| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an input device capable of illuminating an illumination instructing portion with uniform brightness, by intensively adding illumination light on the illumination instructing portion formed on a key top and the like. <P>SOLUTION: A membrane laminated body 20 in which a spacer 23 is sandwiched between a front side base material 21 and a back side base material 22 is provided, a fixing electrode 26 is provided on the back side base material 22, and moving electrodes 27a and 27b and a wiring layer 28 are provided on a back surface 21b of the front side base material 21. On a front surface 21a of the front side base material 21, a light-shielding layer 31 formed by printing. An opening portion 32b opens to the light-shielding layer 31, and the opening portion 32b opposes to an illumination instructing portion of a key top. On a back side of the membrane laminated body 20, a light-guiding layer 3 is provided, and an irregularly reflecting portion 35b opposing to the opening portion 32b is formed on the light-guiding layer 3. The light-shielding layer 31 is formed on a surface of the membrane laminated body 20, so that it is unnecessary to separately provide a cover layer, and illumination light can be intensively added to the illumination instructing portion through the opening portion 32b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
