john this could be cable issue (check the ribbon cables as wall as the thin cables going into the panel and check for small tears etc. Most likely this is a failed panel due to bad LCD source driver IC's. That would most likely require a new panel. Take a look at the controller board and see if you find some damaged or missing component. You can always post some images of what you find with your question. Use this guide [guide|21499] for that. It will let us see what you see.