anti-glare lcd panel in led backlight in stock
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*Estimated delivery dates- opens in a new window or tabinclude seller"s handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.Notes - Delivery *Estimated delivery dates include seller"s handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
There are many LCD screen manufacturers for the Laptop Industry. LCD screens have different resolutions, size and type and these screens are compatible as long as the resolution and connections are the same.
For this listing, we will ship you a brand new OEM Compatible LCD screen manufactured either by Samsung, LG, Chi Mei, Chunghwa, Sharp, or AUOptronics. For more information about each LCD manufacture please click here.
If you wish to know the make of the actual LCD that will be shipped to you, please contact us by phone with your order information between 10AM - 8PM EST (Monday – Friday).
NEC"s 90" Large Screen E905 delivers a cost-effective solution while maintaining the extensive feature set and high visual quality that"s expected with a commercial grade display. With its extremely large size, full external control and expanded connectivity, this display is the ideal solution for all boardroom, conference room and meeting room type of applications.
The Hisense U8H matches the excellent brightness and color performance of much pricier LCD TVs, and its Google TV smart platform is a welcome addition. But it’s available in only three screen sizes.
The Hisense U8H is the best LCD/LED TV for most people because it delivers the performance of a much pricier TV yet starts at under $1,000, for the smallest (55-inch) screen size. This TV utilizes quantum dots, a full-array backlight with mini-LEDs, and a 120 Hz refresh rate to deliver a great-looking 4K HDR image. It’s compatible with every major HDR format. And it’s equipped with two full-bandwidth HDMI 2.1 inputs to support 4K 120 Hz gaming from the newest Xbox and PlayStation consoles. Add in the intuitive, fully featured Google TV smart-TV platform, and the U8H’s price-to-performance ratio is of inarguable value.
Chief among the U8H’s many strengths is its impressive peak brightness. When sending it HDR test patterns, I measured an average brightness of 1,500 nits, with peaks just north of 1,800 nits (a measurement of luminance; see TV features, defined for more info). To put that into perspective, consider that the 65-inch version of our budget 4K TV pick (the TCL 5-Series) typically costs around half as much as the 65-inch U8H but achieves only around 30% to 40% of its brightness. On the other side of the coin, the 65-inch version of our upgrade pick (the Samsung QN90B) costs almost twice as much as the 65-inch U8H, but it achieves only nominally higher brightness. Adequate light output creates convincing highlights and image contrast and (when necessary) combats ambient light from lamps or windows. It is a necessity for any TV worth buying—especially if you hope to watch HDR movies or play HDR games—and the U8H simply outpaces most TVs in its price range (and some in the next price bracket up, too).
Key to this functionality is the U8H’s employment of mini-LED backlighting with local dimming, which allows this TV to produce very bright light while still maintaining satisfyingly deep black levels that are typically free of blooming (or light bleed that’s visible around bright objects against a dark backdrop). This not only ensures impressive image contrast, it also makes the U8H a viable choice for most rooms, whether they’re brighter than average or dimmed down like a movie theater.
That’s not to say the U8H has pixel-precise light control—it’s not an OLED TV, after all—but it does a terrific job most of the time. In fact, in our tests, the U8H bested last year’s upgrade pick, the Samsung QN90A, in certain scenarios: The intro to Guillermo del Toro’s Cabinet of Curiosities on Netflix features the filmmaker against a pitch-black backdrop. Though last year’s QN90A failed to maintain perfect control over dimming elements during this scene (the black backdrop brightened distractingly once a sufficient amount of brighter content appeared on screen), the U8H did not. (For the record, the newer QN90B also passed this test.) The U8H’s mini-LEDs also help the screen look uniformly bright: Although the U8H is still not as good as an OLED TV in this respect, it shows very little indication of being a backlight-driven display, even during tricky scenes with large swaths of dim lighting.
The U8H’s brightness, black-level integrity, and local-dimming abilities make this an excellent TV for watching HDR content. The U8H is capable of playing HDR content in all of the major formats (HDR10, HDR10+, Dolby Vision, and HLG), but when it comes to impressive HDR, what’s under the hood is much more important than format compatibility. The most crucial thing for good HDR is high brightness and deep color saturation, and the U8H’s quantum dots achieve the latter. It’s not as simple as just having quantum dots, however: While many TVs (even the budget options) have quantum dots nowadays, what is often not taken into account is that brightness directly affects color saturation. For example, both the 2022 TCL 6-Series and the Hisense U8H are equipped with quantum dots, mini-LED backlights, and local dimming. But because the U8H is notably brighter than the 6-Series, it also achieves a higher total color volume. During our color-volume testing, the U8H exhibited color ranges at more than 100% of the DCI-P3 color space (the range of color needed to properly display HDR content), and it is capable of roughly 10% more total color volume compared with the 6-Series.
What does this mean in real-world terms? It means that the Hisense U8H truly excels as a modern 4K HDR TV, whether you’re watching the latest episode of Rings of Power or playing Overwatch 2. While watching HDR content side by side on the U8H and on our upgrade pick, the Samsung QN90B, I was truly surprised by how similar they looked at times, given that our upgrade pick is much more expensive. That said, though the U8H achieves impressive results where light output and color volume are concerned, it also exhibited some occasional video processing and upscaling issues (see Flaws but not dealbreakers), which videophiles and AV enthusiasts may take umbrage with. But in general, the picture quality punches well above its weight, metaphorically speaking.
And thanks to Hisense’s inclusion of Filmmaker Mode, it’s easy to rein in the U8H’s brightness abilities for a more-subdued and filmic experience in a darker room. Our measurements revealed that this mode has a very accurate white balance, mostly accurate colors (green is a bit oversaturated, but not egregiously so), and a perfect “dark room” gamma (which controls how quickly the video signal transitions from dark to light). Additionally, the TV’s 120 Hz refresh rate means it can play Blu-ray discs at 24 fps without the judder that’s usually present on TVs with 60 Hz refresh rates.
