Answer:
You can install 2 or more films side by side, but between two films, you need to leave at least 1mm distance. Because 2 films cannot touch each other, otherwise, it may lead to a short circuit at the edge, then burn the film edge, and lead to the whole piece of PDLC film not working.
So in such a case, if you see closely to the joint area, you will see a line there.
