4K TV

Representative pixel resolutions
There’s a new TV format looming on the horizon. It’s called 4K TV. You may have seen a commercial for a Sony 4K TV last night, as I did while in the middle of composing this post.
4K, you say. What the heck is that?
Well, in this case it refers to video resolution. More precisely, it refers to the vertical resolution — not the horizontal resolutions that are more commonly used, such as 1080p (1920 pixels x 1080 pixels) for high-definition video. 1080p tells us that there are 1,080 lines of resolution stacked one atop the other like pancakes. The “p” means that the lines are displayed “progressively” from top to bottom, unlike on old-school CRT screens, which display every other line.
In contrast, the 4K resolutions are approximately 4,000 lines of vertical resolution stacked side-by-side like books on a shelf. This is four times the resolution of current high-definition video.Read full post...