| 摘要 |
A key input device includes a key input section, mode switching section, key backlight, and key backlight lighting control section. The key input section inputs characters by key input in a plurality of character input modes. The mode switching section switches a plurality of character input modes. The key backlight is placed on a lower surface of the key input section and is lighted in a plurality of colors. The key backlight lighting control section changes the lighting color of the key backlight in accordance with switching of character input modes. A cell phone is also disclosed.
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