发明名称 Electronic device
摘要 An easy to use electronic device is provided. The electronic device functions as a telephone and has a display portion, an audio input portion, an audio output portion, and operation keys. The display portion has a passive element, and the operation keys have LEDs. The direction of an image displayed by the LEDs is switchable.
申请公布号 US8644498(B2) 申请公布日期 2014.02.04
申请号 US201313739078 申请日期 2013.01.11
申请人 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 YAMAZAKI SHUNPEI;KOYAMA JUN;YAMAZAKI YU
分类号 H04M1/00;G06F3/02;G09G3/32;G09G3/36;G09G5/00;H04M1/02;H04M1/725 主分类号 H04M1/00
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