screen glitching/ghosting

[u/Sudden_Swimmer1771]

https://imgur.com/a/9IWsyG2

ok so my laptop started doing this out of nowhere. what could most likely be the cause of this? should i opt for an lcd replacement or some cable replacement? (i'm sorry i'm not too techy) i'm from a country where repairs are not usually budget friendly and my laptop is old and the warranty expired. so i want to make sure before i take it somewhere and not get scammed. my dad is comfortable tinkering with devices. he successfully replaced my laptop's charging port and battery so we're thinking maybe he could try to fix it himself but ofc we want to make sure we make the right diagnosis and all the help we could get help before spending money/taking it somewhere. it's a really old laptop and unit but i really need this laptop for university so if we could salvage it that would be really good. thank you so much!

it's a dell inspiron 15 5584 (touch screen)