LG Display reported a 4Q profit amid a rebound in television sales during the year-end holiday season and solid sales of screens used in Apple's devices. But concerns about slower growth for Apple products have risen, so LG Display said it expected its LCD panel shipments to decline by around 15 percent in the first quarter from the previous quarter.

The company reported 587 billion won ($550.6 million) in operating profit for the October-December quarter. Sales rose to 8.7 trillion won in the quarter, a quarterly record.

Sharp supplies around 17 percent of Apple's iPad screens while Samsung provides 12 percent, according to research firm DisplaySearch.