High Bright 5Inch LED Outdoor TFT LCD Panel

Analysis of the internal structure of the TFT LCD screen.

At present, whether it is a liquid crystal display, a mobile phone, a tablet computer, a monitor or a TV, most screens use an active matrix. This structure uses an electrical conversion device called a thin film transistor to turn on and off the pixels. TFT refers to this thin film transistor TFT LCD Display.

TFT refers to a thin film transistor, and each liquid crystal pixel is driven by a thin film transistor integrated behind the pixel, which can realize high-speed, high-brightness, and high-contrast display information. Each pixel of the TFT is controlled by the TFT integrated on its body, which is an active pixel. So not only the speed can be greatly improved, the contrast and brightness are also greatly improved, and the resolution has reached a very high level LCD Display Module.

The TFT is located in the pixel drive module on the glass substrate under the liquid crystal panel, and has a thin film shape, which is embedded in the drive module together with the pixel elements. Generally, the characteristics of a TFT screen are basically the same as that of a semiconductor transistor, which drives the current to charge the pixel capacitor and light up the pixel electrical conversion device Organic Light Emitting Diode.

The internal structure of the TFT LCD screen can be viewed as a layer of liquid crystal sandwiched between two glass substrates, which is also a common feature of all liquid crystal panels. The LCD panel is actually a liquid crystal cell. The upper glass substrate is combined with the color filter, and the lower glass is inlaid with transistors. When the current passes through the transistor, the electric field changes to cause the liquid crystal molecules to deflect, thereby changing the polarization of the light, and then the polarizer is used to determine the light and dark state of the pixel.