| 摘要 |
PROBLEM TO BE SOLVED: To provide a display part for a three-dimensional display by an inexpensive and easy manufacturing method, by providing a recessed display part with a depth of not less than a specific value on the back surface of a transparent key top, by coloring the peripheral wall surface of the recessed part slanted inward to the bottom surface, and in addition by bonding a key pad of rubber-like elastic body to its underneath. SOLUTION: A recessed part with a depth of not less than 0.3 mm is formed on the back surface of a key-top 1 of a transparent resin so that it turns toward its surface side from the back surface, and is shaped so that the peripheral wall surface of this recessed part slantingly gets narrower as it gets closer toward the bottom surface. The inside of the recessed part is colored by a coloring part 9 to form a display part, and the key pad 2 of a rubber-like elastic body is bonded to the underneath of the colored layer 10 provided on the back surface of the key top 1 by an adhesive 3. The recessed part on the back of the key top 1 can be easily molded by protrusively processing a molding die of the key top 1 to a desired shape in advance, and the coloring part 9 is obtained from a substance formed by hardening a liquid organic high polymer. Thereby, a high quality three-dimensional display part can be obtained.
|
