I was asked to create artwork for a 4K UHD video and was only given dimensions: 4096 x 2160. This is my first time ever designing for the screen, so I apologize if this is a dumb question.
When creating a new file in Photoshop, I know I should input the exact dimensions above, but in the pixel/inch section, does it matter what number I put? Should I just work in 300 ppi as I usually do for print?
Thanks in advance!