“Therefore, good photos must printed in a larger size”
You can never compare a photo on a backlit display with a printed photo. If you want your photographic works to make an impression, they should be printed. Large prints from a good printer at a good paper makes an impression. A printed photo can be hung anywhere on the wall. You can have multiple images side by side. But the most important thing is that the picture makes a completely different impression. If you choose a nice matte paper that Canson Rag Photographique you get an unbeatable results. Velvety deep blacks, colors that are true to life and everything without reflections.