led vs lcd display supplier

One of the most common questions we’re asked when assisting businesses establish their digital signage systems is whether an LED or an LCD display is best for their business. The answer is always contextual to the clients’ needs. It starts by clarifying what the difference between the two actually is.

When we’re talking aboutconsumer products such as computer monitors and televisions the first thing to know is that an LED screenis an LCD screen, but an LCD screen is not always an LED screen. An LED monitor or television is just a specific type of LCD screen, which uses a liquid crystal display (LCD) panel to control where light is displayed on your screen.

For the display to be considered an LED screen, it means it is utilising ‘Light Emitting Diodes’ to generate the light behind the liquid crystals to form an image. A non-LED LCD screen has backlights (called fluorescent lamps) behind the screen that emit white light which cannot pass through the liquid crystals until an electric current is applied to the liquid crystals which then straighten out and allow light to pass through.

This is where it can get easy to divert away from giving clear advice on whether as LED or LCD display is best for your business, because consumer displays differ from commercial displays. We are not trying to give the reader direction on which monitor is best for their gaming set-up, but which screen type is ideal for communicating your business’ messages.

Commercial LED displays are typically referred to as Direct View LED. This is because they use LEDs as the individual pixels that make up the image itself. Using a surface array of LEDs removes any need for a liquid crystal display panel, which carries noticeable benefits for particular uses.

While LCD flat panels are available in resolutions of 1080P and 4K UHD, Direct View LED displays are measured by pixel pitch. Pixel pitch is the distance from the centre of one pixel cluster to the centre of the next pixel cluster in an LED screen. The smaller the pitch, the closer viewers can get to the display before they see the pixels themselves. Outdoor configurations may have a pitch of 10mm to 40mm, as they are viewed at longer distances.

For use indoors, where viewers would be closer to the display, a pitch of 10mm or less would be required, some have even sub-1mm pixel pitch. When considering Direct View LED displays, it is important to know the minimum viewing distance required. Multiplying the pixel pitch by 1,000 gives you a good rule of thumb for the minimum viewing distance.

Direct view LED displays can either use discrete oval LEDs which are basically one single self-contained diode, or Surface Mounted Device (SMD) LEDs. SMD LEDs contain 3 individual light-emitting diodes bunched together. Either way, it’s the light-emitting diodes that create the images you see on screen. This is explained in the image below, courtesy of LG Electronics

Commercial LCD screens are more closely related to their consumer counterparts like TVs but there are still differences to be aware of. It is not advised to simply purchase an LCD TV from your local electronics retailer and install it in a public setting and expect it to function as desired.

Both have been designed to be used differently. Commercial display manufacturers understand that their displays are going to be exposed to far different conditions than a living room television will be. The componentry in a commercial display is optimised to allow for the display to be on 24 hours a day, all year around. They take into account diverse environments such as hot kitchens, high foot traffic, and bad weather,ensuring the product won’t fail in such exposures. The addition of more durable and resistant technology means commercial LCD displays will typically be priced higher than their consumer cousins.

Brightness: When deployed in areas with strong ambient lighting, even the best LCDs can appear washed out and difficult to view, especially when from an angle. Direct view LEDs for outdoor applications can reach 9,000 nits, making them a brighter and better choice for most outdoor applications.

Contrast: Direct View LEDs can turn off pixels that aren’t being used which allows for a higher contrast and therefore a richer image in varied lighting conditions.

Size and shape: Direct view LED-based walls can be flat, curved, wrapped around pillars and more. With no size limit or set aspect ratio they can be used more flexibly than LCDs. Plus, panels have no bezels which means you can piece together Direct view LEDs to create large and uniquely shaped displays with no visible interruptions between units.

Lifespan and servicing: Most direct view LEDs are rated to last 10 years, compared to a typical 5 years for LCDs. Further, they can be easily replaced on-site, reducing maintenance costs.

Tougher: If you’re using an LCD for any outdoor application or one where the unit has to be protected from extreme temperatures or humidity, you’re going to need to include an enclosure and have an understanding of how to properly seal and vent the unit. Outdoor Direct view LEDs, on the other hand, are purpose-built to withstand harsh environments.

Price: The higher upfront cost of Direct LEDs could be the biggest sticking point when it comes to pitching a video wall. While prices have been steadily dropping, Direct view LEDs are still more expensive than LCD alternatives. However, make sure you consider the lifetime cost of the solution and other benefits mentioned above before you discount direct view LEDs.

Functionality: LCD screens can offer a wider range of functionality when it comes to set-up, display settings, and day-to-day control. There is also the addition of touch screen options for LCD displays which are a fairly sought-after feature these days.

Resolution: Whilst the fine pixel pitches available in direct view LEDs today make for impressively resolute images, LCD screens still boast are more uninterrupted image when viewed up close, particularly with the modern 4k displays. This makes them a better option for smaller retail stores, quick service restaurants or office meeting rooms.

As earlier stated, intended use for the display will determine which format you invest in. In outdoor environments or areas with high ambient lighting, brightness is the key concern. For indoor environments, the key concern is image quality and contrast. It’s also imperative to consider the usage environment and what the screen may be exposed to with regards to weather, temperature, humidity, direct contact and other factors. If you have a good understanding of your requirements for content, application, perception and budget then your first move should be to contact a supplier, like Black Lab Design, and we will be able to assist you with designing, building and installing the perfect digital display solution for your business.

