types of laptop display screens manufacturer

Ans: We source laptop screens directly from the manufactures like Samsung, LG, AUO, Sharp, ChiMei, Chunghwa, Toshiba and many more. We only sell genuine high quality screens which are exactly same installed in laptops by laptop manufacturers like Apple, Dell, HP, Sony, IBM Lenovo, Asus, Acer, Samsung, Packard Bell, MSI and Toshiba etc.

Ans:Laptop screen manufacturers release new model (version) of LCD screens from time to time. New model may have better quality, updated electrical parameters etc. As a result, there is may be hundreds of compatible LCD models available in the market. It will require millions of investment to stock every model of the screen. There is also possibility exact model may be outdated and no longer available in the market or price is very expensive.

We offer replacement screens which are 100% compatible with original LCD screen. It may be cheaper in price. This allow us to offer you better deals on new LCD models.

CCFL (Cold Cathode Fluorescent Light - High Intensity Discharge Lamps) was mostly used in older laptops. It comes in two types 1-CCFL or 2-CCFL and also required an inverter to power the lamps. 1-CCFL or “single backlight” contains one bulb to light it up and a pair of wires at the bottom. It has one white inverter connector that is used for plugging into inverter board. 2-CCFL or "dual backlight" contains 2 bulbs, has 2 inverter pair cables as well as 2 inverter connectors.

LED (Light Emitting Diodes) type of lighting has been widely used since the early 2010s. LED’s are becoming more famous because of higher efficiency in terms of size, resolution, power consumption, heat generation etc.

Ans: Upgrading CCFL to LED backlight is generally not possible. It is so because these screens have totally different connectors and power supplies which makes them incompatible. However, there are cable adapters available that allow LED screen to work with CCFL screen. These adapters are only compatible with certain laptop models. For the rest, in order to change or upgrade CCFL to LED, the motherboard will have to be replaced, which may result even more than the cost of the laptop.

Question:Laptop screen surface Glossy vs Matte? Ans:Laptop screen surface play a key factor while we are doing some professional work on laptop or playing games, watching movies, or sports etc. Laptop manufacture sell laptop with Gloss or Matte finish display depending on type of the laptop. When you purchase a replacement laptop screen, you might be offered with a choice. If original (faulty) screen has matte finish, you can replace it with a new one that is glossy, and same can happen vice versa.

These screens shine like a mirror if blank and are highly effective for indoor work. These are meant for having good visibility in darker environment. You can watch videos and play games with more vividly colours. So there is a sharp and bright colour that you can look for a good work.

If glossy screens are used in daylight or in very well lit environment then you might not be able to catch a glimpse of what is going on the screen. It is something problematic to use this otherwise valuable version in the screen introduction.

Matt finish screen have rough surface. It does not glow or shine, and that is why it is most suitable for the office environment where there is a strong light. It can be easily used in the daylight, and not causes a reflection in the eyes.

All screens are prepared with the finishing touch of Polarized Plastic, and it is the prime factor that determines whether the screen would be glossy or matte at end. The backlighting concept has made glossy screens popular as gloss panels are able to produce sufficient light that there is no room left for the external light that reflects form screen itself.

The fact is that most of laptops come with glossy display now but it doesn’t mean that matte finish is not in demand. You can easily replace one with another.

Laptop manufacturers have given different names for their glossy display. For example, Acer has named its glossy laptop screen as CrystalBrite, Asus, as Colour Shine and Dell as True Life.

Different names are given to different types of resolution by the LCD industry. These are identified with abbreviations. For example: 1366x768 is given the name HD (High Definition) and 1920x1080 for FULL HD. The latter has a very high resolution and displays an image that is twice the amount of pixels as compared to an HD screen.

This kind of measurement denotes the pixels or dots horizontally times by the pixels or dots vertically. For example 1366x768 means 768 horizontal lines each containing 1366 pixels and giving a total pixel count of 1049088 which is just over a million pixels to make up the entire image.

Another way is to go through laptop manual. It is always mentioned in the specifications section. You can also go to manufacturer’s website and search laptop model and its specification.

