A hinge module including a first body; a second body arranged with respect to the first body; a hinge configured to hinge in response to an angle variation between the first body and the second body; and a display disposed on the first body and the second body. Further, the hinge includes a first hinge housing including an accommodating portion; a second hinge housing having a first end inserted in the accommodating portion; an arc-shaped hinge hole in the second hinge housing; a hinge pin projecting from an inner surface of the accommodating portion of the first hinge housing and penetrating the arc-shaped hinge hole in the second hinge housing; a guide pin coupled to the first hinge housing and inserted into a second end of the second hinge housing; and an elastic member provided in the second end of the second hinge housing and including a curved surface contacting the guide pin.

A standoff device for assisting in maintaining a handheld portable communications device a predetermined distance away from a user's head. Some embodiments use one or more rigid members stowable on the communication device and deployable there from to contact the user's head to establish and indicate a predetermined spaced-apart distance. Some embodiments incorporate panels of resilient materials or fabric for communications privacy. Some embodiments use an electronic range finder on the communications device to alarm when the device is held too close to the head. The standoff device may be attached to or built into the housing of the communications device or may be attached to or built into a case for the communications device.

An electronic device is provided. The electronic device includes a housing of the electronic device, a glass cover installed in at least a portion of the housing, and an opening and closing unit installed to open or close the glass cover from the housing.

A connecting system of a multi-section housing having first to fourth housings including housings with different thicknesses and can be spread open from the connected state to form a flat surface, comprising first hinges which connect end faces of the first and fourth housings, second hinges which connect end faces at the same sides of the second and third housings, and pull-out mechanisms provided between the first and second housings and between the third and fourth housings, which pull out the first and fourth housings from the superposed positions, and which make them adjoin the second and third housings without changing the positions in the thickness direction, the first and fourth housings being made to rotate about the shafts built into the pull-out mechanisms with respect to the second and third housings while being rotated about the first and second hinge shafts to open to form a single flat surface.

A production process of a base with an electronic component includes stamping a metallic circuit with a plurality of branch circuits; integrally forming a first plastic part by injection molding on the metallic circuit so as to form a first semi-finished product; connecting the electronic component with the branch circuit respectively on the first semi-finished product so as to form a second semi-finished product; and integrally forming a second plastic part by injection molding on the second semi-finished product; a step of bending the metallic circuit of the second semi-finished product so as to transfer the first plastic part and the electronic component from a first horizontal position to a second vertical position.