In the world of digital signage, there are two prominent display technologies: LCD and LED. There’s also a considerable amount of misconception about these technologies and how they relate to each other or work together. The blame for much of this confusion can be attributed to the advent of LCD TVs with LED-backlighting technology, so let’s clear that difference up before we move on.

With any digital display, you must have a well working light source so that you can see the picture brightly. Until very recently, TVs have always been backlit—that is, illuminated from behind the display monitor. For a long period of time after television sets were invented, this was done by firing electrons through a “gun” to the screen (tube and projector TVs). In the early 2000s, LCD TVs were backlit by fluorescent bulbs. More recently, however, TV manufacturers began using LED technology as the light source for flat-screen LCD TVs, as this method provided more versatility and uniform picture lighting, therein lies some of the confusion.

As picture displays, there are many differences between LED display features and LCDs. Given advances in LED display technology—and drastically lower cost—both display types can be viable options for a variety of interior spaces. And of course, each has benefits, and each has limitations. To determine the best display for a digital signage project, it’s critical to understand exactly how each display type will perform and why one is better than the other in a given situation. It’s important to compare, not only cost, but also factors such as brightness, durability, size, resolution, vibrancy, and many more features that are on the market.

LED stands for light-emitting diode. By definition, LEDs provide their own light. Once reserved for large-scale, exterior digital displays, direct-view LED signage has emerged as a greatly improved, widely applicable medium, now suitable for virtually all display installations, both indoor or outdoor. In the digital signage industry, direct-view LED displays have now become the norm and work well together.

LCD stands for liquid crystal display. This type of display uses light-modulating properties of liquid crystals. As referenced above, liquid crystals don’t produce light directly; instead, they use a backlight to produce images on the screen. LCDs are used most often in interior applications, where users are in proximity to the screen. With this display technology, ambient light is usually limited and controlled.

Typically, LED displays have a higher up-front cost than LCDs; however, unlike LCDs, LED displays are rugged and durable, even in the most inhospitable environments. Additionally, they can be upgraded and retrofitted relatively easily. For total cost of ownership and longevity, the better option is the LED.

Brightness is typically measured in NITs. One NIT is equivalent to one candela per square meter. The brightness for LED displays ranges from hundreds to thousands of NITs. LCDs have a much lower brightness range feature. LED displays are able to compete in well-lit areas, both inside and outside. In contrast, competing light will severely impact an LCD; many times, this renders the picture unviewable.

While LED and LCD displays can both render most types of content, there are some drawbacks to LCDs. They can sometimes hold the “memory” of an image, and leave behind a residual imprint referred to as “image persistence.” It’s caused when a still image remains on the screen for too long. The colors become “stuck” in place. When the display tries to shift to another color, the crystals don’t want to budge. The result is a color that is slightly skewed from the intended one. LED displays do not encounter this issue.

Video walls are one of the most popular ways to use digital displays in interior spaces. From entertainment venues to other various retail spaces on the market, video walls have wide appeal. This makes the setup more complex than single screens, so it’s essential to have the right screens. LEDs are typically the preferred display for video walls. They are seamless, tiling together with no bezels. In a well-installed application, video walls have excellent uniformity and the widest viewing angles. LCDs can be tiled, but their bezels cause gaps and visual barriers. While there are LCDs with narrow bezels, small seams are still visible, unfortunately.

An LED display can be any size. There are no inherent limitations. They can also be curved, concave, or convex. They can even wrap completely around a pillar for a 360-degree effect. LCDs are typically only available in the standard sizing set by the manufacturer.

SNA Displays is a global manufacturing leader in LED video displays. We offer fully customizable LED products, thereby providing you with the most impact on your messaging. To learn more about how LED signage can power your digital display project, view our portfolio.

While a standard LCD screen uses fluorescent backlights, an LED screen uses light-emitting diodes for backlights. LCD screens usually have superior picture quality, but they less brightness than the LED screens. And some backlight configurations create better images than the LED screens. So, LCD display is good for Indoor of Commercial Display and LED display is good for outdoor of Commercial Display.

In the traditional sense, Digital Signage Media Solution products in a broad sense refer to display terminals that publish information or product advertisements in public places. At present, these products are mainly used for "indoor" commercial advertising applications. The indoor display mainly uses LCD display technology, because of its high resolution, fine colors, stable product performance, and easy installation and maintenance. Due to the "outdoor" special use environment, commercial advertising display products are required to have high brightness, protection, and durability.

Outdoor Billboard Advertising has been around since the mid-nineteenth century and may seem a bit dated, but the advent of digital billboards has witnessed a sudden rise in the popularity of these displays. In fact, billboards and digital advertising are the only growing advertising areas, while the radio, television, and print advertising markets are shrinking. Many companies have discovered that the presence of huge displays can mean a huge impact, and they are using the functions of digital billboards in creative ways. For example, the billboard of a coffee chain can adapt to real-time weather conditions: on a cold day, it will show a cup of hot coffee and a doughnut; on a hot day, it will show a cup of iced coffee drink.

The COVID-19 has made 2020 a turning point for the entire industry. Due to the further development of LCD panel display technology, the cost of high-brightness products continues to drop, and many digital signage product suppliers are also turning their attention to the outdoor advertising market. During the period of low demand for traditional applications, we saw new opportunities for digital signage products in the outdoor advertising application market.

