Abstract: A function key assembly and a portable device having the same. The function key assembly is exposed to an outside of the portable device having a screen to allow a user to select various functions, includes a direction key unit provided in the portable device, and having a plurality of buttons to select or move a menu on the screen, a mode key unit movably provided around the direction key unit to allow the user to select a predetermined mode provided from the portable device according to a position motion thereof, and a circuit board provided inside the portable device to prevent the direction key unit and the mode key unit from being detached therefrom, and having switches to generate signals in response to an operation of the direction key unit and the mode key unit.

Abstract: A function key assembly and a portable device having the same. The function key assembly is exposed to an outside of the portable device having a screen to allow a user to select various functions, includes a direction key unit provided in the portable device, and having a plurality of buttons to select or move a menu on the screen, a mode key unit movably provided around the direction key unit to allow the user to select a predetermined mode provided from the portable device according to a position motion thereof, and a circuit board provided inside the portable device to prevent the direction key unit and the mode key unit from being detached therefrom, and having switches to generate signals in response to an operation of the direction key unit and the mode key unit.

Abstract: Disclosed is an electronic instrument including a body of the electronic instrument; a board installed in the body and having a tact switch operated by downward press force; a front panel attached at a front of the body; a control button fixed to a back face of the front panel at its one end so as to be resiliently deformed by a press force applied from a front direction thus to operate the tact switch; a supporting rib provided at the back face of the front panel to support an end of the control button; and a contact rib protruding from the back face of the front panel by a predetermined height so as to contact and support a certain position between the resiliently deformed portion and the fixed end of the control button.

Abstract: Disclosed is an electronic instrument including a body of the electronic instrument; a board installed in the body and having a tact switch operated by downward press force; a front panel attached at a front of the body; a control button fixed to a back face of the front panel at its one end so as to be resiliently deformed by a press force applied from a front direction thus to operate the tact switch; a supporting rib provided at the back face of the front panel to support an end of the control button; and a contact rib protruding from the back face of the front panel by a predetermined height so as to contact and support a certain position between the resiliently deformed portion and the fixed end of the control button.