The invention discloses a display screen laminating method based on PUR
hot melt glue, which comprises the following steps: step A, pretreating the surface of a display screen back plate to improve the
adhesive force, melting the PUR
hot melt glue at the temperature of 110-130 DEG C, and adjusting the glue amount in real time by dispensing equipment based on CCD (
Charge Coupled Device) feedback to apply glue; b, under the condition that the environment
humidity is controlled to be 40%-70% RH, the display screen and the back plate are laminated, glue
viscosity is detected and then fed back, and the pressure during lamination is dynamically adjusted according to the fed-back
viscosity value; c, the
adhesive layer is cured through segmentation treatment; based on CCD feedback, the glue amount is adjusted in real time, it is guaranteed that glue lines are uniform and free of black spots, screens of different sizes can be bonded conveniently, segmented curing is adopted, shrinkage
stress concentration is reduced, the bonding effect is improved, the temperature and
humidity are controlled within the proper range, the
bonding strength is effectively guaranteed under the condition that the curing speed is guaranteed, and the product quality is improved. And the bonding firmness of the
glue line and the treated base material is good.