The TV’s higher refresh rate also reduces motion blur in faster-moving sports and allows for smoother, more stable motion in games. Two of the four HDMI inputs support 4K gaming at 120 Hz. The U8H measured low input lag while playing in 4K resolution, and Hisense’s helpful GameZone setting in the picture menu allowed me to confirm the presence of 120 Hz playback and variable refresh rate during games.
The onboard Google TV smart platform is another feather in this TV’s cap. As usual, however, it will be much more satisfying to use if you have a Google account and already take advantage of Google’s connected services, like Photos. The experience of navigating the TV’s smart features—scanning QR codes to sign into apps, using the onscreen keyboard, and browsing your Google Photos to set a photo as a screensaver—was very satisfying in terms of responsiveness and speed. Powering on the TV and booting into an app took just seconds. The included Bluetooth remote is also equipped with a handy “Hey Google” button, allowing you to pull up Google’s assistant and use voice commands to search for content or set a reminder. If you have multiple users with their own Google accounts, you can designate separate profiles (attached to a Gmail account) so that each user can customize the experience to their liking, as well as access their own Google Drive or Photos. While some reviewers have reported instances of momentary freezing while using the U8H’s platform, I didn’t personally experience any instances of slowdown that were egregiously worse than with any other smart-TV platform.
In terms of design, the Hisense U8H is not as svelte as our upgrade pick, but it’s plenty sturdy and doesn’t look or feel cheap. Two narrow, metal feet jut out from beneath the panel and steadily hold the TV. They can be attached in two separate spots, either closer in toward the middle of the panel or out toward the edges, to account for different-size TV stands. The feet are also equipped with cable organization clasps—a nice touch for keeping your TV stand free of cable clutter. Though the TV is primarily plastic, its bezels are lined with metal strips, providing a bit more durability in the long run. I moved it around my home, and it was no worse for wear, but we’ll know more after doing some long-term testing.
The Hisense U8H has some difficulties with banding, or areas of uneven gradation, where transitions that should appear smooth instead look like “bands” of color (sometimes also called posterization). Like many current 4K HDR TVs, the U8H uses an 8-bit panel rather than a 10-bit panel, which affects the color decoding and color presentation process. This is usually relevant only with HDR video and games. When playing games on the PlayStation 5 and Xbox Series X, I saw a few instances where the content wasn’t rendered correctly and displayed ugly splotches of color on the screen. However, this almost always occurred during static screens (such as a pause menu or loading screen); I rarely spotted it during actual gameplay. Hisense has stated that it would address the problem in a future firmware update, but at the time of writing it was still present. This is a flaw that may give dedicated gamers pause, but we don’t consider it to be a dealbreaker for most people.
I also saw occasional instances of banding with TV shows and movies, though they were few and far between. The U8H isn’t the best at upscaling sub-4K content, so videos with a 1080p or lower resolution looked a little soft. You can get better overall video processing and upscaling by springing for our upgrade pick (this is one reason it’s more expensive, after all).
Although the UH8 TV has four HDMI inputs, only two of them are fully HDMI 2.1–compatible. And one of those is designated as the eARC input (intended as an audio connection for a soundbar or AV receiver connection). So if you’re pairing an external audio system with the U8H, you may have only one input remaining that can support HDMI 2.1 features like 4K 120 Hz playback, variable refresh rate, and auto game mode; this could be a dealbreaker if you own more than one current-gen gaming console. If you’re in that boat, you may want to splash out some extra dough for our upgrade pick. Additionally, folks using pre-HDMI source devices—like the five-cable composite connector with green, red, blue, and red/white audio inputs—should be aware that this TV requires an adapter to allow those devices to connect, and an adapter is not included in the box.
Finally, like most TVs that use vertical alignment (VA) LCD panels, the U8H has a limited horizontal viewing angle, which may be a bit annoying if you’re hoping to entertain a large crowd. Our upgrade pick uses a special wide-angle technology to address this.
If you’re watching in a darker room and want the most accurate picture you can get—preserving the director’s intent—select the U8H’s Filmmaker Mode as your picture mode. In a brighter room, we recommend the Theater Day picture mode. In either case, you should go into the backlight settings, disable the automatic light sensor, and set the backlight to your personal preference. This is true whether you’re watching SDR or HDR content.
For gaming, use the game picture mode (the TV should switch into this mode automatically when paired with the newer game consoles), and then go into the Gaming submenu to make sure the right settings (VRR) are enabled. We recommend leaving the HDMI setting in “auto,” unless you notice that your game console is incorrectly identified.
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Plasma TVs contain tiny pockets of gas, and when a voltage is applied to them, they turn into a plasma state. The voltage then strikes the mercury within the plasma to emit ultraviolet (UV) rays, which pass through phosphor cells to produce an image. Each pixel in the TV contains three phosphor cells: red, green, and blue, and these three colors combine to produce a color. Essentially, plasma TVs don"t require a backlight, and each pixel is self-emissive as it produces its own light.
Unlike plasma TVs, LCD TVs use a backlight. Initially, LCD TVs used Cold-Cathode Fluorescent Lamp (CCFL) as their backlight. These are long tubes that are placed horizontally across the screen behind the LCD panel. When the light is turned on, it applies a voltage to the pixels, which makes them rotate a certain way to allow light through and produce an image. When it wants to display black, the pixels are rotated to create an opaque screen so that light doesn"t get through. This is what makes them different from plasma TVs because each pixel isn"t self-emitting.
Light-Emitting Diode (LED) TVs are the same as traditional LCD TVs, but instead of using CCFL backlights, they use many smaller LED lights. It produces an image the same way as a regular LCD TV because it still uses an LCD panel, but it has more control over the backlighting. The LEDs can be placed along the edges, which is called edge-lit LED, or all over the back panel, which is either called direct LED or full-array backlighting. You can see the differences between LCD and LED TVs below.
It"s also important to note LED is simply a marketing term used by manufacturers to describe their backlight. They"re still technically LCD TVs, but since calling them LED is so common now, we even label them as LED, and we"ll continue to do so throughout this article.
