| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a key top emitting light while reducing power consumption. <P>SOLUTION: A key input device 10 includes a key top 200 having a layer of phosphorescent material of a predetermined thickness and a switch part 500 that is provided with a contact opening and closing according to the vertical movement of the key top and generates an input signal according to the opening and closing of the contact. <P>COPYRIGHT: (C)2012,JPO&INPIT |