According to research by relevant institutions, due to the impact of the epidemic in the first half of the year, the shipments of outdoor digital signage machines dropped sharply. In order to improve corporate profitability, most digital signage product manufacturers are turning their attention to the rising demand for outdoor markets, mainly in the transportation sector (Bus stations and other land transportation platforms), and the fast-growing self-service ordering display in the fast-food (QSR) retail application scenario. Secondly, during the epidemic, many stores added Digital Signage with Hand Sanitizer that can display posters, videos, and highly interactive in order to attract traffic. The creation of digital stores also promoted the growth of digital signage demand to a certain extent. Furthermore, due to the need for prevention, control, and isolation, manufacturers have taken longer to develop products. Therefore, during the epidemic period, the maturity of display terminal technology is catalyzed. The LCD & LED display technological competition during the epidemic has promoted the maturity of the technology and the decline in market prices, thereby stimulating the overall market.

The lineup of public displays and signage displays for "outdoor" or "semi-outdoor" applications with a brightness of more than 1,000 nits is growing steadily. The above display products need to work for a long time in a complex environment, usually with 1000nit or more, and adjust the brightness according to the ambient light; work around the clock (24/7); adapt to changes in high temperature, independently adjust the machine temperature; three protection (Waterproof), Dustproof, Anti-collision) and other characteristics.

In recent years, LED direct light-emitting display products with high brightness, high contrast, high response speed, customization, and strong protection have been in large scenes, and the outdoor application market for long-distance viewing can be said to be booming. It has grown into the preferred display product for outdoor sports, transportation, and building advertising markets. In 2019, LCD and LED direct light-emitting display technologies have joined hands in the "semi-outdoor" market, especially in retail and public places. In recent years, small-pitch GOB LED Display Technology has matured and costs have fallen. , The price of this product has also recently begun to show a downward trend.

Digital Signage is generally a small-size display terminal device that needs to be viewed from a close distance. The advantage of LCD is its small size and delicate display. Therefore, before the birth of small-pitch LED displays, LCD was the mainstream display terminal product for digital signage. At the same time, the entire industry has been committed to reducing chip size and pixel pitch. With the improvement of product resolution, small-pitch LED display products have begun to enter the indoor market and begin to compete on the same stage with LCD splicing walls, industrial projections, and other products.

Although LCD occupies part of the digital signage market, its low-brightness characteristics limit its application in outdoor advertising scenes. Therefore, in order to seize the opportunity of outdoor digital signage, digital signage manufacturers have come in to introduce brightness higher than 4000nit and IP protection level Products higher than 56, but their price is close to or even higher than that of P2-P5 LED displays, and their protection level is far less than that of outdoor LED displays. Therefore, in the field of outdoor digital signage with P2-P5 dot pitch, LED displays have advantages in price, brightness, and protection performance. However, in the field of fine-pitch products with higher pixel specifications, its price advantage is still inferior to LCD products. Therefore, major companies in the LED industry are trying to reduce the price difference and seize more digital signage market share.

In addition to regular comparisons of LCD and LED technologies in terms of resolution and seam, OMDIA believes that analyzing brightness specifications can provide more interesting comparisons for these technologies in the "outdoor" market. People usually ask "Isn"t LED more advantageous in terms of brightness?" It seems to be. However, due to the advancement of LCD panel technology, LCD can now provide products with brightness above 4000 nits without any technical difficulties. Therefore, it is difficult to say that LEDs are stronger than LCDs in the outdoor market.

At present, the price of outdoor LED displays with a dot pitch in the range of 2-5mm has approached or is better than that of high-brightness LCD display products, but for small-pitch products with higher pixel specifications, the price is higher than LCD products. Therefore, the major companies in the LED industry are trying to reduce the price difference and grab more market share. It is foreseeable that the LED and LCD are outdoors, and the semi-outdoor competition will become more intense.

Starting in 2021, the growth rate of outdoor digital signage display products will gradually exceed that of indoors. With the emergence of new high-brightness products, outdoor display products will have more opportunities to appear in new outdoor application scenarios such as outdoor sports and hotel terraces.

With the maturity of LED display technology and the decline in the price of small pitches, the Commercial terminal advertising display market will become intensified, and spread to the small pitch field, digital signage, and other major fields, and the competition of major machine manufacturers will also increase. It"s getting more intense. As a high-brightness display terminal, LED display screens have been gradually decreasing in price in recent years, and the dot pitch has been shrinking, and the display size has been shrinking. It has a strong impact on the digital signage display market and has become a dark horse in this field.

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.

“Direct local dimming” is essentially the same thing as full-array dimming, just with fewer LEDs spread further apart in the array. However, it’s worth noting that many manufacturers do not differentiate “direct local dimming” from full-array dimming as two separate forms of local dimming. We still feel it’s important to note the difference, as fewer, further-spaced LEDs will not have the same accuracy and consistency as full-array displays.

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.

As if it wasn’t already confusing enough, once you begin exploring the world of modern display technology, new acronyms crop up. The two you’ll most commonly find are OLED and QLED.

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.

For a further description of QLED and its features, read our list of the best TVs you can buy. The article further compares the qualities of both QLED and OLED TV; however, we also recommend checking outfor a side-by-side look at these two top-notch technologies.

There are more even displays to become familiar with, too, including microLED and Mini-LED, which are lining up to be the latest head-to-head TV technologies. Consider checking out how the two features compare to current tech leaders in

In the world of TV technology, there’s never a dull moment. However, with this detailed research, we hope you feel empowered to make an informed shopping decision and keep your Best Buy salesperson on his or her toes.

