UHD Alliance presents HDR specification for laptops and smartphones

The UHD Alliance has presented the specification and logo of ‘uhda mobile hdr premium’. To qualify for the logo, mobile devices must have a dynamic range of 0.0005 to 540cd/m².

The “mobile hdr premium” designation should provide users with assurances that laptops, smartphones and tablets meet the UHDA’s criteria for resolution, dynamic range, color space and bit depth, the alliance reports. Users can recognize those devices by the corresponding logo.

More and more streaming services such as Amazon and Netflix are transmitting images in 4k with HDR. The UHD resolution is no longer just reserved for TVs, laptops and even some smartphones now pass on such resolutions, but there are also more and more mobile devices with HDR support. These include, for example, Sony Xperia XZ Premium announced last week and the LG G6, which supports Dolby Vision HDR. The Samsung Galaxy Tab S3 can also handle HDR images.

The devices that want to have the Mobile HDR Premium certificate must have a pixel-per-degree resolution of 60, where it is not known what distance from the screen the alliance maintains as standard. This distance is included in the ppd value. In addition, screens must be capable of displaying 90 percent of the DCI-P3 color gamut and must be 10-bit screens to qualify for a license.