According to foreign technology media Patently Apple reported that in addition to LG and Sony, Samsung is also the screen supplier for Apple’s first mixed reality headset. The report says Samsung is working with APS Holdings to develop a 3500ppi FMM (fine metal mask).
Fine Metal Mask is a consumable core component of the OLED evaporation process, mainly used to deposit RGB organic material and form pixels in the OLED production process, to accurately and finely deposit organic material where needed to improve the resolution and yield of the product.
The higher the resolution and the more pixels, the finer and more delicate holes are required, with approximately 20 million holes in a metal mask, making the process very difficult.
Reports that Samsung APS Holdings is collaborating to develop a 3500PPI fine metal mask (FMM) for the manufacture of “OLED on Silicon” (OLEDoS), primarily to meet the display needs of VR / AR headsets. Samsung Display (Samsung Display) is also developing RGB OLEDoS.
Apple previously asked Samsung Display and LG Display for the initial OLEDoS requirement of 2800ppi, and later increased the resolution to 3500ppi. Samsung is likely in talks with APS Holdings for a 3500ppi FMM partnership, as this is the resolution its potential customers want.
The report that APS has developed ultra-high resolution FMM boards and masks at 4000 ppi.