A Liquid Crystal Display (LCD) is one of the most enduring and fundamental technologies found in monitors, televisions, tablets, and smartphones. TVs and monitors once used cathode ray tubes (CRTs) to provide the image on your screen. But CRTs were bulky and contained dangerous chemicals. Once LCDs became affordable, they replaced CRTs.

An LCD features a panel of liquid crystal molecules. The molecules can be induced using an electrical current to take certain patterns which either block or allow light to pass through. An LCD TV or monitor has a light source at the rear of the display, which lights up the crystals. LCDs commonly use Cold Cathode Fluorescent Lamps (CCFL) to provide the TV or monitor backlight.

To provide a color image on your screen, the LCD has red, green, and blue sub-pixels in each screen pixel. Transistors within the display control the direction of light each pixel emits, which then passes through either a red, green, or blue filter.

Light Emitting Diodes (LEDs) are small semiconductors that emit visible light when an electrical current passes through them. LEDs are typically more efficient and longer-lasting than traditional lighting.

While manufacturers often use "LED" in place of "LCD," an LED TV is also a type of LCD. Instead of CCFL tubes to provide the LCDs backlight, rows of LEDs provide the backlight. The LEDs give better control of the light, as well as greater efficiency as it is possible to control individual LEDs.

For accuracy, a TV or monitor description should read "LED-Backlit LCD Monitor." But that is a) a mouthful and b) doesn"t allow for the creation of a separate marketable product. That"s not to say there aren"t differences between the two.

However, both LED and LCD monitors have different technologies that make certain panels more appealing to gamers, film buffs, designers, and so on. You should also note that on older screens, the difference between an LCD and LED TV or monitor is more pronounced, due to the relative age of the two lighting options.

There are several different types of LED and LCD monitors. When you"re trying to buy a new TV or monitor, understanding the differences and the terminology will help you bag a better deal. Here are some of the most common variations of the LED and LCD panels.

An Edge-Lit LED TV or monitor has its LEDs arranged around the rim of the display, behind the LCD panels facing the screen. The Edge-Lit option allows for slimmer designs, uses fewer LEDs, and can bring the cost of a new screen down. Light reflects across the screen uniformly to create the image.

One downside to an Edge-Lit screen is the dark contrast. Because the Edge-Lit LED display is brightest closer to the edges, color uniformity and black levels can become an issue, with some areas appearing darker than others.

A Full-Array LED display uses a grid of LED lights behind the LCD. The LEDs shine outwards directly towards the LCD, creating a bright and uniform picture. Full-Array LED panels enjoy the efficiency benefits of LEDs.

For the best image reproduction, a Full-Array LED display may include local dimming. Local dimming means that groups of LEDs can switch on and off as required to provide better overall control of the brightness level.

LEDs are often referred to as emitting white light. Actually, LEDs produce light closer to yellow than a pure white. That difference can create a color shift in the image you see on your screen. To improve on this issue, some manufacturers replace white LEDs with groupings of red, green, and blue (RGB) LEDs.

The display uses advanced electronics and programming to control the RGB LEDs accurately, along with more LEDs. The combination increases the cost of an RGB LED screen significantly for what most viewers would consider a marginal improvement. RGB LED displays never became mainstream because of their higher cost.

Organic Light-Emitting Diodes (OLED) are an advanced form of LED lighting found in some LED monitors. Each pixel of an OLED TV can glow or dim independently, resulting in much better black levels, extremely sharp colors, and better contrast ratios. The majority of OLED TVs and monitors have excellent viewing angles and color quality.

Without a doubt, OLED TVs and monitors (and even smartphone screens) have incredible color depth. But that does come at a cost. The latest generation of flagship smartphones all feature OLED screens, and it is a contributing factor to their massive cost. Another consideration is power. An OLED screen consumes more power than other LED-backlit screens and standard LCD screens.

The acronyms continue with QLED, which stands for Quantum Dot LED. Samsung"s QLED improves color accuracy as much as 90-percent from a regular LED TV or monitor and can hit the high levels of brightness and color depth that HDR requires.

So, what is a quantum dot monitor? In short, quantum dots are semiconductor nanocrystals that absorb light at one wavelength and output it at a different wavelength. The LEDs in a QLED emit all of the blue shades the picture requires. But a blue picture isn"t what consumers want. The quantum dots refract the blue LED light into the green and red shades needed to complete the picture.

A single quantum dot monitor or TV contains billions of semiconductor nanocrystals. Those nanocrystals give QLED screens outstanding black range and color depth, as well as excellent color saturation and contrast.

Just as there are types of LED monitor technology, so is there LCD monitor and TV technology, too. The type of LCD tech powering your screen makes a difference to the final picture. Here"s what you need to look out for.

Twisted nematic (TN) was one of the first LCD panel types, dating back to the 1980s. TN panels have fast response time. Most of the fastest gaming monitors use a TN LCD panel to offer exceptionally fast refresh rates, up to 240Hz. That level of refresh isn"t necessary for most people, but it can make a difference for top-level gamers (for instance, in reducing motion blur and image transition smoothness).

While a VA LCD panel has a better color range than a TN panel, they also have a slower refresh rate. They also usually cost more and, as such, are rarely marketed toward gamers. Between TN panels and IPS panels (read below), VA is the least popular LCD panel technology.

In-Plane Switching (IPS) panels are considered the best LCD panel technology for a variety of reasons. An IPS panel offers very wide viewing angles with very fast refresh rates. They"re not as fast as a TN panel, but IPS panels are widely available at 144Hz. At the time of writing, the first few 240Hz IPS LCD panels are hitting the market, although they are extremely expensive for a marginal gain.

