wuxga vs lcd display made in china

It is such a waste to only use the LCD for desktop computers. Connecting it up with a laptop PC has many merits for the user and can also bring out the latent power of the laptop.

Note: Below is the translation from the Japanese of the ITmedia article "The dual display in Windows 7 is now even more convenient" published March 1, 2010. Copyright 2011 ITmedia Inc. All Rights Reserved.

Most laptops have a handy "external display output" port. It can be used in the home to transmit videos played on the laptop to a large screen TV or, in the office, to connect up with a projector for presentations. In fact, there must be many users who already use it like this. However, people tend to use just the laptop in their daily routine and there are probably not so many cases where they use the external display output.

A laptop can be put to more effective use if it is connected to an external LCD. The photograph shows an EIZO 23-inch wide-screen LCD connected by HDMI to a Sony VAIO C laptop (VPCCW28FJ/R).

This time we would like to suggest a style that can be used in both the home and the office, where a laptop and stand-alone LCD remain connected. A laptop already has an LCD, but using it with an additional stand-alone LCD offers various merits. Not only does it make the laptop environment more pleasant and convenient, it also expands the potential of the computer itself, for example by making it possible to use it for new purposes.

Even if the LCD is already connected to a desktop computer and being used for something other than the laptop, most monitors nowadays have two or more video inputs and they tend not to use this capability to the full. It is such a waste to let the laptop"s external display output function and the monitor"s video input function remain dormant, so we would like them to be put to effective use. Of course, we would also recommend the introduction of a new LCD to connect to your laptop.

The biggest merit of connecting a laptop with a stand-alone LCD is that it gives you a large screen and high resolution dual display environment. Standard laptop models usually come with a built-in 13-inch to 15-inch wide-screen LCD with a 1280 × 800 dot or 1366 × 768 dot resolution.

This level of resolution is good enough for basic Windows operations, but it goes without saying that a large, high-resolution computer screen is much more user-friendly. Combining a laptop with one of the latest wide-screen monitors enables you to easily construct a large-screen, high-resolution dual display environment. It is a real boon to dramatically boost the screen size and resolution while continuing to use your familiar laptop.

In particular, the increased vertical resolution makes applications such as web browsers and document display and editing far easier to use. For example, you can do things like check things with the web browser, refer to pdf files, organize data using word processing or presentation software, and create spread sheets and documents without having to change windows.

Another plus is that you can create the luxury of a "watching while" environment where you run the web browser, for instance, on the laptop"s built-in LCD and watch the video content on the large screen of the external monitor. This can be really useful for hobbies too. For example, while playing a game on the large external LCD screen you can check out strategies on websites, post information on a BBS or communicate with other users.

You can smoothly use multiple applications at the same time in the large workspace provided by a dual display. The photograph shows an EIZO 24.1-inch wide-screen LCD, the FlexScan SX2462W connected to a VAIO C. By supplementing the laptop"s built-in 1366 × 768 dot 14-inch wide-screen LCD with a 1920 × 1200 dot 24.1-inch wide-screen, it is possible to show more data at a time, a huge boost to work efficiency.

With two screens it"s easy to have full-screen display of the video content on one screen while you operate the computer on the other. The photograph shows an EIZO 23-inch wide-screen LCD monitor connected to a VAIO C. The VAIO C has HDMI output and the LCD monitor has HDMI input so visuals and sound can be transmitted by a single HDMI cable. The LCD monitor has full HD screen resolution (1920 × 1080 dot), making it the perfect match for HD video content.

At the office, it is very helpful for presentations to use "clone view" for the laptop"s built-in LCD and the external LCD screen. Clone view means showing exactly the same content on two display screens. It is normally set by a graphics driver function.

When holding small meetings it is certainly very convenient to be able to offer simple explanations of the presentation materials displayed on the external LCD, rather than having to ready a projector. Being able to explain about what is displayed on the screen means fewer documents to distribute, helping your office to "go paperless", which can only be a good thing.

We would like to point out here that you should check in advance the maximum resolution that the laptop"s external display output can handle. This can be found in documents such as the laptop"s specifications chart and support information. This is because, although most laptops can handle output up to 1920 × 1080 dots or 1920 × 1200 dots, some slightly older computers have an upper limit of 1680 × 1050 dots or 1600 × 1200 dots.

Even if the upper limit is 1680 × 1050 dots, the LCD can still display the data if its own resolution is 1680 × 1050 dots or higher. In such cases, it is better to use a monitor that offers dot-by-dot display, which displays the input resolution as it is, or enlarged display, which maintains the screen"s aspect ratio as it is. You do not need to worry because EIZO wide-screen LCDs can handle such display methods (although in some cases they do not function properly depending on the laptop computer or input resolution).

This is an example of a low-resolution display on the 1920 × 1200 dot display SX2462W. Since dot-by-dot display outputs the physical "1 dot" of the LCD and the input resolution "1 dot" without enlargement or reduction, it is shown small in the center of the screen (photo on the left). The display is a little blurred if it is enlarged while maintaining the aspect ratio, but this method is suitable for displaying images as they are shown large with low resolution to make the most of the screen size (photo on the right). Many monitors that cannot handle such display methods enlarge the display to full screen regardless of the input resolution. In such cases you have to be careful as the aspect ratio of the image is altered (for example, people appear to be thinner or fatter).

It is easy to set up a dual display in Windows 7. A menu is displayed when you right-click on the desktop. From "Screen resolution" it is possible to detect and align the external LCD, and set details such as resolution, display method and which will be the main display screen.

The "Screen resolution" menu. If the external LCD is not automatically recognized, click on "Detect". After the monitor has been recognized, you can select the display mode from the "Multiple displays" drop-down menu. Select "Extend display screen" to make the laptop screen and the external LCD into a single display screen (dual display).

Select "Duplicate display screen" from the "Multiple displays" drop-down menu to display the same content on the laptop screen and the external LCD screen (clone view). With this drop-down menu you can also set it to display video on one of the LCDs.

You can also call up a settings menu to decide the display method for a projector or external display by pressing the "Windows" and "P" keys. This is a tip worth remembering as selecting "Extension" for dual display or "Duplicate" for clone view here allows you to switch swiftly between them as necessary.

The menu launched by simultaneously pressing the "Windows" and "P" keys. You can easily switch between display methods such as dual display or clone view.

