EL element and illumination comprising it

Details EL element and illumination comprising it EL element and illumination comprising it

2005-04-12

2005-04-12

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S512000, C313S112000

Reexamination Certificate

active

06879100

ABSTRACT:
An EL element includes a light-transmitting substrate, a light-transmitting electrode layer over a first surface of the substrate, a luminescent layer over the light-transmitting electrode layer, a back electrode layer over the luminescent layer, and a waterproof insulating layer covering the light-transmitting electrode layer, the luminescent layer, and the back electrode layer. The EL element and a lighting unit have excellent resistance against water. The light-transmitting electrode layer, the luminescent layer, and the back electrode layer end before an outer periphery of the substrate as well as before an end face of the substrate at each hole or notch in the substrate. This arrangement provides the EL element and the lighting unit with the excellent resistance against water.

REFERENCES:
patent: 5239228 (1993-08-01), Taniguchi et al.
patent: 6198217 (2001-03-01), Suzuki et al.
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patent: 9-198902 (1997-07-01), None
patent: 10-274948 (1998-10-01), None
patent: 10-283096 (1998-10-01), None
patent: 2000-48953 (2000-02-01), None
patent: 2000-91068 (2000-03-01), None
patent: WO9630919 (1996-10-01), None

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