HDR (High Dynamic Range) explained

HDR (High Dynamic Range) pixel technology explained

HDR, or High Dynamic Range, is a new type of display technology that allows television pixels to display a wider range of colour and contrast combinations, providing a more realistic image and immersive viewing experience.

What’s the difference between 4K and HDR?

4K technology displays images at over eight million pixels (3,840 x 2,160), providing pictures with an ultra-high resolution that is roughly four times that of current HD (1,920 x 1,080 pixels). HDR technology enhances a pixel’s ability to become brighter or darker, expanding the set of colours that can be displayed. 4K ensures that the image is clear, while HDR uses colour ranges to create image depth. An HDR TV can cover a wider space within the colour spectrum. To quantify it, a standard dynamic range (SDR) television can display approximately 16 million colours, while an HDR-capable TV can display approximately 1 billion colours. This enables the creation of more realistic images on screen, and helps to mimic what a person might see in reality.

For more information about 4K on Optik, please visit telus.com/4kupgrade.

Am I ready for 4K HDR?

To watch 4K HDR on Optik TV, you will need the following:

  • An Optik 4K Digital Box
  • A subscription to TELUS Internet 50 or higher
  • An HDMI cable (2.0a/2.0b)
  • A TV that supports HDR

With the Optik 4K Digital Box and a subscription to Internet 50 or higher, you’re ready for HDR as content becomes available. To deliver the best viewing experience, Internet 50 or higher is required to support the bandwidth requirements of 4K and 4K HDR video content.

To check if your TV is able to display HDR, check your owner’s manual or check the manufacturer's online support pages for your TV model to ensure that your settings are optimized for HDR. For example, on some Sony brand HDR-capable TV sets, HDMI port settings need to be changed from Standard to Enhanced in order for HDR content to be displayed properly.

What content is available in HDR with Optik TV?

Currently, Optik TV provides customers access to 4K HDR content on Netflix.

How do I watch 4K HDR content on Netflix?

To access 4K HDR content through Netflix on Optik, you require a premium Netflix subscription (Ultra HD). To upgrade your Netflix subscription login at netflix.ca/changeplan.

HDR titles can be identified by an HDR badge located above the title synopsis. You can also search for HDR using the Search menu and all HDR titles will displayed.

Tune to channel 422 to launch Netflix on your Optik 4K digital box.

What HDR formats does Optik TV support?

Optik TV supports both HDR10 and HLG formats. To view content in HDR10 or HLG, your TV must support each individual format respectively. The most common format is HDR10; another format is Hybrid Log Gamma (HLG) used for live broadcast. Different manufacturers of television equipment (including digital boxes) and content producers use different formats of HDR, sometimes offering support for both.

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