There are some vertical lines visible behind the display and is most visible when the screen is in Grey color.
Two days ago when I opened the tab I was suddenly able to notice some strange lines behind the display, the lines are not any dead pixels it is probably in the backlight panel. The lines are seperated in equal distance and is most visible when the some colors near to Grey is on the screen it is also slightly visible all the time on other colors too. This issues suddenly developed over night and not something related to the software, I tried both soft and hard reset and the issues retains. The most interesting thing is the device was updated to android 11 two day before this line appeared. I had never dropped the device and the usage is also very less. What should I do?. Attaching some images for your reference.
