Keypad lighting using polymer light emitting devices

Details Keypad lighting using polymer light emitting devices Keypad lighting using polymer light emitting devices

2008-05-27

2008-05-27

Anderson, Matthew (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

C455S158500, C455S159100, C455S566000, C200S341000, C200S344000

Reexamination Certificate

active

10370399

ABSTRACT:
At least one key of a keypad of an electronic device, such as a wireless terminal, includes a polymer light emitting device, also referred to as a polymer LED, thereon. A polymer LED may be on the inner and/or outer surface of the face of the key and may be unpatterned and/or patterned to form a symbol.

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