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.
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
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