TFT (ThinFilmTransistor) refers to thin film transistor, meaning that each LCD pixel is integrated in the pixel behind the thin-film transistor to drive, so as to achieve high speed, high brightness, high contrast display screen information, is currently one of the best LCD color display device, the effect of which is close to CRT monitors, is now on the laptop computers and desktops on the mainstream display device. Each pixel point of TFT is controlled by the TFT integrated on itself, which is an active pixel point. Therefore, not only the speed can be greatly improved, but also the contrast and brightness have been greatly improved, and the resolution has also reached a high level.
TFT-LCD LCD is a thin-film transistor-type liquid crystal display, which is also known as “true-color” (TFT).TFT liquid crystal has a semiconductor switch for each pixel, and each pixel can be directly controlled by a point pulse, so each node is relatively independent, and can be continuously controlled, which not only improves the speed of the display, but also improves the brightness of the display. TFT liquid crystal for each pixel is equipped with a semiconductor switch, each pixel can be directly controlled by point pulse, so each node is relatively independent, and can be continuously controlled, not only to improve the response speed of the display, at the same time, can accurately control the display of the color gradient, so the TFT liquid crystal color is more true.
TFT for thin-film transistor active matrix liquid crystal display device. tft liquid crystal display in each pixel design a field-effect switching tubes, so that it will be easy to realize the true color, high-resolution liquid crystal display device. Now the TFT-type liquid crystal generally achieve more than 18bit color (218 colors), and even up to 24bit color; in the resolution, to achieve VGA (640 × 480), SVGA (800 × 600), XGA (1024 × 768), SXGA (1280 × 1024), and even UXGA (1600 × 1200) have become a reality.
TFT has good brightness, high contrast, strong sense of hierarchy and vivid colors. The disadvantage is more power consumption, higher cost. TFT type LCD main components include: fluorescent tubes, light guide plate, polarizing plate, filter plate, glass substrate, directional film, liquid crystal materials, thin film transistors and so on.