For ~$50 you can find digital “microscopes” on Amazon that save images to SD cards. Here’s an iPhone OLED screen displaying the letter “T”.
All the colors you see on your phone, computer, TV, etc. are just some additive combo of red, green, and blue. In the manufacturing process of these newer “diamond” layouts you’ll find that the green sub-pixels are physically smaller – this is because our eyes pick up green the best (it’s in the middle of the visible electromagnetic spectrum). ROYGBIV 4lyfe. 