dual lcd panel brands

The best monitor for dual setup that we"ve tested is the Dell UltraSharp U2520D. With a 25-inch screen size, you can easily place two of them next to each other, and it provides great features for work use. It has a big USB hub with three USB-A ports to charge your devices while working, and it has two USB-C ports, one of which supports DisplayPort Alt Mode so that you can display an image from a compatible device and charge it at the same time. What makes this great for a dual setup is that it also has a DisplayPort output, allowing you to send a signal to another monitor if your computer or laptop doesn"t have a second DisplayPort output.

If one LCD is good, two is better, right? I"m not talking about two layer LCD. No, that"s still not quite right. LCDs have lots of layers. How about Double Stuf LCD? Nailed it.

Double Stuf LCDs have the potential to improve the contrast ratio of a display with minimal additional power draw and without needing additional LEDs, like

The problem, and what has always been LCD"s problem, is this method doesn"t block all the light. There"s no such thing as a "black" LCD pixel. Some light always leaks through, which is why LCDs have always had worse black levels and contrast compared to other technologies, like

In Hisense"s prototypes and the current version of this TV (currently only available in China), the second layer was 1080p on a 4K display. Hisense promises that when this tech reaches US shores, both layers will be 4K. This means that essentially it"s an LCD TV with a 8 million zone backlight, far more than even mini-LED has. With two 4K modules, each pixel gets a far greater ability to block the light from the backlight, greatly improving this longstanding LCD issue and improving the contrast ratio.

Price-wise, Hisense is aiming to be cheaper than OLED, though probably similar-to or more than higher-end LCDs. For reference the HZ65U9E, its 65-inch model for sale in China now, is 17,999 yuan, which converts to about $2,500, £2,000, or AU$3,700.

Manufacturers have a lot of money in LCD, and that"s not changing any time soon. They"re always looking out for the next big thing, which is how we got OLED and how we"ll be getting MicroLED. Before we get to the next gen, there"s still a lot of improvement to be made with the current gen. Mini-LED is one aspect of that, and potentially so is dual-LCD. No doubt we"ll hear more about both at CES in January.

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.

Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:

Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:

MicroLED displays is an emerging flat-panel display technology consisting of arrays of microscopic LEDs forming the individual pixel elements. Like OLED, microLED offers infinite contrast ratio, but unlike OLED, microLED is immune to screen burn-in, and consumes less power while having higher light output, as it uses LEDs instead of organic electroluminescent materials, The list of MicroLED display manufacturers:

LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.

"Samsung Display has halted local Gen-8 LCD lines: sources". THE ELEC, Korea Electronics Industry Media. August 16, 2019. Archived from the original on April 3, 2020. Retrieved December 18, 2019.

"TCL to Build World"s Largest Gen 11 LCD Panel Factory". www.businesswire.com. May 19, 2016. Archived from the original on April 2, 2018. Retrieved April 1, 2018.

"Panel Manufacturers Start to Operate Their New 8th Generation LCD Lines". 대한민국 IT포털의 중심! 이티뉴스. June 19, 2017. Archived from the original on June 30, 2019. Retrieved June 30, 2019.

"TCL"s Panel Manufacturer CSOT Commences Production of High Generation Panel Modules". www.businesswire.com. June 14, 2018. Archived from the original on June 30, 2019. Retrieved June 30, 2019.

"Samsung Display Considering Halting Some LCD Production Lines". 비즈니스코리아 - BusinessKorea. August 16, 2019. Archived from the original on April 5, 2020. Retrieved December 19, 2019.

Herald, The Korea (July 6, 2016). "Samsung Display accelerates transition from LCD to OLED". www.koreaherald.com. Archived from the original on April 1, 2018. Retrieved April 1, 2018.

"China"s BOE to have world"s largest TFT-LCD+AMOLED capacity in 2019". ihsmarkit.com. 2017-03-22. Archived from the original on 2019-08-16. Retrieved 2019-08-17.

