Abstract: An improved contactless sensing device comprises a cover plate, a case, a base, a light-guiding module, a printed circuit board, and two lateral plates. When the sensing device senses a credit card containing a specific tag, a plurality of second light-emitting elements on the two lateral plates emit light of specific colors. The light is displayed on a light-permeable sensing element of the cover plate through the light-guiding module and a second opening of the housing.

Abstract: The present invention discloses a protective structure of an electronic component comprises a first circuit board, a second circuit board, and a chip module. The first circuit board is provided thereon with a hollow accommodating space and a plurality of first electrode contacts. The second circuit board is provided thereon with a plurality of second electrode contacts. The chip module is disposed in an area enclosed by the second electrode contacts. The hollow accommodating space is topped with the second circuit board such that the chip module is encapsulated between the second circuit board and the hollow accommodating space. Upon detection of separation of the first and second circuit boards under an external force or detection of a short circuit caused to an electrical circuit inside the first circuit board or the second circuit board, the chip module activates a security protection mechanism for deleting information stored thereon so as to prevent the information from being abused.