Samsung Electronics saw its share in the ultra high-definition (UHD) TV market in North America sit at 53.5 percent as of end-May in terms of sales, according to data from market researcher NPD. Another market researcher, GfK, puts Samsung's share in Europe at 50 percent. 

Samsung's market dominance in the premium TV market, where competition is heating up especially in North America and Europe, comes from brisk sales of its recently launched quantum dot TV, also dubbed the SUHD TV, market observers said.

Samsung has been at the forefront of quantum dot TV production, with an aim to take the lead in the new display technology against global rivals.

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