Chosen Solution
Hi, Ifixit community! I’ll tell you my whole story hopefully, some experts give me some solutions I have a late 2013 15inch MacBook pro with Nvidia graphics one of the days I opened it and notice a pink spot on the screen :( This pink spot only appears in dark/black areas. In white areas, it doesn’t appear I’ve reset the SMC/PRAM and the problem is still persistsI’ve factory reset the MacBook and still persistsI downloaded a software called gfxCardStatus to change between IG/DG and the problem still persistsI plugged the MacBook with second monitor via HDMI and the pink spot doesn’t appear in the second monitorI tried some website solution like jscreenfix website and youtube stuck pixel fix video Finally, I tried some remedies like pressure on the screen with a pen covered with a soft towel, heat and pressure with a hairdryer and seems like this pink spot won’t go away. Some people told me it is a screen defect and you need to replace the entire screen, and as you know the screen is a little bit pricey and I really love “DIY” and fix everything myself. So please, could some screen experts explain why this issue happened to the screen? From the display cableLCD panel its selfThe defusion sheets behind the LCD panelThe screen controller board Is the issue from one of the above? There’s a lot of cheap cracked screens on eBay, I could purchase one and take some part it and fix my own screen?
No, your LCD display its self is not the issue! A pink spot like this one is a noise issue as the dot pattern with it tells us the signal is bad Vs the LCD its self. Now to confuse you! While I stated the issue was not the LCD its self, there’s more inside the display assembly than a simple LCD panel! There is a small logic board (T-CON) which holds logic to send the needed signal to the LCD so the given row and column receive the signal to create the image you see. This same board also converts the data signal coming from the main logic board through the cable from it. This connection is called eDP (iDP).
You might have caused this with your cleaning! I often see this kind of damage from people who spray their screens with a cleaner and then wipe it down. What happens is the cleaner drips to the bottom wetting the T-CON board and over time the buildup of cleaner corrodes the logic board and its connections. Sadly, while I’ve saved a few most of the time I have also needed to replace the display on many. I’ll worn you this isn’t an easy screen to take apart to even get to the T-CON board to try to save it or getting a good LCD panel is not easy as they are fragile. I often just replace the full assembly as its just easier. MacBook Pro Retina Display Teardown MacBook Pro 15" Retina Display Late 2013 Display Assembly Replacement
I think you need to replace the entier display.