Plasma and LED TVs each present their own advantages and disadvantages in terms of picture quality, price, build, and availability. It"s generally thought that plasma produces a better picture quality due to their superior contrast ratio, but LED TVs became more popular because of other factors, like a lower cost and greater availability.
Below you can see the differences in picture quality between two older TVs from 2013. It"s clear the plasma was better at the time, but LED TVs have also gotten better since then, so picture quality has greatly improved.
Contrast ratio was one of the main advantages and selling points of plasma TVs. Since each pixel emitted its own light, it simply turned itself off when it wanted to display a black image. This allowed the TV to display very deep blacks, but because there was always a bit of charge left in the plasma, it still wasn"t a perfect black level.
On the other hand, LED TVs can"t achieve a perfect black level because the backlight is always on. However, technology has evolved to greatly improved the contrast of LED TVs, even to the point where it"s also as good as what plasma once was. There are two main types of LCD panels in TVs: Vertical Alignment (VA) and In-Plane Switching (IPS). VA panels produce a better contrast than IPS, and high-end TVs also have local dimming features that turn off certain zones of the LED backlights. Still, you won"t get a perfect black level, but most modern LED TVs produce such deep blacks that even in a dark environment it looks like perfect black levels. For reference, plasma TVs had a max contrast of about 4,000:1, according to DisplayMate.com, but some recent LED TVs can reach a contrast of over 20,000:1 with local dimming enabled, like the Samsung QN90A QLED.
LED TVs are a clear winner here, and it"s one of the reasons why they surpassed plasmas in terms of popularity. LED TVs get significantly brighter, so they can fight glare from light sources easier. Additionally, plasma TVs had to use glass on their front panel, which caused intense glare if you had any lamps or windows around the TV. LED TVs can use a coating on their glass panel to help reflect and diffuse light, making it a better choice for well-lit rooms.
Plasmas were designed for dark-room viewing, but since most people don"t have dedicated home theater setups and often watch with a few light sources around, they weren"t that useful. As you can see below, the plasma TV had pronounced reflections, to the point where it"s even hard to see the image, and instead you"re watching yourself watch TV. Reflections are still noticeable on an LED TV, but at least you can see the image.
Pixels on plasma TVs emitted light in all directions, creating extremely wide viewing angles, much better than most LED TVs. This means that the image remained accurate when viewing from the side, which was great for watching sports or a show with a few people. Out of the two main panel types for LED TVs, IPS has wider viewing angles than VA panels, but it"s still not as good as plasma.
TV manufacturers have tried different technologies to improve viewing angles on VA panels. Samsung has an "Ultra Viewing Angle" layer, and Sony uses their "X-Wide Angle" technology to increase the viewing angles, both at the cost of a lower contrast ratio. It"s still not as good as plasma, but they"re wide enough for watching TV in a fairly large seating area.
Below you can see the differences in viewing angles between a plasma and a VA panel. These TVs were tested on different test benches, so you shouldn"t directly compare the videos, but we included them to give you an idea of how each technology affects the viewing angle.
Plasma TVs were great for motion handling, like with sports and video games due to their quick response time. Since each pixel had to retain a certain charge at any given moment, it was ready to display an image almost instantly. This meant fast-moving scenes looked crisp and smooth, with no motion blur behind them. However, for LED TVs, it can be a toss-up; some lower-end models have a slow response time that causes motion blur, while other high-end TVs have a really fast response time.
Some LED TVs also use Pulse Width Modulation to dim their backlight, and this causes the backlight to flicker, which may create image duplication in fast-moving scenes. This can be particularly annoying, especially if you"re watching sports with fast-moving content.
In terms of refresh rate, plasma TVs had a higher internal refresh rate, up to 600Hz, while LED TVs tend to be 60 or 120Hz. However, the refresh rate depends on the content, and since most content doesn"t go past 120 frames per second, having a higher refresh rate TV isn"t very useful.
Screen uniformity is another area where plasma TVs win. Since they didn"t have a backlight, they could evenly control each pixel. LED TVs can suffer from uniformity issues, like darker edges or Dirty Screen Effect in the center, because the backlight output may not be even across the panel. However, this is only really noticeable when watching content with large areas of uniform color, like a hockey or basketball broadcast, or if you"re going to use the TV as a PC monitor. It shouldn"t be noticeable with other types of content, and since uniformity can vary between units, you shouldn"t worry about it too much.
One of the reasons plasma TVs didn"t last too long at the top of the TV world is because of their risk of temporary image retention and permanent burn-in. Plasmas lose their brightness over the years, and in the worst case, would have permanent burn-in with certain colors staying on the screen, as you can see here. Even after watching content with static elements, like the news, for an extended period, the outline of the static elements would stay on the screen for a few minutes after changing the channel.
These problems are particularly annoying, especially if you watch a lot of TV. There was no way to help reduce this issue, and after a few years, depending on how much you used the TV, your plasma would need replacing. LEDs don"t suffer from this same permanent burn-in, so you won"t have to worry about replacing your LED TV down the line because of burn-in.
Due to their different technologies, LED and plasma TVs are built differently. Plasma TVs tended to be heavier and thicker because the panel itself was larger. Although plasmas were the first flat-screen TVs available at a consumer level at the end of the 20th century, LCD TVs quickly became even thinner, easier to package, and lighter to carry from the store to your house. These days, LED TVs are as thin as 1", like the Samsung QN85A QLED.
Plasma TVs also required a lot of power to work and tended to get very hot. With the growth of environment-friendly consumer practices, it became clear LED TVs would win out since they required a lot less electricity, and in a way were better for the environment.
Both plasma and LED TVs were made with larger sizes, but LED had a slight advantage because they were also made in displays smaller than 32 inches, like with monitors. Although small TVs are rare now, you can still find a basic 28 or 32 inch TV for a kitchen or bedroom with an LED panel. Plasma TVs weren"t made that small. LED TVs also cost less to produce and are cheaper on the market, so at the end of the day, the lower cost drove LED sales.
