Black ink blot/ spot iPhone 11 Pro Max

Hi, my iPhone 11 Pro Max is 3 months old, I haven’t dropped it, I was at work on Friday and when I checked my phone I noticed a small (maybe 2mm x 2mm) black ink like spot in top left hand side of the screen next to boarder. My phone is in perfect condition, nil cracks. What is going on? Is there any chance of this been covered by the warranty?