1.LCD is a liquid crystal display screen. It is mainly divided into STN and TFT.
2.TFT is used inside TFT-LCD to drive LCD pixels. LCD is widely used in TV, desktop computer, mobile phone, monitor and other equipment
3.TFT is configured with a semiconductor switching device for each pixel. Since each pixel can be directly controlled by the point pulse. Therefore, each node is relatively independent and can be continuously controlled. LCD uses the electro-optical effect of liquid crystal to control the transmittance and reflectivity of the liquid crystal unit through the circuit, thus producing beautiful images of different gray levels and up to 16.7 million colors.
1, the principle is different: the liquid crystal pixels of the TFT LCD display are driven by the integrated thin film transistor. The principle of the LCD screen is to fill the liquid crystal material between two parallel plates, and display the image by changing the arrangement of the molecules inside the liquid crystal material through the voltage.
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2, the composition is different: the TFT screen is composed of the LCD board plus the corresponding drive board, power board, high pressure board, key control board, etc. LCD components are: polarizer, glass substrate, Black matrix, color filter, Protective film, Common electrode, liquid crystal, Spacer and so on.