Keypad lighting using polymer light emitting devices
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United States of America Patent
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Nov 3, 2009
Grant Date -
Jul 24, 2008
app pub date -
Mar 25, 2008
filing date -
Feb 20, 2003
priority date (Note) -
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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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