It seems like Universial Display (UDC) and Samsung Display has fixed the OLED-Tv architecture problems.
At the SID-2014 Dr. Hack from UDC informed the people about a new AMOLED display architecture!
This features a new colour-tunable W-OLED lighting panel, and better methods to make single-layer encapsulation technology more efficient. With this new technology UDC and Samsung Display can reach a improvement in the lifetime of an OLED Display by as much as 8 times! The architecture enhance blue lifetime, thus significantly reducing image retentation and sticking. With this new technology the companies reach also the goal to improve the manufacturability of OLED-Tv panels. And it is also possible to produce higher resolution panels 4K!
The Power consumption can be also reduced.
With that new architecture Samsung Display can be produce larger OLED-Television panels with a higher resolution easier and can compete with LG-Display in the near future. The new architecture using just two low resolution masking steps. Samsung Displays use true RGB sidy by side OLED production technology which are using three high resolution patterning steps.
LG Display uses WRGB OLED Architecture which is much easier to produce, that is the reason why LG-Display can drop the price of large OLED-Tvs month per month. With the True RGB Pixel technology Samsung Display can not compete in that case. But with their new architecture Samsung Display can compete with LG and we will see more OLED-Television products from Samsung in the near future. For that reason Samsung Display stopped the producing of their 55 inch device because it make no sense.