Retina Display is used by Apple for screens having a higher pixel density. For the third generation MacBook Pro (15”), the resolution is 2880X1800 which makes the total pixel count of 5,184,000 and for the MacBook Pro (13”), the resolution is 2560X1600 making the pixel count to 4,096,000. With such high resolution, the quality of display is very high.

Leading laptop manufacturers are launching laptops with ultra HD screen which has a very high resolution of 3840x2160p which is four times higher than that of the standard Full HD screen.

Ans: Laptop screen display upgrade or downgrade is generally not recommended. The reason being the resulting distorted display. Problems like improper working of video cards may occur. Video cards are used for image processing and get overloaded when connected to a higher resolution LCD screen because higher processing power requirement. So improper working of video card will directly affect the image display. But you can always replace an old laptop screen with a new one if both of them have same resolution and other specification.

Ans:If you want to buy new screen with screen part number, you will need exact part number of the screen. Sometimes it is tricky to find screen part number. Usually screen part number is written either on back side of screen or inverter. The most important information is the manufacturer’s code and the screen size. Fortunately, the information for both can be found in one place, on the back side of the screen itself. For example let’s say the code you find on the back of your laptop screen is LP156WH2(TL)(A1).

This translates into having a LG Philips 15.6 inch screen. The “LP” is the code for LG Philips and the “156” is the code for the screen size of 15.6 inches. You’ll often see this code next to or above the UPS bar code for the screen.

A list of LCD screen manufacturers along with their abbreviations is given below. The first few letters of the model number correspond to the manufacturers.

We sell brand new screens and normally the error ratio is less than 0.1%. "Screen display up to 2 fixed pixels is within industry standards and is therefore considered acceptable display” However if there is any issue, please email us and we will try to resolve it.

Different laptop manufacturers have different dead-pixel policies. Here are the links to some leading laptop manufacturer’s dead pixel policy which will give you a better understanding:

Laptops come in all shapes and sizes and with dozens upon dozens of different hardware configurations, so choosing the right one for your business can be a bit tricky. After you’ve compared the size of the hard drive and the speed of the wireless network card, consider the differences in laptop display types and what you need for your company. Understanding the basics of laptop displays will help you make a smart choice.

Size Laptop displays range from the very small -- the 10-inch “netbook” computers designed primarily for surfing the Internet and basic word processing -- to the substantial -- 17-inch-or-greater screens that are the size of a desktop monitor. There are advantages to both sizes -- and the sizes in between -- but it all depends on what you need the laptop for. Bigger screens are handy for graphics-editing software and video work, whereas smaller displays make your laptop lighter and easier to place into smaller bags -- a plus for traveling.

Display Types A lot of letters get attached to a laptop display: LCD, LED, VGA, CCFL, XVGA, VGA. It’s important to keep those straight. Laptop monitors are all liquid-crystal displays (LCDs) and have two kinds of light sources – LED or CCFL. CCFL, or cold cathode fluorescent lamps, are a lighting technology used to project an image on the LCD. Light-emitting diodes (or LEDs) also emit light, but in a different way than an CCFL screen. CCFL tend to project light from a bulb in the back of the screen, whereas LEDs can be placed at intervals around the screen, making displays thinner and lighter.

Resolution In addition to the backlight technology, laptop displays are measured by their resolution -- the number of pixels they can display. Computer displays follow a rating system anchored on “VGA,” which stands for “video graphics array.” VGA displays show information at 640 by 480 pixels. XGA (extended graphics array) displays at 1024 by 768 pixels, and modern laptop displays range from WXGA (wide XGA), at 1280 by 780 pixels, through to QXGA (quantum XGA), at 2048 by 1536 pixels.

One Display or Two? In addition to the built-in display on laptops, some have a video-out option that allows you to attach a second display to your computer. When buying a laptop, consider that most laptops have a high-definition video out connector, to run your laptop to an HD TV via an HDMI cable, and a connector for a traditional computer monitor. If the work you do is best done over two screens, look for laptops with video out.

STONE Technologies is a proud manufacturer of superior quality TFT LCD modules and LCD screens. The company also provides intelligent HMI solutions that perfectly fit in with its excellent hardware offerings.

