And the newest, largest and most ridiculously expensive TVs have over 33 million pixels 8K. You'll have to look very closely, or whip out a magnifying glass, to discern each one. Resolution is one of the most common specifications used to sell TVs, partly because "4K" and "8K" sound really high-tech and impressive. However, resolution is not the most important ingredient in picture quality. Just because a TV has higher resolution than another, doesn't always mean it looks better. It might, but not always, and for reasons that have little to do with resolution.
A TV with better high dynamic range HDR performance, a better overall contrast ratio or better color will look better than one that just has more pixels. That said, it's still worth understanding the various resolutions used by TV makers and others. Here's a bit more, ahem, detail. One potential source of confusion is that 4K means something different whether you're talking about a TV in your home, or a projector in a theater.
Technically, "4K" means a horizontal resolution of 4, pixels. This is the resolution set forth by the Digital Cinema Initiatives. Because movies vary in aspect ratio, which refers to the exact shape of the rectangle of screen, no vertical resolution is specified. Most companies just say both: Ultra HD 4K.
This shows the relative number of pixels in each of the major resolution formats. Not actual size of course; this is a chart not a visual representation though it is to scale if you click on it. From largest to smallest: 8K tangerine , 4K Cinema in 1. If you're talking about TVs, it's twice the horizontal and vertical resolution of 4K TVs: 7,x4, This isn't a cinema resolution yet, at least not outside of the experimental stage.
There are a handful of 8K TVs on the market, but it's going to be many years before this resolution is common. To get the most out of your 4K TV, you need 4K content. Fortunately, there's 4K content everywhere. If you have a PC, many video cards from the last few years can render games at 4K, with varying degrees of success. We're starting to see the roll-out of ATSC 3. Just like the initial roll-out of HDTV at the turn of the century, it's going to be a while before 4K programming is common over the air.
Before "4K" became common, you'd almost never see "2K. It's 2, pixels wide, and again, no vertical resolution is specified by the DCI. But now that "4K" has gained traction as a term used to describe TVs and content, "2K" is becoming increasingly common as shorthand for the p resolution used by most smaller and older HDTVs, as well as Blu-ray.
Remember how we talked about digital cinema resolutions only specifying the horizontal resolution? Well TVs, on the other hand, have historically used the vertical to describe resolution going back to the glass tube days. So p is the vertical resolution. Nearly all HDTVs have an aspect ratio of 1. This process is referred to as upscaling. This also means that input signals with less than p resolution don't look as good as a true p video resolution signal because the TV has to fill in what it thinks is missing.
With moving images, this can result in unwanted artifacts such as jagged edges, color bleeding, macroblocking, and pixelation this is the case when playing those old VHS tapes. The more precise guess the TV makes, the better the image will look. The TV shouldn't have difficulty with p input signals, such as those from Blu-ray Disc and from streaming, cable, or satellite services that may offer channels in p.
TV broadcast signals are another matter. Although p is considered Full HD, it is not officially part of the structure that TV stations use when broadcasting high-definition video signals over the air. Also, 4K TV broadcasting is on the way. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile.
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Discuss these P definitions with the community: 0 Comments. Notify me of new comments via email. Cancel Report. Create a new account. Log In. Powered by CITE. Are we missing a good definition for P? Don't keep it to yourself Submit Definition. The ASL fingerspelling provided here is most commonly used for proper names of people and places; it is also used in some languages for concepts for which no sign is available at that moment. There are obviously specific signs for many words available in sign language that are more appropriate for daily usage.
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