In recent years, to operate a computer by touch has been brought to human society; this concept introduces a new interaction so that people can use their computers in a more intuitive way. The multi-touch devices are now in a large amount of production and development, and in the near future, everyone may have one or more such devices. In this master thesis, inspired by the idea of putting tabletops together and the principle of large-scale display systems, we are discussing the technology and architecture of establishing a bigger interactive screen via assembling a collection of multi-touch displays. Meanwhile, under this framework, we represent a fast and reasonable mechanism for making such system to be more flexible. Finally, we provide two application scenarios to understand the impact and contribution of this work.