Illuminated key-pad assembly

For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depress...

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Main Authors Chen, Chao Carl, Kyowski, Timothy Herbert, Penner, Dennis James
Format Patent
LanguageEnglish
Published 02.03.2010
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Abstract For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depressed). Sockets for receiving the key-caps are co-molded to the light-strips. Sockets are provided in the resilient webs of the keys for receiving under-blocks co-molded to the light-strips.
AbstractList For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depressed). Sockets for receiving the key-caps are co-molded to the light-strips. Sockets are provided in the resilient webs of the keys for receiving under-blocks co-molded to the light-strips.
Author Chen, Chao Carl
Penner, Dennis James
Kyowski, Timothy Herbert
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References Norris et al. (5510782) 19960400
Shipman (2005/0068202) 20050300
(2737697) 19780300
Lin (5635927) 19970600
(20201423) 20020700
(WO2006/117659) 20061100
(202004001350) 20040500
Parker et al. (6886956) 20050500
(WO2006/138149) 20061200
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Snippet For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The...
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Title Illuminated key-pad assembly
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