LG Display’s automotive OLED panel recognized for ‘best picture quality’ for passengers

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LG Display’s automotive OLED panel recognized for ‘best picture quality’ for passengers

 

  • Obtained international certification for ‘High Visibility Vehicle OLED’ from German TUV, a global certification body
  • Provides a wide viewing angle while consistently maintaining high image quality in a wide range of driving environments and low temperatures of -40 degrees Celsius

Applying new OLED technology that stacks light emitting devices in multiple layers, improving screen brightness and lifespan

LG Display (CEO and President Ho-Young Jung)’s automotive OLED panel was recognized for its best picture quality in the global market.

 

LG Display announced on the 26th that it had obtained the ‘High Visibility Automotive OLED (OLED)’ certification from Germany’s ‘TUV Rheinland’, a global certification body.

 

LG Display’s automotive OLED panel consistently realizes the best picture quality in a wide range of driving environments, including the brightness (10 to 5,000 lux) that the driver encounters during the day and at night, and maintains the same picture quality even at a harsh low temperature of minus 40 degrees Celsius. In addition, it was evaluated that it accurately expresses even small contents that are only 5% of the full screen size without distortion at any viewing angle between the driver’s seat and the front passenger’s seat.

 

This product applies a new OLED technology(tandem) that stacks R(red), G(green), and B(blue) light emitting devices in multiple layers to significantly improve screen brightness and lifespan compared to products with only one light emitting device. Existing LCDs for vehicles have limitations in that light leak around small content, lowering the contrast ratio, and slowing the response time in a low-temperature environment, leaving an afterimage. On the other hand, LG Display’s self-luminous vehicle OLED has a contrast ratio of 600,000 to 1, which greatly exceeds the certification standard (50,000 to 1) and maintains more than 99% of luminance and color despite rapid changes in the external environment of the vehicle. Also, the response speed is 0.66ms faster than the authentication standard (3ms, milliseconds), so there is no afterimage.

 

Sohn Ki-hwan, managing director of LG Display Auto Marketing/Product Planning, said “This certification proves that tandem OLED for automobiles is the only display that satisfies the highest picture quality and extreme lifespan”. So “We will provide our customers with a differentiated customer experience with a display that is safer to use while driving and more convenient when stopped” he said.

[2021 Visionox Technology Innovation Conference] Chief Executive Officer Zhu Xiujian, “We will provide the ultimate experience through form innovation, basic performance enhancement, and function integration”

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At the Visionox Technology Innovation Conference in 2021, Zhu Xiujian, Chief Executive Officer of Visionox Technology Product Engineering Center, gave a presentation on OLED industry trends and Visionox’s advanced technology exploration.

In the OLED industry trend, Chief Executive Officer Zhu emphasized, “Flexible OLED is expected to occupy more than 30% of the panels for mobile devices after 2023, and cost reduction is the only way to expand the market.”

In the OLED technology change for mobile devices that followed, “From 2011 to 2018, a full screen with a notch or a narrow bezel became a trend, from 2019 to 2020, we pursued morphological differentiation such as camera pop-up, punch hole, U-notch, and under panel camera,” he said. He also announced, “After 2021, basic performance such as high refresh rate and low power consumption has been strengthened, and more differentiated technologies such as foldable and advanced UPC are being developed.”

Finally, the Chief Executive Officer mentions form innovation, basic performance improvement, function integration and advanced technology innovation for Visionox’s product innovation solution, full screen and various folding technologies for shape innovation, visual experience and low power consumption with improved pixel structure and color performance for basic performance improvement, cost reduction through layer integration, fingerprint recognition or touch pressure sensing technology for functional integration, and advanced technology In Innovation, he finished the presentation by mentioning micro LED and saying that it will provide optimal solutions to users.

[UBI Research China Trend Report] BOE dominates OLED shipments for smartphones in October

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According to the ‘China Trend Report for the 1st week of December’ published by UBI Research recently, Among Chinese companies, BOE maintained the No. 1 position with an overwhelming share in OLED panel shipments for smartphones in October.

According to the report, in the flexible OLED shipments by Chinese companies in October, BOE had the most with 5.2 million units, followed by CSOT with 1.6 million units, Tianma with 1 million units, and Visionox with 940,000 units. In terms of market share, BOE was 59%, followed by CSOT, Tianma, and Visionox with 18%, 12%, and 11%, respectively.

As for Rigid OLED shipments, EverDisplay Optronics had the most with 1.7 million units and Visionox mass-produced 950,000 units. In terms of market share, EverDisplay Optronics accounted for 65% and Visionox 35%. Tianma, which previously mass-produced a small amount of rigid OLED, did not mass-produce rigid OLED panels in October.

As autonomous driving technology advances, the adoption rate of OLED will increase

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At UBI Research’s ‘OLED Settlement Seminar in the second half of 2021’ held on the 19th, Park Seon-hong, head of the Korea Automobile Research Institute, gave a presentation on ‘the status and outlook of future automotive display development’.

Responsible Park said, “If the autonomous driving technology is advanced, the number or time of driving will decrease, and the change of the interior space is essential because the driver pays attention to the interior environment of the vehicle. Through the change of the vehicle display, the change of the steering wheel to secure space, and the change of the seat, the efficiency of the space that can utilize the interior space can be increased.”

Among the changes resulting from the development of autonomous driving technology, Responsible Park said, “With the change of the display inside and outside the vehicle, the degree of freedom of space within the vehicle can be improved as buttons, switches, and gear knobs inside the vehicle are applied to the display.” In keeping with, the display mounted on the vehicle is also changing to a large-screen, large-area curved display.”

