Illumination – Illuminated scale or dial – Telephone dial
Patent
1996-11-13
1999-10-26
O'Shea, Sandra
Illumination
Illuminated scale or dial
Telephone dial
362 84, 362 88, 362109, 313506, H04M 122
Patent
active
059715570
ABSTRACT:
An electroluminescent backlit device utilizing light-emitting polymers (LEP) is disclosed. A sandwich of LEP material and two electrical conductive materials are used to provide back lighting for a keypad or display. The electrical conductive layers are etched to form channels which provide current to and excite the LEP material to produce light at predetermined points. The etchings are directed around existing electrical contacts to facilitate normal operation of the underlying host system, such as a cellular telephone.
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Philips Mobile Computing Group, "Velo, an Exploration into Mobile Computing Brochure".
Kubes Joseph
Smith James A.
Ericsson Inc.
Honeyman Marshall
O'shea Sandra
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