Today, most of the displays are used to show the full color video signals by CRT, LCD, PDP, OLED and LED technologies. Usually to manufacture inexpensive small displays with limited resolution the CRT technology is used. To construct large and high resolution displays with dimensions up to 60 inches LCD and PDP technologies are used. In recent years some progress has occurred in OLED technologies and it seems it will challenge the others. Another application of the displays is very large displays with various resolutions, far apart from the viewers. In this type of displays, pixel sizes are bigger than normal displays and pixel pitch can be as big as several centimeters. Usually discrete LEDs are used to manufacture this type of displays. Use of the big displays built by LEDs is increasing in recent years so a lot of attempts are made to build displays with higher resolutions to make them more attractive. As the resolution increases, receiving, transmitting and distributing of data to pixels will become a very big challenge. The challenge is very clear with respect to the big amount of data and the short time needed to distribute these data especially in HDTV systems. TFT circuits are used to solve the problem in LCD, PDP and OLED technologies. But in big displays with discrete LEDs the TFT technology cannot be used, so to have a better scheme of data distribution the display is divided to smaller parts to decrease the amount of data for each part incidentally each part is scanned independently. According to the enormous number of used LEDs in these displays and the amount of transmitted data, numerous resources are needed to scan the whole pixels and the data distribution network is so expanded. In this thesis different kinds of displays are reviewed with a special attention to the LED based displays, and an attempt is made to propose a new and efficient scheme to distribute data among the different blocks of the display. To make a more efficient distribution network, LVDS signaling technology is used. Finally a FPGA based system is suggested to implement a full color scanning system with high dimension and HDTV resolution.