difference between lcd screen and digitizer supplier

Responsible for performing installations and repairs (motors, starters, fuses, electrical power to machine etc.) for industrial equipment and machines in order to support the achievement of Nelson-Miller’s business goals and objectives:

• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).

• Provide electrical emergency/unscheduled diagnostics, repairs of production equipment during production and performs scheduled electrical maintenance repairs of production equipment during machine service.

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LCD (liquid crystal display) is the technology used for displays in notebook and other automated industry computers. It is also used in screens for mobile devices, such as laptops, tablets, and smartphones.

Like light-emitting diode (LED) and gas-plasma technologies, LCDs allow displays to be much thinner than cathode ray tube (CRT) technology. LCDs consume much less power than LED and gas-display displays because they work on the principle of blocking light rather than emitting it.

Each LCD touch screen monitor contains a matrix of pixels that display the image on the screen. Early LCDs screen had passive-matrix screens, which controlled individual pixels by sending a charge to their row and column. Since a limited number of electrical charges could be sent each second, passive-matrix screens were known for appearing blurry when images moved quickly on the screen.

Modern LCDs display typically use active-matrix technology, which contains thin film transistors, or TFTs touch screen. These transistors include capacitors that enable individual pixels to "actively" retain their charge. Therefore, the active-matrix LCDs touch panel are more efficient and appear more responsive than passive-matrix displays.

The backlight in liquid crystal display provides an even light source behind the LCD screen. This light is polarized, meaning only half of the light shines through to the liquid crystal layer.

The touchscreen panel a display device that senses physical touch by a person’s hands or fingers, or by a device such as a stylus, and then performs actions based on the location of the touch as well as the number of touches.

Touch screen glass can be quite useful as an alternative to a mouse or keyboard for navigating a graphical user interface. Touch screens are used on a variety of devices such as computer and laptop displays, smartphones, tablets, cash registers, and information kiosks.

A touch-screen digitizer is one piece in a multilayered "sandwich." In modern devices, the screen that produces the images is found at the bottom layer; the digitizer is a transparent sheet that occupies a middle layer on top of the screen, and a thin sheet of hard, protective glass forms the top layer.

Touching the screen triggers touch sensors immediately under your fingertip; a specialized electronic circuit receives signals from these sensors and converts them into a specific location on the screen as X and Y coordinates. The circuit sends the location to software that interprets the touch and location according to the app you"re using.

For example, when you dial a phone number, your fingers touch the numbers on a virtual keypad on the phone"s screen. The software compares the locations touched against the keypad and generates a phone number one digit at a time.

Touch Screen Glass– The bottom layer is the ITO glass, typically thickness is between 1 and 3 millimetre. If you drop your device, the cracked glass ends up resembling an elaborate spiderweb.

Digitizer – The digitizer is located above the glass screen. It is the electrical force that senses and responds to touch. When you tap your fingertip or swipe it across the screen, the mere touch acts as data input to the device’s center. If your device fails to respond to touch, it’s time for a new digitizer.

The touch screen digitizer is an electrical mechanism that is fused with the glass screen; so if you need to replace the digitizer, you’ll have to replace the glass, too, and vice versa.

Touch Screen Panel- Touchscreen is the thin transparent layer of plastic, which reads the signal from the touch and transports it to the processing unit. It is the part that you can touch without disassembling the device.

LCD – LCD display is an acronym for liquid crystal display. The LCD is the visual component underneath the glass that displays the image on the screen. You can not get to the LCD without taking the device apart first.

