This is even true when you buy laptops or PC monitors. But what do they really mean? What are 2K and 4K? Is there any difference between qHD and QHD? Is 1080p 1K? If you’re a consumer looking for a new TV, you’d be forgiven for being confused. From 6-inch smartphones to 55-inch (or even bigger) TV screens, these terms and random numbers are everywhere. You hear these terms a lot these days regarding anything that has a digital display.