplied conductive coating such that, at the region of the isolation, the main portion of the one conductive layer which forms the respective electrode commences at a line spaced inwardly from the outer edge of the lamp. The preapplied conductive coating material may be removed to form a line of interruption that leaves in place a narrow margin of conductive coating in the edge region which is electrically isolated from the main portion of the coating forming the first electrode. The lamp may be formed by exposing preselected portions of the preapplied conductive coating to laser radiation sufficient to remove the preselected portions and form the region of isolation. A scribing technique or a mask, which may be a printed functional layer of the lamp, are employed.
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Eckersley Rodney T.
Hooke Will M.
McGuigan Ralph
Stocker Sharlyn R.
Durel Corporation
Patel Nimesh
Yusko Donald J.
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