A touch screen display is usually made with three main parts. The protective glass sheet, the digitizer sheet, and the LCD. The digitizer is a thin transparent sheet that is adhered to the protective glass sheet with a transparent conductive adhesive. The digitizer is the only part of the display assembly that is responsible for sensing touch. Since the human touch is conductive it allows the screen to sense the location you touch. The LCD is only responsible for displaying the image on the screen. If the screen is not responding to touch then usually the digitizer is damaged or faulty. Usually a damaged or cracked LCD will display a distorted image or no image at all. So if the phone displays a good image but does not respond to touch then you may have the option of only replacing the digitizer. It"s not as easy of a repair as replacing the whole display but is cheaper. A new digitizer part already has the digitizer sheet adhered to a protective sheet of glass. If a person can remove the faulty digitizer from the phone without damaging the LCD then it is surely more cost effective repair. Some displays have the digitizer fused to the LCD which makes it hard not to damage the LCD if trying to remove the digitizer. If that is the case with your phone"s display it is a lot easier to just replace the whole display. Hope this information is helpful.

Touchscreen devices consist of numerous different components that must work cohesively together in order to make it functional. The touch sensor, controller, and the software all play important roles. But there’s one component that’s often overlooked in the equation and that’s the touchscreen digitizer. This is the component that allows users to directly interact with what’s on the screen and issue commands.

As you know, touchscreen devices consist of multiple layers each of which serve a different purpose and carry out various functions. The purpose of the touchscreen digitizer glass layer is essentially to translate or convert physical touch commands into digital signals that the device can understand and then carry out.

Commercial and industrial displays such as capacitive and resistive screens all feature touchscreen digitizers that are placed on top of and connected to the LCD layer using a flex cable. While the LCD layer is responsible for displaying sharp and crystal-clear images on the screen, the LCD touchscreen digitizer reads, understands, and translates the commands given so that the device can perform the appropriate functions.

Touchscreen digitizers are fairly common components of modern LCD displays, but not all of them are equipped with one. The sole purpose of an LCD display touchscreen digitizer is to convert touch commands on the top layer into digital data that the device can understand and perform. Once the touch commands are converted into digital data, the device can then perform the required function and change the images displayed on the screen accordingly.

Touchscreen digitizers are made of a single glass layer, which means they can be susceptible to damage if the device is dropped or comes into contact with a brute force. Although the device can still marginally function depending on the extent of the damage to the touchscreen digitizer glass, its functionality and ability to comprehend touch commands may be limited. If the glass is completely shattered, then the device won’t be able to interpret touch commands at all.

The LCD and touchscreen digitizer layers of a device display serve completely different functions, but they work in tandem to maximize user experience and device performance. Since both of these components are made of thin glass layers, they’re not impervious to damages such as cracks or scratches as a result of being dropped or coming into contact with external physical stressors.

If it’s only the touchscreen digitizer that’s broken, you’ll still be able to make out what’s being displayed on the screen by the LCD component for the most part. The only difference is that parts of the screen or the entire screen might be unresponsive to your touch commands as a result of the damages. Moreover, blobs or splotchy images may appear in certain parts of the screen.

This indicates that there’s a disconnection between the touchscreen digitizer and the LCD display, which is preventing the device from performing the desired functions issued by touch commands.

The LCD screen is responsible for the visual component of your device. Pixelation in the form of multicoloured splotches or dots throughout the screen indicates that the LCD component has sustained a certain level of damage. It can be caused by wear and tear over time or if your device sustains physical damage.

A black screen indicates that the LCD layer of the device is damaged. The device itself will most likely still turn on and function like normal, but you won’t be able to see what it’s doing on the screen itself. Typically, this just means that the LCD layer needs to be repaired or replaced. Depending on the extent of the damage, it might be more practical and cost-effective to simply purchase a new device altogether unless you’re still within the warranty period.

Nauticomp Inc. is one of the leading digital device manufacturers and distributors in North America and the UK. We deliver high-quality state-of-the-art commercial and industrial displays that can be custom-tailored according to the specific needs of our customers. Contact ustoday to learn more about our products or to place an order.

As an official phone repair provider who has been in the business for almost a decade, one unique question people ask when they visit our service centres to replace their phone screen is: "what"s the difference between original and copy phone screen?"

Well, the answer is, there are many differences between these two screens, which is mostly in their quality. And while “copy” phone screens are somewhat cheaper than the originals, it doesn’t justify the difference in quality. So, before you regret replacing your phone screen with a forbidden part, the tips below will tell you the critical differences between original and copy phone screens.