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There"s no doubt that dual layer LCD is a bit of a hot topic at the moment and one of the comments we got last week after Ken"s article (OLED and Dual Cell TV: The Battle Commences) asked why the technology is needed. It seems to me there are two big factors.

The first is the issue of the supply chain and the development of the LCD industry. The push by the Chinese to dominate LCD manufacture over recent years is continuing and more fabs are going to appear. New fabs make a lot of panels and they will be big panels. However, the Chinese TV brands will also want to move up-market to try to challenge Samsung, LG and Sony in the premium segments and that means competing with OLED, or supplying OLED.

There are also huge technical challenges in making large OLEDs - which is why LG has to use a very inefficient and inelegant method (based on patents that it acquired from Kodak) to make the panels and why Samsung abandoned its first attempt to make large OLEDs and seems to be hesitating about a second attempt. The technical challenges means that Chinese OLED developers are several years behind the Koreans, although they are trying hard to catch up.

So, the Chinese want to compete with OLED in the premium segment, but don"t have the means to do it with their own OLEDs, so they have to exploit what they do have, which is LCD. I do think they will struggle to make products that can meet the energy requirements for TVs in Europe and the US (I don"t know if there are stringent requirements in China - if you do, please leave a comment below). This will especially be the case for 8K sets. As I have already written, (Samsung"s Colour Performance Seems to Have Reduced with 8K) Samsung is challenged already to meet emerging energy level requirements with its 8K sets. Add dual panel and that compounds the problem.

The other issue that is still something of a concern to me and to quite a lot of others is the issue of burn-in on OLEDs. This is a well established problem and is acknowledged in the broadcast industry. In November last year, the EBU issued guidelines (downloadable here) on how content creators can minimise "image retention" in OLED broadcast monitors (although it"s acknowledged that image sticking can also be an issue for LCDs). That includes recommendations that even with SDR content, the brightness of static images is severely limited (to 40% peak white) and 47% of reference white (35% of peak white level for HDR signals using HLG). It also advises that saturated colours should be avoided on static images.

As we reported from IBC last year, Sony has switched to dual layer LCD for broadcast monitors and it seems likely that this kind of issue was one of the factors (along with limited peak brightness and colour volume for OLEDs and probably a better supply situation for LCD) in that decision.

Alibaba.com offers 3516 double lcd panel products. About 30% % of these are digital signage and displays, 1%% are lcd monitors, and 1%% are lcd modules.

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

Are there still possibilities to improve the contrast of an LCD panel? In addition to the use of local dimming and a solid anti-reflection layer, not much has changed in LCD panels for a long time. That could change with the introduction of Dual Layer LCD technology for televisions. A new term, which we explain in detail in this article.

By way of introduction, the technology appears under two different names: dual layer, or dual cell. We prefer to use dual layer, because that term is clearer.

Dual layer LCD is another way to achieve the same result. If one LCD panel can create a contrast value of 1,000: 1, you can create a theoretical contrast of 1,000: 000: 1 by placing two LCD panels one behind the other. That is an idea that has been around for a long time and has already been used in some medical imaging monitors.

This is how it works. In the structure of the LCD TV, a second LCD panel is slid between the backlight and the original LCD panel. That extra panel determines how much light passes through to the original panel, it only works in grayscale. That is why it is often referred to as a light modulator or dimming panel. You can consider it as a special kind of local dimming. Each pixel of the dimming panel counts as a dimming zone. For example, a dual layer LCD TV can have millions of dimming zones.

Theoretically, you would naturally opt for a 4K dimming panel. You actually have about 8 million dimming zones, one per pixel, and you are at the same level as OLED. But we also see that a Full HD dimming panel is chosen, which provides approximately two million dimming zones (one zone per four pixels). The reasons for this are of a different nature. It will undoubtedly be cheaper to use a 2K dimming panel instead of a 4K version. In addition, there are probably also technical reasons: for example, impact on energy consumption. And the extra benefit of a 4K panel may be too small.

We also notice that Hisense still communicated with one million dimming zones at IFA, which would indicate a dimming panel with only the half of Full HD resolution. At CES Hisense spoke of two million dimming zones.

