dual lcd panel manufacturer

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.

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.

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, va double lcd panel.

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.

What you"re looking at here is not an OLED but a complicated dual panel LCD monitor. It has a 4K outer panel with a monochrome inner panel that modulates an LED backlight. The system, which is made up of multiple optical sheets and layers, can dim the picture at the pixel level, the kind of thing that OLED screens are known for. Again on the OLED comparison, Panasonic claims it can reach a contrast ratio of 1,000,000:1. It can also crank up brightness to 1000 nits while covering 99 percent of the DCI P3 color standard.

In person, it was a convincing demonstration of a fixed demo. Panasonic"s demo reel was heavy on the contrasts and dark scenes to showcase the depths of its prototype"s blacks. Lots of moody black horses, vivid reds and stark landscapes. We"d love to see something that showed of the subtle range of colors and tones apparently available to this monitor. And experts might feel the same. The technology is likely the realm of Hollywood productions and TV serials for now, but it"s proof that LCD isn"t going quietly into the night.

Panasonic first announced this in late 2016, while production displays are now showing up at recent conventions.  Blur Busters saw such a dual-panel technology at DisplayWeek 2019 by HiSense, a Chinese manufacturer. This time, it is a Japanese / North American brand that is currently adopting the same panel technology.

The inner workings behind it, is that it’s basically a dual panel LCD monitor instead of an OLED. It has a 4K outer panel and a monochrome inner panel that modules an LED backlight.

This means that you can get the light control of an OLED while still being able to hit HDR light peaks of an LCD screen, without having any of the image retention issues.

Monitor Display Panel BOE monitor display panels cover a full range of products from 18.5 inches to 43 inches, with high image quality, wide viewing angles, high refresh rate, low power consumption, a borderless design, and other features. Resolution of up to 8K can be achieved. The products are widely used in entertainment, office, professional design, and other fields.

In both LCD and OLED displays, producing these cells – which are highly complex – is by far the most difficult element of the production process. Indeed, the complexity of these cells, combined with the levels of investment needed to achieve expertise in their production, explains why there are less than 30 companies in the whole world that can produce them. China, for instance, has invested more than 300 billion yuan (approximately $45 billion USD) in just one of these companies – BOE – over the past 14 years.

Panox Display has been involved in the display industry for many years and has built strong and long-term partner relationships with many of the biggest OLED and LCD panel manufacturers. As a result, we are able to offer our clients guaranteed access to display products from the biggest manufacturers.

LG Display was, until 2021, the No. 1 display panel manufacturer in the world. Owned by LG Group and headquartered in Seoul, South Korea, it has R&D, production, and trade institutions in China, Japan, South Korea, the United States, and Europe.

Founded in 2001, AUO – or AU Optronics – is the world’s leading TFT-LCD panel manufacturer (with a 16% market share) that designs, develops, and manufactures the world’s top three liquid crystal displays. With panels ranging from as small as 1.5 inches to 46 inches, it boasts one of the world"s few large-, medium -and small-sized product lines.

AUO offers advanced display integration solutions with innovative technologies, including 4K2K ultra-high resolution, 3D, ultra-thin, narrow bezel, transparent display, LTPS, OLED, and touch solutions. AOU has the most complete generation production line, ranging from 3.5G to 8.5G, offering panel products for a variety of LCD applications in a range of sizes, from as small as 1.2 inches to 71 inches.

Now Sharp is still top 10 TV brands all over the world. Just like BOE, Sharp produce LCDs in all kinds of size. Including small LCD (3.5 inch~9.1 inch), medium LCD (10.1 ~27 inch), large LCD (31.5~110 inch). Sharp LCD has been used on Iphone series for a long time.

Beside those current LCDs, the industrial LCD of Sharp is also excellent and widely used in public facilities, factories, and vehicles. The Sharp industrial LCD, just means solid, high brightness, super long working time, highest stability.

Since its establishment, Truly Semiconductors has focused on researching, developing, and manufacturing liquid crystal flat panel displays. Now, after twenty years of development, it is the biggest small- and medium-sized flat panel display manufacturer in China.

