Macbook Pro 2015, Screen goes green?

Hi everyone,

I have been having this problem for quite a while now. My new Macbook Pro worked great for a year. Whenever I open my Macbook from sleep or completely turnit on, there is a green tint to it. The top is green, the sides of the screen are green. However, it goes away after 15/20 minutes or so. I used a thunderbolt monitor, to see if it's a software or hardware problems and it works perfectly without any green tint.

Why does this happen? and how can i fix it? i really need help.

Thank you.