Color-wise, IPS panels are excellent. High-quality IPS LCD panel prices continue to fall. However, there are several reasons why you shouldn"t buy a ridiculously cheap IPS gaming monitor.

The type of LCD panel you need depends on its use. Gamers want fast response times and rich depth of color, which is why IPS panels are a great option. If you"re more concerned about picture quality for your favorite films, an OLED panel will perform extremely well.

Still, now you know the terminology behind LCD panels and the pros and cons to each type, you can make an informed decision for your TV or monitor upgrade. But wait, the type of LCD or LED panel isn"t the only thing to consider. Take a moment to learn about the differences between 4K, Ultra HD, and 8K screens.

Digital panel meters (or DPM) typically uses either an LCD (Liquid Crystal Display) or LED (Light-Emitting Diodes) to display information in an alphanumerical format. What are the differences between LCD’s and LED’s and how do you know which one to pick for your application? Read on to find out!

The Liquid Crystal Display (or LCD) is a form of visual display used in electronic devices in which a layer of a liquid crystal is sandwiched between two transparent electrodes. The application of an electric current to a small area of the layer alters the alignment of its molecules, which affects its reflectivity or its transmission of polarized light. Liquid crystals do not emit light directly. Instead, they use a backlight or reflector to produce images in color or monochrome.

To take it a step further, LCD displays also come in two different variations: Positive LCD and Negative LCD. Essentially, a positive LCD display features dark-colored or black numbers/letters on a light-colored background while a negative LCD display features light-colored numbers/letters on a dark background.

Light-Emitting Diode (or LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light is determined by the energy required for electrons to cross the bandgap of the semiconductor.

While the underlying technology is the main difference between LCD’s and LED’s, there are other features that set these 2 apart from each other and could help to determine which one is right for your application.

Color: DPMs traditionally have a red, green or amber/yellow display. LEDs are also available in blue or white. Tri-color (RGB) LEDs can be used to create any color. The color of a transmissive LCD is determined by the backlight LED. Therefore, color-changing digital displays are more easily implemented with LCD technology. Some high-end DPMs provide a full-color graphic display. These use LCD technology similar to what is used in a color TV.

Brightness: The typical LED display is significantly brighter than an LCD. So viewing in a bright room or in a crowded instrument cluster favors LED. The LED’s higher brightness coupled with higher contrast gives enhance readability over LCDs. However, in direct sunlight, a reflective LCD is more visible.

Viewing Angle: LED displays to have a much wider viewing angle than LCDs. When viewing an LCD display, the image clarity will become diminished when viewing the display off to the side from the center point in either direction.

Temperature: LEDs are semiconductors, so they have a wide temperature range. Other components in the meter will determine its operating temperature limits. The chemical action in the LCD slows down at low temperatures (typically <0°C), so it may require a heater for these situations. Depending on the type of LCD, the maximum temperature of an LCD meter may also be more restricted than an LED meter.

Burn-In Issues: Neither LCD nor LED displays to have burn-in issues. That is, an image is “burned in” to the display if left unchanged for an extended time. Because of this, both types of displays are considered suitable for static images, which are typical with digital panel meters.

Life: Either display type will provide years of continuous operation. However, LCDs can degrade in high humidity due to an imperfect seal between the glass plates.

Both LCD and LED technologies have their own set of advantages and disadvantages. Be sure to consider all of these factors when deciding on the right type of display for your DPM application.

At Weschler Instruments, we carry a wide selection of digital panel meters from an assortment of manufacturers in both LCD and LED displays. We also recognize that every application is different and can sometimes require custom input ranges/scales. Contact us today with your needs and one of our highly qualified salespeople will assist you.

If you are looking to have custom electronics built that need displays, you will have to choose between LED displays and LCD displays. This can be a confusing choice, as LED displays and LCD displays are quite similar. However, there are a few important differences. To understand why this choice is an important one, you need to know what LEDs are and what LCDs are. This way, you can see the differences between the two technologies. To learn more about LED vs LCD, read on.

An LCD display, also known as a liquid crystal display, has been the dominant display technology for quite some time. It is used for tablets, smartphones, TVs, and computer monitors. Monitors formally used cathode ray tubes, also known as CRTs, to project the image. However, LCD displays eventually became affordable in the late seventies and they replaced CRTs. An LCD works by having a panel of liquid crystal that is forced by a source of electricity to create certain patterns. An LCD display has a light source behind the crystals. Some of our LCD displays can display color. These displays have red, green, and blue pixels within the liquid crystal. When the light turns on and passes through the liquid crystal, it also passes through a red, green, or blue filter.

LEDs, also known as light emitting diodes, are tiny semiconductors that give off light when an electrical current is applied to them. The light is not usually very bright, but it is more energy efficient and lasts longer than traditional lights. LEDs can be used in place of LCDs by some manufacturers. LEDs are actually a type of LCD. Normal LCDs use cooled carbon fluoride tubes, also known as CCFL tubes, to provide the backlight for the LCDs. The LEDs are an alternative to these CCFL tubes. They can give greater control of the light sent to the display. The extra energy efficiency comes from the fact that individual LEDs can be shut off when they aren’t needed for the display. An LCD display is either completely on or completely off. There is no in-between setting like there is with LEDs. LEDs actually come in several different types. These include RGB- LED, full array, and edge-lit LED displays.