When 4k TVs started to become the norm over 1080p and 720p TVs in the mid-2010s, manufacturers started to produce 4k LED TVs, while plasma TVs were stuck at 1080p. This presented a major advantage for LED TVs, as a higher resolution helps create a crisper image, and this essentially was the nail in the coffin for plasma TVs. Since manufacturers were focused on making 4k LED TVs, plasma TVs became less available, and by 2014, Panasonic, LG, and Samsung all stopped their plasma production. LED TVs surpassed plasma sales in 2007, and they haven"t looked back since.
There were a few other problems that contributed to the decline of plasma TVs. First of all, plasma TVs didn"t work at high altitudes because of the change in air pressure with the gasses inside. They would create a buzzing noise, and the image wouldn"t look the same, so this could have been problematic if you lived at a high altitude. LED TVs can be used at any altitude; you shouldn"t use them in extreme cold or extreme heat, but this is standard practice for any electronic, and temperature is easier to control than your altitude. Also, plasma TVs emitted a radio frequency that could have interfered with other devices around, like if you had a radio in the same room. Each of these issues are simply inconvenient for most people.
The simple answer is yes, but it doesn"t mean you should go out tomorrow and buy a new TV just because you read this article. If you aren"t experiencing any issues with your plasma, then you probably don"t need to replace it right away. However, if you notice your plasma is starting to show some signs of permanent burn-in, it"s probably a good idea to get a new TV before the burn-in becomes worse.
There could be other advantages if you upgrade your TV, like technological advancements and a higher 4k resolution. Modern TVs come with a built-in smart system, which isn"t something that most plasmas had, and this allows you to directly stream your favorite content without the need for an external streaming device. As mentioned, LED TVs aren"t very costly, and you can easily find the best 4k TVs for under $500.
At the same time that plasma TVs met their end, OLEDs grew from the ashes of their predecessor. After LG released the first commercially available 55 inch OLED in 2012, it soon competed with LED TVs. OLED, which stands for Organic Light-Emitting Diode, is different from plasma, but shares many of the same characteristics, while also avoiding some of plasma"s downfalls.
OLEDs use self-emissive pixels, but what sets them apart is how the pixels completely shut off, creating an infinite contrast ratio and perfect black uniformity. This is an improvement from plasma because it was never able to reach those perfect blacks. OLEDs also have wide viewing angles and a near-instant response time like plasmas. Sadly, they don"t get extremely bright, but they"re still better for well-lit rooms than plasma because they get a bit brighter and have much better reflection handling. Also, OLEDs have the same burn-in risk as plasma, but this only happens with constant exposure to the same static elements, and we don"t expect it to be a problem for people who watch varied content.
Another advantage for OLED is how thin they are, especially compared to plasma, and they aren"t as heavy. For example, the LG GX OLED is a TV designed to sit flush against the wall and it"s only 0.94" thick!
Compared to LED competitors, OLEDs are much more costly, and even though they offer superior picture quality, LEDs are still the favorite. Also, LED TVs are available in smaller sizes, while the smallest OLED TV we"ve tested is 48 inches. LEDs are generally the better choice for well-lit rooms since they still get much brighter, but OLEDs are a fantastic choice for dark room viewing.
Although plasma TVs once dominated the TV market for a short time at the turn of the 21st century, their disadvantages outweighed their advantages, and LED-backlit LCD TVs soon held the market share of sales. There were a few reasons for this, like burn-in issues, low peak brightness, and a thick and heavy design compared to LED TVs. Despite plasma TVs" superior overall picture quality, improved contrast, and very quick response time, it wasn"t enough to convince consumers to keep buying them once 4k LED TVs became readily available. If you still have a plasma, it"s likely you"ll need to replace it within the next few years, and you"ll probably buy a new LED TV.
It seems as if modern displays have all kinds of different labels: high definition, 3D, smart, 4K, 4K Ultra, the list goes on. The two most common labels are LCD and LED. What’s the difference between the two? Is there a difference? And does this difference make one or the other preferable for certain types of activities like gaming or graphic design?
All LED monitors are LCD monitors. But not all LCD monitors are LEDs. Kind of like all eagles are birds, but not all birds are eagles. While the names might be confusing to those wading through specs to find the best monitor, once you break it down it’s easier to understand than you think.
We’ll explain the tech and the naming conventions, and then highlight some HP monitors that might be the perfect fit for your needs. Let’s figure out exactly what LCD and LED monitors are and how to pick the right one for you.
Both types of displays use liquid crystals to help create an image. The difference is in the backlights. While a standard LCD monitor uses fluorescent backlights, an LED monitor uses light-emitting diodes for backlights. LED monitors usually have superior picture quality, but they come in varying backlight configurations. And some backlight configurations create better images than others.
Until 2014, plasma displays were the most commonly manufactured displays. But then the LCD took over. LCD stands for liquid crystal display. We’ll go over what that means in a minute. But first, it’s important to note that an LED also uses liquid crystals, so the name is somewhat misleading. Technically, an “LED monitor” should really go by the name, “LED LCD monitor.”
First, let’s go over how LCD and LED monitors utilize liquid crystals. The science behind this stuff features an incredibly complicated mix of optics, electrical engineering, and chemistry. But we’ll explain it in layman’s terms.
The key term here is “liquid crystal.” In high school, you might have been taught that there are three states of matter: solids, liquids, and gases. But there are some substances that are actually a strange blend of different states. A liquid crystal is a substance that has properties of both a solid and a liquid. When you get to the upper tiers of science, you begin to discover that everything you once knew is wrong.
Typically, the molecules in a liquid crystal are bunched up in a very dense and unstructured arrangement. But when the liquid crystal is exposed to electricity, the molecules suddenly expand into a very structured, interconnected shape[1].
Pixels are the basic building blocks of a digital image. A pixel is a small dot that can emit colored light. Your display is composed of thousands of pixels, and they’re in a variety of different colors to give you your computer interface and the webpage that you’re currently reading. It works like a mosaic, but each individual piece is much less noticeable.
