Screen comprising: - a transparent panel, - a photon-generating layer in order to form each luminous pixel visible through the transparent panel, this layer being housed behind the transparent panel, - a device for localizing a movable magnetic object able to be moved directly by hand by a human being in front of the panel, and - a human/machine interface able to control the photon-generating layer in order to modify the display of an image by the screen, this human/machine interface comprising a unit able to control the photon-generating layer in order to modify the display depending on the localization determined by the localizing device, said screen being characterized in that the localizing device is a device for localizing a movable permanent magnet able to be moved directly by hand by a human being in front of the panel, this device comprising for this purpose: • a network of magnetometers comprising N tri-axis magnetometers (M ij) mechanically connected to one another with no degree of freedom in order to maintain a known distance between each of these magnetometers, where N is a whole number higher than or equal to five, and • an electronic processing unit able to determine the position and/or the orientation of the permanent magnet from the measurements of the magnetometers of this network, this determined position and/or determined orientation being the localization determined by the localizing device. - a transparent panel, - a photon-generating layer in order to form each luminous pixel visible through the transparent panel, this layer being housed behind the transparent panel, - a device for localizing a movable magnetic object able to be moved directly by hand by a human being in front of the panel, and - a human/machine interface able to control the photon-generating layer in order to modify the display of an image by the screen, this human/machine interface comprising a unit able to control the photon-generating layer in order to modify the display depending on the localization determined by the localizing device, said screen being characterized in that the localizing device is a device for localizing a movable permanent magnet able to be moved directly by hand by a human being in front of the panel, this device comprising for this purpose: • a network of magnetometers comprising N tri-axis magnetometers (M ij) mechanically connected to one another with no degree of freedom in order to maintain a known distance between each of these magnetometers, where N is a whole number higher than or equal to five, and • an electronic processing unit able to determine the position and/or the orientation of the permanent magnet from the measurements of the magnetometers of this network, this determined position and/or determined orientation being the localization determined by the localizing device. • a network of magnetometers comprising N tri-axis magnetometers (M ij) mechanically connected to one another with no degree of freedom in order to maintain a known distance between each of these magnetometers, where N is a whole number higher than or equal to five, and • an electronic processing unit able to determine the position and/or the orientation of the permanent magnet from the measurements of the magnetometers of this network, this determined position and/or determined orientation being the localization determined by the localizing device.