The operating face includes a display screen and a keypad.

The first element (4) has at least one functional face to which the set of sash hinge parts (22) of the hinge connection is adapted to be connected.

The two bodies (2, 3) have a control surface (2B, 3B) and a functional surface (2A, 3A).

The hollow portion may be arranged around the casing in a first so-called decorative position in which the decorative surface (19) is visible and in a so-called functional position in which the functional surface (20) is visible.

Here, R1 is the radius of the circular cross-section of the operational surface with mid-point M1, and R2 is that of the operational surface with mid-point M2.

Said structural part has a bore whose inner wall is provided with the functional face (12) of a friction bearing.

The heat conducting plate (14) includes a depression (16) and at least one groove (20) provided on the operative top face thereof.

A device (200) with a front face (210) such as an operating face, including elements of the user interface (202, 206, 203, 204) of the device, is provided.

A functional module (300) having a front side and a back side is adapted to removably install in the wiring module (1600) proximate the functional side.

Conical strip (3) has on its internal circumferential wall unilateral wedge (4) whose front surface (5) is parallel to the top surface (1) and whose working surface (6) is convergent to the conical strip (3).

A plurality of structured sockets are disposed on the functional side, the structural sockets incorporate a portion of the terminal set.

A mobile device (1) has a housing with an operating face (13) and at least one other surface area.

In order to provide the pane module with a number of functionalities traditionally performed by the frame, the pane module comprises at least one functional face.