(Thin Film Transistor) A display screen made with TFT technology is a liquid crystal display (commonly used in notebook and laptop computers) that has a transistor for each pixel. Having a transistor at each pixel means that the current that triggers pixel illumination can be smaller and therefore can be switched on and off more quickly. The displays are also referred to as active displays. The active triggering gives TFT displays a very high display quality which can be compared with a conventional PC monitor: strong contrast, even brightness distribution and expecially the short response time are advantages of this technology. TFT displays enable the view from different angles. Disadvantage of this technology are the high costs. TFT displays need millions of transistors. If only one of them is defective, the complete display will not work optimally.