LG releases world's biggest ultra-definition TV

  • LG Electronics has released what it describes as the world's biggest ultra-definition (UD) TV.

    With an 84-inch 4K screen, LG offers 8 million pixels per frame, four times the resolution of 1080p high-definition displays.

    The firm is set to push the technology as a key marketing tool to challenge market leader Samsung.

    Rival Toshiba already offers a smaller 55-inch 4K screen while Panasonic has a 20-inch model. Sony and Samsung are also developing their own products.

    However, LG's $22,010 price tag is likely to deter many from investing in the technology just yet

    LG is the second-largest seller of flatscreen television screens, and has gained a reputation for competing with its domestic rival, Samsung, over bragging rights.