发明名称 |
Illumination type keyboard |
摘要 |
An EL element includes plural light-emitting regions for illuminating corresponding push buttons, and is disposed beneath the push buttons. The EL element is connected to a switching contact and a controller. An light-emitting operation of the EL element is controlled by the controller to illuminate a certain push button. The keyboard including the above components can provide multiple functions for illuminating the push buttons although having a simple structure.
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申请公布号 |
US6764191(B2) |
申请公布日期 |
2004.07.20 |
申请号 |
US20020159385 |
申请日期 |
2002.05.31 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
DOUZONO SHIGETAKA;INOUE TAKEFUMI;KOMA TETSUYA;ABE YOSHIHARU |
分类号 |
H01H13/02;G06F3/02;H01H13/70;(IPC1-7):F21V9/16 |
主分类号 |
H01H13/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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