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Samsung’s Infinity-O OLED Displays and Light Emitting Suppliers
November 26, 2018
 
Etnews reported that Samsung Display would utilize their Hole design on the Galaxy S10 in 2019. The design is called HIAA (Hole in Active Area) structure, which is used for a >95% screen/body ratio and eliminated the need for a notch. This display will be produced on Samsung’s A3 Gen fab. Samsung has modified SFA and Philoptic’s laser tools for the HIAA structure in October at no increase in capex. SDC uses the Infinity-O name for the HIAA structure. After the laser tool creates the hole, the organic material is evaporated and encapsulated. The hole must be positioned to minimize the non-display area. Samsung Electronics and Samsung Display have trade marked the Infinity-O OLED, as a way to differentiate their product from their competitors. 
As we reported previous week, Duksan Neolux and Samsung SDI supply organic material to Samsung Display.  According to the Korean news sources, Galaxy S10 will upgrade the organic stack from the M8 configuration used in the Galaxy S9 displays to the M9 stack.
 
  • Red    -- Host DOW, Dopant UDC, Buffer Duksan Neolux
  • Green  -- Host NSSC, SDI, Dopant UDC, Buffer Merck
  • Blue    -- Host SFC, Dopant IK, Buffer IK
 
Previously, Duksan Neolux supplied red host for M8 product; however, this time supplier is DOW.  In case of blue host, the blue host supplier has shifted from Idemitsu Kosan to SFC, but SFC provided the dopant.  For green host, NSSC was a sole vendor for M8; for M9 NSSC and Samsung SDI will be dual suppliers for green host; Samsung SDI is still waiting to receive vendor permission in sometime in 2019 from SDC.  

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