A display device for text and images for attachment to translucent panes to which light of varying intensity is applied from the back of the panes, comprising - an electrical screen as a translucent display panel for the direct display of information consisting of a large number of electronically controlled pixels arranged in a grid-like manner, - LED lighting generating light sources located behind the rear in a direction of view, and - a Smart Window arranged behind the screen parallel to it, that is, a window that can be optically switched from transparent to translucent to opaque, wherein the smart window is arranged at such a distance that the light sources are positioned between the screen and the smart window , and wherein there is an optical sensor for detecting the incident light, by means of which the LED lighting is controlled in its intensity in such a way that the light intensity incident on the back of the screen is essentially constant, characterized in that the display device is designed so that a reversal of the viewing direction, that is, viewing from the rear of the screen , is possible by - the Smart Window comprising a large number of image points arranged in a grid-like manner, in particular designed as a TFT matrix display, the screen taking over the function of the Smart Windows and the sensor allowing light intensity measurement in both directions, or - a second smart window being present, which is positioned relative to the first smart window on the opposite side of the screen at a comparable distance as the first smart window , and a second light source is present which • is positioned between the screen and the second Smart Window, and • is used for background lighting when viewed in the opposite direction, and wherein the display device is prepared to carry out a mirror reflection with respect to a vertical axis in order to display the information mirror-symmetrically correct when the viewing direction is reversed. - an electrical screen as a translucent display panel for the direct display of information consisting of a large number of electronically controlled pixels arranged in a grid-like manner, - LED lighting generating light sources located behind the rear in a direction of view, and - a Smart Window arranged behind the screen parallel to it, that is, a window that can be optically switched from transparent to translucent to opaque, wherein the smart window is arranged at such a distance that the light sources are positioned between the screen and the smart window , and wherein there is an optical sensor for detecting the incident light, by means of which the LED lighting is controlled in its intensity in such a way that the light intensity incident on the back of the screen is essentially constant, characterized in that the display device is designed so that a reversal of the viewing direction, that is, viewing from the rear of the screen , is possible by - the Smart Window comprising a large number of image points arranged in a grid-like manner, in particular designed as a TFT matrix display, the screen taking over the function of the Smart Windows and the sensor allowing light intensity measurement in both directions, or - a second smart window being present, which is positioned relative to the first smart window on the opposite side of the screen at a comparable distance as the first smart window , and a second light source is present which • is positioned between the screen and the second Smart Window, and • is used for background lighting when viewed in the opposite direction, and wherein the display device is prepared to carry out a mirror reflection with respect to a vertical axis in order to display the information mirror-symmetrically correct when the viewing direction is reversed. • is positioned between the screen and the second Smart Window, and • is used for background lighting when viewed in the opposite direction, and <EOS>