Liquid crystal display module is a kind of component that assembles liquid crystal display device, connector, integrated circuit, PCB circuit board, backlight and structural parts together. Its English name is "LCD module", which is called "LCM" for short, and its Chinese name is generally "LCD module". In fact, it is a kind of commercialized part. According to the relevant national standards of our country, only the integral parts that cannot be separated are called "modules", and the separable parts are called "components". So the standard should be called "LCD module". But for a long time, people have been used to call it "module".

LCM is called liquid crystal module in English, which refers to LCD display module, usually including LCD display driver circuit, interface circuit, etc. Often in the form of a module. It includes LCD screen, iron frame, iron frame, PCB circuit board, driving IC, control IC, backlight and a series of other products. Among them, IC packaging methods include hard packaging, cob bonding, tab packaging IC on film circuit, and COF packaging IC fixed flexible circuit board. There are also direct anti IC fixed on LCD glass called cog, etc. LCM generally also includes backlight (CCFL) and drive circuit.

Basic composition of LCM liquid crystal module

Polarizer, backlight and control board. Among them, liquid crystal is mainly composed of glass, liquid crystal and glass in two glass LCM liquid crystal modules, which do not emit light; according to the electro-optic effect, liquid crystal materials can be divided into active liquid crystal and non active liquid crystal, among which active liquid products have high transparency and controllability. The liquid crystal panel uses active liquid crystal. People can control the brightness and color of the liquid crystal panel through the related control system. According to its characteristics, it can be divided into TN, STN, HTN, estn and TFT.

TN, STN, htn.fstn are mainly used in industry, such as telephone, POS, etc.; computer, mobile phone, etc. are TFT. From the display color, it can be divided into monochrome and color; and monochrome screen can be divided into yellow green, gray white, blue and other colors.