screen lines black screen

hello I aim a owner of a LG stylo 2. everything is working fine the sound works too. but the screen is black. when I boot it up the lg logo does not appear. the lines start to show and I cant see anything ider then that do I need a new lcd screen or the whole screen new? ill put a link of a phone the demonstrate how mine is. thanks I hope you can help. p.s my screen is not cracked

this is a picture of an example of my phone