Hi @michaelgoldwire
Here's the [https://dl.dell.com/content/manual32658356-latitude-3590-owner-s-manual.pdf?language=en-us|owner manual] for the laptop.
Go to p.37 in the manual, to view the procedure to remove/replace the display assembly. On p.44 it details how to remove the LCD panel from the display assembly.
Seems like there's a lot of different [https://www.parts-people.com/index.php?action=category&id=140&subid=1173&refine=lcd+screen&srsltid=AfmBOor0gLi4HvTQhe-C0V41PD3SibuN6wwtLs3DSgCJhq9fGBBX5AiJ|LCD panels] that can be used in the laptop. (examples only)
Look for the Dell part number¹ on the back of the LCD panel and then search online using the ''part number only'' to find suppliers that suit you best.
¹ The Dell part number = the SKU number shown next to the LCD panels in the link above.