Electroluminescent keypad

Details Electroluminescent keypad Electroluminescent keypad

1996-11-25

1998-08-25

Gellner, Michael L.

Electricity: circuit makers and breakers

Electric switch details

Indicators

200 5A, 200278, H01H 926, H01H 110, H01H 900

Patent

active

057974829

ABSTRACT:
An electroluminescent keypad, and an electroluminescent lamp, with integral shunts, for use in a keypad. The keypad includes a circuit board that includes a plurality of contact pairs adapted to complete circuits to perform keypad functions. An elastomeric sheet that includes a plurality of key elements overlays the circuit board. Each of the key elements is associated with one of the contact pairs. An electroluminescent lamp with a plurality of integral shunts corresponding to the contact pairs is positioned between the elastomeric sheet and the circuit board.

REFERENCES:
patent: 4060703 (1977-11-01), Everett, Jr.
patent: 4320268 (1982-03-01), Brown
patent: 4532395 (1985-07-01), Zukowski
patent: 4683360 (1987-07-01), Maser
patent: 5570114 (1996-10-01), Fowler
patent: 5669486 (1997-09-01), Shima
patent: 5680160 (1997-10-01), LaPointe

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