SWITCH BUTTON AND SWITCH DEVICE AS WELL AS PORTABLE TELEPHONE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a switch button with high expressiveness by making a display symbol on the switch button bright or solid. SOLUTION: A recessed portion 3 is provided in a switch button portion 2 where a display symbol is formed, and a LED 5 is arranged on the side face of the switch button portion 2. The surface of the recessed portion 3 is made bright by a light coming into the recessed portion 3 after injected from the LED 5 to an injection portion 7 and reflected by reflection portions 6, 8, improving the visibility of the display symbol and the expressiveness of the display symbol.