There is also a downloadable design software called STONE Designer. This is a completely free GUI design software you can use to create responsive digital module-ready user interfaces.

You can also use a peripheral MCU to serially connect STONE’s HMI display via TTL. This way, your HMI display can supply event notifications and the peripheral MCU can then execute them. Moreover, this TTL-connected HMI display can further be linked to microcontrollers such as:

Becoming a reputable TFT LCD manufacturer is no piece of cake. It requires a company to pay attention to detail, have excellent manufacturing processes, the right TFT display technology, and have a consumer mindset.

Now, we list down 10 of the best famous LCD manufacturers globally. We’ll also explore why they became among the top 10 LCD display Manufacturers in the world.

BOE Technology Group Co., Ltd., founded in April 1993, is an IoT company providing intelligent interface products and professional services for information interaction and human health. BOE’s three core businesses are Interface Devices, Smart IoT Systems, and Smart Medicine & Engineering Integration.

Interface Devises Business includes Display and Senor, Sensor, and Application Solutions. As a leading company in the global semiconductor display industry, BOE has made the Chinese display industry develop from scratch to maturity and prosperity. Now, more than one-quarter of the global display panels are made by BOE, with its UHD, flexible display, microdisplay, and other solutions broadly applied to well-known worldwide brands.

Smart IoT Systems Business includes Intelligent Manufacturing Services, IoT Solution, and Digital Art IoT Platform. BOE provides integrated IoT solutions in smart retail, smart finance, digital art, business office, smart home, smart transportation, smart education, smart energy, and other fields. In the field of digital art, BOE has launched its digital art IoT solution – BOE iGallery, realizing the perfect combination of technology and art. For smart retail, BOE provides IoT solutions in price management, shelf management, and customer behavior analysis to achieve seamless online and offline convergence.

In 2019, BOE’s yearly new-patent applications amounted to 9657, of which over 90% are invention patents, amounting to over 70,000 usable patents in total. Data from IFI Claims also shows that BOE has ranked 13th among the Top 50 USPTO (The United States Patent and Trademark Office), Patent Assignees, in 2019. According to the 2019 International PCT Applications of WIPO, BOE ranked No.6 with 1,864 applications.

LG Display is a leading manufacturer of thin-film transistor liquid crystal displays (TFT-LCD) panels, OLED, and flexible displays.LG Display began developing TFT-LCD in 1987 and currently offers Display panels in a variety of sizes and specifications using different cutting-edge technologies (IPS, OLED, and flexible technology).

LG Display now operates back-end assembly plants in South Korea, China, and Vietnam. In addition, LG Display operates a sales subsidiary with a global network to effectively serve overseas markets.

Samsung Electronics is South Korea’s largest electronics industry and the largest subsidiary of the Samsung Group. In the late 1990s, Samsung Electronics’ independent technology development and independent product innovation capabilities were further enhanced. Its product development strategy not only emphasizes “leading the technology but also using the most advanced technology to develop new products to meet the high-end market demand at the introduction stage”.In addition to the matching principle, it also emphasizes the principle of “leading technology, developing new products with the most advanced technology, creating new demand and new high-end market”.

With innovative and differentiated technologies, QINNOOptoelectronics provides advanced display integration solutions, including 4K2K ultra-high resolution, 3D naked eye, IGZO, LTPS, AMOLED, OLED, and touch solutions. Qinnooptoelectronics sets specifications and leads the market. A wide range of product line is across all kinds of TFT LCD panel modules, touch modules, for example, TV panel, desktop and laptop computer monitor with panels, small and medium scale “panels, medical, automotive, etc., the supply of cutting-edge information and consumer electronics customers around the world, for the world TFT – LCD (thin-film transistor liquid crystal display) leading manufacturers.

AU Optronics Co., LTD., formerly AU Optronics Corporation, was founded in August 1996. It changed its name to AU Optronics after its merger with UNIOPtronics in 2001. Through two mergers, AU has been able to have a full range of generations of production lines for panels of all sizes.Au Optronics is a TFT-LCD design, manufacturing, and r&d company. Since 2008, au Optronics has entered the green energy industry, providing customers with high-efficiency solar energy solutions.

