Once The two substrates are bonded, both an ultraviolet (UV) beam is directed, or warmth or maybe a strain is partly utilized the sealant amongst the 1st and 2nd substrates 510 and 520, for setting the sealant to repair the primary and second substrates 510 and 520 (action 5S in https://jiutustore.com/collections/optical-bonding-machine/Optical-Bonding-Machine