| 摘要 |
A luminous keyboard includes a lateral-emitting type illumination element, a light guide panel, a sensing circuit pattern, a light-transmissible supporting plate, and plural keys. The lateral-emitting type illumination element is used for providing a light beam to the light guide panel. Consequently, the light beam can be diffused to the whole light guide panel. The light guide panel has plural light-guiding dots for collecting and scattering the light beam. The light-transmissible supporting plate is arranged between the light guide panel and the plural keys, and has plural light diffusion structures corresponding to the plural keys. The light beam scattered upwardly by each light-guiding dot is sequentially transmitted through the corresponding light diffusion structure and directed to the corresponding key. When one of the keys is moved toward the sensing circuit pattern, the sensing circuit pattern generates a corresponding non-contact key signal. |
| 主权项 |
1. A luminous keyboard, comprising:
a sensing circuit pattern for generating at least one non-contact key signal; at least one key, wherein when said at least one key is depressed, said at least one non-contact key signal is correspondingly generated by said sensing circuit pattern; a lateral-emitting type illumination element for providing a light beam; a light guide panel, wherein said lateral-emitting type illumination element is located at a lateral side of said light guide panel, and said light guide panel has at least one light-guiding dot for collecting and scattering said light beam from said lateral-emitting type illumination element; and a light-transmissible supporting plate arranged between said light guide panel and said at least one key for connecting and supporting said at least one key, wherein said light-transmissible supporting plate has at least one light diffusion structure corresponding to said at least one key for changing an optical path of said light beam from said at least one light-guiding dot, so that said light beam from said at least one light-guiding dot is transmitted through said at least one light diffusion structure and then directed to said at least one key.
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