laptop screen flickering with weird colours when plugged in

Baker

Albicelestes
Guys.... its a 4 yr old lenovo laptop and i replaced LCD screen 2 years back.....

problem : 2 months back all of sudden 2 lines came on lcd display , but i thought of move with this issue since it is not causing much problem. but for last 3 weeks screen starts flickering and most importantly if i removed the charger 99% of flickering is reduced....


so guys what can be the problem... , and what should i do......
 
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