As previously mentioned, LEDs are more energy efficient. You may think that using LEDs instead of an LCD for your display will not result in appreciable energy savings. However, this is not necessarily true. It depends on how large the display is on your device, how often it’s on, and on the cost of power. They could add up to hundreds of dollars every year. When you’re trying to cut cost for your company, every little bit counts. Also, keep in mind that better energy efficiency will help make a company more green.

LED displays are also more readable than LCD displays. This is especially true during low-light situations. The pure white backlights of the LED displays means the colors do not get distorted when the display’s brightness is turned up. Also, LED displays tend to be higher resolution. This can prevent to misreading the display, no matter what the conditions are. If the device controls a sensitive function, misreading the display and acting upon this incorrect information could be very serious. An LED display could prevent this from happening. There is a good reason that many of the most advanced electronics in this day in age use LED displays.

Pretty much the only disadvantage of LED displays is that they are more expensive. Just how much more expensive depends on the device and on the application that the device will be used in. In general, they’re only a little more expensive. If your company is on a tight budget and you do not need the advantages that an LED display can provide, you may be better suited going with an LCD display. Otherwise, an LED display may be the best choice for your business. If you’re not sure, you can contact one of our engineers. They will ask you some questions about the application it may be used in and then make an informed recommendation. Of course, the final decision is up to you.

From panel technology to refresh rates, there are a lot of things to consider when looking for a new gaming monitor. To aid you on your journey for the perfect setup, we"re breaking down two of the most common display technology terms: LED and LCD. Here"s what you need to know about LED and LCD screens, what the terms stand for, and how they factor into modern gaming monitors.

LCD stands for liquid-crystal display, which refers to how the monitor works. Behind the screen, liquid crystals are sandwiched between two layers of glass and used to change the colors of pixels to create the images that you see. The whole process is a lot more complicated, but that"s the gist of how LCDs function.

In the past, some LCDs were backlit by CCFLs (cold-cathode fluorescent lamps). LCDs with fluorescent backlighting have been around longer, so if you can find one, they will be cheaper than LED monitors. However, if you"re a gamer looking for decent refresh rates and response times, it"s going to be hard to find a monitor with fluorescent backlighting. They"ve almost completely been replaced by LCD monitors with LED backlights.

LEDs work in a similar way; in fact, you can consider LEDs a subcategory of LCDs. The only difference between some LCDs and LEDs is the type of backlighting: LEDs use LED (light-emitting diodes) backlighting.

In contrast to fluorescent backlighting, LED backlighting generally provides brighter colors and sharper contrast. The monitors are also thinner in size and, in the long run, more energy efficient than LCDs with fluorescent backlights. LED backlighting is the newer technology and the current standard for monitors with high refresh rates and fast response times. When you see LCD in product descriptions, they"re almost always LCD monitors that use LED (as opposed to fluorescent) backlighting. For example, BenQ"s EL2870U monitor is listed as an LCD, but it"s an LCD with LED backlighting.

There are different types of LED backlighting: edge-lit and array-lit. In edge-lit monitors, the lights are placed around the edges of the monitor. Light guides are then used to diffuse the light evenly across the screen. In array-lit monitors, lights are placed behind the screen in a pattern.

For example, some edge-lit and array-lit LEDs have local dimming capabilities, a feature that can selectively dim certain zones of LED lights. Local dimming improves contrast ratio and provides deeper blacks in dimly lit scenes. These monitors, however, tend to be pricey. Some well-reviewed options include the Samsung Odyssey G7 and Philips Momentum 436M6VBPAB, both of which are edge-lit monitors with partial local dimming capabilities. The Acer Predator X35 is an (expensive) full-array monitor with full local dimming (FALD) capabilities.

You won"t have much of a choice between LED or LCD. Most monitors, regardless of whether they"re marked as LED or LCD, will use LED backlights. LED backlights became the new standard because they allow manufacturers to make thinner, more energy-efficient monitors with better graphics. It"s not worth going out of your way to find an LCD with fluorescent backlighting, unless you really, really hate LED lights.

Which backlights a monitor has isn"t as important as other factors such as panel technology, refresh rates and response time, G-Sync vs. FreeSync, and HDR --those are the characteristics you should pay more attention to when choosing a monitor. If you"re not looking to break the bank, a couple of great LED monitors at excellent price points we can recommend are the Asus VP249QGR, a nice budget 1080p monitor, and Acer XF250Q Cbmiiprx 24.5, a well-reviewed budget 240Hz monitor.

Check out our guide to the best cheap gaming monitors for more budget options; plus, see our picks for the best monitors for PS5 and Xbox Series X, best 144Hz monitors, and the best 4K gaming monitors for more LED displays worth picking up.

Although there are big differences between LCD and LED displays, there are a lot of confusion in the market which shouldn’t happen. Part of the confusion comes from the manufacturers. We will clarify as below.

LCD stands for “liquid crystal display”. LCD can’t emit light itself; it has to use a backlight. In the old days, manufacturers used to use CCFL (cold cathode fluorescent lamps) as backlight, which is bulky and not environment friendly. Then, with the development of LED (light emitting diode ) technology, more and more backlights use LEDs. The manufacturers name them as LED monitors or TV which makes the consumers think they are buying LED displays. But technically, both LED and LCD TVs are liquid crystal displays. The basic technology is the same in that both television types have two layers of polarized glass through which the liquid crystals both block and pass light. So really, LED TVs are a subset of LCD TVs.

