Market research from Korea has estimated that white (W)OLED will become the market staple for large screen televisions by the end of the decade in a booming market set to reach $31 billion (€23 billion).
This will be a fillip to LG which already uses WOLED in its first generation OLED televisions launched in 2013. This technology works by using compressed layers of red green and blue OLEDs faced with colour filters. Its main competitor Samsung's first models use RGB OLEDs with separate sub-pixels for each of the primary colours.
LG argues that this gives its products lower failure rates, clearer performance in brightly lit conditions and makes it easier to produce. The authors of the 2014 White OLED Display Annual Report from UBI Research describe how while RGB substrates droop when printed at larger sizes, LG has been to push forward with WOLED production sheets up to Gen 8 size (2,200mm x 2,500mm).
These advantages are likely to inform a wider industry shift to WOLED rather than RGB OLED screens. Now worth only $745 million worldwide, WOLED displays will surge to $17 billion in 2018 and $31 billion by 2020. The spinoff market for related equipment markets will be created as this pushes forward.
Further evidence that LG is winning the battle of OLED display technologies emerged in February as the company announced it was cutting the price of its 55 inch (1,400mm) screens by 50%. Meanwhile Samsung is reported to have followed the example of Japanese television makers Sony and Panasonic in reorienting its research towards ultra-high-definition TV (UHD-TV) instead.
As the OLED TV market matures between 2018 and 2020 there will be a shift towards larger units. Over this period the value of 65 inch (1,650mm) screens sold will rise more than 5-fold to become roughly a third of a market threating the long-term dominance of 55 inch models.
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