in this video I share a little experience repairing the LG 42LB550A led tv which has a striped blank image. .
Positive damage is on the LCD glass panel. To get around so I don't have to change the lbb, I did the route closing trick. from tcon to the lcd glass. alhamdulillah it works.
note: for durability or whether or not I can't predict myself. I suggest that if you want it to be completely normal, you have to replace 1 set of LCD glass screen panels.