LCD monitors have backlights behind the screen that emit white light, and the light can’t pass through the liquid crystals while they’re in their liquid arrangement. But when the pixel is in use, the monitor applies an electric current to the liquid crystals, which then straighten out and allow light to pass through them[2].
Every pixel has three separate backlights which can shine through the red, blue, or green color filter – that’s how a pixel can emit a specific color.
Standard LCD monitors employ “cold cathode fluorescent lamps,” also known as CCFLs as backlights. These fluorescent lights are evenly placed behind the screen so that they deliver consistent lighting across the display. All regions of the picture will have similar brightness levels.
LED monitors don’t use fluorescent lamps. Instead, they use “light-emitting diodes,” which are extremely small lights. There are two methods of LED backlighting: full-array backlighting and edge lighting.
With full-array backlighting, the LEDs are placed evenly across the entire screen, similar to an LCD setup. But what’s different is that the LEDs are arranged in zones. Each zone of LED lights can be dimmed (also known as local dimming).
Local dimming is a very important feature that can dramatically improve picture quality. The best images are ones that have a high contrast ratio; in other words, images that have both very bright pixels and very dark pixels simultaneously.
When there’s an area of the picture that needs to be darker (a night sky, for instance), the LEDs in that region of the picture can be dimmed to create a truer black. This is not possible on standard LCD monitors, where the entire picture is lit evenly throughout.
There are no local dimming capabilities in edge-lighted displays, so they can’t create pictures that are as high-quality as those created by full-array LEDs. However, edge lighting enables manufacturers to create extremely thin displays that don’t cost as much to produce - and which are better for a tight budget.
When it comes to picture quality, full-array LED monitors are almost always superior to LCD monitors. But bear in mind that only full-array LEDs are superior. Edge-lit LEDs may actually be inferior to LCD monitors.
A full-array LED monitor should be your number one choice for gaming. Steer clear if its edge lighting. The problem with edge lighting is that you’ll have fewer optimal viewing angles with which to play games. That’s not an issue if you prefer to sit directly in front of the screen while you’re gaming. But if you like to kick back in your chair or view from different angles, you’ll find that an edge-lit LED loses visibility as you move away from the center viewing angle.
But even if you play while you’re directly in front of the monitor, edge-lit LEDs have more issues with glare than full-array LEDs do. That’s because of the uneven lighting (very bright around the edges, darker as you approach the center of the display). Because the pixels are evenly lit, LCD monitors tend to have better viewing angles and anti-glare than edge-lit LEDs.
Edge-lit LEDs do have two big advantages. If you have a very tight space in which to fit your monitor, you’ll like having an edge-lit LED because they’re usually thinner than the other types. They’re also less expensive to manufacture, which make them easier on the wallet.
When you’re shopping for a new display, don’t forget to review all of its specs. While the backlighting type is important, you should also take the resolution and refresh rate into account.
Refresh rate refers to how quickly your monitor updates the display with new information from your computer’s GPU. If you’re a gamer, it’s important that you get a monitor with a very fast refresh rate (30 Hz to 60 Hz) so you won’t suffer from screen tearing - a nasty visual effect that happens when your monitor can’t keep up the pace with the GPU.
Because LED monitors create better pictures than LCD monitors, nearly all of HP’s displays are built with LED backlights. When you’re browsing through the HP LED monitors, you might notice that some of them are equipped with either “IPS” or “AHVA” technology. These refer to the types of liquid crystal panels that are used. Both are fantastic, although they have some minor differences:
You’ll also see that some monitors have “TN” LED backlights. This is the oldest form of liquid crystal technology. It’s still very effective, but TN panels are typically used in small, work-oriented monitors that are made to be mounted or used in the field.
HP OMEN gaming monitors are built for the power PC gamer. One of the best gaming monitors for your rig is the HP OMEN 32 32-inch display. This LED monitor has VA-type panels, which help give it a fast refresh rate that’s perfect for high-performance gaming.
If you’re a digital illustrator, video editor, photo editor, or special effects wiz, you should give the HP EliteDisplay S270n 27-inch 4K micro edge monitor a look. When you’re creating digital art, you need the most expansive resolution and highest-quality color production possible, and that’s what you’ll get with this IPS-equipped monitor. The micro edge screen makes it easy to use dual monitors, but the 27-inch screen alone gives you a wide interface to work on.
If you’re a business person, try one our HP EliteDisplay monitors, like the HP EliteDisplay E243 23.8-inch monitor. The IPS LED display is gorgeous and will give you a crisp and clear picture no matter what software you’re using. The micro edges make it perfect for a dual monitor setup, and the 23.8-inch size is wide, but not too large to accommodate a second monitor or to fit into tighter workstations.
There are some up-and-coming technologies that are making LED displays even better. OLED and QLED displays are bound to become more commonplace in the future.
“OLED” stands for “organic light-emitting diode.” What makes an OLED unique is that each pixel has a light source that can be individually shut off. On an LED monitor, the only way to keep a pixel from emitting light is to keep the liquid crystal closed. It’s effective, but not perfect - a small portion of light will always seep through. On an OLED monitor, each pixel’s light can be entirely shut off so no light at all will emanate through the liquid crystal. These means you can get truer blacks, which means deeper contrast ratios and better image quality.
There are two additional advantages. First, OLED monitors can be made even thinner than LED monitors because there’s not a separate layer of LEDs behind the pixels. Second, these monitors are more energy efficient because the pixels will only draw power when their light is turned on. One of the downsides, though, is that pixel burn-in will be more noticeable since some pixels will inevitably be used more than others[4].
“QLED” stands for “quantum light-emitting diode.” In a QLED monitor, each pixel has a “quantum dot.” Quantum dots are tiny phosphor particles that glow when you shine a light upon them[5].
Why would you need a glowing particle over each pixel? Because LEDs aren’t very good at emitting bright light. The brightest color is white. But an LED doesn’t emit white light – it emits blue light. Each LED is given a yellow phosphor coating to make it appear less blue and more white, but it’s still not true white. The “blueness” of LEDs negatively impacts the red, blue, and green colors on LED displays. LED monitors have automatic features that adjust the RGB colors to compensate for the blue light, but it can’t compensate for the weaker light intensity.
That’s where the quantum dots come in. The pixels are overlayed by a sheet of red and green quantum dots (there is no blue because blue light is already being emitted by the LED). When the light shines through the liquid crystals, the quantum dots glow, and you’re given a bright, vivid, and lovely spectrum of RGB colors.
Displays are a complicated science, right? But next time you’re shopping for monitors at the store or on our HP Store site, you’ll be a true expert and will be able to pick out exactly the right display for you.
In the July 12th edition of the Wall Street Journal, Walter Mossberg reviewed two new laptop computers, the Dell M1330 and the Toshiba Portege R500. In describing the R500
The Sony VAIO TX line of laptops uses LEDs as does their TZ line, due to be released very soon. Sony too, claims that LEDs offer increased brightness and decreased power consumption. In addition, they claim that their LED lit screen offers better colors.
For more than 20 years Alfred wrote for PC Magazine, and was their first Lead Analyst for Business Displays. He is a member of the Society for Information Display and the editor and publisher of HDTV Almanac, a web site with news and commentary about HDTV and related topics.
[insert your own dilithium joke here]. Rather "the molecules move in response to electrical fields, and are used as a shutter to block the light." I was surprised how inefficient the technology is. An LCD screen blocks 95% of the backlight, even when it"s showing a full white screen.
Traditionally, Alfred said, the backlight source behind the crystals have been cold-cathode fluorescent lamps (CCFL). The use of LEDs in laptop screens is relatively new. According to Alfred, LEDs "already are commonplace in mobile devices such as GPS receivers, cell phones, and PDAs ... the first desktop monitors probably appeared within the past couple of years. Sony had an LCD TV with LED backlights a couple of years ago. I expect that laptops were the last to get the technology."
With Sony, Toshiba and Apple, the cost of the LED screen is a hidden component of the total price. But these machines aren"t cheap. As of July 22nd, the least expensive pre-configured Toshiba Portege R500 was $1,999 and the Sony TZ line started at $2,199.99 (think of it as $2,200). The 15.4 inch Macbook Pro started at $1,999.
Toshiba claims that in one configuration the Portege R500 is "...the world"s thinnest widescreen 12.1 inch notebook PC with an integrated DVD-SuperMulti drive..." Dell claims their M1330 laptop with the optional LED screen is the thinnest laptop computer equipped with a 13.3 inch screen. The Sony VAIO TZ machines are less than an inch thick, but only if measured at the narrowest point. At the highest point, they are 1.17 inches.
Alfred confirmed that LEDs are indeed thinner and therefore the screens can be made thinner. And, they weigh less than cold-cathode fluorescent lamps.
We can see this in the M1330. According to Dell, the LED display "starts at 3.97lbs and is 0.87 inches thick compared to the standard display which starts at 4.28lbs and is 0.97 inches thick." The difference in weight and thickness seem, to me, to be small, but, I suppose if you frequently carry a laptop computer, then perhaps every little bit helps.
Mr. Mossberg gives the impression that by their very nature LEDs save power. Not true, according to our expert. Alfred pointed out that "At present LEDs generally draw more power and produce more heat than CCFL designs."
So what is the basis for the claimed power savings? It turns out that the number of LEDs in a screen varies. If the number is low enough, less power is needed and less heat is generated. With a small enough number of LEDs, Alfred said you can "probably save power compared with a CCFL design. This can be used to give either a longer battery life, or to reduce the battery weight and thus get a lighter weight design overall."
I couldn"t find anything from Sony, Toshiba or Apple about the number of LEDs in their screens. But in describing the M1330 Dell says "Our optional LED display uses 32 tiny, white LEDs ..." According to Alfred, "32 is a relatively high number for a small screen. Some large HDTV panels using high brightness LEDs could use that count or less for a panel with 8 or 10 times the surface area."
So, if the relatively high number of LEDs means increased heat and no power savings, why does Dell use so many? Alfred explains that LED screens "need a sophisticated lightpipe and diffuser to spread the light evenly behind the LCD panel. The fewer LEDs you use, the more difficult the diffusion process becomes."
As to whether LEDs are brighter, Toshiba claims this is true, but offers no specific numbers. Sony claims "incredibly high brightness levels" and the specs for the screen list it at 11.1 candelas (trust me, you don"t want to know the exact definition of a candela). The point is that Sony does not offer the candela ratings for their CCFL screens as a point of comparison.
The owners manual for the Dell M1330 shows the LED panel to be 36% brighter than the CCFL panel. Specifically the luminance of the LED screen is 300 cd/m² vs. 220 cd/m² for CCFL (and no, I can"t explain what cd/m² means).
Sony is the most aggressive in making claims about the better colors in their LED screens, using the terms "brilliant", "amplified" and "true-to-life" to describe them. Toshiba says that indoors, "the LED backlit display produces rich color saturation." I couldn"t find anything from Dell that mentioned better colors.
Alfred said it is possible that "LEDs can offer better color than CCFL, though advances in CCFL phosphor technology are rapidly diminishing this advantage."
A glossy screen suffers from glare, but produces more vibrant colors. Each laptop vendor has their own marketing term for glossy screens, Apple is the only company I"ve seen that actually uses the word glossy. A matte finish may be described as anti-glare or anti-reflective.
I didn"t see any marketing material from a laptop manufacturer that mentioned the expected lifespan of LEDs vs. CCFLs. But, a company that manufacturers LEDs did claim they last longer than CCFLs. When I ran this by Alfred, he said:
Alfred estimates the market share of LEDs at less than five percent, but he expects them to become more common as costs come down. DigiTimes reports that laptop and panel vendors expect that LEDs will be used in about 7% of laptop screens next year (See Nearly 100% of 10-inch-and-smaller LCD panels using LED backlight by Susie Pan and Emily Chuang, July 23, 2007). They estimate that LEDs will be used in 3-5% of laptop computers this year.
To date, LEDs have been popular mostly in smaller displays. In part this is because smaller screens use fewer LEDs which lowers the price differential over CCFL. The DigiTimes article reports that most LCD screens 10 inches and under use LED backlighting. The Sony TX and TZ screens are 11.1 inches, the Toshiba R500 screen is 12.1 inches and the Dell M1330 LED screen is 13.3 inches. The Apple Macbook Pro has the only available 15 inch screen using LEDs, but Apple appears to be having supply problems with them.
Alfred also mentioned that "environmental concerns about heavy metals in the CCFLs" may help to popularize LEDs. Apple seems to be the only laptop vendor using environmental concerns in their marketing. They tout their LED lit screens as being "mercury-free" and the company has long term plans to eliminate mercury from all their products.
Update July 29, 2007: Updated with a direct comparison between the brightness rating of the two screens offered by Dell for the M1330 (from the Owners Manual).
I bought a MacBook Pro in August 2011 (15 inch 2.0 Ghz, Quad Core i7 with Anti-glare Widescreen option.) - the Apple store lists MacBook Pros (15 and 17 inch models) to have an LED backlit screen, however, when I check the display information in About This Mac section - it states that my notebook has an LCD screen. I opted for the Anti-glare widescreen option, not sure if this option affects the type of screen (LCD v LED). But my question is, shoud I have gotten an LED screen or not? Also, if not, then does anyone know when Apple switched to providing LED screens as a default option for the 15 and 17 inch mid 2011 MacBook Pro models.
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With their vibrant colors and relatively constant picture appearance from multiple angles, IPS displays are suitable if your focus is on accuracy. When you can"t afford the pricey nature of these monitors, LEDs present a budget solution.
Not only do you spend less when shopping for LED displays, but you also spend less in terms of power uptake. Thanks to their less demanding operation, you also don"t have to worry about overheating issues.
IPS gaming monitors provide a number of advantages over other technologies, such as TN and VA panels, including superior image colors, despite the fact that LED panels are ideal for competitive gaming.
The benefits of using LED TVs are minimal energy consumption, a long-lasting backlight with pictures being bright. IPS displays offer more image accuracy and have better color reproduction in small viewing angles. In short, when it comes to LED vs IPS, former are cheaper, though the advantage of an IPS screen is better picture quality. Having said that, Samsung"s Quantum Dot technology could boast of dramatically enhanced color compared to IPS panels.
Although LED panels are excellent in competitive gaming, IPS gaming monitors have various tricks, like better image colors than other technologies, including TN and VA panels (see VA panel vs IPS). If you want to play while getting the most accurate color depiction, choose IPS and make sure to go over our review of the best 32-inch gaming monitors, including this affordable Dell gaming monitor.
What"s more, In-Plane Switching monitors maintain color consistency even when looking at them from extreme angles. If you prefer playing multiplayer games with your friends, the maintained picture precision across an extensive sitting arrangement is essential. Apart from picture, sound is also crucial to gamers, as monitors with speakers gain more and more popularity.
LED and IPS monitors (see also QLED) have excellent attributes with disadvantages as well. Before looking at the differences of screens featuring the two technologies, here is a look at the LCD (Liquid Crystal Display) technologies and also a LED vs LCD comparison.
LED (Light Emitting Diode) is a type of backlight technology in which the pixels light up. Many people confuse the difference between LED and LCD displays.
An LED monitor is a type of LCD monitor, and while both utilize liquid crystals for picture formation, the difference lies in LEDs featuring a backlight.
Notably, some IPS displays incorporate LED technology. Some reasons why some brands produce IPS displays infused with LEDs are the resultant sleekness and compactness.
The benefit of using LED panel technology is how bright the LED displays are while still maintaining an efficient energy consumption lower than other screen technologies.
On the other hand, an LED monitor shows less reliability and accuracy in color contrast. You also get a limited viewing angle meaning that you"ll only get the best quality when sitting directly in front of the display.
Monitor response times refer to the durations screens take to adjust from one color to the next. Response time differences are more conspicuous when playing fast-paced titles like CS: GO, Fortnite, and Battleground.
If you need LCD monitors with a quick response time, consider an LED display panel using either VA or TN technology. Such an LCD screen typically offers a 1ms response time. However, remember that these monitors tend to have smaller viewing angles and inferior image quality than an IPS monitor. Regardless, you can still get a considerably good performance when planning quick-action games provided you sit directly in front of the screen. In that case, vertical monitors may prove a viable option.
On the other hand, LED monitors to focus on the brightness of the visuals. For this reason, you"ll notice a difference in the screen"s coloration based on your sitting position. Viewing LED monitors at particular angles may result in the appearance of washed-out displays.
Below are some combinations of these two technologies:LCD monitors incorporating IPS panels and LED backlightLED-backlit with IPS panel or TN panel featuresIPS display featuring LCD or LED backlight technology
Another big difference between IPS displays and LED monitors lies in the energy uptake. An IPS monitor provides better visual quality than an LED monitor, leading to more power consumption to maintain excellent on-screen performance.
Although LED monitors provide brighter screens, their power consumption is much less than IPS panel technology. That explains why they are a favorite Liquid Crystals Display technology amongst those looking for affordable electronics.
Because IPS monitors take up much power, they release more heat than their LED alternatives. Despite LED display monitors providing bright pictures, they produce relatively less heat than monitors with IPS display technology.
The cost of a monitor using IPS screen technology is approximately $100 or more, depending on whether the panel infuses other technologies like a TN panel or another type of LCD.
Notably, mid-range IPS monitors usually go for more than high-end LED monitors. When it comes to LED monitor prices, you can get an excellent monitor under $200, $100 and even $50, depending on your model and the included attributes.