It is also worth noting that Windows 7 has added functions so that dual display can be used more effectively. An active window can be moved to the screen of another LCD by simultaneously pushing "Windows" + "Shift" + "→" (or "←"). It is also possible to maximize the window by pressing "Windows" + "↑", minimize it by pressing "Windows" + "↓", and shift it to the left or right of each screen by pressing "Windows" + "→" (or "←"). Making good use of these shortcuts should enable the efficient placing of windows in the two screens.

We would recommend a wide-screen model with a screen resolution of 1920 × 1080 dots (Full HD) or 1920 × 1200 dots (WUXGA) as the LCD to connect to a laptop, so that you can make full use of the advantages of dual display. EIZO has an extensive line up of wide-screen LCDs which can offer many benefits, in addition to the merits of a large screen and high resolution, when used with a laptop for dual display.

One such feature is the flexible stand adjustment. For example, the tilt, swivel and height can be adjusted for the FlexScan SX2462W, a 24.1-inch WUXGA model, and the FlexScan EV2333, a 23-inch full HD model. This enables users to adjust the screen position for easy viewing according to their own posture, which not only boosts work efficiency but also reduces physical strain.

The SX2462W is also equipped with vertical display function, turning the screen through 90 degrees. Vertical display is really handy when viewing elongated documents, graphics or web pages. In addition, when used as a standard horizontal screen, a 24.1 wide-screen, with its 518.4 × 324.0 mm display area, can display two A4 sheets, in other words one A3 (420 × 297 mm) in actual size. As well as being very useful in areas such as graphics or desk top publishing, this is also bound to come in handy when checking large business or accounting documents.

Setting the connected monitor into a vertical position is very convenient when displaying elongated web pages and documents or photographs that were taken vertically

With a 24.1 inch wide-screen like the SX2462W, an A3 sheet (two A4 sheets side by side) can be viewed in actual size, particularly effective for paper-based creative work ITmedia LCD Course II, Lesson 3: Which is better, 16:10 or 16:9 ? – "Screen size / resolution / aspect ratio"

We must not forget that EIZO"s wide-screen LCDs have non-glare screens (processed to reduce ambient light reflection). Nowadays the trend is for laptops to have an LCD with glare (glossy) surface treatment. While these can display images in bright color, reflected ambient light can sometimes be distracting.

A laptop screen is not so large and adjusting its angle can avoid the reflection of lights and so on, however it is not so easy with the large screen of an external LCD. When it comes to the large screen of an LCD in habitual use, a non-glare type that is not reflective is probably easier to see, as well as being kinder on the eyes. A large screen, high resolution and non-glare ensure that you can comfortably continue viewing over a prolonged period of time.

The surface treatment of an LCD makes a difference to the background reflection. Glare panels do not diffuse background light, making it easier to achieve high color purity, but easily reflect the user or lights (photo on the left). If the lights are similarly trained on a non-glare panel they do not have much effect, only appearing as a fuzzy brightness (photo on the right).

Another distinctive feature of EIZO wide-screen LCDs is a commitment to energy saving. They incorporate various power saving features that support "EcoView". A pivotal feature is the "EcoView Sense" adopted in the FlexScan EV series, such as the EV2333W.

This is the motion sensor on the front of the LCD. It constantly monitors the user"s movements to automatically take finely-tuned power saving measures. To be more precise, if the user"s presence is not detected for a specified period of time, for example if he leaves his seat, the monitor automatically switches to power save mode, and then automatically switches back when the user"s presence is detected again.

Other features include "Auto EcoView", which automatically optimizes the brightness of the LCD based on ambient lighting, and "EcoView Index", which displays a meter on the screen showing how much power is being saved. All these features can be expected to have a strong energy saving effect and to boost the user"s awareness of power saving, making them particularly useful in the office.

A standard laptop computer switches to sleep mode if the built-in LCD is closed while it is running but, if this function is turned off, a laptop can be treated as a "small desktop computer."

It can be set to use only the connected external LCD and not to react when the laptop"s built-in LCD is closed. The transformation into a small desktop PC is complete if you add a keyboard and mouse connected to the laptop via USB ports, for example. The OS is still running even though the laptop"s built-in LCD is closed, so you can carry out normal operations using the external keyboard and mouse, and also use the laptop"s built-in optical drives.

The idea is to use a large screen, high resolution external LCD at home or in the office, and to use the laptop"s built-in LCD as usual for mobile purposes. This helps to boost the longevity of the laptop"s built-in LCD and many people do use their laptop in this way. If you feel reluctant to use a dual display environment, where the screen is split in two, why not give this a try?

Select "Only show the desktop on 2" from the "Multiple displays" list in the "Screen resolution" menu. The laptop"s built-in LCD will be switched off and the external LCD will become the main display.

By making this simple setting your laptop can be used as a space saving desktop computer. Another plus is that the laptop"s built-in LCD will last longer.

Recently some high-end laptop computers, such as the Sony VAIO F, are insisting on good display quality for their LCDs. However, a typical laptop"s built-in LCD does not have as good image quality as a stand-alone LCD. This is only natural since the costs allowed for display quality are completely different for an LCD incorporated into the PC as one of its parts and a specialized LCD.

However, by using an EIZO wide-screen LCD a laptop user can still fully enjoy such benefits of a stand-alone high-quality LCD as excellent color reproduction, a wide viewing angle, more even display and a wealth of items that can be adjusted to improve image quality. This is a crucial point for people who use their computer for photographs and videos in particular.

EIZO"s wide-screen LCDs emphasize color reproduction, and the coloration in sRGB mode has a high degree of accuracy. The standard color gamut used in PC environments and Internet content is sRGB, so you need have no worries about viewing or editing videos and photographs. They can also display images on web pages, such as products in online shops or goods for sale in online auctions, in colors that are very close to the real thing. (This is also influenced by how the seller took the photographs and processed the images, so we cannot say that the colors will always be accurate.)

An example of sRGB color gamut image data displayed on a standard laptop and on the SX2462W. The SX2462W"s reproducibility of sRGB mode is of a considerably high standard but the color balance on the laptop has been lost. This would make it difficult to perform rigorous photo retouching.

In this case, if the image is edited on the external LCD with its high color reproducibility and the many tool palettes in the application are grouped in the laptop"s built-in LCD, there is less need to display or hide the tool palettes or to switch back and forth, and the image data to be edited can be displayed in a large form, making for more efficient work.

