| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem about maintenance of a sense of beauty, security, and privacy without deteriorating detection sensitivity. SOLUTION: A detection electrode 2 composed of a transparent electrode to detect approach of a human body is arranged on the rear face of a design plate 1, and this detection electrode 2 is opposed to a backlight 6. A mask plate 3 for display in which a light transmission pattern 3a is formed is installed on the backlight 6. A second light source 7 is arranged on the rear side of the backlight 6. The mask plate 3 for the display, the backlight 6, or the second light source 7 cannot be recognized visually in a normal state because they are covered by the design plate 1. When a finger of an operator approaches the detection electrode 2, the backlight 6 is switched on and the light transmission pattern 3a looms up on a surface 1a of the design plate 1. If the finger is contacted with that part, the second light source 7 is lighted on, and because brightness and color or the like of the light transmission pattern 3a which has loomed up on the design plate 1 are changed, it is confirmed by this that the switch is turned to be ON state. COPYRIGHT: (C)2006,JPO&NCIPI
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