Sonytek Display Co., Limited

LCM LCD Module Type Display Principle Details

Time：2024-01-12

Distinguish according to the display content of the LCM liquid crystal module:
LCM liquid crystal display modules can be divided into three types of LCM liquid crystal modules: pen segment type, character type and graphic dot matrix type.

1. The pen segment type LCD module mainly displays the numbers 8 and fixed icons of seven pen segments.
Advantages: The LCD control driver is connected to the MCU interface, the process is simple, and the price is low. It is widely used in household appliances such as temperature and humidity meters, electronic scales, multimeters, smart meters, air conditioners, microwave ovens, and rice cookers.
Disadvantages: less display content.

2. The character LCD module mainly displays Arabic numerals, English letters and ASCII Western characters.
Advantages: The LCD control driver used has an ASCII Western character dot matrix generator. The microcontroller only needs to send the ASCII character code to display the corresponding characters on the LCD. The price is moderate, especially suitable for Latin alphabet language display. Widely used in various industrial control equipment, communication equipment systems, environmental protection series, financial series, etc.
Disadvantages: It can only display ASCII characters, is not flexible, and is difficult to display large-area characters.

3. Graphic dot matrix LCD module mainly displays graphic dot matrix.
Advantages: Full graphics dot matrix operation, customized icons, drawing operations and other powerful display functions can be realized by operating the LCD module through a single-chip microcomputer, and are widely used in monitoring equipment and testing equipment.
Disadvantages: connected to the microcontroller, the interface is complex, and the price is relatively expensive.

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