In this case, if the image is edited on the external LCD with its high color reproducibility and the many tool palettes in the application are grouped in the laptop"s built-in LCD, there is less need to display or hide the tool palettes or to switch back and forth, and the image data to be edited can be displayed in a large form, making for more efficient work.

When doing things like photo retouching, using software where there is a lot of switching between tool palettes it is very handy to display the image data to be edited on the external LCD with its high color reproducibility, and to gather the palette tools to be used on the laptop"s built-in LCD.

Going back to the subject of laptop computers, it is not going too far to say that applications and functions are being spoiled in laptops whose built-in LCD"s image quality is not too good. Connecting a laptop to a monitor with high image quality dispels any concerns about work that deals with colors and also helps to bring out the laptop"s potential.

Combining an EIZO wide-screen LCD with a laptop computer makes viewing videos and images even more fun. Just being able to see them on a large screen is a pleasure, but what makes it even better is that our LCDs are equipped with Fine Contrast, the optimum image quality mode for video and visuals. You can also use the Custom mode to create the image quality you prefer.

We expect that you now understand how displaying screens from a laptop computer on a stand-alone LCD can create a very pleasant environment. It feels as if your everyday laptop has been transformed into a completely different desktop machine. Even if you only use laptop computers, it is definitely worthwhile to add a stand-alone LCD.

When choosing the type of LCD the most important consideration is to choose one with overall high quality. When it comes to that, we can recommend EIZO wide-screen LCDs to a broad range of laptop users. In addition to their high image quality, EIZO wide-screen LCD are built with careful attention to detail, including non-glare screens, versatile stand features, dot-by-dot capability, abundant image quality modes, and our proprietary eco-functions. We want you to make full use of your beloved laptop computer along with an EIZO wide-screen LCD.

This time we have spoken about how an external LCD can be connected to a laptop computer, but if your main machine is a desktop computer then you probably already have a LCD.

In which case, why not consider adding a full HD (1920 × 1080 dot) or WUXGA (1920 × 1200 dot) wide-screen LCD and creating a more advanced dual display environment to further enhance your computer"s usability.

Recently many computers can handle dual display output with their chipset integrated graphics function, and nearly all of them are capable of dual display output with a stand-alone graphics card.

The dual display environment of a desktop PC has a wider range of options than a laptop computer, which is already installed with an LCD. Depending on the combination of products used you can seek for a larger screen, higher resolution and better image quality.

The photograph below shows two EIZO 24.1-inch WUXGA (1920 × 1200 dot) models being used side by side for an overwhelming super high resolution of 3840 × 1200 dots in total.

You can get a super high resolution of 3840 × 1200 dots in total by putting two 24.1-inch 1920 × 1200 dot wide-screen LCDs side by side. The advantage in this is that a larger screen and higher resolution are achieved at a lower cost than buying a single 30-inch high resolution model

The shift to high pixel density displays, which started with smartphones and tablets, has spread to the world of PC display monitors. 4K displays for PCs hit the shelves in 2014, and an understanding of pixel density has become important for selecting products, along with screen size and resolution. Our theme this time is the shift to high pixel density displays, including trends in the latest technology.

Looking at the market trends in LCD monitors for PCs, in the latter half of the 2000s, the transition from square to wide screens took off all at once, and currently, the trend has been towards larger screens and higher resolutions.

As of 2014, the best selling LCD is the 23" model supporting 1920 x 1080 pixel (full HD) display, but 4K displays that boast of four times that resolution are on rapid rise, and there is a new trend of converting to high resolution (increasing pixel density) without enlarging the screen size

Note: This is a translation from Japanese of the ITmedia article "ITmedia LCD Monitor Course III: Confused about HiDPI and Retina display? Understanding pixel density, an essential element in choosing displays in the age of 4K" published on December 11, 2014. Copyright 2014 ITmedia Inc. All Rights Reserved.

4K displays for current PCs are primarily UHD 4K resolution like 4K televisions. However, there are a few products out there that have adopted the DCI 4K standard, such as the ColorEdge CG318-4K color management monitor for video production to be released by EIZO in the spring of 2015.

4K is a high resolution with twice the vertical and horizontal pixel count of full HD and refers to resolutions featuring a horizontal pixel count of around 4 million. The photograph is of EIZO"s ColorEdge CG318-4K. It supports 4096 x 2160 pixel/approx. 17:9 display, which surpasses the 3840 x 2160 pixel/16:9 (UHD 4K) display often used in 4K displays for PCs. Note the difference in horizontal resolution.

At the same time, the 4K display environment is still in a transition period, so there are several things that should be noted, the first of which is the refresh rate issue.

The only interface for 4K displays currently on the market that is capable of 4K 60 Hz display is DisplayPort 1.2, which has a 21.6 Gbps bandwidth. That’s because 4K 60 Hz transmission requires a bandwidth of 16 Gbps (3840 x 2160 pixel, 32-bit color, 60 Hz). This is well above the bandwidth supported by DisplayPort 1.1 (10.8 Gbps), HDMI 1.4a (10.2 Gbps) and DVI Dual Link (7.4 Gbps). For that reason it should be noted that currently, when connected via DVI-D or HDMI, 4K display only works at 30 Hz.

However, as far as HDMI goes, the bandwidth of the new HDMI 2.0 standard (HDMI 2.0 Level A) has been expanded to 18 Gbps, and new displays capable of 4K 60 Hz display with HDMI 2.0 input have been announced. As the video output components of PCs (GPU) and other devices begin supporting HDMI 2.0, the situation will gradually improve.

From left to right: DVI-D, HDMI and DisplayPort video input terminals. 4K 60 Hz display requires connection via DisplayPort 1.2. Dual Link DVI-D and the current HDMI 1.4a only support 4K display at 30 Hz.

If the display is connected via DisplayPort 1.2, the setting can be changed to 4K 60 Hz display in the OS settings. The above image shows the setting for 4K 60 Hz with EIZO"s FlexScan EV3237 31.5" 4K display.

The HDMI 2.0 Level B standard is capable of transmitting 4K 60Hz signals over the HDMI 1.4 transmission bandwidth, but the color depth is YUV 4:2:0, and colors bleed, so it is not suited to displays. We’ll have to wait for the spread of HDMI 2.0 Level A for proper 4K 60Hz display via HDMI.

Moreover, there are cases where the 60 Hz transmission system of the 4K display creates problems even if DisplayPort 1.2 is used. Although not widely known, there are two transmission systems used to support 60 Hz display with the currently available 4K displays, namely MST (Multi Stream Transport) and SST (Single Stream Transport).