Sharp has been called the “father of LCD panels”.Since its founding in 1912, Sharp developed the world’s first calculator and LIQUID crystal display, represented by the living pencil, which was invented as the company name. At the same time, Sharp is actively expanding into new areas to improve people’s living standards and social progress. Made a contribution.

Sharp is committed to creating a unique company, creating life in the 21st century through unparalleled “originality” and “sophistication”, and is a sales company, operating video, home appliances, mobile phones, and information products throughout the major cities of the country. Establish a business point, establish a perfect after-sale service network, satisfy consumer demand.

Toshiba is a famous multinational company with a history of 130 years. It covers a wide range of businesses, including social infrastructure construction, home appliances, digital products, and electronic components. It covers almost every aspect of production and life. Toshiba has the largest research and development institution in Japan. Through unremitting innovation and development, Toshiba has been at the forefront of science and technology in the world.

From the introduction of Japan’s original washing machines, refrigerators, and other household appliances, to the world’s first laptop, the first 16MB flash memory, the world’s smallest 0.85-inch HDDs; Create advanced HDDVD technology; Toshiba created many “world firsts” in the research and manufacture of new SED displays and contributed to changing people’s lives through constant technological innovation.

Kyocera was founded in 1959 as a manufacturer of technical ceramics. Industrial ceramics is a series of advanced materials with unique physical, chemical, and electronic properties. Today, most of Kyocera’s products are related to telecommunications, including semiconductor components, RF and microwave packaging, passive electronic components, wireless mobile phones and network equipment, crystal oscillators and connectors, and optoelectronic products for optoelectronic communication networks.

Tianma microelectronics co., LTD., founded in 1983, the company focus on smartphones, tablets, represented by high order laptop display market of consumer goods and automotive, medical, POS, HMI, etc., represented by professional display market, and actively layout smart home, intelligent wear, AR/VR, unmanned aerial vehicles (UAVs) and other emerging markets, to provide customers with the best product experience.IN terms of technology, the company has independently mastered leading technologies such as LTPS-TFT, AMOLED, flexible display, Oxide-TFT, 3D display, transparent display, and in-cell/on-cell integrated touch control. TFT-LCD key Materials and Technologies National Engineering Laboratory, national enterprise Technology Center, post-doctoral mobile workstation, and undertake national Development and Reform Commission, The Ministry of Science and Technology, the Ministry of Industry and Information Technology, and other major national thematic projects. The company’s long-term accumulation and continuous investment in advanced technology lay the foundation for innovation and development in the field of application.

Identifying the model number of your laptop lcd screen is easy once armed with some basic information. The table below shows popular LCD manufacturers and their corresponding model identifiers. Use the example below to match your model number, you"ll also need to look for any suffixes or version numbers to identify the exact model.

After choosing what CPU, GPU, RAM, and storage you need in a laptop, sometimes the next in line is its display. Now, depending on what you’ll use it for (maybe competitive gaming, maybe content creation or maybe even both), there are a lot of factors to be considered. We know most of you have already come across terms like refresh rate or response time, or TN panels, some may have even asked the question “What in the world is G-sync?” Well today, we’ll answer those questions for you in our Laptop Display 101: Display Types guide. Alright then, let’s go find that display you need.

Let’s discuss the most commonly known factor in choosing a display, its display type. Similar to mobile phones, laptops are also equipped with different kinds of panels, though they have fewer options. There are currently three display types available for laptops, and the third one only recently popped up in the market — Twisted Nematic (TN), In-Plane Switching (IPS),and Organic Light-emitting Diode (OLED). Each of these panels have their own advantages and disadvantages.

Before we continue, let’s get this out of the way first; there is no clear “best display type” among the three, as each cater to different needs and audiences.

Let’s also be clear with a few terms, namely Response Times, Refresh Rates, and G-Sync. Response times dictate the speed in which a pixel can display a change from either black to white, or from one shade of gray to another. It is often confused with input lag, which is the measurement of how fast a peripheral’s input, say a mouse or a keyboard, registers on the display.

Response time affects visuals on a display more, and is especially important when there is something fast happening on the screen. Response times also affect whether or not a display experiences “ghosting”, a phenomenon where trails of a moving object become visible on the screen because the pixels took to long to shift. This happens more often with longer response time displays.