Generally, phone screens manufactured from your brand"s factory are the original ones while ‘Copy’screens are the ones designed and produced by third-party manufacturers and factories that are not related to your brand.

Many people usually like to go for copy screens because of their cheaper price. However, the "real" differences between original and copy screens lie in their quality, and here’s what you need to know about them.

One of the principal issues with "copied" phone screens and why it differs from the originals is touch and digitizer problems. And that"s a big problem since you"re going to control the device with the touchscreen anyway.

As far as we could remember, phone manufacturers build the touch panel/digitizer with the LCD itself, while the copied screen manufacturer build it separately on the surface glass. Hence, there"s a difference in touch sensitivity. Additionally, copied phone screens usually drop the high touch sampling rate, meaning your screen may not respond to your touches faster.

Here"s also another major issue with the digitizer on copied phone screens. When you crack a copied screen accidentally, the touchscreen stops working, stopping you from accessing the device until you fix it again. Meanwhile, the touch on the original phone screen works perfectly, even after undergoing severe cracking.

Besides having touch problems, most copy phone screens usually have poor display properties. That means you get lower brightness, colour accuracy, sharpness, contrast, etc. And when the display isn"t great, watching movies and viewing other content becomes boring.

For instance, if the original screen is supposed to have 480 nits of brightness, but the copy screen has just 200 nits, the screen becomes unusable under bright lights. Moreso, copied phone screen seems to have more blue light, which, in return, affect your sight and disrupts your sleep at night.

Among others, copied phone screens drop higher refresh rates, and that"s a bummer since most phones come with at least 90Hz refresh rate screens. What that means is the copied screen won’t feel smooth as it’s supposed to be.

It"s not all about the display quality. A copy phone screen may also affect other parts of the phone system if its specifications don"t tally with the original one. In such a case, it could drain your battery at an alarming rate, or at worse, damage your backlight.

If you happen to have a phone with an in-display fingerprint sensor, then replacing its screen with a copied one is not an option – it’s going to mess with your fingerprint accuracy.

We know copied phone screens for their poor quality, and it also extends to the fingerprint sensor. Hence, it takes a longer time to unlock your device. And in other cases, the security of the sensor is not accurate. We"ve seen situations where phones get unlocked with many unregistered fingers after replacing the screen with a copied one.

If you care about your phone"s security and you don"t want a sluggish fingerprint sensor, then we recommend you only go for the original phone screen replacement.

That brings us to the last difference we’re going to mention between copied and original phone screens. They manufacture copied phone screens with poor glass materials. Hence, they break quicker than the originals. And when they do, you’ll be left with only one option: to replace the screen again.

The major reason for choosing the official service centre over third-party/local repair shops summarizes what we"ve said earlier. The official service centre is the reliable place to get original phone screen replacement parts.

Why? As of today, smartphone phone manufacturers/brands release genuine spare parts only to the official service centres and affiliated repair centres. That means third party repair shops get their spare parts somewhere else: usually third-party factories/companies not related to your phones brand.

Besides offering you the original screen spare parts, the official service centres also have other advantages. These include certified and well-experienced technicians to fix the screen, the use of modern tools that won"t damage your phone further, and most importantly, a reliable warranty. Local repair shops usually don"t offer these features; most especially a reliable warranty, which means you"re on your own if the replaced screen gets faulty afterwards.

As far as choosing the official service centre is concerned for genuine screen replacement, then you shouldn"t shy away from Carlcare Service if you own a TECNO, Infinix, or itel phone with a cracked screen.

We"re the official service center for these three brands to cater for your mobile repair needs. And for screen replacement, Carlcare delivers excellently. Our brand-trained technicians replace your cracked screen with genuine OEM parts at affordable rates.

We understand you have a busy schedule; and yes, we"ll replace your screen in the shortest possible time. Start by checking how much it cost to fix your cracked phone screen, then you can book an online reservation service with us to reduce your waiting time and also become a VIP customer.