In the MST system, the OS recognizes 4K as a two-screen 1920 x 2160 pixel display, so a GPU driver is required to combine the output onto one screen. Depending on the version of the GPU and driver used, there were problems such as with the rendering timing on the left and right sides of the screen or not working in a multi-display environment.

The reason the video signal is purposefully split into two screens for transmission is that the supply of display scalers (video processing chips) that can transmit 4K 60 Hz as a single screen was behind the supply of 4K LCD panels. For that reason, there was no other choice but for the early 4K displays to adopt the MST system.

In contrast, the SST (Single Stream Transport) system can transmit 4K resolution as a single screen, so it is capable of 4K 60 Hz display without internal image synthesis or other processes. It does not have problems resulting from splitting the signal into two screens like MST, but there are some devices with DisplayPort 1.2 that have graphics cards that do not support SST, so the card should be checked at the time of purchase to see if it supports SST. Incidentally, EIZO"s FlexScan EV3237 31.5" 4K display has adopted the SST system.

These kinds of compatibility issues will likely be solved in the not-so-distant future as 4K displays become more popular and support improves on the GPU and driver side. Of course, these limitations only apply to 4K display at 60 Hz, so if you"re satisfied with 30Hz, the current HDMI 1.4a and DVI Dual Link are fully capable of 4K display.

The shift to high resolution displays does not stop with 4K. 27" displays (5120 x 2880 pixel/16:9) that support 5K are already being commercialized. The question is what will the very high resolution of 5K be used for, but there is the advantage that tool bars and other elements can be placed on the screen while displaying 4K content with video editing software.

However, the current DisplayPort 1.2 does not support 5K output, so it should be noted that as of right now 5K displays require special configuration to send video signals via two cables. Although not yet commercialized, the new DisplayPort 1.3 standard announced in September 2014 supports 5K (5120 x 2880 pixel) 60 Hz display and simultaneous two-screen UHD 4K display via daisy chain. Once PCs (GPUs) with DisplayPort 1.3 support hit the shelves, 5K 60 Hz signal output will be possible with a single cable.

DisplayPort 1.3 makes 5K (5120 x 2880 pixel) 60 Hz display possible with a single cable.  *Source: Presentation by VESA (Video Electronics Standards Association), which is the standardization body for PC graphics-related devices.

What"s more, the world of 8K to follow 4K and 5K is almost here. According to an announcement by the Japanese Ministry of Internal Affairs and Communications, 8K test broadcasts will begin in 2016 and regular broadcasts in 2018. 8K (7680 x 4320 pixel/16:9) compatible display test models have appeared at video-related exhibitions and events, and the move towards ever higher resolution and higher definition will continue at a rapid pace.

As the resolution of displays grows increasingly higher, a new element to consider when choosing a display today is pixel density. Pixel density in displays is a spec indicating the degree of definition, and the value is usually expressed in ppi. Ppi stands for "pixes per inch" (not per square inch). An inch is equal to 2.54 centimeters.

Reducing the distance between pixels (pixel pitch) without changing the screen size of the LCD increases the ppi, and the higher this number, the higher the definition of the display. For example, at 100 ppi, there are 100 pixels per 2.54 centimeters, and at 300 ppi, there are 300 pixels packed within the same width.

Today there is a trend of rapidly rising pixel density. Looking at stand-alone displays, the hot topic of late is super high pixel density displays with high resolution of 4K packed into screen sizes of 24-27 inches. At first, this genre only attracted the attention of some high-end consumers, but low-priced products started hitting the shelves one after another in 2014, so the number of regular users showing an interest has increased.

What people need to know before choosing one of these super high pixel density displays is the new way of thinking concerning resolution that has been brought about by rapid increases in pixel density.

When it comes to PC displays, most products have a pixel density of about 96 ppi to match the display density of 96 dpi (dots per inch) which has been the standard for the Windows desktop UI. The standard for the new Start screen and other aspects of the Modern UI of Windows 8 and later is 135 dpi (automatically switching between 100%, 140% and 180% depending on the pixel density of the display device), but the standard for the desktop UI is still 96 dpi.

As such, up until now, PC displays have been designed based on the assumption that the OS and applications would have a fixed display density (96 ppi for Windows). The 96 dpi standard is behind this assumption, and the screen size increased with the higher resolution of LCD panels (increased pixel counts), so it was safe to simply consider that the higher the resolution (pixel count), the larger the work space.

The higher the pixel density of the display, the higher the definition of the OS and applications, but there was no such thing as a display with such high pixel density that it could not be put to practical use, so it did not lead to any major problems. Depending on how high the pixel density, the icons and fonts would appear larger or smaller, but the definition was sufficient for the users to recognize them.

This is the conventional thinking with regards to LCDs. The screen size increased as the resolution of LCD panels became higher, so choosing a display with a higher resolution meant that the amount of information displayed at once was higher and the work space was larger.

On the left is an SXGA 17" square screen (1280 x 1024 pixels), and on the right is a WUXGA 24.1" wide screen (1920 x 1200 pixels). As you can see, the higher resolution and larger screen provided a much larger work space.

By contrast, when it comes to super high pixel density displays of the 4K class, a higher resolution (pixel count) does not necessarily mean a larger work space. In recent years, the display density (dpi) of the Modern UI, OS and applications in Windows 8 and later is designed to be variable rather than fixed. In other words, even at the same screen size, the display density does not have to be fixed. With the scaling function of the OS, the display can be enlarged smoothly.

The biggest advantage of this is that it enables very high definition display. Say, for example, you took a 24" UHD 4K display and enlarged the display so that the work space was equivalent to 24" full HD. UHD 4K (3840 x 2160 pixels) has twice the vertical and horizontal resolution of full HD (1920 x 1080 pixels), so there will be scaling of 200% for the enlarged display.

A single pixel on the OS display that was conventionally displayed using one pixel on the LCD panel is rendered with four pixels (double the aspect ratio), so combined with the OS-side scaling function, it produces a very fine and smooth display.

EIZO"s FlexScan EV3237 31.5" display supports UHD 4K display. For a large external display, it has high pixel density (approx. 140 ppi) for smooth, very high-definition display. This product has a large 31.5" screen, so it also offers a large work space, but with 23.8" and 28" 4K displays, the display is too fine, so the scaling function of the OS has to be used to enlarge it.

