Samsung Electronics Co Ltd reported its second straight fall in quarterly profit on Tuesday, as weakness in flat-screen panels and the maturing high-end smartphone business weighed on the South Korean giants earnings. But the company said the football World Cup in Brazil should help boost sales of screens and smartphones in the current quarter, as fans invest in fancy gadgets to watch the action. The worlds biggest smartphone maker is also banking on its flagship Galaxy S5 handset, launched in April, to outsell its predecessor and widen profit margins, a senior executive told Reuters earlier. Samsung is expected to see profits rally in the second quarter and beyond, on the back of improved sales of display panels and home appliances, Samsung said in a statement.