Chosen Solution
LG tv 55UG870T damaged screen can it be replaced with the screen from 55UJ634T model.
Since screen replacements are not usually worth the repair cost, little information is available publicly about them. From the nature of your question, I surmise that you have both TVs with different problems. If this is the case, the best way to make this determination is to open up both TVs and look at the model numbers of the panels themselves. You can also check to see what the connectors and cables look like. While interchanging panels is rare, you may get lucky. If you have questions, post pictures of both panels (from the back to show any identifying numbers). Dan
