My DS Lite screen edges are now starting to fade
My DS Lite screen hasn't been used for maybe 3 years because I lost the charger and I just recently bought one. Now, its fully charged but the screen (both the top and bottom) now has like weird stains and it makes the edges turn white when I turn it on (refer to attached photos for reference). Help. How do I fix it? DO I clean it? If not, where can I get it fixed? Where do I buy a new screen? Help!!