Generally speaking, LCDs have an optimal viewing direction. This direction is called the viewing angle direction of the LCD. For the sake of intuition, a clock dial is introduced to define the LCD viewing angle. From which viewing angle direction the LCD is most clearly observed, this direction is the viewing angle direction of the LCD. As shown in the figure below, the LCD is most clearly observed from the 4:30 direction, and the viewing angle of the LCD is 4:30. Common viewing angles are 6:00 (looking down), 12:00 (looking up), 9:00 (looking left), and 3:00 (looking right). Customers can also choose according to their needs.