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US 2004/0176048 A1Published application
Keypad lighting using polymer light emitting devices
AssigneeSony Ericsson Mobile Communications AB
InventorsGunnar Klinghult, Mats Larsson
Life of this patent
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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.
Claims62
A wireless terminal comprising:
- a housing;
- a plurality of electronic components in the housing that are configured to transmit and/or receive wireless communications;
- a keypad at least partially in the housing, comprising at least one key;
- and
- a polymer light emitting device on the at least one key.
2 more elements
An electronic device comprising:
- a housing;
- a plurality of electronic components in the housing;
- a keypad at least partially in the housing, comprising at least one key;
- and
- a polymer light emitting device on the at least one key.
2 more elements
A keypad for an electronic device comprising:
- at least one key;
- and
- a polymer light emitting device on the at least one key.
A key for an electronic device comprising:
- a face including an outer surface that is configured for user activation and an inner surface opposite the outer surface;
- and
- a polymer light emitting device on at least one of the inner surface and the outer surface.
A user input device for an electronic device comprising:
- a face including an outer surface that is configured for user activation and an inner surface opposite the outer surface;
- and
- a polymer light emitting device on at least one of the inner surface and the outer surface.
Dependencies are inferred from the claim text.