TFT-LCD screen construction and process

- Jul 18, 2018-


lcd driver--第二张图.jpg


LCD generally fills a liquid crystal layer with a thickness of about 3~4um between the upper and lower transparent electrodes, and controls the electric field of the liquid crystal interlayer by filling the voltage of the pixel (Pixel) electrode, thereby adjusting the intensity of the transmitted light, so that the light is generated. Gray level between the dark and the full dark. At present, LCD is mainly composed of color filter (CF), TFT array (TFT Array) substrate and backlight module (Backlight).

    When the operating temperature of the LCD display is below 0 degrees, it will slow down the response time and the effect of contrast. If the LCD module is exposed to temperatures above or below the specified temperature range for long periods of time, this will result in damage to the unrecoverable module. Specifically, that is, the chemical properties of the fluid will be permanently altered. The lifetime of CCFL backlights is greatly reduced.

    Each Pixel of a TFT-LCD has a set of TFTs to control its voltage value. To make the light generated by the backlight module and pass through the LC have different colors, it needs red, blue, and green (R/B/G). The color resistance of the three colors is formed on the CF glass, and the gray scale is used to produce a full color effect; after the TFT array and the CF substrate are respectively fabricated, the LC upper plate and the lower TFT plate are then filled with LC and attached to the group. Finally, a polarizer (Polarizer) is attached. This process is called "LCD process". The last "LCM process" is the connection between the driver IC and the control board (PCBA) and the glass substrate (JI Process). Assembly with the backlight module (MA Process), and finally the lighting detection of the module, etc.