Keypad lighting using polymer light emitting devices
First Claim
Patent Images
1. 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 that comprises;
at least one wall including first and second opposing ends;
a nonplanar face that extends from the first end and including an outer surface facing away from the second end that is configured for user activation and an inner surface opposite the outer surface and facing toward the second end; and
a nonplanar polymer light emitting layer on the outer surface, opposite the inner surface.
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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.
37 Citations
48 Claims
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1. A wireless terminal comprising:
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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 that comprises; at least one wall including first and second opposing ends; a nonplanar face that extends from the first end and including an outer surface facing away from the second end that is configured for user activation and an inner surface opposite the outer surface and facing toward the second end; and a nonplanar polymer light emitting layer on the outer surface, opposite the inner surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device comprising:
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a housing; a plurality of electronic components in the housing; a keypad at least partially in the housing, comprising at least one key that includes a nonplanar face; and a nonplanar polymer light emitting layer on the at least one key that is conformal to the nonplanar face; wherein the at least one key comprises a first key and a second key, wherein the nonplanar polymer light emitting layer on the first key is configured to emit light of a first color and wherein the nonplanar polymer light emitting layer on the second key is configured to emit light of a second color that is different from the first color. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A keypad for an electronic device comprising:
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at least one key including a nonplanar face; and a nonplanar polymer light emitting layer on the at least one key that is conformal to the nonplanar face; wherein the at least one key comprises a first key and a second key, wherein the nonplanar polymer light emitting layer on the first key is configured to emit light of a first color and wherein the nonplanar polymer light emitting layer on the second key is configured to emit light of a second color that is different from the first color. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A key for an electronic device comprising:
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at least one wall including first and second opposing ends; a nonplanar face that extends from the first end and including an outer surface facing away from the second end that is configured for user activation and an inner surface opposite the outer surface and facing toward the second end; and a nonplanar polymer light emitting layer on the outer surface opposite the inner surface and that is conformal to the nonplanar face. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
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41. A user input device for an electronic device comprising:
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at least one wall including first and second opposing ends; a nonplanar face that extends from the first end and including an outer surface facing away from the second end that is configured for user activation and an inner surface opposite the outer surface and facing toward the second end; and a nonplanar polymer light emitting layer on the outer surface opposite the inner surface and that is conformal to the nonplanar face; wherein the nonplanar polymer light emitting layer is configured to emit light of a first color and to emit light of a second color that is different from the first color. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification