micros lcd panel backlight brands

The arrival of Mini LED in the latest competition of display technology has not only laid down the foundation for the next generation of Micro LED display technology, but also became the new opportunity in breaking through the predicament for the LED industry and panel manufacturers. As invigorated by the aggressive involvement from major brands including Apple, multiple Mini LED backlight products and the application of RGB self-luminous displays are now on the verge of commencement, and the new products for the relevant application are expected to enter substantially increased production in 1H21.
After year of implementation subsequent to the arrangement by SONY and Apple since the early phase of the luminous display technology, Micro LED has become a key technology amongst major global manufacturers, semiconductor suppliers, and panel factories, and has constituted a pristine structure for the field of display application. However, due to the high interdisciplinary technical threshold for Micro LED, the leading technology in Mini LED has become another opportunity in industrial breakthrough before achieving commercialized mass production, which explains how manufacturers had been heavily investing in the particular direction for the past three years in the hope of accelerating on mass production that would facilitate an exit from the industrial predicament.
Mini LED has been reduced to 75-300 μm in terms of chip dimension through the existing LED technology, and possesses relatively smaller investment cost on equipment, with a primary concept of direct backlight that is applied on devices, including notebooks, smartphones, tablets, and TVs, where the Mini LED RGB display product that was developed last year has also penetrated into the market of large commercial displays. Mini LED triumphs OLED in yield rate, brightness, performance, reliability, and lifespan, though its cost will become the decisive factor in the market.
As mentioned by Max Chen, analyst of TrendForce, the usage of LED dices and the local dimming zones regarding the application of Mini LED backlight were relatively sizeable during the initial technology demonstration phase. For instance, a 65-inch TV may use more than 10K Mini LED dices, and exceeds 1,000 or more local dimming zones, which also results in cost elevation in packaging and mounting, as well as source driver IC, with a deprivation of competitiveness due to the higher prices compared to OLED. “Everyone started to realize that a simple flexing will not achieve anything, and will have to eventually resolve the actual issues”, as commented by Chen, who also expressed that people would focus on LED dices and dimming zones in the past, whereas the combination of panels and cost structure has become the new norm.
A cost breakdown of Mini LED backlight can be primarily divided into LED, SMT mounting, LCD panel, source driver IC, and panel, where source driver IC and panel occupy roughly 40% of the total cost, with possibly more than 50% for the local dimming zone, and PCB or TFT glass panels are adopted in accordance with the product specification. Most small to medium backlights are adopted with PCB panels paired with a passive matrix, with toned down allocation of LED dices and local dimming zones, and the display performance is on par with OLED. Max Chen commented that the backlight cost for Mini LED was initially 30-50% higher than that of OLED, and may now be almost the same as OLED, and even 10-20% cheaper, subsequent to re-dismantling and adjustments, which makes it more competitive in the brand supply chain.
Chen believes that Mini LED will be accelerated in development under the propulsion of various brands, and with the particularly heavy influence from Apple on the industry, the market demand is expected to explode and attracts follow-up from second to third-tier manufacturers, with further reduction in cost and elevation in penetration rate after the gradual increase of demand, where Mini LED backlight and RGB display application will enter the flourishing status by then.
Mini LED RGB display will be focused on the development of commercial monitors, and despite the relatively niche applications and fields that contain less demand in contrast to that of the application of Mini LED backlight, it is a major trend in the application of Mini LED technology, where Korean manufacturer LG and Chinese manufacturers, Konka and Ledman, are all planning to release relevant products next year. Mini LED can also be exerted and applied in special applications, such as the embedded Mini LED decorative lights from the top half of Asus’s gaming notebook, as well as taillights and interior ambient lights for automobiles.
“I believe that the development of Mini LED next year will accelerate much faster compared to this year if a bellwether is to stand up and lead the market”, commented Chen, who also expressed that as the leadership of Apple attracts follow-ups from other manufacturers, Mini LED may possibly replace the traditional backlight and become mass popularized alongside the escalated shipment volume and decreased cost, where the impact and effect on the industry from Chinese manufacturers’ additional investment in the Mini LED field is expected to progressively surface within the next two years.

According to TrendForce’s latest market research report the “TrendForce 2022 Mini LED New Backlight Display Trend Analysis”, the trend of Mini LED backlights led by leading players including Samsung and Apple in 2021 has encouraged other brands to introduce the up-to-date components into their new displays in 2022. For example, TV manufacturers such as Sony, Sharp, and Hisense have decided to use Mini LED backlights this year, while MSI, Lenovo, and GIGABYTE have applied the components to MNT and NB markets. As new comers have joined competition along with proactive approaches adopted by top businesses (i.e., Samsung and Apple) in the IT and TV markets, TrendForce predicts that in 2022, the number of Mini LED backlight display shipments will hit 17.6 million units, YoY 83%.
In the mid- and long term, shipments of Mini LED backlight displays from Apple and Samsung account for more than 50% of total counts, the two companies will decide the future development of relevant products. The dispute between Apple’s Mini LED displays and their OLED counterparts as well as Samsung’s positioning of its QD OLED and Mini LED backlight displays will become major factors affecting the mid- and long-term development of Mini LED products.
Currently, technologies of Mini LED backlight displays can be categorized by their target markets, namely the entry, mainstream, and premium markets. Regarding entry market, Mini LED backlight boards are produced using the more mature PM package-on-board (POB) solution, from which the products focus on creating a high cost–performance ratio. Compared to those targeting at the entry market, products targeting at mainstream-to-premium markets are made using the COB solution for SMT and packaging, which is capable of increased Mini LED array density. As for the premium market, Mini LED light boards are fabricated using glass backplanes available for even more dense diode arrangement plus the said COB approach; in this way, the resultant product can meet the strict resolution requirements of high-brightness thin displays for the premium market.

There"s an unsung hero in your living room, a piece of technology that has been steadily advancing for years, providing better and better picture quality and more immersive entertainment, and it"s one you may not even know exists. I"m talking, of course, about the backlight in your TV.
What"s a backlight? Well, it"s the light source that is situated directly behind the LCD panel of the majority of TVs. It"s what makes the screen glow, what gives bright colors their vibrancy, and increasingly, what gives dark shadows their depth.
TV backlights have undergone a surprising amount of change in the last few years, and knowing how this feature works, and what your options are will go a long way in helping you get a better than average TV for a lower than average price.
There"s a little more to the glowing panel of an LCD TV than you might expect. The LCD panel offers the shape and color components of an image, but it doesn"t actually produce any light of its own. And without light to produce the colors we see and project the image outward to the viewer, an LCD TV wouldn"t be worth much. Enter the humble backlight.
Behind the LCD panel is a backlight, and between the backlight and the LCD panel are usually a few layers of polarized filters, backlight diffusers, and other optical layers designed to turn this collection of tech components into a sharper viewable image.
You"ll have an LCD panel to provide much of the image content, and a backlight behind it to provide the light that makes that LCD panel visible and the colors vivid. But that backlight has undergone a lot of changes over time — several just within recent years. And a lot of the improvements we"ve seen in modern TVs can be traced to the humble backlight.
For the first several decades of consumer TVs, there was no need for a backlight. Cathode ray tube (CRT) technology doesn"t need one, because it is a light source unto itself. Plasma screen TVs used the same sort of phosphorescence that CRTs used, meaning that they were also capable of emitting their own light.
But with the advent of LCD-based flat screen TVs, the need arose for illumination, and originally that meant cold cathode fluorescent lamps (CCFL), a technology that"s similar to fluorescent and neon lighting. But because these lamps generate heat that can damage a display and aren"t terrible energy-efficient, they"ve pretty much disappeared from today"s TVs.
Instead, they were replaced by one of the biggest innovations in modern TV technology: LED backlighting. With this change, TV manufacturers started calling LCD TVs with LED backlight "LED TVs" to differentiate them from the older CCFL-lit models. But with the last CCFL TVs going off the market a decade ago, it"s just as likely that TV makers have kept the LED nomenclature around to blur the distinction between LCD TVs and OLED panels, which use a very different (and largely superior) display technology.
Today"s TVs use a number of backlighting methods, which we"ll discuss below, but the biggest change has been the introduction of discrete backlighting zones. Instead of illuminating the entire screen, the LED backlights of a TV can be addressed individually, meaning that they can be turned on or off, dimmed or brightened as needed to provide brighter or darker portions of the TV picture.
With local dimming zones allowing variable brightness to different sections of the display, new media includes additional metadata, beyond simple video and sound. This data describes the brightness and backlighting scheme for a given scene or frame of content. While that metadata may fall under different format names, like HDR10 or Dolby Vision, the essentials are the same — describing how those dimmable backlights should behave to produce a richer image.
But there"s a catch. Not every form of backlight offers the same level of control. As a result, not every TV has the same level of capability, even if it supports the same HDR formats.
Edge-lit displays illuminate the LCD panel by setting a row of LEDs along the top and bottom edges of a screen, or ringing the perimeter of the TV frame with LED lights. This light is then distributed across the back of the LCD panel with a special diffuser light guide, a semi-transparent sheet of plastic that allows the light from the LED in the TV bezel to illuminate a larger portion of the display.
It"s a very cost effective way to light a TV, since it uses the least amount of LEDs. It also offers some level of dynamic backlight control for HDR support. On sets that are equipped to do so, portions of the edge lighting strips can be darkened or dimmed to provide deeper blacks, or brightened to accentuate brighter portions of the screen. However, since they don"t directly light the LCD panel from behind, the effect is considerably muted when compared to other backlight technologies.
A variation on edge lighting developed by Samsung and used in some Samsung QLED TVs is called dual LED. Instead of using a single color backlight for the TV, Samsung uses a combination of cool blue and warm yellow LED lights, and alternates between them based on the content of the scene to offer a modest improvement in picture quality.
Samsung Q70T QLED TV (2020 model)Samsung uses dual LED backlight as a half-step between edge lighting and direct-lit LED backlight in it"s better affordable QLED sets, and it shows. The alternating color temperatures do offer some improvement over basic edge lighting, but the result is still a less impressive picture, even with Samsung"s impressive QLED display. Check out our full Samsung Q70T QLED TV (2020 model) review for more.
Direct lit LED backlighting uses LED lighting across the back of the TV, directly behind the LCD panel, providing a fairly uniform amount of light across the screen. It also allows for a brighter picture, since it uses more LEDs, and is able to utilize more of the light coming from those LEDs.
However, an all-white back light alone has its limitations. Because the entire LCD panel is lit uniformly, there"s little to no dynamic range offered by the display.
One common problem caused by this uniform backlight approach is that darker portions of the display are still illuminated, resulting in black portions of the screen appearing grey, a phenomenon called "elevated black levels." It"s especially noticeable on letterboxed movies, which will have a distinct unwanted glow in the black bars above and below the picture.
Toshiba C350 Fire TV (2021 model)The Toshiba C350 is one of the better Amazon Fire smart TVs we"ve reviewed, but the direct LED backlight is something of a double-edged sword. It"s better and brighter than a basic edge-lit LED backlight, and picture is better as a result, but the lack of local dimming means that – despite the TV"s support for Dolby Vision and HDR10 formats – HDR content just doesn"t look very good.
This dynamic backlighting allows a TV to deliver deeper shadows, brighter highlights, and more vivid color. If you"ll forgive the pun, this is where HDR content really shines.
Local dimming zones have become fairly common on TVs across the price spectrum, and more premium TVs have differentiated themselves by offering a greater number of backlighting zones with smaller, more tightly controlled light, which can minimize light blooms and haloing to provide better HDR performance and contrast.
TCL 5-Series Roku TV (S535)When it comes to value in TVs, the TCL name should be one of the first things you look for. The TCL 5-Series Roku TV (S535) is a great example of this, offering a QLED screen with full-array local dimming backlight that matches some of the best mid-range TVs, but at a lower price. The result is great picture quality and solid HDR performance.
Local dimming has been further refined with the introduction of mini-LEDs. By shrinking the LED size down to about one-fifth the size – mini-LEDs measure 0.008-inch (200 microns) across – more LEDs can be packed into the backlight panel, and much smaller dimming zones to be used.
Models from Samsung, TCL, and LG all utilize mini LED backlighting for its superior performance, and the combination of mini-LED and QLED color enhancement offers some of the best TV picture quality that"s ever been available.
Samsung QN90A Neo QLED TVWhen it comes to the several TVs on the market that have mini-LED backlight, the Samsung Neo QLED takes the top spot, holding the top position among the best TVs we"ve reviewed. It"s a great TV for many reasons, but the impeccable backlight and HDR performance of the Samsung QN90A Neo QLED TV makes it one of the best LCD TVs we"ve ever seen.
Ultimately, the best backlight is no backlight at all. This can be achieved in one of two ways: With current OLED displays or micro-LED technology, the latter of which isn"t yet available to regular consumers.
OLED displays have individual pixels that light up without the need for a separate illumination source, creating a self-emissive display panel that doesn"t need any sort of backlight.
And there"s a direct relationship between backlight quality and TV price, so what is the best option when you don"t want to pay an extra $1,000 for the category-leading quality of OLED – even the affordable Vizio OLED TV is $1,199(opens in new tab) – or shell out tens of thousands for a giant micro-LED TV?
For most people, we recommend looking for a TV with mini-LED, like the Editor"s Choice Samsung Neo QLED QN90A, or the more affordable TCL 6-Series Roku TV (R635). Mini LED backlighting hits the sweet spot for affordability and improved backlight performance. If you want better than average backlight control without spending the extra money for an old TV, a mini LED TV is the way to go.Our favorite TVs

Let"s start with what makes mini-LED special. By using more, smaller LEDs to illuminate the screen, a TV can have finer control over its highlights and shadows, for potentially better contrast and image quality especially with OLED, the best TV tech on the market, is that it can be more affordable, particularly in larger screen sizes. Mini-LED is an evolutionary technology, not a revolutionary one, and draws on existing LCD TV technology. In the mini-LED TVs we"ve tested so far, including the TCL 6-Series and Samsung QN90A, the picture quality improvements are the real deal, although not quite good enough to beat OLED.
Mini-LEDs are found inside normal-size TVs but the LEDs themselves are much larger than MicroLEDs. Just like the standard LEDs found in current TVs, they"re used to power the backlight of the television. A liquid crystal layer, the LCD itself, modulates that light to create the image. MicroLED isn"t LCD at all, it"s a whole new TV technology that also happens to use LEDs.
To understand mini-LED, you need to understand standard LED, at least as far as your TV is concerned. Inside all modern LCD TVs (i.e. every TV that"s not an OLED), there"s anywhere between a few, to a few hundred light emitting diodes. These tiny devices emit light when you give them electricity and are being used everywhere in the modern world, from the flashlight on your phone to the taillights on your car. They range in size -- commonly they"re around 1 millimeter, but can be smaller than 0.2 millimeter. In your TV these LEDs are collectively referred to as the "backlight."
Ideally, you"d be able to dim each pixel enough to create a visually impressive contrast ratio. This is, for example, how OLED and MicroLED work. With LCD, though, it"s much harder to do. The liquid crystal panel that creates the image only blocks the light created by the backlight. Not all the light can be blocked, so the image is grayer and has less "punch" than with OLED.
Having more zones is a big factor here, as it means improving two other aspects of the image. The most obvious is reducing the "blooming" typical of many local-dimming LCDs. Blooming is created because the local-dimming backlight is too coarse, creating light behind a part of the image that should be dark.
Imagine a streetlight on an otherwise dark road. A local-dimming TV doesn"t have the resolution in its backlight to only light up the pixels creating the street light, so it has to light up some of the surrounding night as well. Many LCDs TVs have gotten pretty good at this, but not as good as something that can dim each pixel like OLED. With mini-LED, you might not be able to light up individual stars in a night scene, but the moon probably won"t have a halo.
Meanwhile TCL introduced its third-gen mini-LED televisions this year as well, called OD Zero. TCL says OD Zero TVs will be much thinner, just 10mm in the first example, thanks to a reduction in the distance between the backlight layer and the LCD display layer. That TV also happens to be an

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.
Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:
Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:
MicroLED displays is an emerging flat-panel display technology consisting of arrays of microscopic LEDs forming the individual pixel elements. Like OLED, microLED offers infinite contrast ratio, but unlike OLED, microLED is immune to screen burn-in, and consumes less power while having higher light output, as it uses LEDs instead of organic electroluminescent materials, The list of MicroLED display manufacturers:
LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.
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Treating a mini-LED display as if it were a better-LED display is the best way to remember what it is. An LED backlight provides the brightness of an LED display. To see the visuals on the screen, the mini-LED, like LED, requires a backlight.
People often confuse the two terms. The main difference is that the former does not have a backlight to illuminate the display. When you consider it, a micro-LED is much closer to an OLEDTV than a mini-LED. This is because the OLED does not have a backlight. Instead, it can control the contrast of its pixels.
Upstream wafer factories like Epistar, HC SemiTek, etc., companies such as Everlight, Advanced Optoelectronic Technology, Harvatek, and others have invested in Mini LED technology, as have IC designers such as Macroblock, Raydium, and Jasper Display, panel producers such as AU Optronics and Innolux, and digital display makers such as Leyard.
On the one hand, it has been widely reported that Apple is working on its own micro-LED display research, while on the other hand, it has been extensively reported that Samsung is working on its own micro-LED display research. Micro LEDs, according to Apple, have the potential to make future iPhones even slimmer and brighter than the latest-generation organic LED (OLED) displays that have recently supplanted LCD panels.
Mini LED and Micro LED are two names that, in theory, signify two different things. Micro LED is a new generation of display technology that uses a matrix of small LEDs to create a display. Each pixel is independently addressed and directed to emit light, similar to OLED (self-emitting). The LED backlight is smaller, thinner, and more evenly distributed, with the LED unit measuring less than 100 micrometers in diameter. Mini LED is a better form of traditional LED backlight and is a transitional technology between traditional LED and Micro LED.
Micro LEDs have a simpler structure and better performance, but mass transmission is the main concern. Miniaturizing LEDs, which demand wafer-level technology, is the issue.4K Micro LED panels, for example, require more than 24.88 million LED chips.
Mini LED has a greater yield rate than Micro LED in the production process. When paired with flexible substrates, mini LED is also suitable for notch design and very curved backlight. Another feature that helps Mini LED devices have better color reproduction is local dimming. Mini LED technology allows LCD panels to support more HDR categories, and Mini LED products can be as compact as OLED gadgets, saving power.

Mini-LED is a type of screen tech found mostly in TV displays. Nowadays most of the major TV makers, like Philips,TCL,LG and Samsung, all have mini-LED TVs available to buy or they’re building new ones with Mini LED’s backlight tech inside them.
Some brands are even combining mini-LED with other kinds of new tech. For example,LG"s Mini LED TV range of "QNED" screens are now available worldwide. These TV models have both LG’s NanoCell LCD and mini-LED backlighting for the first time.
What’s more, there are already new TV announcements rolling in from the tech expo CES 2022. Samsung has announced new TVs at CES 2022 already, including MicroLED, mini-LED and QLED TV models. The new mini-LEDs are part of the brand’s Neo QLED TV lineup. The big changes to this line for 2022 are a new feature called Shape Adaptive Light Control that allows the TVs to have better control over blooming and an upgrade to a 14-bit backlight for more luminance points.
LCD pixels can’t illuminate themselves – althoughOLED can – so they need a light source behind them that can shine light through. This is what creates the necessary brightness and color. Because of this extra layer of backlighting, the pixels in an LCD display can never be turned completely off.
How does this impact your viewing experience? It’s best to compare it to an LCD screen. Blacks on an LCD screen don’t just lack the inky quality of their OLED equivalents, but if an LCD TV’s backlight is poorly implemented and controlled, there can be noticeable unevenness to the way the screen describes what should be uniform areas of black.
A good example is if you imagine the end credits of most movies. There’s a black screen with white text scrolling up it. When you’re watching on an LCD TV, it’s normal to see a halo of light around the words, or to let its backlight show ‘bleed’ from the corners of the screen. The result is whatever should be black is now more of a cloudy grey.
We know that no one ever bought a TV solely for how it handles the end credits of a film. But this kind of messy picture quality is what has increasingly made LCD technology look second class compared to its shiny OLED competitor.
However, there might still be a way for LCD technology to reassert itself among thebest TVs – and that’s through mini-LED.Today"s best Mini LED TV deals
Fitting more, and smaller, LED diodes behind the LCD pixels means images can be brighter. It means backlighting control can be more targeted and precise. It should allow for better control, which ought to mean less backlight bleed and stronger contrasts.Why does mini-LED matter?If it’s deployed effectively, mini-LED backlighting should allow LCD panels to get much closer to OLED levels of performance than has been possible before. These theoretical advantages are pretty compelling.
And, of course, that’s without OLED’s perceived problems: LED/LCD technology has never been the subject of screen-burn scare stories, nor does it fall prey to the eventual but inevitable drop-off in performance that’s the price of the ‘organic’ element of OLED.
Of course, the success of mini-LED will come down to the way the technology is implemented. There’s a lot of variation in the performance of similarly priced, similarly specified LED-backlit LCD screens - you only have to have a quick glance at our numerous TV reviews to see that. And if some TVs are found wanting when it comes to controlling a few dozen backlight dimming zones, can they really be expected to be any better when they have control of what could be thousands?
LG’s mini-LED range – called ‘QNED’ – has immediately become its premium LCD offering, combining mini-LED with quantum dot technology. It’s positioned above the NanoCell LCDs that were previously the company’s most aspirational LCD TVs.
The QNED99 is the hero of the range. It’s an 8K, 120Hz television with full array local dimming (all the better to show off exactly what mini-LED is capable of). It’s available in 65-inch, 75-inch and 86-inch variants. The QNED95 swaps the 120Hz panel of the QNED99 for just 60Hz, but retains the 8K resolution and all the other technological highlights – the 86-inch size aside.
There are a couple of 4K QNED ranges that are similarly arranged. The QNED90 has a 120Hz panel in front of its mini-LED Full Array Local Dimming arrangement, while the QNED85 makes do with a 60Hz panel instead.If some TVs are found wanting when it comes to controlling a few dozen backlight dimming zones, can they really be expected to be any better when they have control of what could be thousands?
The 4K flag for Samsung is flown by the QN95A and QN90A: these are both 120Hz panels, and both available in 50 in-inch, 55-inch, 65-inch, 75-inch and 85-inch screen sizes. The QN95A also features Samsung’s One Connect box, which takes all connectivity requirements away from the screen itself. There’s also the QN85A, which retains the 120Hz panel of its siblings but doesn’t have quite as many dimming zones or speaker drivers.
The panel driver and video processing engine that’s fitted to the television, for instance, will have a huge say in the way the screen performs – and if they’re indifferent components, the sheer complexity of the Mini LED arrangement could conceivably create more, rather than fewer, backlighting and contrast issues.

Current so-called LED displays are actually LCD displays that use LED as backlighting units - which are always on with a liquid-crystal layer that is used to create the actual image (i.e. block the light where needed). This complicated LCD structure results in a device with serious image quality drawbacks (mainly a low response time and relatively poor contrast ratio) and also difficulties in achieving flexibility and high-quality transparency.
Compared to an LCD display, a micro-LED is much simpler, as the LEDs themselves emit the light and can be individually controlled. This results in displays that offer a much better image quality (contrast, response time) and are highly efficient, too, as there are no filters as in LCDs. As opposed to LCDs, micro-LEDs can be made flexible.

So many choices when it comes to television. It starts with the size and resolution, but there are competing backlight technologies to consider as well. So before you plunk down serious cash, make sure you’re getting the lighting style you want by understanding the differences in QLED vs. OLED vs. Mini-LED.
