UHD vs. 4K: A Distinction with a Difference?

Author:
Publish date:

The people at Redshark explain the difference between 4K and UHD and the reasons they refer to both as "4K" despite the small differences in resolution and aspect ratio. 

"Most consumers probably don’t realise that there are two different resolutions that could reasonably be described as 4K," they write. "There’s 3840 x 2160, which we’re supposed to call “UHD”, and there’s 4096 x 2160, which is the resolution described by the DCI standard for digital cinema. DCI 4K is slightly wider than UHD, but not much. But it’s different enough that if you try to show UHD 4K on a DCI 4K screen you’ll get a vertical black bar at each side of the display, and if you scale DCI 4K to fit on a UHD 4K screen, you’ll have black bars at the top and bottom. 

"We (RedShark, that is) have always described both cinematic DCI 4K (4096 x 2160) and UHD (3840 x 2160) as 4K. We do this for two reasons. First, they are very close. You would have to be very pedantic to say that you can see a difference in quality between them - especially when some people still say you can’t notice the difference between HD and 4K! Second, because we are not alone in this. Most TV manufacturers - and camera makers too - describe UHD as 4K. We just see them as two types of 4K."

The piece parses the similarities and differences further and sums up saying the term "'UHD' which we think was never the most helpful way to describe a 4K television."

Related

BlackBox-Radian

Black Box Radian Flex Software-Based Video Wall Platform Earns ISE Best of Show Award

Black Box, an industry-leading provider of pro AV connectivity and signal distribution systems, today announced that the company's Radian Flex software-based video wall platform won an ISE Best of Show Award from AV Technology Europe, a Future Publishing magazine. Of the more than 1,000 exhibitors at ISE 2019, only 15 — including Black Box with Radian Flex — earned this award, which recognizes achievements and innovations in product and service development.

Luxul_XMS-1208P

Luxul to Bring Reliability and High Performance to IBS 2019 With Latest Networking Solutions for the Smart Home

Luxul, the leading innovator of IP networking solutions for AV integrators, today announced its technology line-up for the NAHB International Builders' Show (IBS), taking place February 19-21 in Las Vegas. In the Legrand booth SU614, the company will exhibit a wide range of solutions for home builders that deliver reliable, high-performance networks in smart homes, including Gigabit switches; the next generation of wireless controller technology; indoor and outdoor wireless access points (APs); wired and wireless routers; intelligent network power distribution units (PDU); and the Wi-Fi Assurance Program exclusively for builders.

HoverCam_Pilot3

HoverCam's Pilot Series and ClassFusion Learning Platform Land Big Wins at TCEA 2019

HoverCam, a leader in innovative, interactive, and engaging education solutions, announced that the company's digital classroom solutions received three major honors from Tech & Learning at the recent Texas Computer Education Association (TCEA) 2019 Conference in San Antonio. At the show, HoverCam's Pilot 3 digital teaching station received the Award of Excellence in the District category, while the company's new Pilot X podium and ClassFusion software platform both earned Best of Show honors. The awards were presented on Feb. 6 at a special ceremony held at Casa Rio restaurant in San Antonio.