Electroluminescent keypad

Details Electroluminescent keypad Electroluminescent keypad

1998-08-24

2000-08-08

Luebke, Renee

Electricity: circuit makers and breakers

Electric switch details

Indicators

200317, H01H 1370

Patent

active

061004782

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.

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patent: 5811930 (1998-09-01), Krafcik et al.
patent: 5818174 (1998-10-01), Ohara et al.
patent: 5844362 (1998-12-01), Tanabe et al.
patent: 5871088 (1999-02-01), Tanabe

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