The viewing range, also called viewing angle, refers to the range that can be seen clearly in front of the screen. When symmetrical from top to bottom and from left to right, the angle values on both sides can be added and marked as 160 degrees horizontally and 160 degrees vertically; or as left / right ± 80 degrees and up / down ± 80 degrees respectively. The visible range is too small, and you can't see clearly beyond the range. Because the liquid crystal panel has polarized optical rotation, it can only be viewed within certain angles. However, the angle can be divided into up / down and left / right. Generally speaking, the larger the viewing angle, the wider the viewing range, even if you move the position, you do n’t have to worry about seeing clearly.