LG, Samsung and Sharp will provide Retina displays for Apple’s iPad 3, DigiTimes reported on Tuesday. In mid-July, rumors surfaced that Apple was testing Retina displays from Samsung and LG, and those rumors were confirmed days later when LG’s CEO said Apple will use its Retina LCDs in its next-generation iPad. Apple is also reportedly considering an investment of as much as $1 billion in a new Sharp factory that will be used to provide screens for its iPhone and iPad products. LG will be the largest iPad 3 LCD supplier followed by Samsung, although DigiTimes said Sharp could soon surpass the South Korea-based company as Apple’s second largest iPad 3 panel provider. Radiant Opto-Electronics will be the largest backlight unit supplier for the screens, according to the site’s sources. The most recent reports have suggested production of the iPad 3 could begin in September with a launch expected in early 2012.