What is the difference between a MacBook Retina display and LCD screen repair? Repairing the MacBook Retina display means repairing the high-pixel-density, fused multi-layer display panels found in modern Apple laptops. Repairing the standard LCD screen means replacing traditional liquid crystal layers. Retina displays combine the front protective glass, the backlight and the LCD matrix into one ultra-thin unit. Due to this fused architecture, any damage such as vertical line