Responsible Park said, “Displays that secure the reliability of autonomous driving by communicating with the outside such as pedestrians and two-wheeled vehicles through external communication as well as the inside of the vehicle are gaining prominence. By displaying information about the vehicle’s condition (acceleration or deceleration, whether it is stopped, etc.), safety issues can be controlled.”

Currently, automotive displays have a high adoption rate of LCD, but OLED can realize flexible displays, and its thin thickness, high contrast ratio, fast response speed, and wide viewing angles make it possible to apply it in complex and diverse spaces inside automobiles in line with the era of autonomous driving. expected to increase. LG Display is already mass-producing POLED for automobiles, and Samsung Display and Chinese panel makers are also preparing for mass-production of OLED for automobiles.

As autonomous driving technology develops, automobiles are emerging as a new concept of ‘rest and comfort’ out of a means of transportation. While the evolution of in-vehicle displays is essential in such a leisure space, expectations are being raised on how much influence OLED will have on the market as a display for automobiles in the future.

Smartphone and foldable OLED shipments expected to exceed 700 million units in 2025

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At UBI Research’s ‘2021 OLED settlement seminar for the second half of the year’ held on the 19th, UBI Research CEO Choong-Hoon Yi gave a presentation on the settlement of small/mid-large OLED industry and future market prospects.

CEO Yi said, “The total sales of OLED for mobile devices in the third quarter was $10.3 billion, up 23.6% from the second quarter and 64.1% from the same period last year. OLED for phones grew to a meaningful number for the first time to $540 million in the third quarter.”

According to the announcement by CEO Yi, the total shipment of smartphones and foldable phones in the third quarter was 167 million, up 22.7% from the previous quarter and 55.3% from the same period of the previous year. “The smartphone market contracted in 2020 due to the spread of Corona 19 and sanctions by Huawei, but the market is growing out of this situation in 2021 thanks to the popularity of Apple’s iPhone 12,” said CEO Yi.

Comparing OLED shipments for smartphones in the third quarter by panel maker, Samsung Display took 72.9%, followed by BOE and LG Display with 9.4% and 5.8%, respectively. CEO Yi mentioned, “Samsung Display maintained 80% level just a year ago, but BOE is gradually gaining strength as BOE’s production lines are being prepared step by step.” and “In terms of sales, Samsung Display accounted for 79.0%, which is higher than the shipment share, and BOE, 8.8%, which is lower than the shipment share. This result appears because the panels of Samsung Display and LG Display are sold to Apple at the highest price.”

Next, CEO Yi predicted, “In terms of OLED shipments by country, Korea dominates the market with 78.7%, but the Chinese market, which currently accounts for 21.3%, will gradually grow and the shipments of the two countries will become similar in about five years.” He also predicted, “In order for the industry to grow, the top-level set makers in the supply chain are important, and based on China’s numerous set makers and the large domestic market, it is highly likely that the leadership will be transferred to China in about five years.”

In the smartphone market forecast analysis, CEO Yi said, “In 2021, OLED shipments for smartphones and foldable phones are expected to reach 580 million units, and the market will grow by 100 million units in the next two years, reaching 600 million units in 2023 and 700 million units in 2025. We will overcome it,” he predicted.

LG Display Wins Presidential Award for its Automotive P-OLED at the Korea Technology Awards

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SEOUL, Korea (Nov. 17, 2021) – LG Display, the world’s leading innovator of display technologies, announced today that its Automotive P-OLED display won the Presidential Award, the highest honor for the most revolutionary technology of the year, at the 2021 Korea Technology Awards in Seoul, Korea. This is LG Display’s second Presidential Award after first winning the coveted honor for its outstanding 65-inch Rollable OLED panel at the 2019 Korea Technology Awards.

Hosted by the Ministry of Trade, Industry and Energy, the nation’s most prestigious technology awards ceremony recognizes companies, research institutes, and universities that have developed groundbreaking technologies and products boasting excellence in performance and domestic industry impact.

Thanks to the self-emissive nature of OLED technology, LG Display’s award-winning Automotive P-OLED display provides incredible picture quality with real black to give drivers high clarity and outdoor visibility during both day and night. In addition to being more eco-friendly than its LCD counterpart, P-OLED has no need for a backlight which gives it a lighter, sleeker, more premium and flexible design.

Notably, it has received the High Visibility Automotive OLED and Eye Comfort Display certifications from TÜV Rheinland, a global independent inspection service. To leverage the diverse benefits of such an innovative and next-generation technology, leading automakers around the world are incorporating this display into their latest vehicles’ infotainment systems.

LG Display’s Automotive P-OLED display is touted by major global automakers, especially when it comes to high reliability even in the harshest environments. The company’s Automotive P-OLED is already globally recognized for its innovative technology, earlier this year picking up the Best New Display Component award at Display Week 2021 which was hosted by the Society for Information Display (SID).

In tandem with the rapidly growing market that is turning out more and more cars with larger multiple displays, LG Display aims to continue leading the market with its unique, differentiated P-OLED technology.

“We are grateful to have been recognized for the Automotive P-OLED technology we developed to bring enhanced safety, design innovation, and ESG values to our consumers,” said Kim Myoung-Kyu, Executive Vice President and Head of the Mobile Business Unit at LG Display. “We will continue to create new and innovative OLED technologies that provide unique and differentiated values to customers, thereby leading the market.”

