Window control device for controlling the up and down displacement of a window glass

A window control device for controlling the up and down displacement of a window glass comprising:

• first and second permanent magnet strips attached to the window glass;
• a window frame surrounding at least partially the window glass and being provided with first and second sets of electromagnets;
• and
• a control system for controlling the polarity of the electromagnets and the intensity of the magnetic field generated by the first and the second sets of electromagnets so that, in a locked state, the first set of electromagnets are adapted to attract the first permanent magnet strip, thus preventing any up and down displacement of the window glass, and, in a released state of the window glass, the first set of electromagnets are adapted to repel the first permanent magnet strip, thus allowing an up and down displacement of the window glass, and the second set of electromagnets are adapted to generate selectively a repulsive and/or attractive force on the second permanent magnet strip, thus resulting in an up or down displacement of the window glass.