| 摘要 |
An illuminated touch keyboard includes a light source, a key structure, and a non-contact sensor board. The non-contact sensor board is used for sensing a depressing action of the key structure. The non-contact sensor board includes a light-shading plate, a light guide plate, and a reflecting plate. The light-shading plate includes a first wiring layer. The reflecting plate includes a second wiring layer. Since the light-shading plate, the light guide plate and the reflecting plate are include in the non-contact sensor board, the fabricating cost of the illuminated touch keyboard is reduced, and the overall height of the illuminated touch keyboard is decreased. |
| 主权项 |
1. An illuminated touch keyboard, comprising:
a light source for emitting a light beam; a key structure, wherein when said key structure is depressed, a key signal is correspondingly triggered; and a non-contact sensor board disposed under said key structure for sensing a depressing action of said key structure, thereby generating said key signal, wherein said non-contact sensor board comprises:
a light-shading plate comprising a first wiring layer and plural light-transmissible regions, wherein said first wiring layer is formed on a first surface of said light-shading plate, and said light beam is transmissible through said plural light-transmissible regions;a light guide plate disposed under said light-shading plate for transferring said light beam, which is emitted by said light source; anda reflecting plate disposed under said light guide plate for reflecting said light beam, wherein said reflecting plate comprises a second wiring layer, and said second wiring layer is formed on a second surface of said reflecting plate.
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