UHD Alliance announces specs for UHD TV

Ultra HD Premium logo
Neal Romanek
Delivery
January 8th 2016 at 10:35AM : By Neal Romanek

The industry organisation also outlines specs for High Dynamic Range commercial displays

The UHD Alliance, the intra-industry group charged with standardising an Ultra HD ecosystem, has released specifications for consumer UHD, along with a logo identifying devices capable of displaying Ultra HD content. The organisation estimates that the Ultra HD market is expected to grow eightfold by 2019.

"Key characteristics of a robust next generation experience should offer 4K resolution as well as a mix of other features that include high dynamic range, wide color gamut, high frame rate and immersive audio, among other features," the Alliance said.

If you've already bought a 4K TV, are you still allowed to call it UHD? If you want to. But here are the Alliance's official UHD tech specs:

The UHD Alliance has developed three specifications to support the next-generation premium home entertainment experience. The three specifications cover the entertainment ecosystem in the following categories:

  • Devices (currently, television displays, with other devices under consideration)
  • Distribution
  • Content

A high level overview of each technical specification can be found below. Please join the UHD Alliance for full access to all technical and test specifications.

Devices

The UHD Alliance supports various display technologies and consequently, have defined combinations of parameters to ensure a premium experience across a wide range of devices. In order to receive the UHD Alliance Premium Logo, the device must meet or exceed the following specifications:

  • Image Resolution: 3840×2160
  • Color Bit Depth: 10-bit signal
  • Color Palette (Wide Color Gamut)
  • Signal Input: BT.2020 color representation
  • Display Reproduction: More than 90% of P3 colors
  • High Dynamic Range
  • SMPTE ST2084 EOTF
  • A combination of peak brightness and black level EITHER more than 1000 nits peak brightness and less than 0.05 nits black level OR more than 540 nits peak brightness and less than 0.0005 nits black level

Distribution

Any distribution channel delivering the UHD Alliance content must support

  • Image Resolution: 3840×2160
  • Color Bit Depth: Minimum 10-bit signal
  • Color: BT.2020 color representation
  • High Dynamic Range: SMPTE ST2084 EOTF

Content Master

  • The UHD Alliance Content Master must meet the following requirements:
  • Image Resolution: 3840×2160
  • Color Bit Depth: Minimum 10-bit signal
  • Color: BT.2020 color representation
  • High Dynamic Range: SMPTE ST2084 EOTF

The UHD Alliance recommends the following mastering display specifications:

  • Display Reproduction: Minimum 100% of P3 colors
  • Peak Brightness: More than 1000 nits
  • Black Level: Less than 0.03 nits

UHDA Member Companies

Company -  Membership Level

The DIRECTV Group, Inc. - Board Member Company
Dolby Laboratories, Inc. - Board Member Company
LG Electronics - Board Member Company
Netflix, Inc. - Board Member Company
Panasonic Corporation - Board Member Company
Samsung Electronics Corporation - Board Member Company
Sony Corporation - Board Member Company
Technicolor - Board Member Company
The Walt Disney Studios - Board Member Company
Twentieth Century Fox - Board Member Company
Universal Pictures - Board Member Company
Warner Bros. Entertainment Inc. - Board Member Company

Amazon.com - Contributor
ARRI, Inc. - Contributor
Dreamworks - Contributor
DTS - Contributor
Fraunhofer Gesellschaft - Contributor
Hisense - Contributor
HiSilicon Technologies - Contributor
Intel Corporation Contributor
Koninklijke Philips N.V. - Contributor
MStar Semiconductor, Inc. - Contributor
Nanosys Inc. - Contributor
Novatek - Contributor
NVIDIA - Contributor
Orange - Contributor
Realtek Semiconductor Corp. - Contributor
Rogers Communications - Contributor
Sharp Corporation - Contributor
Shenzhen TCL New Technology Co., Ltd. - Contributor
Sky UK Ltd - Contributor
THX Ltd - Contributor
Toshiba Lifestyle Products & Services Corporation - Contributor
TP Vision Europe B.V. - Contributor