Truly’s factory in Shanwei City is enormous, covering an area of 1 million square meters, with a net housing area of more than 100,000 square meters. It includes five LCD production lines, one OLED production line, three touch screen production lines, and several COG, LCM, MDS, CCM, TAB, and SMT production lines.

Its world-class production lines produce LCD displays, liquid crystal display modules (LCMs), OLED displays, resistive and capacitive touch screens (touch panels), micro camera modules (CCMs), and GPS receiving modules, with such products widely used in the smartphone, automobile, and medical industries. The LCD products it offers include TFT, TN, Color TN with Black Mark (TN type LCD display for onboard machines), STN, FSTN, 65K color, and 262K color or above CSTN, COG, COF, and TAB modules.

In its early days, Innolux attached great importance to researching and developing new products. Mobile phones, portable and mounted DVD players, digital cameras, games consoles, PDA LCDs, and other star products were put into mass production and quickly captured the market, winning the company considerable market share.

Looking forward to the future, the group of photoelectric will continue to deep LCD display field, is committed to the development of plane display core technology, make good use of global operations mechanism and depth of division of labor, promise customers high-quality products and services, become the world"s top display system suppliers, in 2006 in the global mobile phone color display market leader, become "Foxconn technology" future sustained rapid growth of the engine.

Founded in June 1998, Hannstar specializes in producing thin-film transistor liquid crystal display panels, mainly for use in monitors, notebook displays and televisions. It was the first company in Taiwan to adopt the world’s top ultra-wide perspective technology (AS-IPS).

The company has three LCD factories and one LCM factory. It has acquired state-of-the-art TFT-LCD manufacturing technology, which enables it to achieve the highest efficiency in the mass production of thin-film transistor liquid crystal display production technology. Its customers include many of the biggest and most well-known electronics companies and computer manufacturers in Taiwan and overseas.

TCL CSOT – short for TCL China Star Optoelectronics Technology (TCL CSOT) – was founded in 2009 and is an innovative technology enterprise that focuses on the production of semiconductor displays. As one of the global leaders in semiconductor display market, it has bases in Shenzhen, Wuhan, Huizhou, Suzhou, Guangzhou, and India, with nine panel production lines and five large modules bases.

TCL CSOT actively produces Mini LED, Micro LED, flexible OLED, printing OLED, and other new display technologies. Its product range is vast – including large, medium, and small panels and touch modules, electronic whiteboards, splicing walls, automotive displays, gaming monitors, and other high-end display application fields – which has enabled it to become a leading player in the global panel industry.

In the first quarter of 2022, TCL CSOT’s TV panels ranked second in the market, 55 inches, 65 " and 75 inches second, 8K, 120Hz first, the first, interactive whiteboard and digital sign plate; LTPS flat panel, the second, LTPS and flexible OLED fourth.

EDO (also known as EverDisplay Optonics) was founded in October 2012 and focuses on the production of small- and medium-sized high-resolution AMOLED semiconductor display panels.

Tianma Microelectronics was founded in 1983 and listed on the Shenzhen Stock Exchange in 1995. It is a high-tech enterprise specializing in the production of liquid crystal displays (LCD) and liquid crystal display modules (LCM).

After more than 30 years of development, it has grown into a large publicly listed company integrating LCD research and development, design, production, sales, and servicing. Over the years, it has expanded by investing in the construction of STN-LCD, CSTN-LCD, TFT-LCD and CF production lines and module factories across China (with locations in Shenzhen, Shanghai, Chengdu, Wuhan and Xiamen), as well R&D centers and offices in Europe, Japan, South Korea and the United States.

JDI (Japan Display Inc.) was established on November 15, 2011, as a joint venture between the Industrial Innovation Corporation, Sony, Hitachi, and Toshiba. It is dedicated to the production and development of small-sized displays. It mainly produces small- and medium-sized LCD display panels for use in the automotive, medical, and industrial fields, as well as personal devices including smartphones, tablets, and wearables.

