Contactless key for projecting suspended image

A contactless key for projecting a suspended image, the contactless key consisting of

• a substrate;
• a plurality of light-emitting elements, fixed on the substrate;
• a light-blocking element, fixed on the substrate, wherein the light-blocking element has a plurality of accommodating spaces, a first surface, and a second surface, the first surface is opposite to the second surface, the first surface has a plurality of light outlets, the accommodating spaces penetrate through the first surface and the second surface and are respectively communicated with the light outlets, and the light-emitting elements are respectively located in the accommodating spaces;
• and
• an imaging film, disposed opposite the first surface;
• wherein the light-blocking element comprises a plurality of light-blocking walls, the first surface and the second surface are respectively located at two opposite tail ends of the light-blocking walls, the light-blocking walls interlace each other and surround the accommodating spaces;
• the contactless key for projecting a suspended image further comprising a lens layer, wherein the lens layer is disposed on a side of the imaging film back away from the substrate;
• the contactless key for projecting a suspended image further comprising a suspended touch layer, wherein the suspended touch layer is disposed on a side of the lens layer back away from the imaging film.