This is the difference in how UHD 4K (left) and full HD (right) appear at the same screen size. The photographs of the icons have been taken at about the same distance from the screen. With UHD 4K (3840 x 2160 pixels), the display is enlarged 200%, and with full HD (1920 x 1080 pixels), the icon is displayed at the same magnification. The size of the icons is roughly the same, but as you can see, the icon is displayed in higher definition with UHD 4K.

It"s difficult to describe, but if you compare the display on smartphones, on which high pixel density display is common, with that of conventional low pixel density PC displays, you"ll be able to see the advantage right away.

Compared to the sharp and smooth display on the smartphone, the display on the PC appears rough, and the pixel grid is visible. Moreover, the diagonal lines may appear jagged, and the rendering of text and icons may have a rough feel. If you use a smartphone or tablet frequently, you might have even felt that something was wrong with the display on your PC.

With the 4K class of super high pixel density displays, the smooth display quality of smartphones can be achieved. And because it"s not on a small screen like that of a smartphone but a precise rendering across the large screen of a PC display, many people are probably surprised at the high picture quality when they actually see it.

Of course, the enlarged display of the full HD-equivalent work space on the 24" 4K display introduced above is only a single example. If you want a large work space even if the icons and text are a little smaller, you just have to lower the magnification. On the other hand, if you want to have a larger display with improved visibility even if the work space is smaller, you just have to increase the magnification. This flexibility is another thing that gives super high pixel density displays an advantage.

This is an example of screen display on the FlexScan EV3237 desktop. At 100% magnification, the 3840 x 2160 pixel UHD 4K resolution can be fully utilized, but the pixel density is around 140 ppi, and the pixel pitch is about 0.18 mm, so it appears quite tiny from the normal viewing distance (left). When magnification is set to 150%, the work space becomes smaller, but the visibility of the text and icons is improved (right).

Nevertheless, it should be remembered that there are practical limitations to lowering the magnification rate for scaling to make a larger work space on a super high pixel density display.

For example, if a small screen size like 24" is selected for a 4K display as described above, the scaling magnification rate has to be raised to ensure visibility. As a result, you can"t have a large work space with respect to the actual resolution. By reducing the distance from which the screen is viewed, it may be visible even if you lower the scaling magnification rate a little. However, if you get too close to the display, your eyes and neck will have to make bigger movements during use, which will increase the burden on your body, so this is not recommended.

Of course, the larger the screen size the more room you"ll have for making adjustments to the work space and scaling magnification rate, so if you"re not sure, choose a super high pixel density display that is slightly larger than your current one, and you should be able to create a comfortable environment without trouble (you"ll need to pay attention to the physical space required by the display, though).

Support for the high pixel density display environment in the PC OS is called HiDPI support. Along with support on the OS side, support by applications is also progressing, and the PC software environment surrounding HiDPI has risen to a practical level. This is boosting the spread of super high pixel density displays like 4K.

As far as the Windows OS goes, the display density has been a modifiable setting since Windows XP, but it would sometimes jumble screen layout, and there were almost no applications that supported it, so it was not a practical feature. The scaling magnification function reached a practical level where the screen layout did not break down as of Windows 7.

Moreover, since Windows 8.1, it is possible to apply different display density settings to different displays when multiple displays are connected, and the sense of incongruity experienced in a multi-screen environment with displays of different pixel densities has been reduced (however, the number of setting levels is limited, so the combination of display densities cannot be elaborately customized).

As for Mac OS X, the spread of high pixel density displays (referred to as "Retina displays" by Apple) was promoted earlier than it was by the Windows camp, so optimization of the OS design with variable display density is further along than it is with Windows. OS X Mavericks 10.9.3 and later support HiDPI display by external displays, so it"s easier to combine high pixel density displays made by other companies.

This is the Windows 8.1 scaling magnification rate settings screen. With a UHD 4K display, if you set it to "Extra large - 200%," the icons and text will be displayed at the same size as a full HD display with the same screen size. You can also adjust the text size of certain elements rather than changing the size of everything on the desktop.

When it comes to applications as well, the Microsoft Office 2013 (Windows)/2011 (Mac) office suite, major web browsers and other applications are starting to support HiDPI one right after another. Image editing software Adobe Photoshop Elements offers support as of Ver.13, and Photoshop CC has provisional support for manually setting 200％, so the foundation for full utilization of high pixel density displays has been laid.

As for hardware, lately GPU already has processing performance that could be called overkill for general use, so even PCs that aren"t especially high performance should be able to handle 4K display (although enjoying 4K games and videos on them is going to be a different story). For reference purposes, the status of GPU support for EIZO"s FlexScan EV3237 31.5" 4K display is summarized in the table below.

This trend of high pixel density becoming mainstream took off all at once when Apple began introducing its Retina displays to its products like the iPhone, iPad and iMac in 2010. These highdensity pixel displays are based on the concept of providing high-definition display that equals or exceeds the pixel densitythat can be distinguished by the retina of the human eye.

Pictured are the iPhone 6 Plus (left) and iPad mini 3 (right) which feature Apple"s Retina display. Even looking closely at the screens, the pixels cannot be distinguished on the high-definition displays.

When it comes to visual devices, looking at the actual display often has more impact than a long description. Following the entrance of the Retina display and its positive reception, various manufacturers introduced smartphones, tablets and PCs with high pixel density displays, so they have spread to regular users.

Of course, products that are higher priced than the rest do not catch on, so the prices are coming down at the same time. The reason this is possible is complex and includes the improvement of LCD panel manufacturing technology, a substantial increase in the number of products adopting high pixel density LCD panels resulting in an environment conducive to economies of scale, and the rise of price competition between products featuring high pixel density LCD panels.

In this way, the software and hardware environments to support HiDPI display were put together, and in response, display manufacturers began aggressively introducing 4K displays, and the momentum of super high pixel density displays has taken off all at once.

The table below summarizes the specifications of high pixel density displays. The pixel densities of PC displays are lower than those of smartphones and tablets, but in the case of PCs, the user views them from a distance of about 50 centimeters, so the high-definition display appears just as smooth. As a rough guide, in the case of external displays for PCs, if the pixel pitch islessthan around 0.2mm, normal use becomes more difficult at normal magnification, so the magnification has to be increased with the scaling setting.

PC displays are currently becoming more and more diverse, including the 4K and HiDPI trends introduced earlier. Let"s summarize the screen size, resolution, pixel density and aspect ratio trends in current PC displays.

