An illuminated keypad key and method of manufacture thereof, having a light-permeable resin key top, a film having a pattern formed in one side thereof, the film being fixed to the upper and side surfaces of the transparent resin key top, cutting away portions of the film that extend beyond the lower...http://www.google.fr/patents/US6084190?utm_source=gb-gplus-shareBrevet US6084190 - Illuminated keypad key and method of manufacture thereof
Illuminated keypad key and method of manufacture thereof
