What is COG workmanship 12864 LCD Display? What is the advantages and disadvantages?

- Sep 09, 2020-

LCD12864 LCD screen is a relatively conventional LCD screen, and it is also a more widely used one. In recent years, most of the old 12864 LCD screens have been replaced with COG technology. The specific COG technology 12864 dot matrix LCD screen is compared to the previous one. What are the advantages and disadvantages of the COG process?


LCD12864 is a graphic dot matrix liquid crystal display, which is mainly composed of a row driver/column driver and a 128×64 full dot matrix liquid crystal display. Graphic display can be completed, 8×4 (16×16 dot matrix) Chinese characters or 16×4 (8×16 dot matrix) ASCII codes can also be displayed. Divided into two kinds with font library and without font library. LCD without font library needs to provide font library by itself, which is more flexible in design. The LCD with font library provides font library fonts, but it can only display the Times New Roman of GB2312. Each has its advantages and disadvantages, which can be flexibly selected according to different application scenarios. The schematic diagram of the LCD module is as follows:

The advantages of the COG process: 1. Low power consumption, 2. The volume can be smaller, 3. The shock resistance is good, 4. The price is cheap.


Disadvantages of COG process: 1. High minimum quantitative requirements, 2. Relatively weak anti-interference.


In summary, the advantages and disadvantages of the 12864 LCD screen COG process.