Differences Between HDR And SDR

By XGIMI Tech - 2022-01

HDR is composed of elements focused on showing you an image of better quality by enhancing the color and exposure, bringing everything to your eyes the moment you look at it. SDR displays a simplified and natural view for the image making it dull.  

This allows you to capture details that are lost due to overexposure in HDR. Details can also be lost on darker spots of an SDR due to underexposure.

Debates on HDR and SDR comparisons are boundless, which we have simplified for better understanding. Read on to get information on the best 4K HDR projectors and HDR short throw projectors.

Difference Between HDR And SDR

Deeper color, more immersive video quality; HDR(High Dynamic Range) as the name implies, has a higher dynamic range of 17 stops(standard measurement) close to the dynamic range of the human eye which is about 20 stops compared to SDR, which has only 6. The dynamic range defines the percentage between the biggest and smallest fixed light intensities. The dynamic range makes HDR images easier to see, compared to SDR.

Perks Of HDR

  • Wider color gamut(range)
  • Wider dynamic range
  • Higher brightness.

In simpler terms, HDR gives a more detailed and vivid image due to its higher dynamic range.

Performance of HDR

Things To Know About The HDR Standards

They include HDR10, HDR10+, Dolby Vision, HLG (hybrid log-gamma) and Advanced HDR by Technicolor.

Metadata

A significant property of the HDR standards differentiating them is the Metadata.

METADATA tracks the HDR content according to its color range and highest brightness level, helping the device to display content in the best quality, here's-how;

Dynamic Metadata tracks the brightness levels and color range on every scene, displaying them on an optimal level, aiding devices unable to display high HDR content. It has a better viewing experience and can show more real-life scenarios.

Static Metadata (optional for HDR10) cannot track different colour ranges and brightness levels, so it uses the same level of information throughout the display.

HDR10

HDR10, referred to as generic HDR, is cheap and royalty-free (no licensing fee) meaning there is no additional or ongoing payment after the first.

It supports 10-bit video stream/colour depth (over a billion colors) and 1000 nits of highest brightness level.

It uses static Metadata and has lower requirements compared to HDR10+ and Dolby Vision.

XGIMIs HORIZON series and Elfin both use HDR10 and HLG (Hybrid log-gamma) technology, XGIMI AURA (the ultra-short throw laser TV) uses HDR10.

Difference between having HDR10 or not

XGIMI Horizon Pro (4K long throw projecor)

● 2200 ANSI lumens, bright enough for medium to high ambient light
● 4k resolution
● ISA technology (autofocus, auto keystone correction,  obstacle avoidance, and auto screen alignment)
● HDR10 & HLG, provide excellent image quality

XGIMI HORIZON Pro offers intelligent screen detection that can adjust the size of the image to the size of your screen. It launches in less than 10 seconds.
More features:
● 2200 ANSI lumens, bright enough for medium to high ambient light
● True 4k resolution.
● ISA technology (autofocus, auto keystone correction,  obstacle avoidance, and auto screen alignment)
● X-VUE 2.0 Image Engine for sharp image and lifelike colors
● Built-in Android TV™ with over 5000 apps, ie. HBO, Disney+
● Harman Kardon speakers, 2*8W speakers.

XGIMI HORIZON Pro - with ELSA AWARD for BEST BUY PROJECTOR
XGIMI HORIZON Pro - Highly Recommended By Projector Reviews
XGIMI HORIZON Pro - true 4K projector - front
XGIMI HORIZON Pro - true 4K projector - side
XGIMI HORIZON Pro - true 4K projector - back
XGIMI HORIZON Pro - true 4K projector - top
XGIMI HORIZON Pro - with ELSA AWARD for BEST BUY PROJECTOR
HORIZON Pro
XGIMI HORIZON Pro - Highly Recommended By Projector Reviews
XGIMI HORIZON Pro - true 4K projector - front
XGIMI HORIZON Pro - true 4K projector - side
XGIMI HORIZON Pro - true 4K projector - back
XGIMI HORIZON Pro - true 4K projector - top

 XGIMI AURA (4K Ultra Short Throw laser projector)

