Samsung Electronics says sales of quantum dot light-emitting diode(QLED) televisions and ultra large-size televisions have tripled in the second quarter from a year earlier.
 
The South Korean tech giant did not provide specific figures in a a news conference outlining second quarter performance Tuesday.
 
The company says it is leading the market of 75-inch or larger TVs with a 50 percent market share.
 
Samsung says it remains optimistic about its performance in the memory chip market for the second half of the year, citing high seasonal demand. 
 
It said a plan to expand its semiconductor factory in Pyeongtaek, Gyeonggi Province is also being implemented smoothly.