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Mon Dec 04, 2017 1:14 pm
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When displaying content with High Dynamic Range, or HDR, a compatible Roku TV switches into a special HDR mode to achieve the expanded range of contrast and color that creates a more immersive picture. To watch movies, videos or TV shows in this special HDR mode, the title must be available in one of two HDR formats – HDR10 or Dolby Vision™.
When content is in the HDR10 format, all Roku TVs capable of displaying HDR content will switch into the special HDR mode. However, when content is in the Dolby Vision format, only Roku TVs that support Dolby Vision will switch into the special HDR mode. Review the online specifications for the manufacturer of your Roku TV to determine if your model supports only the HDR10 format, or both the HDR10 and Dolby Vision format.
The amount of HDR10 and Dolby Vision content is increasing, but the majority of titles available on streaming services and discs are still limited to Standard Dynamic Range, or SDR, which does not have the enhanced contrast and color information needed to drive the special HDR mode.