Nearly 957,000 units were sold across Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam, a 15 percent jump compared to the average sales volume in February-April, global market research firm GfK said.

"It is interesting to highlight that this trend of higher demand for TVs in the month leading to (the) World Cup was also observed four years ago," said Gerard Tan, account director for digital world at GfK.

"Events such as the World Cup has created more awareness for larger screen sizes and more advanced models, which will help drive the market in 2014."

TV sales in Thailand showed the sharpest increase, followed by Vietnam and Singapore, according to GfK.

Although no country in Southeast Asia has qualified for the World Cup, football has a strong following in most of the region of more than 600 million people.

The World Cup, which is held every four years, began in Brazil on June 12, with the final match to be played between Germany and Argentina on July 13.