However, if the digitizer or LCD is also damaged during a fall, that screen no longer carries value because it cannot be refurbished. Repair shops cannot sell broken LCDs to refurbishing companies; therefore, they cannot offset the cost of an LCD repair. That is why repair stores often charge a little extra if there is damage to the LCD or digitizer, to make up for that loss. Repair stores that don’t have an additional charge for an LCD repair typically inflate their glass repair price to make up for the loss from damaged LCDs. If they have one price, that means everyone is paying more to cover the cost of customers who have damaged LCDs and customers who only have cracked glass. This is why TCR separates the price of glass and LCD repairs for you! If you only have cracked glass, you only have to worry about paying to replace the cracked glass.

If your phone or tablet’s glass is shattered there will be cracks or chips on the screen itself. If it is just the glass that is damaged, the device may still function and you may be able to use it normally. If this is the case, it is likely that only the glass needs to be replaced. To prevent further damage to your device it is best to get it repaired quickly. For example, if liquids seep through the cracks it could cause permanent damage to the LCD.

Many people may continue to use their touchscreen with shattered glass and delay fixing the glass on their devices; however, if the touchscreen isn’t responsive, it could be a sign of more significant damage to the device’s digitizer which is integrated with the LCD screen.

A pixelated screen can indicate LCD damage. This would look like a patch of multicolored dots, a line or lines of discoloration, or a screen with rainbow colors. For many people, these colors are an easy way to know that their LCD is broken and that they should get it repaired.

Dropping your phone isn’t the only reason you’ll end up with a pixelated screen. Over time, your screen’s LCD may break down through regular use. This happens to other devices aside from your smartphone or tablet. Pixelation can happen to TVs and computers, too. People typically decide to buy a new device when this happens. Fortunately, with an LCD repair, you can fix the device without needing to replace it.

A black screen or black spots on your smartphone or tablet is an indication of a damaged LCD. Often with a bad LCD, a phone may still turn on and make noises, but there is no clear picture. This does not necessarily mean any other part of the phone is damaged and a simple screen replacement will get it functioning again. Sometimes it can mean a battery or other internal component is damaged. It is best to have a highly qualified phone repair technician diagnose what is wrong so the appropriate repair can be made.

Fortunately, your mobile device is fixable whether you cracked the glass or damaged the LCD. Stop by or call TCR: Triangle Cellular Repair at (919) 263-2699 for a free diagnostic and quick, affordable cell phone repair in Chapel Hill and surrounding areas. We’re always happy to help!

One of the most common misconceptions we see in the iPhone repair business is the true meaning and understanding of the definition of Non-Original LCD Screens and Original (OEM) LCD Screens.

If you’re a bit unsure, don’t panic! We’ll try to define the root differences between the various stock conditions in hopes that some sense of common knowledge is put in place.

Culture Differences – Most LCD screens are manufactured or reclaimed to be refurbished in the Asian market. Right out of the gate, there is a barrier of culture and language barriers that simply don’t align with other nations terms relating to cell phone replacement parts.

Marketing – Various marketing twists these terms just as much in an effort to advertise LCD screen parts in a manner that sounds more official and tends to keep the focus off some variant of the true condition.

For example: An “Original White LCD Display With Digitizer and Frame Assembly for iPhone 4S” listing title on eBay sounds like a 100% authentic LCD screen and must be “New” since the item condition reflects it being so.

– Other parts and components are reclaimed from broken LCD screens to make a refurbished LCD screen and could have other “aftermarket” parts used in re-manufacturing.

Brand CopyrightInfringement– Unless you’re licensed to sell Apple iPhone parts, you’re not technically allowed to advertise new “Original” parts, even if the item is new and 100% authentic. If you ever see the words “for iPhone 4s, 5, 5s, 5c” etc. at the end of the item title or advertising pitch, now you’ll know why. Apple has actually been fairly quiet about imposing seizures at US customs and online marketplaces for those who sell parts without authorization.