Dual layer LCD TV should be a cheaper alternative to OLED, just like mini-LED. Currently there are professional grading monitors for the film studio of Sony (BVM-HX310) and Panasonic (Megacon). Towards consumers, only Hisense (HZ65U9E) comes out with this technology.

The contrast values ​​currently being claimed vary widely, varying between 1,000,000: 1 and 150,000: 1. This variation is large but not unexpected, since a small difference in black value has a huge impact on contrast. In any case, those values ​​are considerably better than for a traditional LCD TV that is somewhere between 1,000: 1 and 3,000: 1 (without local dimming).

LCD panel manufacturers have another reason to look at dual layer solutions. So many LCD factories have been set up in China that there is considerable overcapacity. Excess capacity reduces the price, which is good for the consumer, but manufacturers prefer to reduce their output a bit. But an LCD factory can be compared to many other factories: if it is not running at full capacity, there is a risk of financial loss. A solution where you can use that overcapacity to make a better product (in this case with two LCD panels) is of course attractive.

Unfortunately there are a few important hurdles for this technology, and the most important ones seems to us the energy consumption. An LCD panel has a considerable loss because the light has to go through different optical layers. We often see a figure of around 6% light efficiency. If we place two LCD panels behind each other, that problem will of course be much worse. That energy consumption will not be underestimated, we could already more or less estimate at the show of the Panasonic Megacon at IFA last year. Even when we were standing a meter from the screen you could still feel the heat coming from the screen. This is of course no problem for a studio monitor, but for a consumer product it is different.

Hisense claims that their panel has an efficiency of 4%. That may not seem dramatically less, but still, that means that you have to generate 50% more light in the background lighting to achieve the same brightness as a traditional LCD TV. Such a TV therefore uses at least 50% more power. That could be a problem given the strict energy consumption standards that will come in 2021.

The construction of such a panel is also a challenge. After all, the two LCD panels must be perfectly aligned, or there will be a shadow effect. If the pixel grid of the dimming panel is not perfectly hidden behind the grid of the second LCD panel, it casts a shadow on the second LCD panel. This requires clarity, but also creates other visible image errors. If too many faulty panels roll off the belt (in other words, if the “yield” is low), then that is reflected in a higher price. It remains to be seen whether the result is still economically meaningful.

Finally, we all want slim televisions, but two LCD panels are obviously thicker than one panel. The manufacturer can compensate for this by working with an edge-LED backlight, but in combination with a FALD backlight, such a TV would clearly be a bit thicker, although we do not expect the step to be very large.

Of course, the possible breakthrough of this technology also revolves around cost. At the moment, the price of dual layer LCD seems to be somewhere between a classic FALD LCD TV and an OLED TV, according to Trendforce analysts (attention, indicated prices are only for the panel, not for the finished TV). They also estimate the price to be slightly lower than that of a mini LED TV.

Dual Layer LCD technology for televisions offers interesting prospects. By sticking two LCD panels behind each other with LCD technology you can raise the contrast to OLED level and the fact that professional grading monitors use it is a clear indicator that the technology has potential. But the consumer market also imposes other requirements on a TV, in particular on energy consumption, and there remains a doubt as to whether dual layer LCD will not consume too much energy.

The technology might also find its way to monitors and laptop computers. displays. BOE (the Chinese panel manufacturer that makes the panels for Hisense) has already announced that it has also developed a 31.5-inch gaming monitor.

Due to the large number of LCD monitor inventory we get every day, we keep our prices on these items low to pass on the great savings to our customers. These consist of major brands such as Dell, Samsung, HP, LG, Acer, Lenovo, ViewSonic, NEC and many more. They are all tested, working and come with a 90 Day Warranty. So if you just want a great monitor at a good price, look no further.

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Dual-screen phones or phones with two displays have been around for many years, but in 2021, we have seen the concept elevate to a whole new level. Manufacturers are trying to reinvent the productivity and creativity aspects of the smartphone experience, and it all keeps leading back to more screen real-estate and multiple displays.

