What
is moiré effect and how to eliminate it
Moiré effect is a visual perception that
occurs when viewing a set of lines or dots that is superimposed on another set
of lines or dots, where the sets differ in relative size, angle, or spacing.
The moiré effect can be seen when looking through ordinary window screens at
another screen or background.
The moiré can be reduced by moving the camera
left and right or up and down to change the angles between camera and LED
display. Change the focus. Excessively sharp focus on detail of image will lead
to moiré. But a slight adjustment in focus can change the sharpness, which in
turn helps eliminate moiré.
Moiré effect is the physical limit of led displays, so far there is no way to eliminate moiré effect completely, but there are methods to minimize its impact:
1. including adjusting camera distance and angle
2. adding on optical treatment film
3. glue to the surface of the led display
4. removing module masks
these measures can help but there is no guarantee of complete moiré elimination