I scanned my inbox, Alibaba, eBay and Amazon for various sellers of iPhone LCD screens to get the most common terminology used in sellers’ offerings. I’ll list some of the most common terms used in product offerings below.

Notice how each and every word or term has a “positive” tone to. If there is a “Grade A” and “Grade A+,” shouldn’t there be a “Grade B” or “Grade A-” in the suppliers condition criteria? Probably, but you won’t ever see it. In grade school we went from an A to a B, not from an A to an “Almost Perfect.” Simply understand that as condition goes up or down, you’ll simply see a different “positive” word used causing more confusion to the condition you’re actually purchasing.

Terms like the above are mainly used to define one major component or part of the LCD screen rather than the word applying to all of the parts that make up an LCD assembly.

You get what you pay for. Most LCD suppliers are going to be in the same neighborhood in pricing. If you see a price that is significantly lower than another suppliers offering, you’re going to be giving up one of the following:

Let’s take an example of a suppliers offering for the iPhone 5 and dissect the probability of what we’re actually purchasing based on their advertised condition.

So if you went to buy the cheapest LCD screen from your supplier and asked “Are these new?,” they would most likely respond with “Yes.” In the example of Item #1, the LCD is new, but it’s a fake LCD that was made for the sole purpose of shaving cost. It will sacrifice something (if not a little bit of everything), including DPI and resolution, color brightness and quality of workmanship.

Asking very specific questions is half the battle when purchasing LCD screens from your supplier. The other half of the battle is getting an honest answer. Be very specific in the questions that you ask. I always try to use some common knowledge questions that don’t involve any of the terms used in conditions to eliminate any discrepancies in the answers you’ll receive. You should ask the following for questions specifically for all three major components of a typical LCD screen.

Digitizer – Is the Touch Panel manufactured by the same company that I would find on brand new in box phone that I purchased from an authorized Apple store?

Even after I get a “Yes” answer, I’ll follow up with “So if I bought a brand new in box sealed iPhone from Apple.com, the part I’m asking about would be 100% identical with no differences in quality or condition?”

The truth is: most buyers think they’re getting a new LCD screen when in fact 95% of the LCDs of replacement LCD screens for iPhone 4, 4s, 5, etc. are refurbished. The LCD screens that you purchase simply vary in the quality of the refurbishing process.

Toshiba and Sharpe are the only ones who made LCD screens for Apple iPhones and have not manufactured “new” ones for over a year. Those that they did manufacture were made for authorized service centers and over the counter replacements phones for post-paid carrier Asurion insurance customers only.

As of today’s date (Nov 11th), most LCD screen buyers are purchasing assemblies anywhere from $18-$26. A true new original would cost over $30 and actually be a bit hard to find. If you’re buying for under $30, you’re definitely buying a refurbished/reclaimed LCD screen.

When buying LCD screens and selling your broken LCD screens, many of the same terms are used, yet the industry treats these condition terms differently. Mainly, “Original” and “Non-Original” are used, yet the terminology of these conditions is different in regards to buying good screens and selling your bad ones.

Original– Never refurbished or reclaimed before. Example: if a retail customer bought a new iPhone 5 directly from Apple and it came to them brand new in the box, they cracked the screen, took it to your repair shop and you removed the screen to replace it; this LCD screen is original. Since the phone was opened and used as brand new in the box from official channels, the original (or FIRST) LCD screen that was on the phone has never been replaced.

Non-Original – The LCD screen has been refurbished or reclaimed from a broken LCD screen assembly at least one time. Non-Original does not mean fake. Illustrated below.

It can definitely start to get confusing when the same buying and selling words mean different things for the same product at a different stage in it’s lifecycle. When selling your smashed, cracked, damaged and broken iPhone and Android LCD screen assemblies, it’s usually best to translate “Original” and “Non-Original” to “Never Repaired or Refurbished” or “Has been Repaired or Refurbished” for easier understanding.

