How to classify monochrome LCD screens? What is the working principle of monochrome LCD screens? part two

A. There are many categories of monochrome LCD screens, as follows:

1. Classify based on the content displayed: segment code LCD screen, graphic dot matrix LCD screen (with Chinese font library and without Chinese font library respectively), character LCD screen

2. Classification from the perspective of technology: segment code LCD screen, COB LCD screen, COG LCD screen, TAB LCD screen

3. Classify according to the background of its display: yellow-green LCD screen, blue film LCD screen, gray film LCD screen

4. Classified from the materials used: VA (BTN), TN, HTN, STN, FSTN. All materials for segment LCD screens can be used. Dot matrix LCD screens use STN more often, while others are relatively less used.

5. In addition to those with Chinese fonts and those without Chinese fonts, dot matrix screens can also be distinguished by dot matrix, such as: 12232, 12832, 12864, 19264, 160128, 160160, 24064, 240120, 320240, etc., the ones we use most often are 12232, 12864, 24064, and 320240.

6. It can also be distinguished from the operating temperature, which is divided into normal temperature (-20~70 degrees), wide temperature (lower than -20 or higher than 70 degrees), and classified from the viewing angle, 6 o'clock viewing angle, 12 o'clock viewing angle. Look at the display screen from the 6 o'clock direction of the clock or the 12 o'clock direction.