4K Projector
4K is suitable for Large venue, Medium sized venue and Small venue.
4K Projector have 4 times the resolution of Full Hd projector. It has much higher resolution and picture quality. If it's used in business application, e.g Excel Spreadsheet, viewer can see a bigger desktop, and hence a bigger spreadsheet more cells.
Did you know movie director put a lot of effort to put a lot of details of every shot of the movie? Only with 4k projector you can watch the picture as intended by the movie director. You can see all the little detail in a scene.