The present invention provides composite display modules which have reduced visible dead space between display modules. This is of particular interest for the price rail, where it is desirable to achieve a long (about 3-4 ft) section of an active module. The present invention is directed to a composite display module comprising: (a) more than one single display module, wherein said single display modules are not edge-sealed and they are mounted on a single back support structure and are kept tightly close to each other right up to their edges; and (b) said composite display module is edge sealed.