| 摘要 |
An illuminated sign ( 88 ) includes a flexible electrical power cord ( 100 ) including first and second parallel conductors ( 112, 114 ) surroundingly contained within an insulating sheath defining a constant separation distance between the parallel conductors ( 112, 114 ). A plurality of light emitting diode (LED) devices ( 102 ) are affixed to the cord ( 100 ). Each LED device ( 102 ) includes an LED ( 104 ) having a positive lead ( 130 p) electrically communicating with the first parallel conductor ( 112 ) and a negative lead ( 130 p) electrically communicating with the second parallel conductor ( 114 ). A stencil ( 92 ) defines a selected shape, and the electrical cord ( 100 ) is arranged on the stencil ( 92 ). Power conditioning electronics ( 210, 220 ) disposed away from the stencil ( 92 ) electrically communicate with the first and second parallel conductors ( 112, 114 ) of the electrical power cord ( 100 ). The power conditioning electronics ( 210, 220 ) power the LED devices ( 102 ) via the parallel conductors ( 112, 114 ).
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