A thin-film transistor (TFT) is a special kind of field-effect transistor made by depositing thin films of an active semiconductor layer as well as the dielectric layer and metallic contacts over a supporting (but non-conducting) substrate.

A Thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast.

Een thin-film transistor of tft wordt voornamelijk toegepast in zogenaamde tft-schermen, thin film transistor liquid crystal displays, wat een verbeterde versie van een lcd-scherm is.

Thin Film Transistor (TFT), in italiano transistor a pellicola sottile, è una tecnologia applicata ai display piatti a cristalli liquidi o ad OLED che vengono in questo modo identificati come display a matrice attiva.

Dieser Artikel beschreibt das elektronische Bauelement Transistor.Für das gleichnamige Videospiel siehe Transistor (Videospiel).

1. INTRODUCTION - A transistor is a small electronic device that can cause changes in a large electrical output signal by small changes in a small input signal.That is, a weak input signal can be amplified (made stronger) by a transistor.