Refresh rate, on the other hand, is the number of times per second that the screen refreshes the image on it. Refresh rates are different than frame rates, which is a famous method of measurement in benchmarking the performance of devices. That is because refresh rate actually dictates the maximum frame rate a screen can display, which is why it’s better to have higher refresh rates when using powerful devices. For example, if you’re averaging >100fps but the display’s refresh rate is only 60Hz, then all you’re actually seeing is 60fps.

Lastly, G-Sync, Nvidia’s proprietary display technology. G-sync synchronizes the refresh rate of your display to the framerate of your Nvidia graphics card or chip. This is done to eliminate visual artifacts, screen tearing, input lag, and stuttering. The end result is smoother gameplay and visuals. The counterpart to this on AMD’s side is Freesync technology, which pretty much does the same thing except for Radeon cards and Freesync supported displays. Although, FreeSync is not yet available on laptops.

First up, is Twisted Nematic or more commonly known as TN. TN panels are actually the oldest of the three display types, as they have been widely used since the 1980’s and were even considered as a technological breakthrough in display technology during its early development. Of course, today it now has fierce competition from other display types, but it still remains as one of the most widely used panels for laptops, especially in the entry-level and budget segment.

The main reason why TN panels are so famous is that they are cheaper to manufacture than the two other types. There are more expensive TN panels on the market though, and these are the high-quality ones that are mainly used in some high-end laptops and gaming monitors. It is also widely regarded in the gaming community and is one of the go-to panel types for professional and competitive gaming. That is because TN panels can have high refresh rates and low response times at a much lower price compared to IPS and OLED.

While TN panels are great for competitive and professional gaming, it’s generally not good for content creation, media consumption or even on some games like RPGs or Adventure games, which have vivid sceneries. This is because TN panels have poor viewing angles and bad color reproduction and accuracy. There are high-quality TN panels with excellent color reproduction and accuracy and overall better viewing angles, but they still can’t compete with the likes of IPS or OLED in these regards. Not to mention, they will cost an arm and a leg.

Okay next up, is In-Plane Switching or more commonly known as IPS. There was a need to address the underlying issues with TN panels, namely their poor viewing angles and subpar color reproduction and accuracy.  So, what developers came up with was IPS, a panel that can maintain all-around good viewing angles and consistently provide excellent color reproduction and accuracy. The drawbacks were that response times became longer and refresh rates got capped at a certain point (60Hz max). Only recently did IPS panels with >60Hz refresh rates start to pop up. Apart from that, these panels are also more expensive to manufacture than TN, which is why most laptops with IPS displays are in the upper-mid range to high-end category.

IPS panels are a good fit for content creation and media consumption due to their improved viewing angles, color reproduction, and accuracy. They also offer a good gameplay experience for games that take advantage of better colors such as RPGs and Adventure games. Although, they are no longer much of a choice for competitive and professional gamers due to their slower response times and lower refresh rates. There are IPS panels on the market now with higher refresh rates but, like high-quality TN panels, these cost an arm and a leg.

Organic Light-emitting Diode or OLED for short is a type of display that has been available on the market for quite some time already. It has been more utilized in TVs and mobile phones rather than in mobile PCs. It has only recently made its way into the laptop market. OLED displays are like IPS panels, but on steroids. This means that they have even better color reproduction and accuracy while maintaining good viewing angles. Blacks are also more vivid on OLED displays more than on any other kind of panel.

The downsides to OLED displays is that they draw more power and are prone to display burn-in. Burn-in is when an image, shown for prolonged periods of time, remains on the screen despite no longer being displayed. A good example of this is the Windows taskbar — when burn-ins occur in a display, the taskbar will remain on the screen despite shifting to other tasks like watching movies or playing games. Although this happens less frequently now due to incremental improvement, the risks of it happening are still there, so do operate OLED displays with care.

Just like with IPS panels, OLED displays are perfect for content creators, movie lovers, and those who enjoy playing games that do not require fast response times. Still, the biggest caveat is that OLED displays are even much more expensive than IPS.

Then we have OLED displays, which is essentially IPS on steroids, but carries the risk of burn-in, and is more power-hungry. Devices with these panels are the most expensive of the bunch, so these are only for consumers with very deep pockets.

We have created guides for gaming laptops and editing laptops should you require deeper information in choosing a device. Since there are no major updates in hardware just yet, these guides can still be considered relevant:

There are two basic technologies used in LCD panels for laptops: TN and IPS. TN panels are the most common, as these are the least expensive and tend to offer faster refresh rates. TN panels have some disadvantages, including narrow viewing angles and colors. TN panels offer less overall color, but this typically only matters for graphics designers.

IPS offers higher color and viewing angles. However, these screens tend to cost more, have slower refresh rates, and are not as suited for gaming or fast video.

IGZO is a new chemical composition for building displays that replaces the traditional silica substrate. The technology allows for thinner display panels with lower power consumption. IGZO will eventually be a major benefit for portable computing, especially as a way to combat the extra power consumption that comes with higher-resolution displays.

OLED is another technology showing up in some laptops. It has been used for high-end mobile devices such as smartphones for some time. The primary difference between OLED and LCD technologies is that OLED doesn"t require a backlight. Instead, pixels generate light from the display, which gives these screens better overall contrast ratios and color.

Touchscreens are becoming a major feature of many Windows-based laptops. This technology replaces the trackpad for navigating the operating system. Touchscreens generally add to a laptop"s cost and draw more power, meaning these laptops have less running time on batteries than a non-touchscreen laptop.

Some touchscreen laptops come with a display that can be folded or spun around, offering a tablet-style experience. These are often referred to as convertible or hybrid laptops. Intel"s marketing refers to such machines as 2-in-1 designs. The important thing to consider with these types of laptops is the ease of use when in tablet mode, based on screen size. Often, the smallest screens, such as 11-inch screens, work best for these designs, but some companies offer them up to 15 inches, making the device more difficult to hold and use.

Most consumer laptops tend to use glossy coatings over LCD panels, letting more color and brightness come through to the viewer. The downside is that these screens are difficult to use with certain types of lighting, such as outdoor lighting, without producing a large amount of glare. These look great in home environments where it is easier to control glare. Most display panels that feature a touchscreen use a form of glossy coating.

While most consumer laptops feature glossy coatings, corporate-style laptops generally feature anti-glare or matte coatings. These coatings reduce the amount of external light reflecting on the screen, making these laptops better for office lighting or outdoors. The downside is that the contrast and brightness tend to be muted on these displays.

In the past, graphics processors weren"t much of an issue for consumer laptops. The majority of users didn"t do much graphically that required 3D graphics or accelerated video. This has changed as more people use their laptops as their primary computers.

Recent advancements in integrated graphics have made it less necessary to have a dedicated graphics processor, but these can still be beneficial. A dedicated graphics processor is helpful for 3D graphics (gaming or multimedia) or accelerating non-gaming applications, such as Photoshop. Integrated graphics also offer improved performance, such as the Intel HD Graphics, which supports Quick Sync Video for accelerated media encoding.

AMD and NVIDIA have technologies that can allow certain graphics processors to run in pairs for additional performance. AMD"s technology is referred to as CrossFire, and NVIDIA"s is SLI. While the performance is increased, battery life for such laptops is reduced due to the extra power consumption.

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There are a number of screen manufacturers. The following link should help. However if you do not want to pull the housing off the screen to find out the manufacturer there is one other way that should work. Download SiSoftware Sandra Lite. It can tell you a great deal about your system. Click on Display and Video Adapters. Then select Monitor Panel from the pulldown menu. It will display the manufacturer. Which, in the case of my Inspiron 5575, is BOE.

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If you’re in the market for a laptop, one of the things you should consider is the type of screen it utilizes. Not all screens are made equally, and a poor quality screen can be a deal-breaker. After all, you will be staring at it for extended periods of time. Unfortunately, making sense of all the acronyms, ratings and seemingly meaningless numbers can be confusing. Don’t know the difference between an IPS and TN display? Confused by how many “nits” your screen should be? You’ve come to the right place. Here are the things you should take note of when choosing your laptop screen.

