Electroluminescent metal dome keypad

Details Electroluminescent metal dome keypad Electroluminescent metal dome keypad

2006-03-28

2006-03-28

Donovan, Lincoln (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Membrane type

C200S0050EA, C200S314000

Reexamination Certificate

active

07019242

ABSTRACT:
The present invention relates to an EL metal dome keypad which comprises a plurality of domes which are disposed at positions corresponding to fixed contact terminals of a printed circuit board and are brought into contact with or separated from the fixed contact terminals by means of elastic deformation; a base tape which is laminated on the printed circuit board, has a plurality of holes formed at positions corresponding to the domes, and is used to mount the domes to the printed circuit board by inserting and holding the domes into the formed holes; double-sided adhesive tape which is laminated in the base tape and the domes inserted into and held to the holes formed in the base tape, and used to attach and hold the base tape and the dome thereon; and an EL sheet which is attached and laminated on the double-sided adhesive tape.

REFERENCES:
patent: 4060653 (1977-11-01), Everett, Jr.
patent: 5871088 (1999-02-01), Tanabe
patent: 6595653 (2003-07-01), Saito et al.
patent: 2004079338 (2004-03-01), None

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