No image displayed, some light is present

I am not sure if this makes sense or not. No image is display , but light is present. I am not sure if this is backlight. I have never opened it up.

This or may not be relevant, but this ipad mini 3 hasn't been used in a while.

Is it a possible a reseat of LCD is needed?

Troubleshooting

1.) I held the home button + power while connected to PC. I updated IOS first. The apple logo was never visible.

2.) Repeated same process except did a restore/factory reset while connected to PC. Apple logo was never visible.

*Once done PC / itunes detects it as new device.

Thanks in advance for your help.