First of all, the value after p is the distance between two pixel points or lamps (in mm), so their point distance is 3mm and 4 mm. In the same area, P3 has more points and P4 has fewer points. For example, within the area of 1, P3 has about1111/pixel, while P4 has only 62,500 pixels. The smaller the spacing, the higher the pixels and the clearer the picture. Therefore, P3 has a clearer display effect than P4. The smaller the dot spacing, the more difficult it will be to make. The more pixels per square, the higher the cost and the higher the price, so P3 is more expensive than P4, but this does not mean that P4 is not good, because the larger the dot spacing on the screen, the farther it is suitable for viewing. Generally, there is a formula, and the optimal viewing distance = point spacing /(0.3~0.8), which is an approximate range. According to this formula, the appropriate viewing distance of P4 is 5- 13m, and the viewing effect will be very good in this range, which is enough to meet the daily actual display effect. Of course, if P3 is adopted, the effect will be good, but the cost will be higher. It is worth noting that when choosing a suitable display screen, comprehensive factors such as viewing distance, screen area and price must be considered. Here, it is suggested to choose the one that can meet the daily practical display application, and the most suitable one is the best. The above is the difference between the led display p3 and p4.

So P3 will be more expensive than P4.