The first thing you’ll want to consider when it comes to a laptop screen is how big you want to go. Laptop screens are measured diagonally from corner to corner. They range in size; however, most fall in the 13- to 15-inch category, but you can find laptops that are smaller (11- to 12-inches). Conversely, you can find laptops with significantly bigger screens. The most common is 17 inches; however, there are some that are even larger.

Generally, 13- to 15-inch screens are the most common. The weight of the laptop does increase with the screen size, so if you use your laptop mostly on the go, you’ll probably want to stick to a 13-inch model. If your laptop primarily lives at home, then you’ll probably want to opt for a 15-inch screen, as the extra real estate will make working on it easier on the eyes.

All laptop screens are made of pixels. Pixels are essentially tiny individual dots that show different elements of your laptop’s screen. Working in unison, these pixels are able to display the image you see on your laptop screen. The more pixels you have, the higher the screen’s resolution. A higher resolution screen means a sharper, clearer picture.

When shopping around, you’ll see laptops with screens of varying resolutions. We recommend opting for a machine that has a screen that is 1920 x 1080 or higher. You will come across screens that have a lower resolution. Typically, these machines will be at a lower price point. This is very much a case of “you get what you pay for.” Screens with higher resolutions have more pixels, which means they are able to show more content.

You can also opt for laptop screens with higher resolution screens, like 2560 x 1440 (2K) or 3840 x 2160 (4K). While these higher resolutions will offer a sharper display, they can consume more power.

When it comes to laptop screens, there are a variety of panels that a manufacturer can choose from, and they all come in at different price points. It should come as no surprise that higher quality panels are more expensive, and that extra cost is passed on to the consumer.

TN (Twisted Nematic) – This is the oldest panel type, and they are easy and cheap to produce. As a result, TN screens are often found in lower-end devices. Generally, they suffer from poorer viewing angles and less accurate color reproduction. That being said, TN panels are known for relatively high refresh rates and being more budget conscious.

IPS (In-Plane Switching) – These panels sought to remedy the problems with TN screens. IPS panels have excellent viewing angles and have better color accuracy. As you might have guessed, IPS panels are more expensive to produce. Therefore, you generally find them in mid- to upper-range devices.

OLED (Organic Light Emitting Diode) – All displays are made up of pixels with a backlight that allows the user to see the display. With traditional LED displays, the backlight illuminates all of the pixels. This can result in some colors looking washed out and blacks looking more grey. OLEDs on the other hand, are able to turn the backlighting of each individual pixel on and off. This results in more accurate color reproduction and true blacks. While OLED screens are common on smartphones, they’re a bit rarer on laptops. That being said, many manufacturers offer laptops with OLED screens; however, they tend to be the more top-of-the-range offerings.

How bright your laptop screen is has a significant impact on the usability of your laptop. Using a laptop outside or in a well-lit area can result in a washed-out display. Poor screen visibility can ruin your productivity, so having a screen that is outdoor readable is a must. This means your screen must be able to become brighter than the light around it in order to be readable.

Screen brightness is measured in “nits.” To keep things simple, just remember that the higher the nits, the brighter the screen will be. With laptops, the general consensus is that the screen should be at least 250 nits. That being said, if you tend to use your laptop outside or in direct sunlight, you’ll probably want to opt for a laptop capable of emitting more than 300 nits. There are displays that boast significantly more nits; however, a brighter screen will consume more power, resulting in faster battery drain.

The refresh rate will determine how smooth the picture is. In order for you to experience a smooth picture, your screen must “redraw” what is being displayed many times per second. How fast your screen is able to do this (measured in hertz) is known as the refresh rate.

Computer displays start with a refresh rate of 60Hz. This ensures smooth motion. Anything less and operations like moving the mouse would appear jerky. Some laptop models boast significantly higher refresh rates – 120, 144, 240, even 360Hz displays can be found in the wild. Laptop screens with higher refresh rates are usually found in more expensive models. However, costing more money doesn’t necessarily mean you’ll benefit.

