Samsung has scored a major victory in its battle for dominance of the OLED market after the US International Trade Commission (ITC) moved to block Chinese display maker BOE Technology Group from exporting key OLED products to the United States for 14 years.

The ruling, which follows a lawsuit filed by Samsung Display in October 2023, found that BOE had “misappropriated” Samsung’s trade secrets relating to low-temperature polycrystalline oxide (LTPO) OLED technology.

The ITC imposed a 14-year import ban, making it highly unlikely BOE can appeal successfully.

The decision is expected to have sweeping consequences. BOE currently supplies around 20–30 million OLED panels annually to Apple for iPhones, iPads and MacBooks, accounting for roughly 10% of the US smartphone OLED market. With BOE sidelined, Samsung — already Apple’s largest supplier — is poised to capture much of this demand, boosting profitability and potentially driving up panel prices.

“Benefits will concentrate on domestic panel makers, who already dominate LTPO OLED shipments,” said Kang Min-koo, analyst at IBK Securities.

The ruling is also a setback for Apple, which has relied on BOE as a price-pressure counterweight to Korean suppliers Samsung and LG. Without BOE, Apple’s negotiating leverage may weaken, leaving Samsung and LG freer to avoid price wars.

BOE’s troubles with Samsung aren’t new. In March, it lost a separate US patent case, and its relationship with Apple now faces renewed strain. Analysts warn BOE could face broader restrictions in doing business with US clients such as HP and Dell.

Industry watchers say the implications extend beyond smartphones. PC and monitor brands are increasingly adopting OLED displays, a shift that further strengthens Samsung’s position in high-value segments.

In Q1 2025, Samsung already controlled 49% of iPhone OLED panel shipments, compared to LG’s 28% and BOE’s 19%, according to Omdia. With BOE removed from the US market, Samsung and LG are expected to tighten their hold on Apple’s supply chain.

“If Apple halts use of BOE panels globally, the impact will be sweeping,” said Nam Sang-uk of the Korea Institute for Industrial Economics & Trade. “Samsung could secure the lead in foldable smartphone panels.” he added.

The ITC’s final decision is due in November, but the market has already shifted in Samsung’s favour with LG Display also tipped to pick up share.