Chosen Solution
Vertical and horizontal “crack” looking lines with no cracks on the external screen
creedrowan most likely a “cracked “ LED screen. Post some pictures of the screen with your question so that we can see what you see. use this guide Adding images to an existing question for that. It is entirely possible that the Glass is still okay but the LCD layers is cracked.
LCD displays have multiple layers to them. One of the pieces of the LCD may have been damaged.