The easiest repair for mobile phones to complete is the LCD assembly replacement. This repair takes less than an hour and requires the least amount of technical ability. For some devices the LCD assembly can be replaced simply by removing a few screws and cables. Also, as the assembly includes the glass, touch screen and the LCD, you can be confident it will fix all common screen issues.

For iPad and other tablets, if the screen parts aren"t fused, then you can do a glass touch digitizer only replacement. Otherwise, the full assembly is the easiest repair. Either way, it usually takes 1-2 hours.

While it can be significantly cheaper repair, If the screen parts are fused, the screens must be heated to loosen the adhesive between the screen and LCD and you need special equipment. This includes all iPhone and most other mobile phones and some iPads or tablets. A heat gun or hair dryer can be used for this. The screen is then gently and very slowly pried apart from LCD. DIYers need to use care to insure the LCD is not damaged in the process.

Tip: Transferring the home button on an iPhone or an iPad can be the most tricky part. It takes a little patience and heat. You can purchase screens that have the home button pre-installed (along with other small parts) and this is the easiest of all repair. This can take 15-30 minutes. However, Touch ID function only works with the original home button so you have to transfer if you want to retain it. Note: some of the iPads don"t have a screen replacement option that includes the home button like the iPad Pro and newer iPad Mini. iPad 1st Gen to 9th Gen screens, have a home button pre-installed option.

Every iPhone LCD screen would go through 43 processes tests and elevate out 2nd first-class inspection to assure all the functions well according to our standards before logistics.

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It is easy to overlook the importance of having a quality LCD monitor when shopping for a new computer. But having a good LCD monitor can make all the difference in your computing experience, from playing video games to simply browsing the web. LCD screens come in various sizes, resolutions, and features, so it"s important to know what to look for when purchasing LCD 1602.

Visual quality is one of the most important aspects to consider regarding a liquid crystal display. The most basic aspect of visual quality is resolution – the number of pixels (tiny points of color) on display. A higher resolution will result in a sharper image with more detail. Other important aspects of visual quality include contrast ratio, which refers to the difference between the darkest black and the lightest white on the screen; brightness, which measures how bright the screen is; and color accuracy, which is how accurately colors are represented. Different TFT displays come with features such as dynamic contrast or advanced color settings, allowing you to customize the picture to your liking.

Regarding the LCD panel, response time is crucial to the display"s performance. Response time measures the time it takes for an IPS panel to change colors and is measured in milliseconds (ms). A raspberry pi screen faster response time means smoother motion and less blurring in video games, movies, and other graphics. It is important to note that response time is different than refresh rate, which is usually measured in Hertz (Hz).Refresh rate estimates how many times a monitor can update images per second, while response time measures how quickly each pixel can change colors. A lower response time will provide smoother images and better overall image quality.

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Mobile display technology is firmly split into two camps, the AMOLED and LCD crowds. There are also phones sporting OLED technology, which is closely associated with the AMOLED panel type. AMOLED and LCD are based on quite different underlying technologies, leading manufacturers to tout a number of different benefits depending on which display type they’ve opted for. Smartphone manufacturers are increasingly opting for AMOLED displays, with LCD mostly reserved for less expensive phones.

Let’s find out if really there’s a noticeable difference between these two display technologies, what sort of differences we can expect, and if the company marketing hype is to be believed.

It’s hidden in the name, but the key component in these display types is a Light Emitting Diode (LED). Electronics hobbyists will no doubt have played around with these little lights before. In a display panel, these are shrunk down dramatically and arranged in red, green, and blue clusters to create an individual pixel that can reproduce white light and various colors, including red, green, and blue.

The O part in OLED stands for organic. Simply put, there are a series of thin organic material films placed between two conductors in each LED, which is then used to produce light when a current is applied.

Finally, the AM part in AMOLED stands in for Active Matrix, rather than a passive matrix technology. This tells us how each little OLED is controlled. In a passive matrix, a complex grid system is used to control individual pixels, where integrated circuits control a charge sent down each column or row. But this is rather slow and can be imprecise. Active Matrix systems attach a thin film transistor (TFT) and capacitor to each LED. This way, when a row and column are activated to access a pixel, the capacitor at the correct pixel can retain its charge in between refresh cycles, allowing for faster and more precise control.

