1. Dot-matrix LCD screens are arrays arranged in accordance with certain rules. Graphic dot-matrix LCD modules are common. The dot matrix LCD screen is composed of many display dots (equivalent to one pixel of the display). For example, the 12864 dot matrix LCD screen has 128 dots horizontally and 64 dots vertically, making a total of 128*64 dots. By controlling these points, you can display the graphics or text you want to display, and you can display the text of various countries at will, scroll up and down, left and right on the screen, animation functions, etc. Advantages of dot matrix screen: Relative to segment screen images can be combined at will, display content can be richer, and low-pixel images are relatively not smooth.
2. Segment LCD is also called pen-segment LCD. Segment LCD refers to an LCD that can only display or not display fixed text or graphics at a fixed position on the screen. It can only be used for simple characters and numbers. Display, because the power consumption is very low, it is used to replace the LED digital tube (consisting of 7 pen segments, used to display the number 0~9), such as calculator, electronic clock, air conditioner remote control, etc., the display content is all numbers, also Simpler. The advantages of the segment code screen: relatively cheaper than the dot matrix screen, the image is smoother.
