dark section at bottom of screen

[Yazan]

This is what happen today after this thread
viewtopic.php?f=66&t=12815
The tv switched off .
And I start it again it blink alittle at the top of the lcd
Now the dark area is all the time at the top of the screen
Its the same with youtube and smart hub applications

Any help please

[Yazan]

Its not completely black.. Its darker than the lower section