OLED is fundamentally a better idea than LCD because the pixel generates the light rather than blocking it. This means they are capable of displaying true black and any accurate picture is built from this foundation. The only downside is OLED's are not currently capable of quite the same peak brightness as LCD based technology, so not the best choice in very bright rooms, but for most situations this isn't an issue. The only company actually making OLED panels is LG but various manufacturers including Sony and Panasonic use them and differentiate themselves by how well they get the panel to work using their own video processor technology.
FLD, I'm no electronics engineer (not enough hammer usage for me 😁), but given the fault symptoms for £25 this t-con board has got to be worth a punt https://www.ebay.co....tm/184438479120
If your TV is anything like mine be prepared to grit your teeth as you prize the back off - it constantly felt like I was about to break something, bit like pulling trim off my old Fiat 🙂
And if that doesn't work and the budgets there buy a 48" Sony OLED from your friendly local independent retailer 😉 (not me, haven't done that for over 10 years)👍.
Edited by TheHood, 24 September 2020 - 07:32 PM.