Merck’s Blue Ink Material Lifetime Announced 65% Improvement Year-over-Year.

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At ‘Display Insight 2021’ held online on November 4th, ‘Joachim Kaiser’, global application manager of Merck, presented ‘Our OLED solutions – livilux®’. When presenting the ink portion of livilux’s OLED materials, Kaiser noted that “Inkjet printing is the only technology that combines RGB parallel pixel layout with scalability for large display sizes”.

Kaiser announced “Maximizing the performance of IJP devices requires a thorough understanding and optimization of state-of-the-art OLED materials, ink formulations optimized for each application, and the entire device stack” and “Merck can get a lot of benefits from IJP performance improvement from its experience in developing materials for deposition”.

Comparing the performance announced by Merck last year and this year, the luminous efficiency (cd/A) of red increased by 46% compared to the previous year, green by 10%, and blue did not change. External quantum efficiency (EQE) was 34.1%, increased by 20% for red, and 28%, increased by 5% for green, and there was no change in blue like the luminous efficiency. In terms of lifespan, 20% for green and 65% for blue were greatly improved. The lifespan of the red is 4,000 hours based on LT95 (last year’s red’s lifespan was 8,300 hours based on LT95), and it is being optimized to increase the lifetime reduced by improving efficiency.

Kaiser emphasized, “At Merck, we are constantly working to provide solutions to the problems of OLED panel design, such as improving the efficiency of Blue OLED, a new kind of emitter, and RGB side-by-side printing technology.”

BOE will start mass production of iPhone 13 panels from October.

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BOE will supply OLED panels for Apple’s iPhone 13 in the US. Samsung Display and LG Display were supplying two 5.4-inch and 6.1-inch 60Hz panels with LTPS(Low-Temperature Polycrystalline Silicon) TFT for the existing iPhone 13 panels. And Samsung Display was exclusively supplying 6.1-inch and 6.7-inch 120Hz products to which LTPO(Low-Temperature Polycrystalline Oxid) TFT was applied. The panel that BOE is supplying with approval to Apple this time is a 6.1-inch LTPS TFT panel. BOE’s panel is expected to start mass production at the end of October if Apple approves it soon.

Size[inch] TFT(Frequency) Panel Supplier
5.4 LTPS(60Hz) SDC, LGD
6.1 LTPS(60Hz) SDC, LGD, BOE(expected)
6.1 LTPO(120Hz) SDC
6.7 LTPO(120Hz) SDC

 

As for the panels that BOE supplied to the iPhone 12, EVEN process was carried out on the B7 (Chengdu) line, and the module process was carried out on the B11 (Myeonyang) line. The process was carried out separately due to the yield issue of the B7 module line, but from the iPhone 13, the deposition yield of the B11 line has improved and both the EVEN process and the module process are carried out on the B11 line. The total amount of panels that BOE will supply for iPhone 13 is estimated to be 15 million units, and although BOE has a target of producing more than 5 million units within this year, it is expected to be in the range of 2 to 3 million units in reality.

Meanwhile, it is known that BOE is also rapidly developing the LTPO line. The LTPO development speed of BOE’s B11 line is faster than that of the B7 line, and it is known that it already has mass production. At BOE, LTPO development is at a significant level, and attention is being paid to whether it will be able to supply LTPO panels to Apple’s next iPhone 14 (working title).

BOE has recently expanded its supply of flexible OLEDs to Samsung Electronics as well as Apple, and its influence in the flexible OLED market is growing. As BOE supplies new panels to Apple for the first time, attention is focused on how domestic panel makers will respond.

[GLOBAL TECH KOREA 2021] Samsung Display ‘Display Innovation: Form Factor, Energy Saving, Color’

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At ‘GLOBAL TECH KOREA 2021’ held in September 2021, Changhee Lee, Head of Samsung Display’s Next Generation Research Department (Vice President) delivered a keynote speech on the topic of ‘Display Innovation: Form Factor, Energy Conservation, and Color’.

For the first time in the form factor sector, Vice President Lee said, “The screen-to-body ratio, which was only 50% in the early days, has recently reached over 85%” and “We are in the process of introducing UPC (Under Panel Camera) technology to use full screens in various product groups he said. UPC technology can be applied to laptops as well as smartphones, and he said that advanced technology is needed to gradually increase the resolution of the camera and create the same luminance and color as the surrounding screen.

Vice President Lee said, “In 2010, flat screens evolved into various form factors such as foldables and rollables, and most inconveniences in durability, convenience, and usability disappeared”. In addition, Vice President Lee said, “Active devices such as OLEDs and transistors are placed on a neutral plane and designed to be protected by multiple layers, and a foldable display can be made with UTG with reduced thickness and increased durability”. Vice President Lee continued, “If not only folding but also rollable are made, the volume will be much smaller, and the technology is high enough to be commercialized now”, He said, “Materials with excellent properties that can be repeatedly deformed and restored will be developed and will be employed in various products through technology that can make them mechanically strong”. He said, “Materials with excellent properties that can be repeatedly deformed and restored will be developed and will be employed in various products through technology that can make them mechanically strong.”

In terms of energy saving, Vice President Lee explained that Samsung Display’s ‘Eco Square OLED’ is “a technology that reduces power consumption by removing the polarizer” and “We are further developing this technology to further reduce power consumption” He said. In addition, in terms of software, he said, “When ‘Windows 11 Dark Mode’, which can use OLED display more efficiently than before, is released, it is possible to reduce OLED light-emitting power consumption by more than 25%”.