QLED is a Samsung technology that builds on the typical LCD (liquid crystal display) television with LED backlighting. This is the same tech, many iterations over, which Samsung introduced in 2015. The Q in QLED stands for “Quantum Dot.” They are embedded directly into the stack of materials that make up the LCD display, such as in the flagship Samsung QN90A NEO QLED. When light hits them from the LED backlight, these dots emit their own light to enhance the image on-screen. The goal is to lessen one of the main weaknesses of LED technology, which is the “blooming” effect of brighter parts of an image slightly lighting the areas around the image, and color bleeding.
When it comes to color, QLED is excellent. There is a tremendous amount of color variety available in QLED screens, with good color contrasts. QLED also tends to be cheaper at larger sizes than other backlighting techs, meaning that QLED is the best budget-conscious choice when it comes to a new higher-end TV. QLED also tends to result in screens that can reach a higher level of overall brightness, which may be desirable depending on your screen needs.
OLED is “organic” LED. An OLED consists of organic materials that produce similar effects when current runs through them. But OLED displays work fundamentally differently than typical LED-lit LCDs.
LCD TVs rely on a backlight to shine through a stack of display materials to create an image. This puts them in a category called transmissive screens. OLEDs, however, are different. OLED screens consist of many tiny diodes that emit their own light, which lands them in a category called emissive displays. When an OLED display wants an area of the screen to show black, it simply turns off the pixels in that area, which creates much darker tones without concern for light bleeding through from brighter surrounding areas.
Mini-LED is similar to QLED, but the backlights get even smaller. These LEDs are so small they can be almost as small as a single pixel. QLEDs are significantly larger than one pixel, while OLEDs are the size of a single pixel.
Mini-LED represents the halfway point between QLED and OLED, taking the older tech and trying to approximate what the newer tech can do. Mini-LED offers noticeably better than QLED or typical LCD and it may be hard to discern a difference between the contrast on Mini-LED and OLED, as the Mini-LED diodes can get almost to the pixel level. The deep blacks that OLED promises are essentially available with Mini-LED.
You won’t be able to get the same pixel-level control over black levels as you would with OLED, but some Mini-LED TVs promise up to 3,000 backlight zones. It’s likely this difference is barely noticeable to the average consumer. Mini-LED scales to cost at a more expensive clip than QLED, and is essentially the “premium” version of that same base technology, at least for now until it becomes more widespread.
Expect to see some large variations in Mini-LED prices here at the beginning of its run in the TV world as companies try to nail down the sweet spot between price and performance when it comes to determining the number and type of backlight zones.
Backlight tech is just one of several things to consider when buying a TV. On the whole, OLED and Mini-LED TVs will produce attractive pictures, but there are some variables within the segments.

Shopping for a new TV is like wading through a never-ending pool of tech jargon, display terminology, and head-spinning acronyms. It was one thing when 4K resolution landed in the homes of consumers, with TV brands touting the new UHD viewing spec as a major marketing grab. But over the last several years, the plot has only continued to thicken when it comes to three- and four-letter acronyms with the introduction of state-of-the-art lighting and screen technology. But between OLEDs, QLEDs, mini-LEDs, and now QD-OLEDs, there’s one battle of words that rests at the core of TV vocabulary: LED versus LCD.
Despite having a different acronym, LED TV is just a specific type of LCD TV, which uses a liquid crystal display (LCD) panel to control where light is displayed on your screen. These panels are typically composed of two sheets of polarizing material with a liquid crystal solution between them. When an electric current passes through the liquid, it causes the crystals to align, so that light can (or can’t) pass through. Think of it as a shutter, either allowing light to pass through or blocking it out.
Since both LED and LCD TVs are based around LCD technology, the question remains: what is the difference? Actually, it’s about what the difference was. Older LCD TVs used cold cathode fluorescent lamps (CCFLs) to provide lighting, whereas LED LCD TVs used an array of smaller, more efficient light-emitting diodes (LEDs) to illuminate the screen.
Since the technology is better, all LCD TVs now use LED lights and are colloquially considered LED TVs. For those interested, we’ll go deeper into backlighting below, or you can move onto the Local Dimming section.
Three basic illumination forms have been used in LCD TVs: CCFL backlighting, full-array LED backlighting, and LED edge lighting. Each of these illumination technologies is different from one another in important ways. Let’s dig into each.
CCFL backlighting is an older, now-abandoned form of display technology in which a series of cold cathode lamps sit across the inside of the TV behind the LCD. The lights illuminate the crystals fairly evenly, which means all regions of the picture will have similar brightness levels. This affects some aspects of picture quality, which we discuss in more detail below. Since CCFLs are larger than LED arrays, CCFL-based LCD TVs are thicker than LED-backlit LCD TVs.
Full-array backlighting swaps the outdated CCFLs for an array of LEDs spanning the back of the screen, comprising zones of LEDs that can be lit or dimmed in a process called local dimming. TVs using full-array LED backlighting to make up a healthy chunk of the high-end LED TV market, and with good reason — with more precise and even illumination, they can create better picture quality than CCFL LCD TVs were ever able to achieve, with better energy efficiency to boot.
Another form of LCD screen illumination is LED edge lighting. As the name implies, edge-lit TVs have LEDs along the edges of a screen. There are a few different configurations, including LEDs along just the bottom, LEDs on the top and bottom, LEDs left and right, and LEDs along all four edges. These different configurations result in picture quality differences, but the overall brightness capabilities still exceed what CCFL LCD TVs could achieve. While there are some drawbacks to edge lighting compared to full-array or direct backlight displays, the upshot is edge lighting that allows manufacturers to make thinner TVs that cost less to manufacture.
To better close the local-dimming quality gap between edge-lit TVs and full-array back-lit TVs, manufacturers like Sony and Samsung developed their own advanced edge lighting forms. Sony’s technology is known as “Slim Backlight Master Drive,” while Samsung has “Infinite Array” employed in its line of QLED TVs. These keep the slim form factor achievable through edge-lit design and local dimming quality more on par with full-array backlighting.
Local dimming is a feature of LED LCD TVs wherein the LED light source behind the LCD is dimmed and illuminated to match what the picture demands. LCDs can’t completely prevent light from passing through, even during dark scenes, so dimming the light source itself aids in creating deeper blacks and more impressive contrast in the picture. This is accomplished by selectively dimming the LEDs when that particular part of the picture — or region — is intended to be dark.
Local dimming helps LED/LCD TVs more closely match the quality of modern OLED displays, which feature better contrast levels by their nature — something CCFL LCD TVs couldn’t do. The quality of local dimming varies depending on which type of backlighting your LCD uses, how many individual zones of backlighting are employed, and the quality of the processing. Here’s an overview of how effective local dimming is on each type of LCD TV.
TVs with full-array backlighting have the most accurate local dimming and therefore tend to offer the best contrast. Since an array of LEDs spans the entire back of the LCD screen, regions can generally be dimmed with more finesse than on edge-lit TVs, and brightness tends to be uniform across the entire screen. Hisense’s impressive U7G TVs are great examples of relatively affordable models that use multiple-zone, full-array backlighting with local dimming.
Because edge lighting employs LEDs positioned on the edge or edges of the screen to project light across the back of the LCD screen, as opposed to coming from directly behind it, it can result in very subtle blocks or bands of lighter pixels within or around areas that should be dark. The local dimming of edge-lit TVs can sometimes result in some murkiness in dark areas compared with full-array LED TVs. It should also be noted that not all LED edge-lit TVs offer local dimming, which is why it is not uncommon to see glowing strips of light at the edges of a TV and less brightness toward the center of the screen.
Since CCFL backlit TVs do not use LEDs, models with this lighting style do not have dimming abilities. Instead, the LCD panel of CCFL LCDs is constantly and evenly illuminated, making a noticeable difference in picture quality compared to LED LCDs. This is especially noticeable in scenes with high contrast, as the dark portions of the picture may appear too bright or washed out. When watching in a well-lit room, it’s easier to ignore or miss the difference, but in a dark room, it will be, well, glaring.
An OLED display uses a panel of pixel-sized organic compounds that respond to electricity. Since each tiny pixel (millions of which are present in modern displays) can be turned on or off individually, OLED displays are called “emissive” displays (meaning they require no backlight). They offer incredibly deep contrast ratios and better per-pixel accuracy than any other display type on the market.
Because they don’t require a separate light source, OLED displays are also amazingly thin — often just a few millimeters. OLED panels are often found on high-end TVs in place of LED/LCD technology, but that doesn’t mean that LED/LCDs aren’t without their own premium technology.
QLED is a premium tier of LED/LCD TVs from Samsung. Unlike OLED displays, QLED is not a so-called emissive display technology (lights still illuminate QLED pixels from behind). However, QLED TVs feature an updated illumination technology over regular LED LCDs in the form of Quantum Dot material (hence the “Q” in QLED), which raises overall efficiency and brightness. This translates to better, brighter grayscale and color and enhances HDR (High Dynamic Range) abilities.
And now to make things extra confusing, part of Samsung’s 2022 TV lineup is being billed as traditional OLEDs, although a deeper dive will reveal this is actually the company’s first foray into a new panel technology altogether called QD-OLED.

The Frame now offers the most realistic art viewing experience outside of a museum thanks to the anti-glare, low-reflection panel technology featuring an embossed, Matte Display. It also avoids fingerprints and smudges, allowing users to enjoy their favorite artwork in perfect condition. The Frame comes in sizes ranging from 32” to 85”.

Most modern computer monitors, and even televisions, have an edge-lit LCD display that’s fundamentally similar to the first such displays sold decades ago, but that’s not where the future is headed. The twin threats of Mini-LED and OLED want to conquer the world of PC displays for themselves.
