User’s dilemma: Case
Sedimentation or separation of phosphor affects quality
We supply backlight white-LED devices to LCD manufacturers.
In the manufacture of LED devices, we used to manually mix low-viscosity silicone resin, which is used as sealant, and phosphor, and then remove foam in the liquid by placing it in a vacuum chamber.
However, after we started to use phosphor with large particle size, the sedimentation or separation of phosphor occurred, adversely affecting product quality. Therefore, we needed to quickly come up with measures for maintaining and improving product quality.