Dual-functional circuit assembly for light-emitting key and manufacturing method of dual-functional circuit assembly

Abstract

The invention discloses a dual-functional circuit assembly for a light-emitting key and a manufacturing method of the dual-functional circuit assembly. The dual-functional circuit assembly comprises afirst insulation base material, a first circuit, a second circuit, a second polymer film and an elastic actuator, wherein the first circuit is formed on the first insulation base material, the secondcircuit is formed on an insulation layer and comprises at least two switch connection points, the second polymer film is provided with a first breakage hole and at least one second breakage hole, each second breakage hole is corresponding to a pair of pins, a second insulation base material is attached onto the insulation layer, the at least two connection points are placed in the first breakagehole, each pair of pins are arranged in the corresponding second breakage hole, each light-emitting diode assembly is fixed in the second breakage hole corresponding to the light-emitting diode assembly, an abutting pin of each light-emitting diode assembly is welded with the pair of corresponding pins, the elastic actuator is arranged at the periphery of the first breakage hole, and a tail end ofan actuating post faces the at least two switch connection points. The dual-functional circuit assembly has the thin film switch function and the light source circuit board function.

Description

technical field [0001] The invention relates to a dual-function circuit assembly for luminous keys and a manufacturing method thereof, in particular to a dual-function circuit assembly having the functions of a membrane switch and a light source circuit board and a manufacturing method thereof. Background technique [0002] Illuminated keyboards have become a common input peripheral device on the market. The luminous keyboard of the prior art includes a membrane switch assembly, a light source circuit board welded with an LED assembly, a light guide plate, a bottom plate, and the like. Regarding the assembly of the luminous keyboard, the membrane switch assembly, the flexible circuit board soldered to the LED assembly, the light guide plate and other components and components are sequentially arranged on the bottom plate. [0003] However, the thickness of the membrane switch assembly, the light source circuit board and the light guide plate account for a considerable propo...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to reduce the overall thickness of the thinned luminous keyboard of the prior art

[0004] In addition, the assembly procedure of the luminous keyboard of the prior art is also relatively cumbersome

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