Amazon Fire HD 8 Broken LCD

I have an Amazon Fire HD 8” 7th Generation that has been dropped a few times and has a small crack on the corner of the screen. It has continued to work fine up until today when I turned it on and the screen lit up with colorful cracks and lines. The touch screen works fine and even launched Alexa when I accidentally clicked on it, but you can’t make out any of the images or icons because the pixels are completely distorted.

Do I need to replace the screen or the LCD panel? Where can I find replacement parts for my device?

Please help me!