LCD is the abbreviation of Liquid Crystal Display, after translation, it is LCD screen.
LCM is an abbreviation of LCD module, which translates to LCD module.
The difference between the LCD module and the LCD screen is that the LCD screen is a component of the LCD module. The LCD module refers to the peripheral circuits such as the LCD screen, connectors, control and drive, PCB circuit board, backlight, structural parts, etc. A component that is assembled together.
Liquid crystal modules usually refer to small-size LCD screens. Large-size LCD screens with control are usually not called LCD modules, but are called display screens or LCD screens.
Type of LCD module
Liquid crystal modules are divided according to the type of process, which can be mainly divided into two types: COB (Chip On Board) liquid crystal modules and COG (chip on glass) liquid crystal modules. More depending on the backlight type, backlight color, LCD type, etc., you can directly contact customer service.
In fact, there is a more important classification method for liquid crystal modules: according to the content and method of their display, they can be divided into character LCD modules, graphic dot matrix LCD modules and pen-segment LCD modules. For details, please contact customer service.
LCD screen type
OLED LCD screen, TN LCD screen, STN LCD screen, TFT LCD screen, TFD LCD screen are the five most common types of LCD screens. For details, please refer to: LCD screen classification and its technical characteristics
Conceptual perspective: LCD is a liquid crystal display, and LCM is a liquid crystal module;
Industry perspective: LCD is a relatively large concept, a synonym for the liquid crystal display industry, while LCM cannot be used as a synonym for LCD screens; product perspective: LCD represents the front-end product or process, while LCM represents The latter is the back-end product or process. LCD refers specifically to the LCD screen (the LCD Panel part is Cell), and the LCM is a combination of the following modules:
LCDPanel+ACF+Driver lC+PCB+FPC+B/L Module + iron frame.
Production angle: For small and medium-sized LCD screens, LCD manufacturers mainly make LCD screens, while LCM manufacturers buy the former LCD screen glass and combine them into other modules to become modules. One LCD can supply multiple LCMs. LCD screens, LCM manufacturers can also purchase screens from several LCD manufacturers: for large-size LCD screens (such as LCDTV), LCD manufacturers basically sell their own modules, and TV manufacturers buy modules. , Can be directly made into a TV.
