Samsung joined in the attacks on the iPhone 4's Retina Display with a retort in the Korean media. A spokesperson for Samsung argued that quadrupling the resolution actually had little impact on clarity, at most three to five percent, and that that it would allegedly hike the battery drain by as much as 30 percent. AMOLED is purportedly better as it doesn't need a backlight and makes up for any resolution loss in other ways, such as higher contrast with true black, more accurate colors and no limits on viewing angles.