Quantum-dot TVs are also widely discussed for recent years. It is basically a new type of LED-backlit LCD TV. The image is created just like it is on an LCD screen, but quantum-dot technology enhances the color.

For normal LCD displays, when you light up the display, all the LEDs light up even for unwanted area (for example, some areas need black). Whatever perfect the LCD display made, there is still small percentage of light transmitting through the LCD display which makes it difficult to make the super black background. The contrast decreases.

Photo-emissive quantum dot particles are used in RGB filters, replacing traditional colored photoresists with a QD layer. The quantum dots are excited by the blue light from the display panel to emit pure basic colors, which reduces light losses and color crosstalk in RGB filters, improving display brightness and color gamut. Although this technology is primarily used in LED-backlit LCDs, it is applicable to other display technologies which use color filters, such as blue/UV AMOLED(Active Matrix Organic Light Emitting Diodes)/QNED(Quantum nano-emitting diode)/Micro LED display panels. LED-backlit LCDs are the main application of quantum dots, where they are used to offer an alternative to very expensive OLED displays.

Micro LED is true LED display without hiding at the backside of the LCD display as backlight. It is an emerging flat-panel display technology. Micro LED displays consist of arrays of microscopic LEDs forming the individual pixel elements. When compared with widespread LCD technology, micro-LED displays offer better contrast, response times, and energy efficiency.

Micro LEDs can be used at small, low-energy devices such as AR glasses, VR headsets, smartwatches and smartphones. Micro LED offers greatly reduced energy requirements when compared to conventional LCD systems while has very high contrast ratio. The inorganic nature of micro-LEDs gives them a long lifetime of more than 100,000 hours.

As of 2020, micro LED displays have not been mass-produced, though Sony, Samsung and Konka sell microLED video walls and Luumii mass produces microLED lighting. LG, Tianma, PlayNitride, TCL/CSoT, Jasper Display, Jade Bird Display, Plessey Semiconductors Ltd, and Ostendo Technologies, Inc. have demonstrated prototypes. Sony and Freedeo already sells microLED displays as a replacement for conventional cinema screens. BOE, Epistar and Leyard have plans for microLED mass production. MicroLED can be made flexible and transparent, just like OLEDs.

There are some confusions between mini-LED used in LCD backlight as Quantum dot displays. To our understanding, mini-LED is just bigger size of micro LED which can be used for larger size of cinema screen, advertisement walls, high end home cinema etc. When discussing Mini-LED and Micro-LED, a very common feature to distinguish the two is the LED size. Both Mini-LED and Micro-LED are based on inorganic LEDs. As the names indicate, Mini-LEDs are considered as LEDs in the millimeter range while Micro-LEDs are in the micrometer range. However, in reality, the distinction is not so strict, and the definition may vary from person to person. But it is commonly accepted that micro-LEDs are under 100 µm size, and even under 50 µm, while mini-LEDs are much larger.

When applied in the display industry, size is just one factor when people are talking about Mini-LED and Micro-LED displays. Another feature is the LED thickness and substrate. Mini-LEDs usually have a large thickness of over 100 µm, largely due to the existence of LED substrates. While Micro-LEDs are usually substrate less and therefore the finished LEDs are extremely thin.

A third feature that is used to distinguish the two is the mass transfer techniques that are utilized to handle the LEDs. Mini-LEDs usually adopt conventional pick and place techniques including surface mounting technology. Every time the number of LEDs that can be transferred is limited. For Micro-LEDs, usually millions of LEDs need to be transferred when a heterogenous target substrate is used, therefore the number of LEDs to be transferred at a time is significantly larger, and thus disruptive mass transfer technique should be considered.

It is exciting to see all the kinds of display technologies which make our world colorful. We definitely believe that LCD and/or LED displays will pay very important roles in the future metaverse.

If you have any questions about Orient Display displays and touch panels. Please feel free to contact: Sales Inquiries, Customer Service or Technical Support.

In market, LCD means passive matrix LCDs which increase TN (Twisted Nematic), STN (Super Twisted Nematic), or FSTN (Film Compensated STN) LCD Displays. It is a kind of earliest and lowest cost display technology.

LCD screens are still found in the market of low cost watches, calculators, clocks, utility meters etc. because of its advantages of low cost, fast response time (speed), wide temperature range,  low power consumption, sunlight readable with transflective or reflective polarizers etc.  Most of them are monochrome LCD display and belong to passive-matrix LCDs.

TFT LCDs have capacitors and transistors. These are the two elements that play a key part in ensuring that the TFT display monitor functions by using a very small amount of energy without running out of operation.

Normally, we say TFT LCD panels or TFT screens, we mean they are TN (Twisted Nematic) Type TFT displays or TN panels, or TN screen technology. TFT is active-matrix LCDs, it is a kind of LCD technologies.

TFT has wider viewing angles, better contrast ratio than TN displays. TFT display technologies have been widely used for computer monitors, laptops, medical monitors, industrial monitors, ATM, point of sales etc.

Actually, IPS technology is a kind of TFT display with thin film transistors for individual pixels. But IPS displays have superior high contrast, wide viewing angle, color reproduction, image quality etc. IPS screens have been found in high-end applications, like Apple iPhones, iPads, Samsung mobile phones, more expensive LCD monitors etc.

Both TFT LCD displays and IPS LCD displays are active matrix displays, neither of them can produce color, there is a layer of RGB (red, green, blue) color filter in each LCD pixels to make LCD showing colors. If you use a magnifier to see your monitor, you will see RGB color. With switch on/off and different level of brightness RGB, we can get many colors.

