Patent ID: 8207872
Filing Date: 2012-06-26
Classification: H01H

Abstract:
1. A mechanical keypad with touch panel function, comprising: a key set comprising a plurality of keycaps and a keytop covering said keycaps; a capacitive touch unit selectively disposed under several of said keycaps and comprising a plurality of openings to accommodate several said keycaps; an elastic layer disposed under said capacitive touch unit and comprising an elastomer and a plurality of plungers corresponding to said keycaps; a backlight layer comprising a plurality of openings to accommodate said several keycaps; and a circuit board disposed under said backlight layer and comprising a plurality of metal domes corresponding to said several keycaps as well as a plurality of dome sheets corresponding to said metal domes, wherein each said metal dome provides a mechanical feedback force so that said keycaps are capable of being in indirect contact with said metal domes and with said dome sheets by means of said plungers.