Problem with my SKODA OCTAVIA LCD display, i have not used the car for some time, today, I turned the ignition on and the screen was black with one line, i tried turning the ignition on and off , that didn't solve it. Disconnected battery also for 1hr, that didn't solve it either, no settings were lost on the car, and it just light up a steering error when I reconnected the battery, and now it got more white lines . Does anyone else have this problem and any possible solution?

Not a common problem but I remember a post some years ago with a similar display.

In that particular case the display had graphite-like contacts printed onto a rubber substrate and the contacts had dried out with age.

 

In your case it is likely that moisture is the cause. If you have climate control, try driving for a few days with aircon on together with a high temperature set on the heater.

This combination will warm up the cabin well whilst also reducing the humidity level in the car. (The handbook usually shows this as a fast method for "unsteaming" windows). Does not work below about 5C as the compressor will be inhibited. 

 

Thanks, I got a {12V/6Amp Car Battery Charger, Smart Fully Automatic Battery Charger with Pulse repair function}  online, disconnected my car battery and charged it in the house while on repair mode for 24 hrs. I put it back to the car, The display was dark at first, but it slowly got clearer over time. It helped to reset the connection and resolve the problem, some settings were lost on the car, and it just light up a steering error when I reconnected the battery. 

After disconnecting the battery, when you reconnect it will throw up the steering icon you show. The electric power steering will reset one you have driven a short distance with bends or gone lock to lock a couple of times.