What Is a Tft Lcd ?

TFT (Thin Film Transistor) is a thin film field effect transistor. The so-called thin film transistor means that each liquid crystal pixel on the liquid crystal display is driven by a thin film transistor integrated behind it. In this way, high-speed, high-brightness, and high-contrast display screen information can be achieved. TFT is an active matrix liquid crystal display.

TFT-LCD liquid crystal display is a thin film transistor liquid crystal display, that is, "true color" (TFT). TFT liquid crystal has a semiconductor switch for each pixel, and each pixel can be directly controlled by point pulse, so each node is relatively independent and can be controlled continuously, which not only improves the response speed of the display screen, but also can accurately control the display color level, so the color of TFT liquid crystal is more true.

In the fierce competition of many flat panel displays, TFT-LCD can stand out and become a new generation of mainstream display is by no means accidental, it is the inevitable development of human technology and thinking mode. Liquid crystals have avoided the difficult lighting problem successively, using the excellent characteristics of liquid crystals as light valves to decompose light-emitting display devices into two parts, namely the light source and the control of the light source. As a light source, it has achieved brilliant results in terms of luminous efficiency, full color, and lifespan, and it is still being deepened. Since the invention of LCD, the backlight source has been continuously improved, from monochrome to color, from thick to thin, from side-mounted fluorescent lamps to flat-panel fluorescent lamps. The latest achievements in luminescent light sources will provide new backlight sources for LCDs. With the advancement of light source technology, newer and better light sources will appear and be applied to LCDs. The rest is the control of the light source, transplanting the technology and process of the semiconductor large-scale integrated circuit, successfully developing the thin film transistor (TFT) production process, realizing the matrix addressing control of the liquid crystal light valve, and solving the cooperation between the light valve and the controller of the liquid crystal display, so that the advantages of liquid crystal display can be realized.

Advantages and disadvantages of TFT LCD:

The TFT liquid crystal display is characterized by good brightness, high contrast, strong layering, and bright colors, but it also has the disadvantages of relatively high power consumption and high cost. TFT liquid crystal technology has accelerated the development of mobile phone color screen. Many of the new generation of color screen mobile phones support 65536-color display, and some even support 160,000-color display. At this time, the advantages of high contrast and rich colors of TFT are very important.