Since the latter half of the 2000s, square screens with aspect ratios of 5:4 and 4:3 have been on the decline in the PC display market, while 16:9 and 16:10 wide screens have been on the rise and have become established. At the same time, there has been a transition from 17" and 19" square screens to 23" and 24" wide screens.

There is also an active trend to move towards wide screens of 27" or more in pursuit of even more comfortable environments. That transition is split between those looking for a larger work space choosing 3840 x 2160 pixels (UHD 4K) or 2560 x 1440 pixels (WQHD) and those looking for a display with greater visibility at a lower price choosing 1920 x 1080 pixels (full HD).

In recent years there have also been ultra-wide screen products hitting the shelves featuring even wider screens. These are products with super wide screens featuring aspect ratios of 21:9. They are not suited to those switching from environments with a single regular display, but there is replacement demand from business users that regularly use spreadsheets as well as those coming from side-by-side dual display environments.

At the same time, going in a completely different direction, EIZO plans to launch its 26.5" FlexScan EV2730Q display featuring a square panel with an aspect ratio of 1:1 in spring 2015. It is a truly unique screen size, but it features a high resolution with full HD stretched horizontally to 1920 x 1920 pixels, so there is plenty of vertical and horizontal working space. Considering the large number of users that use two full HD displays side by side, it will be highly versatile.

Today, with the emergence of 4K and other highpixel density displays and the breaking down of the concept that a high resolution (high pixel count) equals a large work space, there is still no change in the fact that screen size has a significant impact on work space. As a rough guide for choosing, comparing to paper sizes provides an easy understanding from the standpoint of work efficiency. The main paper sizes are shown in the table below, so check them against the display area for the above screen sizes.

For example, the 23" full HD displays that are currently mainstream have a display area of around 509mm x 287mm, which holds one A4-sized sheet (297mm x 210mm) and leaves substantial surplus space. This is sufficient for web browsing and simple spreadsheets, but for displaying an A4 two-page spread in actual dimensions, it is lacking vertically.

If using it for retouching photos to be printed on A4 two-page spreads or, in other words, A3 paper (420mm x 297mm), DTP, design work, etc., having an area where it can be displayed in the actual A3 dimensions and an area for the tool palette allows the work to proceed more smoothly while confirming what the final product will look like. For these conditions, the candidate displays will be 24" wide (approx. 531mm x 299mm) or larger.

On a 24.1" wide LCD supporting 1920 x 1200 pixel display (WUXGA) with an aspect ratio of 16:10, you can display an A4 two-page spread or A3 size (420mm x 297mm) image at the actual size on a single screen and have the menu and tool palette on the outside. The photograph is of EIZO"s FlexScan EV2436W.

When choosing an LCD in the future, it will be necessary to also consider the pixel density resulting from the screen size and resolution combination. As previously stated, super highpixel density displays basically require magnification with scaling for use, so high resolution (high pixel count) does not equal a large work space. This is a key point that needs to be carefully noted.

Thanks to the diversification of LCDs, users are able to be very choosy when selecting products based on their own uses, but the other side of the coin is that there is also an increased risk of accidentally purchasing a product that does not match your needs.

In order to avoid the tragedy of purchasing a super highpixel density display in hopes of increasing the work space only to realize that magnification has to be used, which means that the work efficiency is the same as before, it"s important to select the optimal model with a proper understanding of the features such as the advantage of super highpixel density displays when it comes to very high definition display and that going with a larger screen size is effective for increasing the work space.

► When the leading Korean players Samsung Display and LG Display exit LCD production, BOE will be the most significant player in the LCD market. Though OLED can replace the LCD, it will take years for it to be fully replaced.

When mainstream consumer electronics brands choose their device panels, the top three choices are Samsung Display, LG Display (LGD) and BOE (000725:SZ) – the first two from Korea and the third from China. From liquid-crystal displays (LCD) to active-matrix organic light-emitting diode (AMOLED), display panel technology has been upgrading with bigger screen products.

From the early 1990s, LCDs appeared and replaced cathode-ray tube (CRT) screens, which enabled lighter and thinner display devices. Japanese electronics companies like JDI pioneered the panel technology upgrade while Samsung Display and LGD were nobodies in the field. Every technology upgrade or revolution is a chance for new players to disrupt the old paradigm.

The landscape was changed in 2001 when Korean players firstly made a breakthrough in the Gen 5 panel technology – the later the generation, the bigger the panel size. A large panel size allows display manufacturers to cut more display screens from one panel and create bigger-screen products. "The bigger the better" is a motto for panel makers as the cost can be controlled better and they can offer bigger-size products to satisfy the burgeoning middle-class" needs.

LCD panel makers have been striving to realize bigger-size products in the past four decades. The technology breakthrough of Gen 5 in 2002 made big-screen LCD TV available and it sent Samsung Display and LGD to the front row, squeezing the market share of Japanese panel makers.

The throne chair of LCD passed from Japanese companies to Korean enterprises – and now Chinese players are clinching it, replacing the Koreans. After twenty years of development, Chinese panel makers have mastered LCD panel technology and actively engage in large panel R&D projects. Mass production created a supply surplus that led to drops in LCD price. In May 2020, Samsung Display announced that it would shut down all LCD fabs in China and Korea but concentrate on quantum dot LCD (Samsung calls it QLED) production; LGD stated that it would close LCD TV panel fabs in Korea and focus on organic LED (OLED). Their retreats left BOE and China Stars to digest the LCD market share.

Consumer preference has been changing during the Korean fab"s recession: Bigger-or-not is fine but better image quality ranks first. While LCD needs the backlight to show colors and substrates for the liquid crystal layer, OLED enables lighter and flexible screens (curvy or foldable), higher resolution and improved color display. It itself can emit lights – no backlight or liquid layer is needed. With the above advantages, OLED has been replacing the less-profitable LCD screens.

Samsung Display has been the major screen supplier for high-end consumer electronics, like its own flagship cell phone products and Apple"s iPhone series. LGD dominated the large OLED TV market as it is the one that handles large-size OLED mass production. To further understand Korean panel makers" monopolizing position, it is worth mentioning fine metal mask (FMM), a critical part of the OLED RGB evaporation process – a process in OLED mass production that significantly affects the yield rate.

