Method of encapsulating an AC power type EL panel

Details Method of encapsulating an AC power type EL panel Method of encapsulating an AC power type EL panel

1990-08-27

1992-02-04

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

156251, H05B 3304

Patent

active

050856057

ABSTRACT:
An AC power type EL panel includes an AC power type EL element, thermoplastic adhesive layers formed on all surfaces of the AC power type EL element, and a pair of protective films adhered to cover substantially the entire surfaces of the the thermoplastic adhesive layers and having end portions to be fused to each other to seal the AC power type EL element. A thickness ratio of the protective film to the thermoplastic adhesive layer is within the range of 5:1 to 2:1. Since the thermocompression-bonded end portions of the thermoplastic adhesive layers having poor moisture barrier properties are not exposed between the protective films at the end portions of the AC power type EL panel, penetration of external moisture into the panel can be effectively prevented.

REFERENCES:
patent: 3235938 (1966-02-01), Green
patent: 4159559 (1979-07-01), Robinson, Sr.
patent: 4500382 (1985-02-01), Foster

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