20140373405 | DISPLAY DEVICE - A display device for displaying information comprises a display body having a front side and rear side and comprising at least one cavity between them. The cavity is connected in a closed fluid circuit comprising supply fluid lines, return fluid lines and a fluid reservoir and the circuit is suitable to contain a coloured fluid. There is also arranged a pump for circulating coloured fluid in the fluid circuit. The cavity is shaped to form symbols representing the information to be displayed when filled with coloured fluid. | 12-25-2014 |