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Solus Supplies HTL Material for LGD
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Solus Advanced Materials will supply the layers of the hole transporting layer (HTL) for OLED panels produced by LG Display at its E3 line at Paju. Solus will now likely be looking to supply the fourth and first layers of HTL to LG Displays other large-sized OLED lines - E4 at Paju and at the plant in the Guangzhou, China.
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People familiar with the matter said Solus is aiming to supply HTL to E4 and Guangzhou by 2022.  Solus began development of HTL for large OLED three years ago. In March, Solus began the construction of a new OLED material factory at Changshu. The company will be spending US$25m and the factory will begin operation in the second half of 2022. The HTL produced at this factory will be supplied to LG Display’s plant at Guangzhou.

LG Display plans to ship up to 8 million large OLED panels this year, 78% more than the 4.5 million units it shipped in 2020.

Solus will take advantage of LG Display’s expansion of its Guangzhou plant’s production capacity from 60,000 to 90,000 substrates/month. Combined with the production capacity of E3 and E4, which totals 80,000 substrates per month, LG Display will have a capacity of 170,000 substrates per month. Solus’ mainstay so far has been advanced electron transporting layer (aETL). It is used by Samsung Display for its mobile OLED panels. Solus has been the sole supplier for eight years. Solus also makes electron injection layer, cathode, and capping layer. Samsung use Neolux for its HTL layers.