Dear Samsung Member,
Greetings from Samsung Customer Support!
Please be assured and to resolve "display issue" kindly follow the given below steps:
1) Check device in safe mode: Press and hold the Power key, when Power off icon appears >Press and hold the power off icon.
Exit safe mode: Hold the power button and select restart on the device.
2) Reset the device: settings >General Management > Tap on Reset.
Note: Before reset make sure to have back up of the data via Smart Switch Mobile App
(Install Smart Switch App > Open > Click on Memory Card Icon >Back Up option > Choose the data for Back up > Back Up).
If the issue still persist, we request you kindly visit the service center as your device needs physical inspection. To check for the nearest Samsung service center kindly click on the link : https://www.samsung.com/in/support/service-center/
Thank you for writing to Samsung.
Samsung Customer Support