TDF ( diodes, film, Slim ) is a type of display technology flat panel LCD (liquid crystal display ). The technology of TDF excellent quality image and quick time reaction of the TFT with low power consumption and low cost STN integration . The technology of TDF, a technology matrix is active, i.e. a circuit ( a diode ) near each pixel is located and pixels separately switched on and off . This time, the reaction faster and more difference in comparison with the technology of Matrix - non-active makes it possible.