| 摘要 |
PROBLEM TO BE SOLVED: To enable to realize an easy recognition of a display formed on an operation key while securing a down-sizing. SOLUTION: A key main body 21 is formed with a transparent material, the first display 22 is printed and formed on a base part of this key main body 21, while, a semi-transparent film 23 whose transmissivity is inferior to that of the key main body 21 is coated on a tip end part of the key main body 21, and the second function display 24 is formed on this semi-transparent film 23 and it is so constructed that the first function display 22 is made to be selectively displayed on the key main body 21 together with the second function display 24 by the transmission of the semi-transparent film 23 according to driving or non-driving of a light emitting diode 25.
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