DEVICE WITH OPERATION BUTTON

摘要

PROBLEM TO BE SOLVED: To provide the device (communication equipment such as a portable telephone device and a calculator, etc.), with operation buttons of an image unlike before with high decoration effects. SOLUTION: By arranging the LED 3d of 'red', the LED 3c of 'amber', the LED 3b of 'green' and the LED 3a of 'blue' in this order as the backlight of buttons 1 and a liquid crystal display part 2 from the lower end part to upper end part of the portable telephone device, a gradation, starting from a warm color group to a cold color group is formed and the portable telephone device with high color tone effects is provided.