Prior to 2018, Samsung Display and DNP"s monopolistic supply contract prevented other panel fabs from acquiring quality FMM products as DNP bonded with Hitachi Metal, the "only" FMM material provider choice for OLED makers. After the contract expired, panel makers like BOE could purchase FFM from DNP for their OLED R&D and mass production. Except for FFM materials, vacuum evaporation equipment is dominated by Canon Tokki, a Japanese company. Its role in the OLED industry resembles that of ASML in the integrated circuit space. Canon Tokki"s annual production of vacuum evaporation equipment is fewer than ten and thereby limits the total production of OLED panels that rely on evaporation technology.

Display and LGD are using evaporation on their OLED products. To summarize, OLED currently adopts evaporation and QLED must go with inkjet printing, but evaporation is a more mature tech. Technology adoption will determine a different track for the company to pursue. With inkjet printing technology, players are at a similar starting point, which is a chance for all to run to the front – so it is for Chinese panel fabs. Certainly, panel production involves more technologies (like flexible panels) than evaporation or inkjet printing and only mastering all required technologies can help a company to compete at the same level.

Presently, Chinese panel fabs are investing heavily in OLED production while betting on QLED. BOE has four Gen 6 OLED product lines, four Gen 8.5 and one Gen 10.5 LCD lines; China Star, controlled by the major appliance titan TCL, has invested two Gen 6 OLED fabs and four large-size LCD product lines.

Remembering the last "regime change" that occurred in 2005 when Korean fabs overtook Japanese" place in the LCD market, the new phase of panel technology changed the outlook of the industry. Now, OLED or QLED could mark the perfect time for us to expect landscape change.

After Samsung Display and LGD ceding from LCD TV productions, the vacant market share will be digested by BOE, China Star and other LCD makers. Indeed, OLED and QLED have the potential to take over the LCD market in the future, but the process may take more than a decade. Korean companies took ten years from panel fab"s research on OLED to mass production of small- and medium-size OLED electronics. Yet, LCD screen cell phones are still available in the market.

LCD will not disappear until OLED/QLED"s cost control can compete with it. The low- to middle-end panel market still prefers cheap LCD devices and consumers are satisfied with LCD products – thicker but cheaper. BOE has been the largest TV panel maker since 2019. As estimated by Informa, BOE and China Star will hold a duopoly on the flat panel display market.

BOE"s performance seems to have ridden on a roller coaster ride in the past several years. Large-size panel mass production like Gen 8.5 and Gen 10.5 fabs helped BOE recognize the first place in production volume. On the other side, expanded large-size panel factories and expenses of OLED product lines are costly: BOE planned to spend CNY 176.24 billion (USD 25.92 billion) – more than Tibet"s 2019 GDP CNY 169.78 billion – on Chengdu and Mianyang"s Gen 6 AMOLED lines and Hefei and Wuhan"s Gen 10.5 LCD lines.

Except for making large-size TVs, bigger panels can cut out more display screens for smaller devices like laptops and cell phones, which are more profitable than TV products. On its first-half earnings concall, BOE said that it is shifting its production focus to cell phone and laptop products as they are more profitable than TV products. TV, IT and cell phone products counted for 30%, 44% and 33% of its productions respectively and the recent rising TV price may lead to an increased portion of TV products in the short term.

* Rewards 3% back excludes taxes and shipping. Rewards are issued to your online Dell Rewards Account (available via your Dell.com My Account) typically within 30 business days after your order’s ship date. Rewards expire in 90 days (except where prohibited by law). “Current rewards balance” amount may not reflect the most recent transactions. Check Dell.com My Account for your most up-to-date reward balance. Total rewards earned may not exceed $2,000 within a 3-month period. Outlet purchases do not qualify for rewards. Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers and rewards subject to change without notice, not combinable with all other offers. See Dell.com/rewardsfaq. $50 in bonus rewards for Dell Rewards Members who open a new Dell Preferred Account (DPA), or Dell Business Credit (DBC) account on or after 8/10/2022. $50 bonus rewards typically issued within 30 business days after DPA or DBC open date.

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About products and suppliers:Alibaba.com offers 2823 wuxga lcd panel products. About 34% % of these are lcd modules, 1%% are lcd touch screen, and 1%% are oled/e-paper modules.

A wide variety of wuxga lcd panel options are available to you, You can also choose from original manufacturer, odm and agency wuxga lcd panel,As well as from tft, ips, and tn.

In recent years, smartphone displays have developed far more acronyms than ever before with each different one featuring a different kind of technology. AMOLED, LCD, LED, IPS, TFT, PLS, LTPS, LTPO...the list continues to grow.

There are many display types used in smartphones: LCD, OLED, AMOLED, Super AMOLED, TFT, IPS and a few others that are less frequently found on smartphones nowadays, like TFT-LCD. One of the most frequently found on mid-to-high range phones now is IPS-LCD. But what do these all mean?

LCD means Liquid Crystal Display, and its name refers to the array of liquid crystals illuminated by a backlight, and their ubiquity and relatively low cost make them a popular choice for smartphones and many other devices.

LCDs also tend to perform quite well in direct sunlight, as the entire display is illuminated from behind, but does suffer from potentially less accurate colour representation than displays that don"t require a backlight.

Within smartphones, you have both TFT and IPS displays. TFT stands for Thin Film Transistor, an advanced version of LCD that uses an active matrix (like the AM in AMOLED). Active matrix means that each pixel is attached to a transistor and capacitor individually.

The main advantage of TFT is its relatively low production cost and increased contrast when compared to traditional LCDs. The disadvantage of TFT LCDs is higher energy demands than some other LCDs, less impressive viewing angles and colour reproduction. It"s for these reasons, and falling costs of alternative options, that TFTs are not commonly used in smartphones anymore.Affiliate offer

IPS technology (In-Plane Switching) solves the problem that the first generation of LCD displays experience, which adopts the TN (Twisted Nematic) technique: where colour distortion occurs when you view the display from the side - an effect that continues to crop up on cheaper smartphones and tablets.

The PLS (Plane to Line Switching) standard uses an acronym that is very similar to that of IPS, and is it any wonder that its basic operation is also similar in nature? The technology, developed by Samsung Display, has the same characteristics as IPS displays - good colour reproduction and viewing angles, but a lower contrast level compared to OLED and LCD/VA displays.

According to Samsung Display, PLS panels have a lower production cost, higher brightness rates, and even superior viewing angles when compared to their rival, LG Display"s IPS panels. Ultimately, whether a PLS or IPS panel is used, it boils down to the choice of the component supplier.