Neither of them can’t release color themselves, they have relied on extra light source in order to display. LED backlights are usually be together with them in the display modules as the light sources. Besides, both TFT screens and IPS screens are transmissive, it will need more power or more expensive than passive matrix LCD screens to be seen under sunlight.  IPS screens transmittance is lower than TFT screens, more power is needed for IPS LCD display.

For all the new technologies that have come our way in recent times, it’s worth taking a minute to consider an old battle going on between two display types. Two display types that can be found across monitors, TVs, mobile phones, cameras and pretty much any other device that has a screen.

In one corner is LED (light-emitting diode). It’s the most common type of display on the market, however, it might be unfamiliar because there’s slight labelling confusion with LCD (liquid crystal display).

For display purposes the two are the same, and if you see a TV or smartphone that states it has an ‘LED’ screen, it’s an LCD. The LED part just refers to the lighting source, not the display itself.

In a nutshell, LED LCD screens use a backlight to illuminate their pixels, while OLED’s pixels produce their own light. You might hear OLED’s pixels called ‘self-emissive’, while LCD tech is ‘transmissive’.

The light of an OLED display can be controlled on a pixel-by-pixel basis. This sort of dexterity isn’t possible with an LED LCD – but there are drawbacks to this approach, which we’ll come to later.

In cheaper TVs and LCD-screen phones, LED LCD displays tend to use ‘edge lighting’, where LEDs sit to the side of the display, not behind it. The light from these LEDs is fired through a matrix that feeds it through the red, green and blue pixels and into our eyes.

LED LCD screens can go brighter than OLED. That’s a big deal in the TV world, but even more so for smartphones, which are often used outdoors and in bright sunlight.

Brightness is generally measured as ‘nits’ – roughly the light of a candle per square metre. Brightness is important when viewing content in ambient light or sunlight, but also for high dynamic range video. This applies more to TVs, but phones boast credible video performance, and so it matters in that market too. The higher the level of brightness, the greater the visual impact.

Take an LCD screen into a darkened room and you may notice that parts of a purely black image aren’t black, because you can still see the backlighting (or edge lighting) showing through.

Being able to see unwanted backlighting affects a display’s contrast, which is the difference between its brightest highlights and its darkest shadows.

You’ll often see a contrast ratio quoted in a product’s specification, particularly when it comes to TVs and monitors. This tells you how much brighter a display’s whites are compared to its blacks. A decent LCD screen might have a contrast ratio of 1,000:1, which means the whites are a thousand times brighter than the blacks.

Contrast on an OLED display is far higher. When an OLED screen goes black, its pixels produce no light whatsoever. That means an infinite contrast ratio, although how great it looks will depend on how bright the screen can go. In general, OLED screens are best suited for use in darker rooms, and this is certainly the case where TVs are concerned.

OLED panels enjoy excellent viewing angles, primarily because the technology is so thin, and the pixels are so close to the surface. You can walk around an OLED TV or spread out in different spots in your living room, and you won’t lose out on contrast. For phones, viewing angles are extra important because you don’t tend to hold your hand perfectly parallel to your face.

Viewing angles are generally worse in LCDs, but this varies hugely depending on the display technology used. And there are lots of different kinds of LCD panel.

Perhaps the most basic is twisted nematic (TN). This is the type used in budget computer monitors, cheaper laptops, and very low-cost phones, and it offers poor angled viewing. If you’ve ever noticed that your computer screen looks all shadowy from a certain angle, it’s more than likely it uses a twisted nematic panel.

Thankfully, a lot of LCD devices use IPS panels these days. This stands for ‘in-plane switching’ and it generally provides better colour performance and dramatically improved viewing angles.

IPS is used in most smartphones and tablets, plenty of computer monitors and lots of TVs. It’s important to note that IPS and LED LCD aren’t mutually exclusive; it’s just another bit of jargon to tack on. Beware of the marketing blurb and head straight to the spec sheet.

The latest LCD screens can produce fantastic natural-looking colours. However, as is the case with viewing angles, it depends on the specific technology used.

OLED’s colours have fewer issues with pop and vibrancy, but early OLED TVs and phones had problems reining in colours and keeping them realistic. These days, the situation is better, Panasonic’s flagship OLEDs are used in the grading of Hollywood films.

Where OLED struggles is in colour volume. That is, bright scenes may challenge an OLED panel’s ability to maintain levels of colour saturation. It’s a weakness that LCD-favouring manufacturers enjoy pointing out.

Both have been the subject of further advancements in recent years. For LCD there’s Quantum Dot and Mini LED. The former uses a quantum-dot screen with blue LEDs rather than white LEDs and ‘nanocrystals’ of various sizes to convert light into different colours by altering its wavelength. Several TV manufacturers have jumped onboard Quantum Dot technology, but the most popular has been Samsung’s QLED branded TVs.

Mini LED is another derivation of LED LCD panels, employing smaller-sized LEDs that can emit more light than standard versions, increasing brightness output of the TV. And as they are smaller, more can be fitted into a screen, leading to greater control over brightness and contrast. This type of TV is becoming more popular, though in the UK and Europe it’s still relatively expensive. You can read more about Mini LED and its advantages in our explainer.

OLED, meanwhile, hasn’t stood still either. LG is the biggest manufacturer of large-sized OLED panels and has produced panels branded as evo OLED that are brighter than older versions. It uses a different material for its blue OLED material layer within the pan