Chosen Solution
Hello I have an issue with my macbook pro retina display. I don’t know if it was whether mechanical damage or it’s software issue but suddenly pink still pixelated horizontal appeared in the bottom of the screen. On white image it’s not visible, but on black and darker ones they become pink or purple. Does somebody know what is this and how to fix? Update (07/19/2018)
Good afternoon, this is an internal defect of the LCD, I recommend the replacement, because the LCD Pixeis will begin to die and spread until the LCD burns. Bring it into an Apple Store or Apple authorized service center. But in the hope of being software, you can reinstall Apple’s source OS X and reinstall all the updates available and update the Macbook Firmware. Thanks, Fernando Rodrigues
This appears to be an LCD failure. Given the fact the white image looks good its nothing you did. I would say the Thin Film Transistor (TFT) logic on the glass panel has a defect. This is a manufacturing defect in the screen. Bring it into an Apple Store or Apple authorized service center.