This is a very common question after "LED" TVs were launched, with the short answer simply being LCD. The technology used in a LED display is liquid crystal, the difference being LEDs generating the backlight.

One of the highlights from TV makers at the CES 2021 tradeshow, mini-LED technology seemed far removed from mobile devices until Apple announced the 2021 iPad Pro. As the name implies, the technique is based on the miniaturization of the LEDs that form the backlight of the screen — which still uses an LCD panel.

Despite the improvement in terms of contrast (and potentially brightness) over traditional LCD/LED displays, LCD/mini-LEDs still divide the screen into brightness zones — over 2,500 in the case of the iPad and 2021 "QNED" TVs from LG — compared to dozens or hundreds of zones in previous-generation FALD (full-array local dimming) displays, on which the LEDs are behind the LCD panel instead of the edges.

AMOLED stands for Active Matrix Organic Light-Emitting Diode. While this may sound complicated it actually isn"t. We already encountered the active matrix in TFT LCD technology, and OLED is simply a term for another thin-film display technology.

OLED is an organic material that, as the name implies, emits light when a current is passed through it. As opposed to LCD panels, which are back-lit, OLED displays are "always off" unless the individual pixels are electrified.

This means that OLED displays have much purer blacks and consume less energy when black or darker colours are displayed on-screen. However, lighter-coloured themes on AMOLED screens use considerably more power than an LCD using the same theme. OLED screens are also more expensive to produce than LCDs.

Because the black pixels are "off" in an OLED display, the contrast ratios are also higher compared to LCD screens. AMOLED displays have a very fast refresh rate too, but on the downside are not quite as visible in direct sunlight as backlit LCDs. Screen burn-in and diode degradation (because they are organic) are other factors to consider.Affiliate offer

OLED stands for Organic Light Emitting Diode. An OLED display is comprised of thin sheets of electroluminescent material, the main benefit of which is they produce their own light, and so don"t require a backlight, cutting down on energy requirements. OLED displays are more commonly referred to as AMOLED displays when used on smartphones or TVs.

Super AMOLED is the name given by Samsung to its displays that used to only be found in high-end models but have now trickled down to more modestly specced devices. Like IPS LCDs, Super AMOLED improves upon the basic AMOLED premise by integrating the touch response layer into the display itself, rather than as an extra layer on top.

As a result, Super AMOLED displays handle sunlight better than AMOLED displays and also require less power. As the name implies, Super AMOLED is simply a better version of AMOLED. It"s not all just marketing bluster either: Samsung"s displays are regularly reviewed as some of the best around.

The technology debuted with the obscure Royole FlexPai, equipped with an OLED panel supplied by China"s BOE, and was then used in the Huawei Mate X (pictured above) and the Motorola Razr (2019), where both also sport BOE"s panel - and the Galaxy Flip and Fold lines, using the component supplied by Samsung Display.Affiliate offer

Resolution describes the number of individual pixels (or points) displayed on the screen and is usually presented for phones by the number of horizontal pixels — vertical when referring to TVs and monitors. More pixels on the same display allow for more detailed images and clearer text.

To make it easier to compare different models, brands usually adopt the same naming scheme made popular by the TV market with terms like HD, FullHD and UltraHD. But with phones adopting a wide range of different screen proportions, just knowing that is not enough to know the total pixels displayed on the screen.Common phone resolutions

But resolution in itself is not a good measure for image clarity, for that we need to consider the display size, resulting in the pixel density by area measured by DPI/PPI (dots/points per inch).Affiliate offer

Speaking of pixel density, this was one of Apple"s highlights back in 2010 during the launch of the iPhone 4. The company christened the LCD screen (LED, TFT, and IPS) used in the smartphone as "Retina Display", thanks to the high resolution of the panel used (960 by 640 pixels back then) in its 3.5-inch display.

The name coined by Apple"s marketing department is applied to screens which, according to the company, the human eye is unable to discern the individual pixels from a normal viewing distance. In the case of iPhones, the term was applied to displays with a pixel density that is greater than 300 ppi (dots per inch).

With the iPhone 11 Pro, another term was introduced to the equation: "Super Retina XDR". Still using an OLED panel (that is supplied by Samsung Display or LG Display), the smartphone brings even higher specs in terms of contrast - with a 2,000,000:1 ratio and brightness level of 1,200 nits, which have been specially optimized for displaying content in HDR format.

As a kind of consolation prize for iPhone XR and iPhone 11 buyers, who continued relying on LCD panels, Apple classified the display used in the smartphones with a new term, "Liquid Retina". This was later applied also to the iPad Pro and iPad Air models, with the name defining screens that boast a high range and colour accuracy, at least based on the company"s standards.

Nit, or candela per square meter in the international system (cd/m²), is a unit of measurement of luminance, i.e. the intensity of light emitted. In the case of smartphone screens and monitors in general, such a value defines just how bright the display is - the higher the value, the more intense the light emitted by the screen.

The result is smoother animations on the phone, both during regular use and in games, compared to screens that have a 60 Hz refresh rate which remains the standard rate in the market when it comes to displays.

Originally touted to be a "gimmick" in 2017, with the launch of the Razer Phone, the feature gained more and more momentum in due time, even with a corresponding decrease in battery life. In order to make the most of this feature, manufacturers began to adopt screens with variable refresh rates, which can be adjusted according to the content displayed - which is 24 fps in most movies, 30 or 60 fps in home video recordings, and so forth.

TFT(Thin Film Transistor) - a type of LCD display that adopts a thin semiconductor layer deposited on the panel, which allows for active control of the colour intensity in each pixel, featuring a similar concept as that of active-matrix (AM) used in AMOLED displays. It is used in TN, IPS/PLS, VA/PVA/MVA panels, etc.

IGZO(Indium Gallium Zinc Oxide) - a semiconductor material used in TFT films, which also allows higher resolutions and lower power consumption, and sees action in different types of LCD screens (TN, IPS, VA) and OLED displays

LTPO(Low Temperature Polycrystaline Oxide) - a technology developed by Apple that can be used in both OLED and LCD displays, as it combines LTPS and IGZO techniques. The result? Lower power consumption. It has been used in the Apple Watch 4 and the Galaxy S21 Ultra.

LTPO allows the display to adjust its refresh rate, adapting dynamically to the content shown. Scrolling pages can trigger the fastest mode for a fluid viewing, while displaying a static image