Mackbook Air M1 2020 black screen problem at certain angles

"Hi", I am Soumik. I bought a MacBook Air M1 in 2020. It has been performing well, but in the last couple of days, I have been facing a black screen problem. When the screen is at an angle 90 degrees, it appears normal, but when I open it further, the screen suddenly goes black and stops working completely. I have no idea what to do.