how many local dimming zones

In order to get the best possible experience from our website, please follow below instructions. But what you may not realize is that the technology behind your television that makes it possible is Full Array Local Dimming FALD —and it can mean the difference between just watching, and really immersing yourself in it.

In these TVs, the LED lights sit around the perimeter of the screen, with each zone dimming as a group in an attempt to improve contrast. In general, they do a fine job of creating contrast, but the lights are unable to dim individually and they lack the richness and depth of FALD TVs—and depending on the quality of the television you choose, their color and contrast levels may not be evenly distributed.

It uses a small amount of LED lights behind the screen, which work to light the picture. However, because all of the contrast depends on just a few lights, dark scenes can end up ALL dark and light scenes look TOO light, which means that contrast is negligible at best and whatever is on the screen won't come close to a true-to-life image. For the most part, Edge-Lit televisions have replaced Direct Back-Lit TVs, but you can still find some new ones at a good price, if you're interested.

With light bleeding decreased, you get greater contrast and superior picture quality, while enjoying enriched colors and life-like images for a true home-cinema experience. Savings will be reflected in the cart when all offer requirements are met. If any of the qualifying items are removed from the cart or part of the order is cancelled, the promotional savings will be void.

All three items must be purchased in the same transaction. Availability, prices and terms of offer are subject to change without notice. Product features and performance may vary and are subject to network availability and connectivity. Because life waits for no one, at LG USA we create consumer electronics, appliances and mobile devices that are designed to help you connect with those who matter most.

Whether that means cooking a nutritious, delicious meal for your family, staying connected on-the-go, sharing your favorite photos, watching a movie with your kids or creating a clean, comfortable place to celebrate the moments that matter, we'll be there for you every step of the way. Designed with you in mind, LG products offer innovative solutions to make life good.

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JavaScript appears to be disabled in your browser. Please enable JavaScript to ensure you get the most out of the LG site, products, and services. To properly experience our LG. Skip to Contents Skip to Accessibility Help. Go to page top. Prices subject to change without notice. Quantities are limited.Backlighting in 4K TVs may not be one of those specs which many consumers pay a tremendous amount of attention to but its importance is crucial in affecting the overall display performance of any 4K TV.

Backlighting is crucial for high quality picture performance and contrast. Then of course there are also other core technologies within the rubric of TV backlighting which you should also bear in mind. These mainly consist of local dimming and OLED display. First, before we move onto our descriptions of all the different 4K TV backlighting technologies and arrays, we have to make sure to give you a fundamental understanding of what local dimming is and how it works.

This is where local dimming comes in. Obviously, the technology performs in radically different levels in each of these backlighting configurations. The 4K TVs which deliver the best local dimming performance are full-array backlit models with the technology.

Basically, premium edge-lit 4K LCD TVs depend on high quality light blocking in their LCD panels much more than on local dimming for the quality of their black level performance. This creates a display and dimming performance for onscreen content which completely blows even the best LCD 4K TVs and their backlights out of the water in its precision.

These two mechanisms for illuminating a 4K TV screen selectively are enormously different even though they both work to achieve the same purpose, which is to shine or cut off light passing through pixels on a television screen display surface for the sake of brightening or darken specific areas of the display as needed for the color and lighting patterns of content playing on its surface.

We mention color as well here because the RGB Red, Green, Blue subpixels of each 4K TV pixel which are activated in different ways to make all the millions of colors your TV displays depend fundamentally on a source of light for their color saturation patterns.

The vast majority of 4K TVs sold today are edge-lit models and generally speaking, this type of backlighting design is the cheapest and easiest to produce in a 4K LCD TV. Basically in an edge-lit television model, the LEDs used to illuminate content across a screen are found along the edges of the TV behind its LCD panel.

Better 4K TVs with edge-lit displays will on the other hand have all four of their edges covered in LED array strips all-sides configuration. Generally, the major 4K TV makers are pretty leery of letting the public know which of their edge-lit 4K TVs come with all-sides LED arrays along all four edges and which models only offer LEDs along one or two edges but as a general rule, the all-sides configuration is the best by far at producing local dimming and better black uniformity in a TV display.

On the other hand, many edge-lit 4K TVs can still be high-end premium models. Their black levels and black uniformity can also be excellent thanks to much better LCD panel design. Also, if a 4K TV has both direct-lit backlighting and local dimming, the precision of the local dimming can be much better than it is in edge-lit 4K television models.

So to distinguish the two, we need to make clear that in cheaper 4K TVs, the direct-lit backlight panels used are a lot different from full-array direct-lit premium backlight panels in that they contain far fewer individual LEDs and in many cases, they also lack local dimming of any kind.

