Models pose with LG Electronics' new smartphone Optimus G Pro during a press conference in Seoul, South Korea, Monday, Feb. 18, 2013. LG Electronics Inc. said its Optimus G Pro smartphone with a full high-definition screen will go on sale in South Korea this week and hit shelves in Japan in April. (AP Photo/Ahn Young-joon)

Associated Press
Models pose with LG Electronics' new smartphone Optimus G Pro during a press conference in Seoul, South Korea, Monday, Feb. 18, 2013. LG Electronics Inc. said its Optimus G Pro smartphone with a full high-definition screen will go on sale in South Korea this week and hit shelves in Japan in April.  (AP Photo/Ahn Young-joon)
Models pose with LG Electronics' new smartphone Optimus G Pro during a press conference in Seoul, South Korea, Monday, Feb. 18, 2013. LG Electronics Inc. said its Optimus G Pro smartphone with a full high-definition screen will go on sale in South Korea this week and hit shelves in Japan in April. (AP Photo/Ahn Young-joon)