1, P3: P3 pixel spacing is 3mm, and there are111pixels per square meter.

2.P4: P4 pixel spacing is 4 mm, and there are 62,500 pixels in one square meter.

Second, the modules are different.

1, P3: module resolution: 32 pixels (width) × 16 pixels (height), module size: 96 mm (width) ×48 mm (height).

2.P4: module size: 256* 128mm pixels; 64X32=2048 points.

Third, the application scenarios are different.

1, P3: It belongs to the high-end LED display product series, and is used for releasing video advertisements, playing high-definition video movies, television and other occasions.

2.P4: It is a mid-range LED product, which is mostly used for outdoor advertising.

Baidu Encyclopedia -P3 full-color display screen

Baidu encyclopedia -led display screen