The advantages of OLED add up to superior contrast and depth. You’ve likely noticed this when viewing an OLED television at your local retailer. High-quality content has an almost three-dimensional look, as if the display is not a flat panel but a window into another world.
Mini-LED improves on traditional edge-lit LCD displays by improving the backlight. The LCD panel itself, however, is much the same as before and retains some flaws common to the technology.
Display quality can shift significantly depending on viewing angle, and significant blur will be visible when displaying fast motion. Both problems are inherent to LCD technology. The liquid crystals do not block light uniformly, so the image looks different from different angles, and require a few milliseconds to respond to a charge, causing blur or ghosting in rapidly changing images.
OLED is different from LCD technology. There’s no liquid crystals to twist or move. Each pixel is an organic element that creates its own light when a charge is applied. The light is emitted in a relatively uniform pattern and can turn on or off extremely quickly, removing the viewing angle and motion performance issues of LCD entirely.
This problem is most often discussed in the context of burn-in or image retention. Burn-in happens when specific pixels on an OLED panel degrade differently from those around them, creating a persistent shadow in the image.
This explanation is backed up by the hardware you can buy today. OLED panels are available at reasonable prices in notebooks like the Dell XPS 13 and Samsung Galaxy Book Pro. OLED panels for monitors, on the other hand, are so expensive most manufacturers don’t even bother. The LG UltraFine 32EP950, which briefly went on sale this summer, retailed for $3,999.99.
This advantage will likely continue in the near future. OLED pricing is reliant on availability of OLED panels, which are not as widely produced as LCD panels. Companies looking to build Mini-LED displays can design the backlight somewhat independently of the LCD panel and choose panels as needed based on the panel’s capabilities and pricing.
OLED’s big break may come with the introduction of new fabs. Young says they will “lower costs significantly for 10-inch to 32-inch panels, giving OLED fabs the same flexibility as G8.5 LCD fabs, meaning the ability to target multiple applications from a single fab.” The first of these new fabs should start producing panels by 2024.
Affordable OLED seems alluring, but Wyatt champions a different approach. He believes the Micro-LED technology championed by Pixel Display will meld the strengths of LCD and OLED while ditching the weaknesses of both.
However, Micro-LED is a technology more relevant to the latter half of this decade. The more immediate fight will see OLED attempt to improve brightness and durability while Mini-LED pursues increasingly sophisticated backlights to mimic the contrast of OLED.

Oculus Go is using a customized LCD from Sharp Display, which has a 1920x3664 resolution, 72 Hz refresh rate. It has a partition backlight system and two separated display areas which correspond to a binocular lens.
Now LCD is the most common VR device screen on the market, and a few VR products use OLED screens and Mirco-OLED screens. Micro OLED is unfamiliar for VR players. Arpara 5K PC VR, the world"s first VR device, is using the micro-OLED display.
BOE responded to investors about the development of AR/VR display panels, saying that BOE has provided VR/AR/MR smart applications display solutions, including high PPI, high refresh rate of Fast LCD and ultra-high resolution, ultra-high contrast of Micro OLED (silicon-based OLED) and other representative display technology.
According to India"s latest report, Samsung"s Image Display Division purchased about 48 million panels in 2021 and shipped 42 million units. In 2022, meanwhile, it plans to purchase 56 million panels and ship 48 million units in 2022. The panels it purchases will be made up of 53 million OPEN Cell LCD TVs, 1 million QD OLED panels, and 2 million WOLED TV panels.
With the explosive growth of new energy vehicles and vehicle intelligence in 2021, in-vehicle display technology has also undergone a period of rapid development. First, end-users and OEMs have begun to pursue multi-screen, high-resolution, and large-size displays. And, secondly, major panel manufacturers have actively adopted diversification strategies based on their own particular strengths and adjusted their own layouts accordingly.

A backlight or backlit is a form of illumination that"s being used in LCD monitors. It is an internal source of white light that illuminates the LCD from the back of the display panel. For the past few years, manufacturers started to incorporate LED (light emitting diode) backlights in LCD screens. There are several advantages with this type of technology.
First is the durability of LED backlight. This type of monitor is encased in an acrylic case in order to help with light refraction between air and the light emitting component itself as part of its electronic circuitry, making it very hard to destroy. They are also very well-protected against shocks and vibrations. In terms of power consumption, you can save a lot of energy with this technology. This reduced power consumption can add up especially if you are in a working environment where several monitors are being used daily. Moreover, LED backlit monitors deliver a better and more accurate colour palette, resulting to excellent image quality. While this is not the only factor that contributes on the picture quality, it is definitely an important element.
iTech Company"s LED backlit LCD monitors also integrates various useful features including sunlight readability function, high contrast ratio, wide operating temperature, and optional touch screen systems. The brightness levels of our units range from800nits to 1500nits, giving you enough options to ensure visibility even when used under direct sunlight or in high ambient lighting conditions. For more info of our products, contact us through the given phone number or email.
Ms.Josey
Ms.Josey