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What is the composition of TFT LCD screen?

2025-04-09

The TFT LCD consists of multiple key layers that work together to present images. The backlight provides the necessary illumination, the liquid crystals modulate light transmission, and the color filter gives the screen its color. The TFT array ensures pixel-level control for high-resolution display. TFT screens must have back-lighting. There are two modes of TFT, landscape view and portrait view. TFT LCDs offer high image quality and low power consumption, making them ideal for smartphones, tablets, industrial equipment, and more.


TFT-LCD display is mainly composed of the following parts:


  • Polarizers: located on the outermost layer of the LCD screen.
  • Glass substrates: Two pieces of glass sandwiching the liquid crystal layer and providing structural support.
  • TFT Array: A thin film transistor array controls the on/off of each pixel, equivalent to an electronic switch.
  • Color Filter: Decompose white light into three sub pixels: red, green, and blue (RGB), giving the image color
  • Liquid Crystal Layer: sandwiched between two pieces of glass, used to regulate the passage of light.
  • Backlight: Provides a light source for the entire display screen, usually LED.


Besides, there are some features and advantages of TFT LCD display:


  • High resolution
  • Fast response time
  • Low power consumption
  • Excellent color reproduction



JDA display company is a high-tech enterprise specializing in LCD display technology, with extensive R&D and manufacturing experience in the field of TFT color LCD displays. JDA has a team of experienced engineers who master core technologies in TFT LCD modules (LCM), continuously driving product optimization and innovation. Integrating design, research, production, and sales, JDA’s TFT display products are widely used in industrial control systems, smart home devices, medical equipment, automotive displays, and consumer electronics.


If you are looking for TFT display, please contact us. Please share your requirement with us that will be better. Such as interface, COG or COB, display mode etc. We can quickly find the appropriate specification sheet for you. Welcome inquiry.



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