Bubble formation on display

Hello together, with my Ceed, as with many others, bubbles form on the display. Kia, since the warranty expired last year in November, would cover 70% of the costs for the spare parts. I have to take over about 600€ in own performance. Now my question: does someone have the same problems and can’t fix it. Does the bubble formation affect the function? So far, these are only on the right side of me and therefore not bad. If I use the part for 600€ can be exchanged, do I have 3 years warranty on it again?! Thank you very much!