This is one of the most advanced projectors for brightly lit rooms that can serve adequately in environments with strong or moderate ambient light. The AURA comes with a laser-based light source with the following relevant features:
●Very bright light source delivering 2400 ANSI lumens, similar to a TV
●True 4K UHD with 8.3M individual pixels onscreen
●UST projection 11.7” from any wall to project on a 120” screen with razor-sharp images
●UST projection 4.3” from any wall to project on a 80” screen with razor-sharp images
●Advanced Laser Phosphor Display (ALPD) technology that provides consistent brightness, brilliant color display, and razor-sharp picture quality even in diffused lighting
●20,000-hour lifespan of laser light source with consistent brightness over long years of usage
● Picture size and picture quality are adjustable at will

● 2400 ANSI lumens, similar to a TV
● 4K UHD with 8.3M individual pixels onscreen
● UST projection 11.7” from any wall to project on a 120” screen with razor-sharp images
● HDR10

AURA
AURA - 4K UST Laser Projector - front
AURA - 4K UST Laser Projector - side
AURA - 4K UST Laser Projector - top
AURA - 4K UST Laser Projector - back
AURA - 4K UST Laser Projector - lateral side
AURA
AURA - 4K UST Laser Projector - front
AURA
AURA - 4K UST Laser Projector - side
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AURA - 4K UST Laser Projector - lateral side

XGIMI Elfin

Elfin is a new portable LED projector launched by XGIMI. It is easier and portable to move around because of its small size. It has automatic screen adjustment technology.
More features:
● 800 ANSI lumens, suitable for low to medium ambient light
● 973g, thin and compact, easy to move from one place to another
● 1080p FHD resolution
●ISA technology (autofocus, auto keystone correction, auto obstacle avoidance, and auto screen alignment)
● 26.5ms Game Mode Boost

● 1080p FHD resolution
● 973g, thin and compact, easy to move from one place to another
● HDR 10 to provide excellent image

Enjoy Home Entertainment with the Elfin 1080p compact projector
Elfin - 1080p compact projector - White - top
Elfin - 1080p compact projector - White - front
Elfin - 1080p compact projector - White - side
Elfin - 1080p compact projector - White - back
Enjoy Home Entertainment with the Elfin 1080p compact projector
Elfin
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Elfin - 1080p compact projector - White - back

HDR10+

Founded by Samsung, Panasonic, 20th Century Fox.
This royalty-free (no license fee) HDR produces 4000 nits of optimal light and uses Dynamic Metadata to track colour gamut and peak brightness on every scene. Images appear like real-life scenes.
It requires better screen panels and processors. It is a little harder to implement when compared to HDR10 and is not as widely used. HDR10+ is supported by lots of TV brands, streaming apps, and production houses.

XGIMI Halo+ uses HDR10+.

Halo+

Halo+ is one of the most brightest and advanced portable projectors, it outshines most portable projectors and is suitable for those with a higher budget.
More features:
● 900 ANSI lumens
● Built-in batteries for 2-4 hours
● 1080p FHD
● ISA technology (autofocus, auto keystone correction, auto obstacle avoidance, and auto screen alignment), 6 seconds setup
● Android TV™

● 900 ANSI lumens
● 1080p FHD
● ISA technology (autofocus, auto keystone correction, auto obstacle avoidance, and auto screen alignment), 6 seconds setup
● HDR10+

Halo+ - 1080p FHD Portable Projector - front
Halo+ - 1080p FHD Portable Projector - Fully Portable Design
Enjoy Camping Entertainment with the Halo+ 1080p FHD Portable Projector
Halo+ - 1080p FHD Portable Projector - side
Halo+ - 1080p FHD Portable Projector - top
Halo+ - 1080p FHD Portable Projector - back
Halo+ - 1080p FHD Portable Projector - front
Halo+
Halo+ - 1080p FHD Portable Projector - Fully Portable Design
Enjoy Camping Entertainment with the Halo+ 1080p FHD Portable Projector
Halo+ - 1080p FHD Portable Projector - side
Halo+ - 1080p FHD Portable Projector - top
Halo+ - 1080p FHD Portable Projector - back

Halo+ is one of the most brightest and advanced portable projectors, it outshines most portable projectors and is suitable for those with a higher budget.
More features:
● 900 ANSI lumens
● Built-in batteries for 2-4 hours
● 1080p FHD
● ISA technology (autofocus, auto keystone correction, auto obstacle avoidance, and auto screen alignment), 6 seconds setup
● Android TV™

Dolby Vision

A licensed version created by Dolby. It comes with usage and performance rules like paying for a subscription plan to be able to use it.