One other term you will encounter is Super AMOLED, which is Samsung’s marketing term for a display that incorporates the capacitive touchscreen right into the display, instead of it being a separate layer on top of the display. This makes the display thinner.

The major benefits from OLED type displays come from the high level of control that can be exerted over each pixel. Pixels can be switched completely off, allowing for deep blacks and a high contrast ratio. Great if you want a display capable of playing back HDR content. Being able to dim and turn off individual pixels also saves on power ever so slightly. The lack of other layers on top of the LEDs means that the maximum amount of light reaches the display surface, resulting in brighter images with better viewing angles.

The use of LEDs and minimal substrates means that these displays can be very thin. Furthermore, the lack of a rigid backlight and innovations in flexible plastic substrates enables flexible OLED-based displays. Complex LCD displays cannot be built in this way because of the backlight requirement. Flexy displays were originally very promising for wearables. Today, premium-tier smartphones make use of flexible OLED displays. Although, there are some concerns over how many times a display can flex and bend before breaking.

LCD stands for Liquid Crystal Display and reproduces colors quite differently from AMOLED. Rather than using individual light-emitting components, LCD displays rely on a backlight as the sole light source. Although multiple backlights can be used across a display for local dimming and to help save on power consumption, this is more of a requirement in larger TVs.

Scientifically speaking, there’s no individual white light wavelength. White light is a mixture of all other visible colors in the spectrum. Therefore, LCD backlights have to create a pseudo white light as efficiently as possible, which can then be filtered into different colors in the liquid crystal element. Most LCDs rely on a blue LED backlight which is filtered through a yellow phosphor coating, producing a pseudo white light.

The really complicated part comes next, as light is then polarized and passed through a crystal element. The crystal can be twisted to varying degrees depending on the voltage applied to it, which adjusts the angle of the polarized light. The light then passes through a second polarized filter that is offset by 90 degrees compared with the first, which will attenuate the light based on its angle. Finally, a red, green, or blue color filter is applied to this light, and these sub-pixels are grouped into pixels to adjust colors across the display.

All combined, this allows an LCD display to control the amount of RGB light reaching the surface by culling a backlight, rather than producing colored light in each pixel. Just like AMOLED, LCD displays can either be active or passive matrix devices, but most smartphones are active these days.

This wide variation in the way that light is produced has quite a profound difference to the user experience. Color gamut is often the most talked-about difference between the two display types, with AMOLED providing a greater range of color options than LCD, resulting in more vibrant-looking images.

OLED displays have been known for additional green and blue saturation, as these tend to be the most powerful colors in the sub-pixel arrangement, and very little green is required for white light. Some observers find that this extra saturation produces results that they find slightly unnatural looking. Although color accuracy has improved substantially in the past few years and tends to offer better accuracy for wider color gamuts like DCI-P3 and BT-2020. Despite not possessing quite such a broad gamut, LCD displays typically offer 100% sRGB gamut used by most content and can cover a wide gamut and most of the DCI-P3 color space too.

As we mentioned before, the lack of a backlight and filtering layers weighs in favor of OLED over LCD. LCD displays often suffer from light bleed and a lower contrast ratio as the backlight doesn’t switch off even when pixels are supposed to be black, while OLED can simply switch off its pixels. LCD’s filtering layer also inherently blocks some light and the additional depth means that viewing angles are also reduced compared to OLED.

One downside of AMOLED is that different LEDs have different life spans, meaning that the individual RBG light components eventually degrade at slightly different rates. As well as the dreaded but relatively rare burn-in phenomenon, OLED display color balance can drift very slightly over time, while LED’s single backlight means that color balance remains more consistent across the display. OLED pixels also often turn off and on slower, meaning that the highest refresh rate displays are often LCD. Particularly in the monitor market where refresh rates exceed 120Hz. That said, plenty of OLED smartphones offer 90, 120, and even 144Hz support.

