lines going across my screen when switched off

i seem to have lines all over my tv screen u can see them better when the tv is off and sometimes slightly when switched on.. makes no difference if i clean my tv screen still there tv is only 2 years old iv no idea what this is

Update (10/13/2020)

heres a pic

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tezswann verify thst your TV is a LG 60LM6450 60inch LED Television. Post some good pictures of what your are looking at with your QUESTION. We need to see those lines to get an idea about what is going on. 在已经存在的问题里加入图片

It does sound like something may have cracked.......

完成的

hi thanks iv added a pic

完成的

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