In the past, phones like the Yota phone and Meizu Pro 7 have made innovative use of two screens but the dual-screen phones of 2021 don’t really treat the extra screen as secondary but a full-fledged companion screen fit for hardcore multitasking.

Dual Screen and Foldable technology are simultaneously gaining ground. The biggest draw of Foldables is obviously their cool form factor. To be able to fold your phone screen is bleeding-edge technology that people naturally love to flaunt.

When we talk about dual-screen phones, though, we will be talking about phones that allow you to use both screens simultaneously. We have come to realize that such phones are so much better at dealing with hardcore productivity needs and are so much better when it comes to multitasking than bigger displays or bigger foldable displays.

The software and app support are not quite there yet, but as LG has shown, dual-screen phones need not be expensive and thus it would be easier to get more and more people to try these out which would ultimately provide an incentive for app developers to optimize their apps to leverage both displays.

It has a dual display, one on the outer side and the other one is visible when you unfold the device. In the unfolded state, the display of the device measures around 7.6-inch. The best part about the smartphone is that both its panels have a 120Hz refresh rate.

Surface Duo 2 is a second-generation dual-display phone from Microsoft that comes with some much-needed improvements – and presents a solid case for dual-display phones.

Samsung calls the display ‘Infinity Flex’ Dynamic AMOLED 2x which stretches 6.7-inches and is of 2640 x 1080 pixels resolution. When you scroll your finger over the middle of the screen, you’d feel the crease but it hides pretty well. And over long time usage, its presence might become second nature to you. There is also a small but useful 1.9-inch panel upfront. This offers a peek at notifications and can be used as a viewfinder for the camera, and easy access to widgets like music, weather, alarms, voice recorder, etc.

Primary Display:6.7 inches, 1080 x 2640 pixels, 120 Hz, AMOLED |Secondary Display:1.9 inches, 260 x 512 pixels AMOLED | Processor:Qualcomm Snapdragon 888 octa-core CPU |RAM:up to 8GB| Storage:up to 256GB | Software:Android 11 | Rear camera:12 MP + 12 MP Dual Rear | Front camera:10MP | Weight:183g | Dimensions:166 x 72.2 x 6.9 mm | Battery:3300mAh

LG Velvet (review) is a refinement of LG G8x ThinQ, at least with regards to dual-screen implementation. It’s powered by a dated 4G chipset and that’s something consumers might find a little difficult to look past in 2021. But if they can, the Velvet offers a premium experience at a mid-range price.

The idea once again is to use the two screens as two separate screens. This time the color temperature of the duo is well matched in the default color settings and you can add app pairs to quickly open two apps on two screens. This time, the dual-screen cover is being sold as an optional extra.

With this implementation, you get dual screens without having to compromise on flagship features and without inflating the cost. In India, the G8x ThinQ retails for around 50K and is often available for far lesser in recurring sales – which makes it a bargain.

LG V60 dual further refines the G8x ThinQ design but it’s bigger and bulkier. That makes room for a bigger 5000mAh battery, more cameras, and better audio but the combined weight of the case and cover reaches 360 grams.

Motorola has always tried its hand in different segments including the foldable or the dual screen segment too. The Moto Razr 5G by the company is proof of that. The smartphone runs on the Qualcomm Snapdragon 765 processor paired with 8GB RAM and 128GB internal storage.

As for the display, it has an 8.03-inch unfolded AMOLED display complemented with a 120HZ refresh rate. The folded display of the device measures around 6.53-inch and it also has an AMOLED panel and 120HZ refresh rate.

These are still early days for foldable and dual display phones. Manufacturers have made big investments in foldable technology which makes us believe that it is here to stay. On the other hand, the concept of dual-display phones might very well fall flat just as modular phones did. We will need to wait and watch for a couple more years to know if consumers really take to the form factor and if manufacturers are persistent enough to see this one through.

If you ask us, we’d say having an extra screen has its merits and once you are used to doing things the dual-screen way, it can get addictive. At the same time, lugging the extra heft around will only be truly meaningful when the majority app developers pitch in and innovate their apps for this form factor.