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What is HDR?Understanding High Dynamic Range Display Standards


What is HDR?Understanding High Dynamic Range Display Standards

In recent years, the development of screen technology is more powerful than ever, such as: 4K, 8K, SVA panels, quantum dots, HDR, 144Hz refresh rate, …

Today, I invite you to learn about HDR technology, which helps the screen display extremely vivid and realistic content.

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#First. What is HDR?

HDR (High Dynamic Range) translates to a wide contrast range.

HDR is a technology that can show images with huge differences between light and dark areas. That is, the dark places will become deeper, and the places that need light will be brighter and more prominent. . . . Thus helping the overall photo or video .. become prettier.

In other words, HDR technology was created to record digital content (images/videos) where subjects are recorded with an ultra-wide color range as well as high contrast (dynamic range), bright areas. /Dark separation, clear.

Yes, looking at HDR content displayed on an HDR-enabled screen, you’ll immediately see that the image in front of you is incredibly lifelike, vivid, and colorful, with amazing detail in the dark areas – sir!

Compared with SDR’s abuse of HUE, HDR fully expresses all the colors and details of the subject, taking the visual experience to a higher level.

#2.HDR-responsive hardware devices

The two most important things to experience with HDR content are:

first: The image or video file itself is recorded in HDR mode. For example, the video below (or you can find it in a YouTube clip shot in HDR or a blockbuster on Netflix).

second Since the display has to support HDR technology, don’t worry, as it’s currently not much more expensive than a regular screen.

And that’s it! Because the rest is easy to find, most hardware from 2015 onwards supports HDR.

Nvidia Geforce GTX video cards from the 950 and AMD Radeon R9 380 already support HDR. If you need 4K resolution, you should buy a G-Sync HDR monitor with an Nvidia 1000 series card or higher.

For AMD cards, you should choose a FreeSync2 capable monitor and a Pro Duo or RX 590 or higher video card for the best 4K support. Of course, the required connection standard must be from HDMI 2.0 or Displayport 1.4 or higher.

If you’re gaming on an Xbox or PlayStation, it’s enough without the HDR screen, because they already support HDR!

#3.Color, Contrast and Screen Support

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It can be said that HDR is the most advanced display standard at present, requiring the screen to support 10-bit color (1 billion colors), while the original Blu-ray standard used to only support 8-bit (16.8 million colors). ).

In terms of contrast, to display HDR content well, you need a screen with a brightness of 500nits or even 1000+nits, and an ultra-low black level of 1 => a contrast ratio of 500:1

Notice background panel On popular LCD screens that do not support HDR, only IPS or VA are supported.

Maybe you will like: LCD screen technologies and variants: IPS, TN, VA

The usual IPS panels on iPhones are impossible: vivid colors, good color reproduction, excellent viewing angles, etc., while VA panels are less common but have better contrast, faster response times, and longer response times.

#4.Epilogue

Well, the above is the basic information about HDR. Through this article, I believe you understand what HDR is?

Whether or not to invest in an HDR experience still largely depends on your pocket, and your aesthetic requirements.

I have this suggestion, if you want to “play” HDR, you should buy a 50-inch 4K screen, because the configuration is low, and it is difficult to distinguish whether the content is HDR or a good screen. (OLED, quantum dots).

For gamers, it is recommended to choose an HDR monitor that supports G-Sync or FreeSync technology, and a GPU that supports ray tracing, such as Nvidia RTX 3000 series or AMD Radeon 6000 series.

Hope this article is useful to you, don’t forget to share this article if you find it useful, thank you!

read more:

  • What is the difference between OLED and AMOLED screens?
  • What is MicroLED?Learn more about MicroLED screens
  • How many types of touchscreens are there and how do they work?

CCTV: Yang Mingsheng
edit By Kien Nguyen