There are some pros and cons to both technologies and some reasonable user preferences between the different color and contrast profiles. Although the prevalence of multiple display modes available in modern smartphones makes this somewhat less of an issue these days. However, the falling production costs and additional benefits of OLED displays have made them a more popular choice than ever across a wide range of price segments. OLED dominates the high-end smartphone and TV spaces owing to its wider color gamut, superior contrast ratio, while still supporting decent refresh rates. Not to mention its flexible characteristics for brand new mobile form factors.

Major display manufacturers, such as LG Display and Samsung Display, are betting big on OLED technology for the future, making major investments into additional production facilities. Particularly when it comes to its use in flexible display technology. The AMOLED panel market is expected to be worth close to $30 billion in 2022, more than double its value in 2017 when this article was first published.

That said, developments in Quantum Dot and mini LED displays are closing the already small performance gap between LCD and OLED, so certainly don’t count LCD out of the race just yet.

If you need to repair your phone screen you may have been looking into different types of screen replacements. You’ve probably heard of the acronyms LCD and OLED in TVs before, but what are the differences between LCD and OLED screens and what will be best for your phone?

LCD or Liquid Crystal Display has been the standard for computer, tablet, and phone screens for the past decade. These screens offer great brightness, high definition, and are becoming relatively inexpensive. We tend to see LCD screens on the less expensive cell phone models, today. LCD screens can have great HD quality and have good performance in direct sunlight but tend to be more inefficient when it comes to power consumption compared to an OLED screen.

Over the past few years, many companies have been switching to newer screen technology: OLED displays. OLED, which stands for organic light-emitting diode, is being used on all of the latest flagship devices. They tout amazing contrast of color, they’re lighter and flexible and tend to be more efficient than LCDs. OLED technology is being used for curved edge phones like theGalaxy S10+and theGalaxy S20, S20+, and S20 Ultra 5G. OLEDs have also been used in folding smartphone displays like theSamsung Galaxy Fold, the newMotorola razrsmart flip phone, and theSamsung Galaxy Z Flip.

OLED displays are being used by Apple in their iPhone 11 Pro Max, 11 Pro, XS Max, XS, and X. iPhone X flagship series and newer will come with OLED. Both flagship Samsung Galaxy S and Note Series have OLED displays as the standard on all recent devices including the Samsung Galaxy S10 and Note 10 series, S9+, S9, Note 9, S8, S8+, Note 8, and so on. These phones also all have OLED displays: LG V40, LG V30, Huawei P30 Pro, Huawei Mate 20 Pro, OnePlus 6T, and the Motorola Moto Z2 Force Edition.

The iPhone 11 and the XR still use LCD displays as well as all other iPhones that came before the X series including the iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, and so on. Basically, any iPhone with a Home Button will have a LCD screen on it. The LG G7 ThinQ, LG G6, Moto E5, and Moto E6 all have LCD displays as well.

When getting your device repaired, it is a good idea to use the display type that was originally installed on your phone. For example, if you have the iPhone X, which comes with an OLED display, ideally, you will want to get an OLED replacement. This will keep your phone running as efficiently as possible. If you need a more economical solution it is sometimes possible to get an LCD replacement, but keep in mind that they can drain your battery faster and may not have the same color contrast and may not be optimized for your phone.

One of the easiest ways to determine which display type you have is to go to a true black screen – you can search for this on Google Images. If your display type is LCD your pixels will still be displaying a dark gray light. If you have an OLED display the screen will be totally black. It is easier to tell when this experiment is performed in a dark room. You can also searchGSMArenafor your phone and then view its display type.

In most cases, yes, you can trade-in a repaired iPhone with a non OEM display on it. However, depending on the company you choose to trade your iPhone in with the trade-in price may decrease due to a non OEM display. For example, at SmartphonesPLUS you can trade in a phone that has a replacement screen on it or with other replacement parts as well.