It uses Dynamic Metadata (scene-by-scene color gamut and peak brightness mapping.)

Dolby Vision is supported by a few TV brands, and streaming apps, including;

  • Amazon
  • Apple
  • Google
  • Hisense
  • LG
  • Sony
  • TCL
  • Toshiba
  • Disney+

Halo+ is one of the most brightest and advanced portable projectors, it outshines most portable projectors and is suitable for those with a higher budget.
More features:
● 900 ANSI lumens
● Built-in batteries for 2-4 hours
● 1080p FHD
● ISA technology (autofocus, auto keystone correction, auto obstacle avoidance, and auto screen alignment), 6 seconds setup
● Android TV™

HLG (hybrid log-gamma)

  • Created by the BBC and Japanese broadcaster NHK for high-quality satellite TV and Live TV.
  • Made mainly for broadcasting services. It supports the combination of SDR and HDR Metadata into the same signal.
  • It has lower performance and cost compared to HDR10+ and Dolby Vision.

Many HDR device manufacturers use this due to its simplicity and lower cost. HLG transfer function and format is royalty-free.

Things To Consider When Choosing HDR Devices Such As TVs And Projectors

  • HDR10 requires a smaller fee and is more used and compatible with lots of devices. It uses an open system whereby it does not require a license and ongoing payment. Users have access to lots of content but its display is not as authentic compared to HDR10+ and Dolby Vision.
  • When looking to have a mind-blowing viewing experience with an HDR standard that is also licensed free, HDR10+ is what you need. It is compatible with fewer contents compared to HDR10. It uses dynamic metadata, which displays a real-life image quality.
    Check the HDR standards section above for information on Metadata. XGIMI HALO+ projector supports this HDR standard.
  • Looking from a technical standpoint, Dolby Vision is the best HDR standard although it is compatible with a few content and brands like Amazon, Apple, Disney, Google, LG. Support Dolby Vision.
    It is licensed, so usage incurs ongoing payments and licenses by Dolby.
  • When you buy the projector or TV, look out for ones with as many HDR standards compatibility as possible.
  • XGIMI products have technology that can improve your viewing pleasure other than Metadata, such as MEMC and X-VUE2.0:

a. MEMC (Motion Estimate And Motion Compensation), a technology that observes motion direction, predicts the following frames, and then adds fitting frames. It makes content appear smoother. 
You can learn more about XGIMI's MEMC Technology here.

b. X-VUE 2.0 is also an image engine developed by XGIMI to sharpen color and improve clarity. You can learn more about XGIMI's X-VUE 2.0 Technology here.

Conclusion

The benefits of HDR allow you to see more detail in your games and movies for a realistic feel. HDR possesses an increased dynamic range near that of human vision. It displays bright colors and images that appear real. It reveals details in shadows.
SDR = dynamic range of 6 stops, human vision = dynamic range of 20, making images appear farther. The colors are dull and the lighting is low.

Some HDR versions are:

HDR10 (uses static metadata, dynamic metadata absent, royalty-free.)

HDR10+(dynamic metadata present, royalty-free.)

HLG (dynamic metadata absent, mainly meant for broadcasting, royalty-free.)

Dolby Vision (dynamic metadata present, license oriented, supported by few brands.)

XGIMI products and HDR versions they support:

Horizon series (long throw projector): HDR10, HLG.

Aura (4K ultra-short-throw-laser projector): HDR10.

Elfin: HDR10.

Halo+: HDR10+ (leading HDR projector.)

Halo: HDR10

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XGIMI HORIZON Pro - true 4K projector - side
XGIMI HORIZON Pro - true 4K projector - back
XGIMI HORIZON Pro - true 4K projector - top
XGIMI HORIZON Pro - with ELSA AWARD for BEST BUY PROJECTOR
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XGIMI HORIZON Pro - true 4K projector - back
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