Lead attachment for electroluminescent lamp

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

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Details

313511, 313512, H05B 3312, H05B 3322

Patent

active

052763820

ABSTRACT:
An electroluminescent sheet-form lamp comprising a transparent insulation layer, a transparent first conductive layer below the insulation layer forming a first electrode, a layer of phosphor material below the first conductive layer, a layer of dielectric material below the phosphor layer, a second conductive layer below the dielectric layer forming a second electrode, and electrical connection means for applying an electrical potential between the conductive layers to cause the phosphor to transmit light through the transparent conductive layer and the transparent insulation layer, one of the conductive layers having been formed as a general conductive coating preapplied over a panel of larger dimension than the lamp, from which the lamp has been cut. The lamp provides an improved electrical connection, wherein the one conductive layer has a line of interruption which isolates a localized region of the one conductive layer from electrical continuity with a main portion of the one conductive layer, the main portion of the one conductive layer forming the respective electrode and being connected to one of the connection means to apply electrical potential thereto without applying electrical potential to the localized region, the connection means for the other of the conductive layers which forms the other of the electrodes being located in coincidence with the area of the localized region, one of the connection means employing deformation of the sheet-form lamp, whereby the electrical isolation of the localized region prevents electrical shorting between the conductive layers as a result of the deformation.

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