Frequently Asked Questions
Why is this logo needed?
The logo is intended to provide consumers with the confidence that devices can support the next generation of Ultra High Definition (UHD, also referred to as 4K) and High Dynamic Range (HDR) broadcast and broadband services.
UHD pictures are up to four times the clarity of existing High Definition services but HDR brings a whole new dimension with vivid, true to life colours, darker blacks and brighter whites.
How is the logo different from the other UHD logos?
Only one other logo for devices places requirements on displays to support the high contrasts and vivid colours possible with High Dynamic Range (HDR) and Wide Colour Gamut (WCG). Some of the early consumer logos only required displays to support higher pixel resolutions with 8 bits per pixel and it was clear that this was not sufficiently compelling for content providers to justify expensive new UHD production workflows. It is now clear that content providers and broadcasters will invest in UHD technology when all the benefits of UHD, HDR and WCG can be realised simultaneously as this delivers a real step change in visual quality.
In addition, other UHD logos all consider the display of UHD content from a secondary source devices over HDMI. Such an approach means that consumers can purchase a great quality display, only to find that the TV is unable to actually display UHD HDR content delivered via broadcast or via broadband (OTT). The 4K HDR Ultra HD logo aims to bridge the gap not covered by existing logos, which do not specify requirements for broadcast and broadband UHD HDR services based on open standards.
This logo is supported with a comprehensive test suite, certification and audit of devices so that consumers and the industry can have confidence in the capability of devices that carry this logo.
Read our blog here, to see a more in depth explanation for why we believe a new 4k HDR logo is needed.
What are the benefits of this logo for consumers?
The benefit for consumers is that their TV or set-top-box will display UHD HDR content whether broadcast, broadband or via HDMI, for their region, giving them confidence in terms of compatibility and quality.
What are the benefits of this logo for manufacturers and retailers?
The logo conveys in a simple way to consumers that a complex set of features and technologies will work together, for the region applicable. By giving consumers greater confidence in the future compatibility of their UHD TV or set-top-box purchase, manufacturers and retailers can make their range of UHD TVs more compelling.
Because retailers can be confident that TVs carrying the logo have been tested against a wide range of HDR content delivered over HDMI, broadband and broadcast, they know that the chance of dissatisfied consumers and returned purchases is reduced.
What are the benefits of this logo for broadcasters and operators?
By supporting this logo, they can have confidence in the broadcast and broadband UHD HDR content they produce working on a known range of compliant TVs and set-top-boxes. This can be contrasted to the situation today, where content providers, broadcasters and OTT service providers seeking to offer UHD HDR content can only determine whether TVs will correctly support the display and transmission format by trying to find detailed TV device specifications that are often not published in the publicly available documentation for the TV. Consequently, it’s extremely hard for these service providers to decide which content and transmission format should be selected in order to reach the biggest possible device footprint.
Many pay TV operators are interested in enabling HDR content. Most will be distributing to a set-top-box, not directly to a TV, and while the use of the logo might not be of interest to an operator, it still makes a lot of sense to choose an appropriate set of technical requirements that stays aligned with industry trends and is backed with a comprehensive test suite.
Who can use the logo and how is it obtained?
This logo is open to any manufacturer of devices that support the Logo Technical Requirements and have signed a Logo Licence Agreement. Devices that meet the requirements must be registered and then logo licensees may carry the logo on their device and packaging, and marketing material relating to the device. A requirement for registering a device is that it has been tested using the available test suite. This process is described in more detail in the Logo Licence Process document which you can request from here.
The logo may also be used by non-manufacturers – including retailers, news and media organisations, broadcasters and service providers – at no charge, as long as the Logo Usage Rules are adhered to. The Logo Usage Rules are available on request.
What technical requirements does a device using this logo meet?
How are the requirements tested?
Licensees are required to certify that their device meets the requirements and a test suite is available for manufacturers to license for use in their labs for development and acceptance testing. Manufacturers may also self-certify using this test suite as part of the logo registration process. Manufacturers not wishing to test the device themselves, can test it in one of our worldwide test labs.
What is in the test suite?
A full list of the tests can be obtained by contacting us. To use the test suite a modulator is required for playing out the broadcast Transport Streams to the device under test.
What if we want to use the test suite but don’t need the logo?
Device manufacturers and their suppliers can separately license the test to validate 4k and HDR support of their device, even if they do not wish to show the logo on the device. This is useful since the test suite covers many generic HDR technical requirements and we recognise their will be situations where manufacturers wish to validate the performance of their device but do not need to use the logo itself.
Which devices are currently carrying the logo?
LG, the world’s largest 4k HDR receiver manufacturer by volume, is using the logo on all LG 2017 4k TVs. MStar, the world’s largest TV semiconductor vendor, Hisense and T1-Tek are also supporting the logo. Please click here to see LG’s own report about adopting the 4K HDR logo, and you can also see the list of LG models that support the logo here.
We are currently in advanced discussions with several TV manufacturers and expect to announce the adoption of the logo by other TV manufacturers in due course.
What does the logo cost?
TV and set-top-box manufacturers wishing to display the logo should contact us for licence fee information.
Use of the logo is free of charge for companies that are not TV device manufacturers. Such companies wishing to display the logo must follow the Logo Usage Rules.
What regions does the logo cover?
Currently the technical requirements refer to the DVB UHD Phase 2 specification for broadcast and HbbTV 2.0.1 for broadband services – covering most of Europe and some other parts of the world. When other open standards requiring HDR are published for a region, the logo technical requirements will be reviewed and updated.
How is Eurofins Digital Testing qualified to operate this logo regime?
Eurofins Digital Testing have a long history of providing device certification and testing services to the industry. We are the world’s leading independent test laboratory for digital TV and operate a number of certification regimes and provide world leading testing tools and materials to the CE industry.
How can I find out more?
Please register your interest in the 4K HDR Ultra HD Logo here or download our datasheet for more information.