In other words, without local dimming technology, the array of LEDs always stays fully active and only the LCD panel in front of it blocks out light selectively as needed for rendering dimming patterns in content. This is a design often found in cheaper 4K TVs and it can also often mean that a TV display offers even worse contrast than an edge-lit model.

Even in direct-lit 4K TV models with local dimming, the quantity of LEDs arrayed directly behind the LCD panel is really limited and offers only a few really big local dimming zones. This means weak local dimming precision for content and plenty of halo effect on bright points over a dark background.

For the reasons above, cheaper direct-lit backlight designs with few LEDs are actually less common than edge-lit backlighting in many premium edge-lit 4K TVs. Even more importantly, all of these thousands or hundreds of LEDs are divided into numerous local dimming zones in which small groups of individuals diodes can be turned on or off as needed for onscreen content.

Each of these dimming zones is made up of a group of LEDs which can be turned on or off together as needed for content on the screen and the technology as a whole offers a dramatic improvement over edge-lit local dimming or even basic direct-lit local dimming when it comes to picture quality and picture depth. Hi there Manish. It almost certainly has an direct-lit backlight array but with limited numbers of LEDs and no local dimming for a model like this.

Great article featuring a lot of useful information! Nice briefing and superb clarity given in the article.

Introduction to Local Dimming

Great work and good explanation. Great piece…very accessible! Or is it really only of value when every other piece in the chain cables, source media, etc support these technologies??? Hi there Jerry. Hey there Owoios. Thanks for pointing that out. It has been corrected. Rest of the article is informative. Latest 4k news.We purchase our own TVs and put them under the same test bench, so that you can compare the results easily.

No cherry-picked units sent by brands. Local dimming is a feature on LED TVs that dims the backlight behind parts of the screen that are displaying black. This makes blacks appear deeper and darker on those parts of the screen, which can be a big bonus for people who watch videos with darker scenes, like movies and TV shows. Unfortunately, the feature can also introduce a few issues to the picture.

To test local dimming, we play a test video on the TVs to see their local dimming capability in action. We then subjectively evaluate the TVs based on whether the feature improves picture quality. Local dimming is meant to increase contrast by making black look deeper. Local dimming functionality will, therefore, make the most difference when watching a dark scene in a dark room.

Lights being on in the room would lead the TV to reflect that light, which means you won't really see the benefit of local dimming in a bright room. Local dimming can be of noticeable benefit to picture quality, but it can also lead to blacks losing detail, or light blooming off of bright objects and into darker portions of the screen. If local dimming is a feature that sounds appealing, you should pay close attention to the results of this test, just to make sure you get a TV that does this feature well.

Our local dimming video represents how well the backlight can adjust when dimming a moving image involving bright and dark elements. For the purposes of our video, we always show the maximum local dimming setting in this video, but we test all the different options and will mention which mode we consider the best to use, and why. Our backlight test verifies the configuration of the TV's backlight.

They perform quite differently for local dimming, so this result is quite important.

how many local dimming zones

Using local dimming on this kind of TV will usually lead to either horizontal or vertical bands of the screen becoming dimmer, corresponding to the locations of the LEDs on the edges. Our local dimming score is based on the subjective impression we get from enabling dimming on a TV. Because of these trade-offs, how 'good' any individual local dimming feature comes down to personal preference. You shouldn't only look at our score to determine whether you will like the local dimming on a given TV.

Ideally, a TV will offer a few settings options for you to choose whatever compromise you like. A perfect score would go to a TV that can display very bright highlights next to deep blacks, without any blooming. This is because LCD and LED models are backlit, meaning they rely on a light behind the panel to make the picture visible, and the LCD layer is not able to prevent all light from escaping out of the screen.Trusted Reviews may earn an affiliate commission when you purchase through links on our site.

Learn More. On the design front, aside from carrying a slightly differently styled rear panel, the only major difference is the way the Sony ZF9 sits on a pair of sharply angled feet, while the Sony ZD9 sits on a centrally mounted metal plate.

But at least they carry channelling to help you hide your cables. Thanks to a new X-Wide Angle feature, you can watch the ZF9 from pretty much any angle without the picture losing either colour saturation or contrast.

Sony 75ZF9 on the left, 75XE on the right. This is a massively important step forward for any household where one or more viewers routinely has to watch TV from an angle. This looks set to be far cleaner, more intuitive and less dictatorial than its predecessor.