In the color gamut sector, Vice President Lee said, “The higher the saturation and the wider the color gamut, the brighter the human body perceives it.”, and he said, “We are developing a new index called XCR (experienced color range) and evaluating the picture quality of the display through it”. In addition, he said, “We are developing a display with lower power consumption and higher saturation using quantum dots” and “It has already been applied to LCD and applied to Samsung Electronics’ QLED, and QD-OLED products will be released soon, and QD-LED will also be developed” he announced.

Lastly, Vice President Lee said, “Various sensors are being combined and applied to displays, and they have developed innovatively in various form factors, sizes, picture quality and the application changes have also expanded. Companies in the sector must work together to achieve technological innovation” he emphasized.

[GLOBAL TECH KOREA 2021] Solus Advanced Materials ‘Expansion of new businesses other than light emitting materials such as high refractive filler and TFE’

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At ‘GLOBAL TECH KOREA 2021’ held in September 2021, Taehyung Kim, Head of Electronic Materials Business Division, Solus Advanced Materials made a presentation under the theme of ‘Solus’ Giant Step To Lead OLED Materials Technology’.

Solus Advanced Materials has monopolized the HBL market for over 8 years as a domestic display material specialist. Director Kim of Solus Advanced Materials said, “During the development of HBL, we also developed ETL with similar chemical structure and important compatibility with HBL. The performance is evaluated as equal to or higher than that of other companies’ top performance, and it will be able to enter the market soon.”

Director Kim said, “Originally, we mainly developed ETL or HBL related to electronics, but it was difficult to develop from the perspective of the overall device, so we developed HTL related to hall.” In addition “The development of HTL was completed about two years ago through joint development with LG Display, and it was approved for large panel use in May” he said. He also said, “The panel supply is gradually increasing and will be expanded to the Guangzhou line by next year.”, “HTL is structurally related to g-prime for mobile, so it is expected that it can be expanded to g-prime on the mobile side,” he said.

Solus Advanced Materials is developing not only light-emitting materials, but also high-refractive fillers and TFEs. Director Kim said, “The mass production of fillers will be visible from this year. There are various materials such as epoxy, urethane, and acrylic type, and we plan to mass-produce the refractive index and viscosity control according to customer specifications.”

In the TFE sector, General Manager Kim said, “The permittivity of TFE currently used in the market is 3.0 or higher, and we received a request to lower the permittivity of the monomer by 30% or more to increase touch sensitivity two years ago and have been developing it. “The permittivity of the TFE monomer being developed by Solus is down to 20%, and the UV CUT function has achieved a specification of less than 5% at around 400 nanometers, and it is being promoted and tested by customers.”

Solus Advanced Materials is currently expanding its OLED-related businesses to various OLED-related luminescent materials such as HBL, ETL, and HTL, as well as high-refractive materials and TFE monomers. It is noteworthy in which areas these various business groups can shine in the future

 

Small OLED performance in the second quarter of 2021

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According to the market track on small OLED market performance of less than 10 inches published by UBI Research, Revenue and shipments in the second quarter were about $9.5 billion and 161.7 million units, respectively. QoQ(Quarter over Quarter) revenue and shipments decreased by -14.0% and -5.8%, respectively. Compared to the year over year (YoY), Revenue and shipments increased by 70.1% and 56.3%, respectively.

In 3Q, Samsung Display’s 6G LTPO TFT line capacity is expected to be increased to 60K units. LG Display decided to invest $15,000 in the LTPO TFT line for P6 ph3. The expected equipment installation time is the second quarter of 2022. BOE’s B15, which reviewed the investment in the 6G flexible OLED line, was changed to the 8.5G line for IT manufacturing. Revenue and shipments are expected to increase in the second half of 2021 with the mass production of Apple’s iPhone 13.

 

Medium & Large OLED performance in the second quarter of 2021

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UBI Research has published a market track on the market performance of 10-inch and larger OLEDs. Applications include TVs, monitors, laptops, and tablet PCs.

According to UBI Research’s Medium & Large OLED market track, the total revenue in the second quarter were about $1.5 billion, which is a 6.5% (QoQ) increase from the previous quarter and 129.6% in the same quarter of the previous year (YoY). In the second quarter, shipments totaled 5.1 million units, an increase of -3.6% (QoQ) and 40.4% (YoY). Samsung Display’s notebook OLED shipments in the second quarter were about 900K units. LG Display shipped 1.8 million TV panels in the second quarter of 2021.

Although there were concerns about a decrease in the utilization rate of the rigid OLED line due to the decrease in OLED for smartphones sold to Samsung Electronics, the A2 line is gradually being converted to production of OLED for laptops due to the increase in rigid OLED demand. In the first half of the year, two 12K lines were put into OLED production for notebooks, and in the second half, it is planned to increase to three or four lines.

Apple’s iPad, which will be mass-produced by Samsung Display from the end of the year, will use LTPO TFT and hybrid OLED (rigid substrate + TFE).

 

Samsung Display begins mass production of QD-OLED in the fourth quarter of 2021

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Samsung Display begins mass production of QD-OLED in the fourth quarter of 2021, a new growth opportunity in the large OLED market

Samsung Display is planning to start mass production of QD-OLED in earnest from the fourth quarter of 2021. The mass production scale is 8.5G 30K/month, and it is expected to be mass-produced mainly for 65-inch 4K resolution panels. Since three 65-inch panels can be produced in the 8.5th generation, about 1 million panels are expected to be mass-produced annually.

