lcd refers to the liquid crystal display screen. Its full English name is Liquid Crystal Display. It is a type of flat panel display and is used for screen displays on televisions and computers. The LCD screen uses two pieces of polarized material. The liquid crystal solution in the liquid crystal causes the crystal to rearrange when the current passes through the liquid to achieve the purpose of imaging.
#The operating environment of this article: Windows 7 system, Dell G3.
What kind of screen is lcd?
lcd refers to the liquid crystal display.
Liquid crystal display, the English abbreviation of LCD, the full name is Liquid Crystal Display, is a type of flat panel display. Used for TV and computer screen displays. The advantages of this display are low power consumption, small size, and low radiation.
The LCD screen uses a liquid crystal solution in two pieces of polarized material. When the current passes through the liquid, the crystals will rearrange to achieve the purpose of imaging.
Brief introduction
Liquid crystal display (LCD) A type of display used in digital clocks and many portable computers. LCD displays use two pieces of polarized material with a liquid crystal solution between them. Passing an electric current through the liquid rearranges the crystals so that light cannot pass through them. Therefore, each crystal acts like a blind, allowing light to pass through and blocking it out. Liquid crystal displays (LCDs) Currently, scientific and technological information products are developing towards the goals of being light, thin, short, and small. Display products with a long history in computer peripherals are certainly no exception. Under the premise of being easy to carry and transport, traditional display methods such as CRT picture tube monitors and LED display panels are limited by factors such as being too large or having huge power consumption, and cannot meet the actual needs of users. The development of LCD technology is in line with the current trend of information products. Whether it is right-angle display, low power consumption, small size, or zero radiation, it allows users to enjoy the best visual environment.
Main classification
LCD displays can be classified according to the driving method into static driving (Static), simple matrix driving (Simple Matrix) and active matrix driving (Active Matrix) three types. Among them, the passive matrix type can be divided into twisted nematic (Twisted Nematic; TN), super twisted nematic (Super Twisted Nematic; STN) and other passive matrix driven liquid crystal displays; while the active matrix type can be roughly divided into There are two methods: thin film transistor type (Thin Film Transistor; TFT) and two-terminal diode type (Metal/Insulator/Metal; MIM).
TN, STN and TFT LCD monitors use different twisting principles of liquid crystal molecules, and have different levels of viewing angle, color, contrast and animation display quality, which make them classified in the application range of the products. There are also obvious differences. In terms of the scope and level of current application of liquid crystal display technology, active matrix drive technology is based on thin film transistor (TFT) technology and is mostly used in notebook computers and animation and image processing products. The pure matrix drive technology is currently dominated by twisted nematic (TN) and super twisted nematic (STN). Current applications are mostly in word processors and consumer products. Among them, TFT LCD displays require higher capital investment and technical requirements, while TN and STN require relatively lower technical and financial requirements.
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