Related: Best TV. Sony is notoriously unwilling to share TV specifications such as local dimming zone counts or maximum brightness outputs.

how many local dimming zones

What we do know is that the ZF9 follows the ZD9 in using a direct lighting system where the LEDs sit directly behind the screen in conjunction with a local dimming system that can control hundreds of separate zones. And may even support less. What is certain is that the processing being used to drive the dimming algorithms is far more powerful on the Sony ZF9 — and experience has shown before that this can actually be much more important than simply having the most dimming zones.

The ZD9, by comparison, uses the X1 Extreme processor.

how many local dimming zones

Ultimate is claimed by Sony to be around twice as powerful, and as such should be able to deliver better image processing results on the fly than even the impressive X1 Extreme engine could. But having seen X1 Ultimate running on an LCD TV at the CES in January, we expect better sharpness with both upscaled HD and native 4K sources; better noise reduction; better colour management, especially in peak brightness areas; smoother colour gradations; and enhanced shadow detailing.

The result is the sort of natural look to motion associated with black frame insertion techniques, only without the overall picture dimness BFI usually causes.

Certainly it seemed at the ZF9 launch event as if Sony may be reducing peak brightness a little versus the ZD9, maybe to match colours more to the look of the OLED monitor.

Plus it felt as if Sony might be sacrificing some black level depth on the ZF9 in return for getting shadow detailing to look closer to that of the X Particularly eye-catching is a new Netflix Calibrated Mode.

Look out for a review in the next two to three months. Unlike other sites, we thoroughly review everything we recommend, using industry standard tests to evaluate products. We may get a commission if you buy via our price links. Tell us what you think — email the Editor. John Archer. John Archer has written about, and been immersed in the world of, home entertainment technology for over 20 years.

He intends to continue in this vein until he becomes too frail to lift ridiculously b….It is available in 55, 65 and 75 inches and in slightly different versions. The Q90R is one of the best TVs on the market and is suitable for rooms with a lot of light — but there are also a few disadvantages. The sturdy stand is made entirely out of metal and offers space for a soundbar. The footprint is very narrow. The Q90R is available in 65 and 75 inches and depending on in which country you are it might also be available in 55 or 82 inches.

Cable management is just as simple. The included One Connect Box makes connecting cables and external devices extremely convenient. The One Connect Box is connected to the TV with a special cable and the cable fits into special grooves in the housing so that it is not noticeable at all.

Everything you need to know about 4K UHD TV backlighting and local dimming

Even the mains connection is located in the One Connect Box. The image quality on the Q90R is fantastic. The 10 bit The color depth is measured in Bit.

The small 55 inch QLED manages with zones. Thanks to these features, the Q90R has an extremely deep black and an incredible contrast ratio of The Q60R also delivers top performance in motion handling Displaying fast moving objects.

This is one of the best results ever. Details always remain sharp and do not blur, even during fast events. The extremely low input lag Time it takes for the input signal to appear on the screen delay ensures that even fast action games can be played without delay.

These features make the Q90R the perfect gaming TV. In Game Mode, local dimming is virtually deactivated, resulting in a slightly blurred picture and a reduction in contrast.

If you want to switch off Game Mode while playing, you have to accept an input lag Time it takes for the input signal to appear on the screen delay of 50 to 80ms. This is clearly too much for fast-paced games, like shooters. The sound quality of the Samsung is better than many other current TVs, but still far behind the picture quality.

Four built-in loudspeakers and two built-in subwoofers generate a total rated output of 60 W. If you want to bring the cinema sound home, you have to resort to other solutions.

Then you can also use a soundbar with Dolby Atmos or a HiFi system. It is controlled via the supplied remote control or via the Bixby language assistant. The most important apps like Netflix or Amazon Prime Video are pre-installed. Great feature: Streaming and screen synchronisation via Apple AirPlay 2 are possible!

They choose both optically and technically. Immediately the centrally mounted stand is noticeable, which makes placing a sound bar more difficult. In addition, there is no One Connect Box. In terms of picture technology, the Q80R is inferior to its big brother, which places the Samsung Q80R more as a device in the upper midfield.

There are 50 dimming zones in total. It is available in 55, 65 and 75 inch sizes. This post is also available in: Deutsch.

The Q90R cuts a fine figure in any discipline. Strong and bright colours make for a feast for the eyes. Although the colours are not always lifelike, animated films or video games look great.

Even fast action films are a lot of fun due to the extremely good motion handling. Only the sound lets air up, here the use of an external sound bar or a HiFi system is recommended.In order to get the best possible experience from our website, please follow below instructions. There's nothing like bold, vivid imagery that immerses you in every moment, whether you're watching a dark and murky thriller, or a high-def nature flick exploring the great outdoors.