At the closing seminar held in the second half of 2020, UBI Research predicted that Samsung Display’s QD-OLED will produce 200,000 units in 2021, 600,000 units in 2022, and 800,000 units in 2025. However, as Samsung Display announced in its second quarter conference call that it will also introduce a monitor product with a smaller QD display than a TV, production is expected to vary depending on the proportion of products..

If mass production begins in the fourth quarter, QD-OLED TV will be unveiled for the first time at the CES 2022 exhibition held in Las Vegas in 2022, and the product is expected to be officially released in the first half of the year.

Joo-seon Choi, president of Samsung Display, emphasized in a recently published sustainability report that “If QD displays are commercialized, new growth opportunities will be created in the large display industry, which has been stagnant for a long time.”

Attention is paid to how much influence Samsung Display’s QD-OLED mass production will have in the large OLED market led by LG Display.

<Expected structure of QD-OLED, Source: UBI Research>

QNED (quantum dot nano-rod LED) structure and core technology

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Samsung Display research center is accelerating the development of QNED as the next-generation display following OLED.

The reason Samsung Display is developing QNED as part of its large-size display business is that it is the only display that can produce the image quality that Samsung Display’s biggest customer, Samsung Electronics, can satisfy.

Samsung Electronics’ TV business direction, which has the world’s No. 1 TV market share, is to use QD to make color gamut better than OLED, and to use a display that can maximize HDR performance with high luminance and excellent gradation characteristics on a bright screen.

The only display that can satisfy the needs of Samsung Electronics is QNED.

Items QNED OLED Mini-LED LCD
Color gamut best better best
HDR best better better
Luminance best better better
Contrast ratio best best better
Motion blur best best good

 

QNED is a self-luminous display and because it uses QD, it has the best color gamut, HDR, luminance, contrast ratio, and motion blur, etc., and is a product expected by Samsung Electronics.

It can be confirmed by the structure that QNED is the display with the best characteristics. QNED consists of a pixel layer with a nano-rod LED on the TFT structure of 3T1C used in large OLEDs, and a color conversion layer consisting of QD and CF (color filter) on top.

In OLED, electrodes (cathode and anode) and electrode line for transmitting a signal to a pixel are located above and below the light emitting material, whereas in QNED, both the signal transmitting electrode (pixel electrode) and electrode line are located on the same plane. In addition to the pixel electrode, the QNED additionally includes a reflective electrode to increase light output efficiency. The pixel electrode serves as an alignment electrode for aligning the nano-rod LED.

< QNED section structure >

< QNED pixel structure >

< QNED pixel planar structure >

Looking at the planar structure of a QNED pixel, a plurality of pixel electrodes are connected in series in one pixel, and a nano-rod LED is positioned between the pixel electrodes. The pixel electrode is on the pixel wall (PW) formed of an insulating material, and each pixel is surrounded by a bank (BNK) to separate regions.

 

The core technology of QNED is driving technology and sensing technology.

The driving technology includes a driving technique for aligning nano-rod LEDs and a driving technique for uniformly controlling pixels that may have a deviation in the number of nano-rod LEDs. The alignment circuit includes switching elements for each pixel, and the switching element applies an alignment signal to the pixel. The alignment state of the nano-rod LED is determined depending on which alignment signal is given to each pixel.

< Drive circuit for alignment >

< Sensing transistor for checking alignment >

The most important driving technology is a technology that supplies current to each pixel so that the luminance can be uniform across the entire screen even if the number of nano-rod LEDs per pixel is different. It is a method of controlling each pixel based on the data read from the sensing transistor.

[QNED Technology Completion Analysis Report] details the sensing transistor, sensing wiring, and sensing signals that can check the nano-rod LED alignment status on the panel.

 

As sensing technology, there are sensing technology (sensing transistor) designed inside QNED and sensing technology used in QNED manufacturing. The sensing technology used to manufacture QNEDs is inherent in inkjet systems. There are three sensing technologies in the inkjet system: the number of nano-rod LEDs in the ink and the viscosity analysis of the solvent, the analysis of the number of nano-rod LEDs sprayed on the panel, and the analysis of the nano-rod LED alignment state.

< Inkjet system configuration >

 

QNED has already proven that 4K 65 inches can be driven two years ago. Samsung Display is concentrating on finishing work to secure the screen uniformity of QNED.

Samsung Electronics widens the technology gap by applying new technology to ‘Galaxy Z Fold3’.

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According to the ‘2021 OLED Components and Materials Report’ recently published by UBI Research, the ‘Galaxy Z Fold3’, which is expected to be released by Samsung Electronics in August, has UPC (under panel camera) and pol-less (or color filter on) encapsulation, COE) and S Pen technology are expected to be newly applied.

First, UPC, a technology that realizes the full screen of a smartphone by placing the front camera under the screen, has been mentioned using a transparent PI substrate and various technologies such as laser patterning, but in the end, the cathode electrode is patterned with a laser and the resolution near the camera is different. Thus, it seems that the maximum transmittance was secured. It is analyzed that the transparent PI substrate was not applied to the mass production process due to the high process temperature of the TFT.

Although many panel makers have developed pol-less technology, which replaces polarizers with color filters and low-reflection technologies, they could not be applied because they did not show as much anti-reflection effect as polarizers. The polarizing plate is effective in preventing external light reflection, but reduces the amount of light emitted from the OLED light emitting layer by more than 50%. If the polarizer is removed, more light can be emitted with the same power to the outside, so if the same luminance is implemented, battery consumption can be reduced. Samsung Display seems to have implemented pol-less technology by applying color filters, low-reflection films, and black pixel define layer (PDL).

