TFT LCD screen structure
May 18, 2018
TFT LCD screen has good brightness, high contrast, strong sense of hierarchy, and bright colors. The disadvantage is that it consumes more electricity and costs more. The main components of the TFT-type liquid crystal display include fluorescent tubes, light guide plates, polarizing plates, filter plates, glass substrates, alignment films, liquid crystal materials, thin mode transistors, and the like. But what is its structure?
The following is the structure of TFT LCD screen for you to share:
TFT LCDs are made up of multiple layers, just like sandwiches. The outermost layer on both sides is a highly transparent glass layer. In the middle of the glass layer is a film capacitor, a color filter necessary for generating the three primary colors of red, blue, and green, and a liquid crystal layer. A fluorescent back light source illuminates behind the screen power to complete the LCD display.
In general, when there is no charge, the liquid crystal is in an unordered state. In this state, the liquid crystal is transparent to light, and a variety of different charges are applied to the liquid crystal layer, crystals in the liquid crystal are deflected in different directions, and the liquid crystal layer is formed with different light transmittance.
Just like a conventional cathode ray tube display, red, green and blue three-color liquid crystals are mixed to form one pixel. Control the voltages of the three color points red, green, and blue, and mix three colors of different concentrations to form the desired colors.
The screen power of the entire TFT display is composed of a grid of pixels. The first point has a transistor control. The resolution is formed by these points. If the resolution of a liquid crystal display is 1024*768 pixels (SVGA), then it really has many points.
