Lines behind the display in my tab a7 2020

[Harikichu]

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.

[ßoss23]

try casting your screen to other device and if you can still see the lines on the other screen it's some software issue but if you cannot see the lines on the other device it's a hardware issue and cannot be fixed via software
it is recommended to go to a nearby Samsung dealer or official Samsung outlet

[Harikichu]

Hi, thanks for the reply but these lines are not visible when I took a screenshot and viewed on other devices. I believe Iam the only user with the issue. I will visit the samsung service center once the lock down in finished.

Attaching a screenshot for your reference.

[MohammedKhatri]

Is it the galaxy tab A7 and if yes is it the wifi or lte one

[Harikichu]

Yes. LTE Indian version 

[MohammedKhatri]

is this problem fixed now?

[MohammedKhatri]

Are these screenshots?

[Harikichu]

Yes. Those images with the default wallpaper is the screen shot and those Grey screen image is the actual picture of the display 

[cs_member8]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[MohammedKhatri]

Did you recieve Android 11, I live in India, waiting for android 11 eagerly on my galaxy tab A7