The S Pen is finally applied with an electro-magnetic resonance (EMR) method, and the 30 um thick product used in the previous work is expected to be used as it is for the UTG. The AES method, which does not require a digitizer, was also considered due to the flexibility issue of the digitizer made of metal, but it is expected that the S Pen will eventually be applied in such a way that the digitizer is located on both sides of the panel.

The ‘2021 OLED Components and Materials Report’ published this time includes not only the development trend of foldable OLED, but also the development trend of mobile devices and materials for TV. It is expected to be of great help to related companies.

<’Galaxy Z Fold3’ Expected Structure ©2021 UBI Research>

97.5% of 6-inch OLED smartphones released in the first half of 2021,

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Of the 122 OLED smartphones released in the first half of 2021, 119 6-inch smartphones were released, occupying an overwhelming share of 97.5%. Compared to the 6-inch smartphones released in 2018, which accounted for 78% of the total, it has become the mainstream of the smartphone market in just three years. One 5-inch model and two 8-inch models were released, and the 7-inch model was not released. The 5-inch model is Asus’ Zenfone8, the 8-inch model is Xiaomi’s Mi Mix Fold, and Huawei’s Mate X2.

By display design, hole model was released the most with 103, followed by notch model with 13 and narrow bezel model with 6. As in 2020, products with a home button were not released.

Looking at the distribution by resolution, 400~500ppi products were released the most with 64, accounting for 52.5% of the market share, 48 products with less than 400ppi and 10 products with more than 500ppi. The highest resolution product was Sony’s Xperia 1 II, which recorded 643 ppi.

In the display area (D.A), which is the ratio of the display to the size of the smartphone, products belonging to 80-90% accounted for 84.4%, 13.9% of those over 90% and less than 80% were not released. This is analyzed as a result of the disappearance of the home button and the continuous release of full-screen smartphones. The product with the highest D.A was 94.1%, which was occupied by Huawei’s Mate 40 Pro 4G, followed by Huawei’s Nova 8 pro in second place and Honor’s View40 in third place.

Finally, by country, China released the most with 104, followed by Korea with 12, Taiwan with 4, and Japan and Germany with 1 each.

How far has QNED completed?

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The reality of QNED (quantum dot nano-rod LED), which Samsung Display is preparing as a next-generation display, has become clear.

As a result of analyzing 160 patents applied by Samsung Display, it was confirmed that the structure constituting the QNED has already been completed, and that the only remaining task is to keep the number of nano-rod LEDs arranged in the light-emitting pixel constant.

As a result of classifying the contents of each patent according to the purpose of the application, a total of 39 types were found, with 49 cases related to device arrangement being the most. The following is 20 cases to improve the light efficiency.


The number of aligned nano-rod LEDs per pixel, which determines the yield and image quality characteristics of QNED, is determined by the distribution of LEDs in the ink, the number of LEDs injected into the pixel, and the alignment ratio of the injected LEDs.

If the distribution of the number of nano-rod LEDs per pixel is different, there is a change in the voltage applied to each pixel, resulting in a defect.

It has been confirmed that Samsung Display has already developed a method for making the number of nano-rod LEDs per pixel constant and an algorithm that can make the luminance uniform even when the number of nano-rod LEDs is different.

In the “QNED Technology Completeness Analysis” published this time, it was written as the contents of the previous report published through analysis of 94 patents and 66 newly added patents. It was analyzed and recorded.

In this report, QNED patent numbers, classification tables, and quantitative analysis data that have not been disclosed before are provided in Excel.

UBI Research predicts $2.25 billion in the OLED emitting material market in 2025

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UBI Research (www.ubiresearch.com), a company specializing in OLED market research, cites the recently published ‘OLED emitting material market track for the second quarter of 2021’. It is predicted that the market for light emitting materials for OLED will grow at an average annual rate of 9% to reach $2.25 billion in 2025.


The purchase amount of light emitting materials by Korean panel makers is expected to reach $1.61 billion in 2025 at an average annual growth rate of 5.8%, accounting for 71.6% of the total market. In addition, over the next five years, it is expected that Korean panel makers’ total purchases of light emitting materials will account for 72.4% of the total. In contrast, the amount of material purchases by Chinese panel makers is expected to reach $640 million in 2025 at an average annual growth rate of 8.7%.

By panel maker, Samsung Display is expected to purchase the most emitting materials with a share of 43.5% over the next five years, while LG Display is expected to purchase 28.9% and BOE 17.5%.

Finally, looking at each deposition method, it is expected that the light emitting material for RGB OLED will account for 78% of the total market, and the light emitting material for WRGB OLED will account for 20.4%. Samsung Display’s QD-OLED emitting materials, which are expected to be released in the second half of this year, are expected to account for less than 2% of the total material market as panel shipments are not expected to be large.

 

Small OLED performance and forecast in the first quarter of 2021

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UBI Research has published a market track on the market performance of small OLED under 10 inches. The main application products are foldable phones, smartphones, and watches.

According to UBI Research’s small OLED market track, OLED shipments for smartphones (including foldable phones) in the first quarter were 140 million units, a decrease of 13.5% compared to the previous quarter (QoQ), but increase of 32.4% compared to the same quarter of the previous year (YoY).


In the first quarter of 2020, OLED shipments also decreased due to a decrease in smartphone sales due to the coronavirus outbreak.

