PURPOSE: To prevent the occurrence of an interference fringe by overlaying a louvre film as integral part of a skin film laid on the surface of a touch switch body via an insert molding process.

CONSTITUTION: A light transmission display panel formed out of a skin film 25 and a louvre film 26 integrated with each other via an insert molding process, is superposed on the upper surface of a touch switch body 29, while a display 22 is superposed on the reverse side of the body 29, thereby forming a touch switch device. In this touch switch device, the number of superposed sections is reduced by one, and superposition appears at two positions (two planes), thereby enhancing the restriction of interference fringe occurrence. According to this construction, display quality is improved.