But what you may not realize is that the type of LED TV you view it on can make the difference between a so-so experience and a cinematic masterpiece. That's where the term Local Dimming comes in. Let's start with the entry-level Direct Back Lit TVs, in which the panels are back-lit by just a few lights, leading to a little better contrast, color and richness than that of their predecessors. While the picture can look okay overall, dark scenes can often still feel too dark, and bright scenes can seem too bright.

Luckily, while they're still a pretty good, budget-friendly choice with convenient features, many consumers are opting for the popular Edge Lit TVs, which we'll cover next.

The Great. The color and contrast levels are pretty nice compared to Direct Back Lit TVs and, for the money, still provide a great entertainment experience. The Amazing. Found mostly on newer 4K TV models, these boast a "full array" of LEDs—hundreds—behind the TV's panel—distributed into multiple dimming zones that can dim LEDs as needed for the ultimate black levels, enhanced picture dimensions, amazing shadow details and decreased light bleed. All of which translates to excellent contrast, gorgeous picture quality, rich colors and true-to-life images that deliver a high-end cinema experience.

What to look for in Full Array Local Dimming TVs While the Full Array Local Dimming backlight reveals a remarkably accurate picture with dazzling 4K detail, it's important to also choose technology that works together with these innovations to create a full cinematic experience. Just how much dimming you need to get the perfect picture really comes down to personal preference, which is why LG TVs offer different settings for Local Dimming. Be sure to try them all out to see which one you like best.

You can choose from high, medium, low, or off.

Sony ZF9 vs Sony ZD9 – What’s the difference?

Because life waits for no one, at LG USA we create consumer electronics, appliances and mobile devices that are designed to help you connect with those who matter most. Whether that means cooking a nutritious, delicious meal for your family, staying connected on-the-go, sharing your favorite photos, watching a movie with your kids or creating a clean, comfortable place to celebrate the moments that matter, we'll be there for you every step of the way.

Designed with you in mind, LG products offer innovative solutions to make life good. With intuitive, responsive controls, sleek, stylish designs, and eco-friendly features, our collection gives you the power to do more at home and on the go. It includes:. Mobile: To help you stay connected your way, our mobile devices feature powerful smartphones, slim tablets and stylish smartwatches that fit seamlessly into your life.

And whether you want to download the latest apps, shop online, text, track your fitness or just surf the web, they make it easy to do it all on-the-go. Featuring brilliant pictures, lifelike colors and sound that envelop you from the very first note, our collection will transform your living room into a stunning home theater.It is available in 55, 65 and 75 inches and in slightly different versions.

The Q90R is one of the best TVs on the market and is suitable for rooms with a lot of light — but there are also a few disadvantages.

The sturdy stand is made entirely out of metal and offers space for a soundbar. The footprint is very narrow. The Q90R is available in 65 and 75 inches and depending on in which country you are it might also be available in 55 or 82 inches. Cable management is just as simple. The included One Connect Box makes connecting cables and external devices extremely convenient. The One Connect Box is connected to the TV with a special cable and the cable fits into special grooves in the housing so that it is not noticeable at all.

Even the mains connection is located in the One Connect Box. The image quality on the Q90R is fantastic.

Sony 75-inch ZD9/ Z9D: Most Local Dimming Zones on LED LCD Yet!

The 10 bit The color depth is measured in Bit. The small 55 inch QLED manages with zones. Thanks to these features, the Q90R has an extremely deep black and an incredible contrast ratio of The Q60R also delivers top performance in motion handling Displaying fast moving objects. This is one of the best results ever.

Details always remain sharp and do not blur, even during fast events. The extremely low input lag Time it takes for the input signal to appear on the screen delay ensures that even fast action games can be played without delay.

Everything you need to know about 4K UHD TV backlighting and local dimming

These features make the Q90R the perfect gaming TV. In Game Mode, local dimming is virtually deactivated, resulting in a slightly blurred picture and a reduction in contrast.

If you want to switch off Game Mode while playing, you have to accept an input lag Time it takes for the input signal to appear on the screen delay of 50 to 80ms.

This is clearly too much for fast-paced games, like shooters. The sound quality of the Samsung is better than many other current TVs, but still far behind the picture quality. Four built-in loudspeakers and two built-in subwoofers generate a total rated output of 60 W.

If you want to bring the cinema sound home, you have to resort to other solutions. Then you can also use a soundbar with Dolby Atmos or a HiFi system. It is controlled via the supplied remote control or via the Bixby language assistant. The most important apps like Netflix or Amazon Prime Video are pre-installed. Great feature: Streaming and screen synchronisation via Apple AirPlay 2 are possible! They choose both optically and technically. Immediately the centrally mounted stand is noticeable, which makes placing a sound bar more difficult.