The reason for the 13.5% decrease compared to the fourth quarter of 2020 is that shipments surged in the fourth quarter of last year due to iPhone launches and strong sales.

In terms of sales by company, Samsung Display and LG Display account for 79.0% and 11.3%, respectively, and Korean OLED dominate the market with 90.3%.

Medium and large-sized OLED performance and forecast in the first quarter of 2021

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UBI Research has published a market track on the market performance of 10-inch and larger OLEDs. Applications include TVs, monitors, notebooks, and tablet PCs.

According to UBI Research’s medium and large OLED market track, the total sales in the first quarter was $1.46 billion, an increase of 16.9% compared to the previous quarter (QoQ) and 156.3% compared to the same quarter of the previous year (YoY).


The reason for the sales increase in the first quarter is due to the increase in sales of large OLED panels for TVs and OLEDs for notebooks. TV OLED panels sold 1.6 million units in the first quarter, achieving the best performance ever. Notebooks OLED shipments are also increasing rapidly from this year. Notebook.s have a lot of icons and are the most concerned about image sticking, which is considered the biggest drawback of OLED. However, Samsung Display has been promoting since 2020 by developing OLED for notebooks that completely overcomes the shortcomings of OLED as a manufacturing technology accumulated from smartphones. Although OLED sales for notebooks in 2020 were only 800,000 units, shipments of 1.1 million units were achieved in the first quarter of 2021. Samsung Display is gradually expanding its business area to IT products following smartphones.

 

Publication of China OLED industry trend analysis report

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Despite the ongoing Corona-19 situation and the US government’s sanctions on Huawei, the adoption of OLED by Chinese smartphone makers is gradually increasing.

The Chinese market, which had been concentrated in the low-end smartphone market, has been expanding into the mid-to-high-end market as Huawei increased its global market share. In particular in the Chinese market, with only the iPhone remaining in the premium smartphone market, Huawei, Oppo, Vivo, and Xiaomi have rapidly increased their market share in the mid- to high-end market with OLED smartphones.

Based on this growth, following Royole and Huawei, Xiaomi also launched a foldable phone in 2021. Chinese display makers have risen to the top spot in LCD production, and their OLED production technology has reached a significant level, and they are also directly producing foldable OLED, which requires the highest level of difficulty in OLED production technology. Foldable OLEDs from BOE and CSOT are used in Huawei and Xiaomi’s foldable phones.

In the “Chinese OLED Trend Report for 2021” published by UBI Research, the OLED-equipped smartphone, TV, and watch industries produced in China were analyzed, and technology development/investment trends and market performance of OLED panel makers were analyzed. In addition, the size of the light emitting material and component material market used by Chinese OLED panel makers was analyzed and summarized.

57 types of OLED smartphones released in the first quarter of 2021 were counted. This number is more than double the number of 27 species in the same quarter last year. This is because Chinese smartphone makers such as Oppo, Vivo, and Xiaomi have mass-released new OLED smartphones to occupy Huawei’s smartphone market.

The OLED market by Chinese panel makers is also growing explosively due to the active use of OLED by Chinese smartphone makers. In the first quarter of 2021, OLED sales for smartphones were counted at 990 million dollars, which increased by 38.3% compared to the same quarter of 2020 (YoY). The reason for the rapid growth of OLED sales is the increase in selling prices as OLEDs produced by Chinese panel makers move from low resolution to high resolution.

The amount of light emitting materials used by Chinese panel makers has not seen a significant increase yet. In the meantime, production was low due to low yield due to low production technology, but now production is increasing even with the same amount of material used. In 2020, 13.8 tons of luminescent material was used.

 

Forecast of OLED Light Emitting Materials Market in 2021: $15.2 billion

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Citing the recently published ‘2021 OLED emitting material report’, UBI Research (www.ubiresearch.com), a company specializing in OLED market research, forecasted that the OLED emitting material market size in 2021 will be $1.52 billion, a 17% increase from $1.3 billion in 2020.

By country, Korean panel makers’ material purchase rate is expected to account for 74.3% of the total market, and China is expected to account for 25.7%. By company, Samsung Display is expected to take the 1st place with 45.9% of the total, LG Display to take second place with 28.5%, and BOE to take third place with 13.7%.

By evaporation method, it is expected that the emitting materials for RGB OLED used for small OLEDs account for 81.4% of the total market, and the emitting materials for WRGB OLED of LG Display account for 18.3%. Samsung Display’s QD-OLED emitting material, which will be released in the second half of this year, is expected to account for less than 1% of the total material market as shipments of QD-OLED panels are not expected to be large.

Meanwhile, the ‘2021 OLED Emitting Material Report’ published this time includes not only the OLED emitting material market forecast, but also the development trend of low-power driving technology, the development trend of blue phosphorescent materials, and the material supply chain of Chinese panel makers. It is expected to be helpful for the companies related to emitting materials understand related technologies and forecast future technology directions and markets.

Why did Apple choose LTPO?

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  • Utilizing high refresh rate and reducing power consumption by up to 20%
  • but, 30% more complex process

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LTPO (Low Temperature Poly-crystalline Oxide) is an Apple’s technology made by combining LTPS (Low Temperature Poly-Silicon) and Oxide (oxide semiconductor, mainly IGZO) TFT technology. It is characterized by further improving power efficiency by using LTPS with fast electron mobility and oxide with less leakage current.

LTPS TFT with fast electron mobility is applied as a driving role, and oxide TFT with low leakage current is applied as a switch.

