TFT

TFT（Thin Film Transistor）, allows the Transistor to 'proactively' control individual pixels on a screen in an effort to make the reaction time incredibly fast. General TFT response time is relatively fast, about 80 milliseconds, and the viewing Angle is large, generally can reach about 130 degrees, mainly used in high-end products. Thus can achieve high speed, high brightness, high contrast display screen information. Belongs to active matrix LCD TFT, technically "active matrix" is adopted to drive, the method is to use thin film transistors electrode technology have made, by using the method of scanning "active" control an arbitrary point on and off, when the lights first by polarizing film under high up, with the help of transmission light liquid crystal molecules, reach the purpose of display by shading and pervious to light.

With the gradual popularization of mobile phone color screen, the material of mobile phone screen becomes more and more important. Color screens of mobile phones vary depending on LCD quality and research and development technology. There are TFT, TFD, UFB, STN and OLED. In general, the more colors you can display, the more complex images you can display, and the more layers you can display.

A Liquid crystal display (LCD) consists of a liquid crystal panel and a back light panel:

The liquid crystal panel (liquid crystal box) comprises a polarizer, a glass substrate, a color filter film, an electrode, a liquid crystal and a directional layer.

The backlight module consists of a cold cathode fluorescent lamp (CCFL), a light guide plate (lightguide), a diffuser plate and a prism, whose function is to transmit the light source uniformly to the LCD panel.