The average laptop user probably won’t notice much of a difference between the standard 60Hz and one that is higher. That being said, if you are a gamer, you’ll notice sharper visuals. Whether you’ll benefit from a higher refresh rate depends on what you’re going to do with your machine and your own individual perception. Some people swear by a higher refresh rate, while others shrug their shoulders. It’s all in the eye of the beholder.

This page provides details on the various laptop display technologies used with DOS laptop, portable and luggable computers. It should be read in conjunction with the Graphics Cards page as well as my CRT Monitors page for completeness.

These days we take it for granted that our modern laptops have colour high-resolution screens. Back when manufacturers were trying to make the IBM PC or compatible more transportable (lightweight), installing a Cathode Ray Tube (CRT) miniature monitor into a case made it preventatively heavy. They turned to Liquid Crystal Display (LCD) technology, and whilst it was hugely expensive to make large LCD screens, as popularity of mobile computing grew, prices fell, and so it more or less stuck throughout the DOS era in one guise or another.

LCD technology was another that first arose in the 1960s. It was tremendously energy-efficient, and required very little space so it suited mobile devices well. Since LCDs don"t produce any light themselves (unlike gas plasma), they really needed what was to be called a backlight (literally, a light shining from the back of the screen) to really make the screen more readable. Backlit LCD displays really didn"t start to appear until 1988 - before then your laptop computer"s LCD display was like a large calculator screen using nothing more than a reflective layer behind the liquid crystals to reflect ambient light! There was also the concept of "sidelit" displays where rather than shining a light from behind the screen, the display would have a light on each side.

Unfortunately, even with a backlight, LCD displays have poor contrast and a slow refresh rate, which would produce a "ghosting" effect whenever the displayed content was scrolling or moving.

Gas plasma displays were first used in the 1960s. In a gas plasma display, each pixel is illuminated by a tiny bit of plasma (charged gas). Gas plasma displays are thinner than CRTs due to there being no need for an electron gun at a certain distance from the back of the screen, and are much brighter than LCD displays. The gases used in a gas plasma display are neon and xenon, both inert, and these are sandwiched in between two plates that have been coated in a conductive print - one of which contains vertical lines, and the other, horizontal lines. So together they form a grid. When electric current is passed through the conductive prints on these two plates the gas at the point they meet glows, which is seen by the user as a single pixel lighting up. Despite being particularly bright and produce a nice sharp image, gas plasma displays use a lot of power, making them pretty unsuitable for portable computing, but it made a comeback with flat-panel TVs many years later!

Invented in 1983, the STN is a type of monochrome passive-matrix LCD display. The "passive" in the wording here means that each pixel must maintain its state (off or on) without active driving circuitry until it can be refreshed again. In a Twisted Nematic (TN) display the liquid crystal molecules have an electric field applied to them to realign the molecules to either be off (twisted 90 degrees, electric field off), or on (untwisted, electric field on). Sadly due to limitations/thresholds of passive-matrix addressing, TN displays could only be so large. In a supertwist nematic display, the molecules are twisted 180 to 270 degrees which allowed for more rows and columns, hence higher resolution displays.

All STN displays were monochrome until NEC launched the first colour laptop, the ProSpeed CSX, in October 1989. Several other laptop manufacturers had been working on colour screen technology at the same time, so 1990 saw many more colour laptops arrive on the market.

One advantage of STN displays is that they require no backlight - they are still readable under direct sunlight with a reflective layer behind the display. Unfortunately, because they are still passive matrix, the ghosting effect seen with LCD monochrome displays is still present.

To overcome the slow refresh rate of STN screens, DSTN technology splits the screen into two halves, where each half is simultaneously refreshed, giving a much faster overall refresh rate.

Sadly, DSTN still suffers from the same inherent problems of any passive-matrix display, like low contrast (typically a DSTN display has a contrast ratio of 15:1 compared to TFT displays which are 40:1 or better), and washed-out colours.

TFT, also called "active-matrix" displays work on the basis of each individual pixel being switched on or off by up to four transistors. The "active" in the name is because each pixel also has a capacitor that actively maintains the pixel state. Whilst much more expensive than STN/DSTN displays, they overcome all the problems of a passive-matrix display. They have a much higher contrast ratio and a fast refresh rate.