While both offer superb monitor selections, the differences between IPS and LEDs make one a better option for you than the other. Apart from these two, there are other display types to choose from so it can be hard to decide which suits you best. Nonetheless, here are vital questions to answer before deciding.
When picking a monitor, it is essential to get one that aligns with your application. If you want a monitor for creative visual applications, go for an IPS monitor. This LCD panel allows you to sit at more diverse angles, get elaborate graphics, and features color accuracy.
If you want gaming monitors for fast-paced shooting games, LED monitors might be the ideal option to consider. Ideally, the type of LED monitor you pick should feature a TN panel to cater to the limited viewing angle and lower display quality. Other excellent options to consider are Organic Light-Emitting Diodes (OLED monitors), given their improved display quality over pure LED monitors.
As noted, IPS monitors provide impeccable visual quality. Unfortunately, you"ll have to put up with the increased energy consumption. Sometimes, an IPS monitor may get quite hot, leading to a concern in the unit"s longevity. That explains why various individuals consider IPS displays unreliable and not as good in terms of performance as LED monitors.
While you won"t have the impressive visual and color accuracy of a high-quality IPS display, LED monitors to suffer less from overheating issues. Many consider LED monitor performance as dependable and consistent.
When purchasing monitors, it"s wise to work with a realistic price range depending on the attributes expected. The more specs and panel combinations, the steeper the cost, irrespective of whether they are LED or IPS monitors. For example, monitors that include other Liquid Crystal Display panel types like VA and TN are typically pricier than pure IPS panels.
If you want value for your bucks" worth, consider getting LED monitors. Besides the availability of numerous LED monitors at budget prices like this S2318HN monitor by Dell, you are likely to have more attribute compatibility with them than with IPS technology.
Yes, they are less likely to cause eye strain than LEDs. With them, you get decent color representation and excellent contrast ratios. For these reasons, they minimize the effort your eyes take to decipher things. Some of these IPS panels operate even at a refresh rate of 280Hz to reduce input lag and combat unpleasant screen effects like tearing that may lead to straining - click here for the best monitors for eye strain.
Both IPS and LEDs have critical upsides that might be key to your application. Irrespective of the technology you prefer, the trick is identifying which coincides best with what you envision for your monitor.
In sum, IPS monitors are fantastic if you have a more flexible budget and you prefer intensive viewing angles with impressive color reproduction and image accuracy. Something to remember is the increased overheating potential because of the relatively higher power consumption.
An LED monitor might be your go-to alternative if you want to spend less. Besides, you can pick from multiple options featuring LCD and TN panels to circumvent some shortcomings synonymous with LED displays. What"s more, their performance is more reliable.
When it comes todisplay technologies such asprojectorsand panels, factors such as resolution and refresh rate are often discussed. But the underlying technology is equally, if not more, important. There are tons of different types of screens, from OLED and LED to TN, VA, and IPS. Learn about the various monitor and television types, from operation to pros and cons!
1)Film layer that polarizes light entering2)glass substrate that dictates the dark shapes when the LCD screen is on3)Liquid crystal layer4)glass substrate that lines up with the horizontal filter5)Horizontal film filter letting light through or blocking it6)Reflective surface transmitting an image to the viewer
The most common form of monitor or TV on the market is LCD or Liquid Crystal Display. As the name suggests, LCDs use liquid crystals that alter the light to generate a specific colour. So some form of backlighting is necessary. Often, it’s LED lighting. But there are multiple forms of backlighting.
LCDs have utilized CCFLs or cold cathode fluorescent lamps. An LCD panel lit with CCFL backlighting benefits from extremely uniform illumination for a pretty even level of brightness across the entire screen. However, this comes at the expense of picture quality. Unlike an LED TV, cold cathode fluorescent lamp LCD monitors lack dimming capabilities. Since the brightness level is even throughout the entire array, a darker portion of scenes might look overly lit or washed out. While that might not be as obvious in a room filled with ambient light, under ideal movie-watching conditions, or in a dark room, it’s noticeable. LED TVs have mostly replaced CCFL.
An LCD panel is transmissive rather than emissive. Composition depends on the specific form of LCD being used, but generally, pixels are made up of subpixel layers that comprise the RGB (red-green-blue) colour spectrum and control the light that passes through. A backlight is needed, and it’s usually LED for modern monitors.
While many newer TVs and monitors are marketed as LED TVs, it’s sort of the same as an LCD TV. Whereas LCD refers to a display type, LED points to the backlighting in liquid crystal display instead. As such, LED TV is a subset of LCD. Rather than CCFLs, LEDs are light-emitting diodes or semiconductor light sources which generate light when a current passes through.
LED TVs boast several different benefits. Physically, LED television tends to be slimmer than CCFL-based LCD panels, and viewing angles are generally better than on non-LED LCD monitors. So if you’re at an angle, the picture remains relatively clear nonetheless. LEDs are also extremely long-lasting as well as more energy-efficient. As such, you can expect a lengthy lifespan and low power draw. Chances are you’ll upgrade to a new telly, or an internal part will go out far before any LEDs cease functioning.
Further segmenting LED TVs down, you’ll find TN panels. A TN display or Twisted Nematic display offers a low-cost solution with low response time and low input lag. TN monitors sport high refresh rates, so 100Hz, 144Hz, or higher. Thus, many monitors marketed toward gamers feature TN technology. Unfortunately, while an affordable, fast panel may sound ideal, TN panels suffer from inferior colour reproduction and horrible viewing angles. A TN panel works so that liquid crystal molecules point at the viewer, and light polarizers are oriented at 90-degree angles.
Like TN, IPS or In-plane Switching displays are a subset of LED panels. IPS monitors tend to boast accurate colour reproduction and great viewing angles. Price is higher than on TN monitors, but in-plane switching TVs generally feature a better picture when compared with twisted nematic sets. Latency and response time can be higher on IPS monitors meaning not all are ideal for gaming.
An IPS display aligns liquid crystals in parallel for lush colours. Polarizing filters have transmission axes aligned in the same direction. Because the electrode alignme