,b>Nedit from Germany showed 'Media Face' - a low resolution video surface that's ideal for building facades, billboards, giant advertising hoardings and other large-format applications. It can also be used indoors in sizes of 1,000sq.m and over. Transparency is often an issue, and this screen can be fitted over the glass facades and windows of a building without obliterating the lighting or the view for those still working inside.