Thin Film Transistor is a kind of Field Effect Transistor which uses a non-semiconductor substrate to deposit thin layers of semiconductor, dielectric and metallic contacts on top. Glass finds predominant use as substrate as this technology is widely used in LCDs. When used in LCDs, transistors are embedded into the panel and there is a transistor for each pixel on display owing to the small size of transistors. Because the amount of charge required to control a small transistor is also small, TFTs allow faster image re-drawing hence delivering crisp text and vibrant colors.
Filed Under: What Is