Although Sony’s TVs use display panels from TCL CSOT (VA panel), Samsung. Sony still produces the world’s best micro-OLED display panels. Sony has many micro OLED model such as 0.23 inch, 0.39 inch, 0.5 inch, 0.64 inch, 0.68 inch, 0.71 inch. Panox Display used to test and sell many of them, compare to other micro OLED manufacuturers, Sony`s micro OLEDs are with the best image quality and highest brightness (3000 nits max).

Back in 2016, to determine if the TV panel lottery makes a significant difference, we bought three different sizes of the Samsung J6300 with panels from different manufacturers: a 50" (version DH02), a 55" (version TH01), and a 60" (version MS01). We then tested them with the same series of tests we use in all of our reviews to see if the differences were notable.

Our Samsung 50" J6300 is a DH02 version, which means the panel is made by AU Optronics. Our 55" has an original TH01 Samsung panel. The panel in our 60" was made by Sharp, and its version is MS01.

Upon testing, we found that each panel has a different contrast ratio. The 50" AUO (DH02) has the best contrast, at 4452:1, followed by the 60" Sharp (MS01) at 4015:1. The Samsung 55" panel had the lowest contrast of the three: 3707:1.

These results aren"t really surprising. All these LCD panels are VA panels, which usually means a contrast between 3000:1 and 5000:1. The Samsung panel was quite low in that range, leaving room for other panels to beat it.

The motion blur results are really interesting. The response time of the 55" TH01 Samsung panel is around double that of the Sharp and AUO panels. This is even consistent across all 12 transitions that we measured.

For our measurements, a difference in response time of 10 ms starts to be noticeable. All three are within this range, so the difference isn"t very noticeable to the naked eye, and the Samsung panel still performs better than most other TVs released around the same time.

We also got different input lag measurements on each panel. This has less to do with software, which is the same across each panel, and more to do with the different response times of the panels (as illustrated in the motion blur section). To measure input lag, we use the Leo Bodnar tool, which flashes a white square on the screen and measures the delay between the signal sent and the light sensor detecting white. Therefore, the tool"s input lag measurement includes the 0% to 100% response time of the pixel transition. If you look at the 0% to 100% transitions that we measured, you will see that the 55" takes about 10 ms longer to transition from black to white.

All three have bad viewing angles, as expected for VA panels. If you watch TV at an angle, most likely none of these TVs will satisfy you. The picture quality degrades at about 20 degrees from the side. The 60" Sharp panel is worse than the other ones though. In the video, you can see the right side degrading sooner than the other panels.

While we didn"t test these TVs for gray uniformity, black uniformity, or out-of-the-box color accuracy, these can also vary between individual units due to manufacturing tolerances. Still, we can make some assumptions that the experiment bears out:

It"s unfortunate that manufacturers sometimes vary the source of their panels and that consumers don"t have a way of knowing which one they"re buying. Overall though, at least in the units we tested, the panel lottery isn"t something to worry about. While there are differences, the differences aren"t big and an original Samsung panel isn"t necessarily better than an outsourced one. It"s also fairly safe to say that the same can be said of other brands. All panels have minute variations, but most should perform within the margin of error for each model.

To meet strong demand for LCD panels for TVs, Sharp Corporation will double current production capacity at its LCD panel plant (SDP*1) located in GREEN FRONT SAKAI, Sakai City, Osaka Prefecture, Japan, to 72,000 substrates per month.

This LCD panel plant is the first in the world to employ 10th-generation glass substrates. Using Sharp’s proprietary UV2A*2 photo-alignment technology, the plant produces high-contrast panels offering outstanding energy efficiency in screen sizes of 40 inches and larger. These panels have been highly rated by LCD TV manufacturers around the world.

Sharp will be creating LCD panels featuring its proprietary UV2A technology and four-primary-color technology*3 at this state-of-the-art plant. In addition, Sharp will strive for further enhancements in cost competitiveness, and will continue to expand the market for large-screen displays, including LCD TVs and digital signage.