LTPO was first applied to smart watches before smartphones. The first device to be applied is the Apple Watch Series 4, released in 2018, and was supplied exclusively by LG Display. Samsung Electronics also applied LTPO to the Galaxy Watch Active 2 in 2019.

Apple Watch with LTPO applied                                   Galaxy Watch Active 2

LTPO technology, which is characterized by low power, is suitable for 5G smartphones that consume more power than existing LTE and is in high demand from major smartphone manufacturers. Samsung Display launched the Galaxy Note 20 Ultra, the first smartphone to which LTPO technology was applied.

Galaxy Note 20 Ultra with LTPO applied

It is expected that Samsung Display will dominate the market as it is leading in technology of LTPO OLED panels for Smartphones, and as a latecomer, LG Display is known to develop panels to be applied to the iPhone, which is scheduled to be released next year.

LTPO technology does not only have the advantage of low power. Because masks are added during the process, the unit price is increased due to the complexity of the process. Manufacturing methods are completely different from existing LTPS and Oxide TFT, and processes are more than 30% complicated. Complex manufacturing processes lead to higher unit prices.

From a manufacturer’s perspective, LTPO application effect must be as large as the increased process unit price. Considering this, it is analyzed that the need and effect of LTPO application are greater (because of the always-on display function) than smartphones. Smartwatches also had a greater effect on lowering power consumption than smartphones. If LTPO is applied, the refresh rate can be lowered, which reduces power consumption, because smartphones require a high refresh rate. The refresh rate is a figure that shows how many scenes are shown per second, and the higher the refresh rate, the smoother the screen transition.

In the case of smartphones, if you play games or watch videos, you can quickly switch to the screen with high refresh rates, allowing you to experience smooth and smooth gaming. Recently released flagship Smartphones are currently supporting 120Hz refresh rate. Considering this trend, LTPO technology, which can reduce screen conversion, is not very suitable for smartphone utilization.

However, in a still picture, LTPS requires a driving of 60Hz to maintain the brightness of the screen due to a high leakage current, but the oxide TFT can be driven at 1Hz because of a low leakage current, so there is no decrease in brightness.

 

As a result, the LTPO TFT has the effect of reducing the total power in mobile devices by 10% to 15% compared to the LTPS TFT.

 

To take advantage of LTPO’s technology, new applications and services that consumers want are needed. If it is always turned on and has a function to flow information or a service function to view information by turning on only a certain part of it, OLED and LTPO technologies will be combined and used as an advantage.

 

Equipped with OLED panel on Samsung Display in Hyundai Electric Vehicle’Ionic 5′

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  • Samsung Display’s first OLED panel mounted on Hyundai’s first exclusive electric vehicle,’Ionic 5′
  • Optional digital side mirror to mount camera and display screen
  • Significantly helps to improve the mileage and fuel economy of electric vehicles

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Samsung Display’s organic light-emitting diode (OLED) display will be used in Hyundai Motor’s first exclusive electric car,’Ionic 5′.

▲ Inside Hyundai’s first exclusive electric car Ionic 5

Ionic 5 can choose a side view camera as an option along with a standard side mirror that uses a regular mirror as before. With this option, there are no mirrors on the side mirrors. In the digital side mirror, a camera is mounted in the place of a general side mirror and a display is located inside. You can see the back and surroundings of the vehicle using the camera and display screen. The wider field of view reduces blind spots and has the advantage of being able to see the surroundings brightly even in the dark underground or at night. This display screen is Samsung Display’s OLED product.

The contract for supplying OLED for vehicles is significant in that it is a 10-year contract between Hyundai Motor Company and Samsung. Samsung Display signed a contract to supply 8-inch LCDs for navigation in 2011, and supplied supplies for three years, but there was no significant business link between the two groups. Hyundai Motor Group selected Samsung Display as the first supplier when it first selected OLED as a vehicle display. As Hyundai Motor adopts Samsung products for its first dedicated electric vehicle with high symbolism, analysts say that the scope of cooperation between Hyundai Motor Group and Samsung will continue to expand in the automotive industry.

Samsung Display has been supplying OLED displays to Audi’s electric vehicle ‘e-tron’ that applied the same system under the name of ‘virtual side mirror’ from 2018.

Audi’s first pure electric car’e-tron 55 quattro’ was applied with ‘virtual side mirrors’ for the first time in mass-produced cars. Are collected.

▲ Audi e-tron ‘Virtual Exterior Mirror’ with Samsung OLED

When the camera is mounted on the side mirror, it improves the aerodynamic flow, greatly helping to improve the mileage of electric vehicles and increase fuel efficiency of internal combustion engine vehicles. In addition, even if the window is covered by snow or rain and it is difficult to see the outside, the side view can be clearly seen through the internal display.

▲ Hyundai Ionic 5’digital side mirror’ equipped with Samsung OLED

The e-tron is equipped with a diamond-shaped OLED display, but the digital side mirror of Hyundai Ionic 5 has a square display design. When I got on the inside of the vehicle and looked at the digital side mirror, I could clearly see the outside from the inside through the screen. In addition, the screen response speed was also smoothly driven without interruption. It is a structure that can easily adapt to drivers who were used to the existing mirror-type side

 

 

 

 

Cover window market forecast for foldable phones

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The biggest difference between flexible OLED and foldable OLED will be the cover window material. In terms of price competitiveness, various Colorless Poly Imide (CPI) are superior to suppliers, but in the end, the cover window market is expected to depend on which material Samsung Electronics and Apple choose.

Samsung Display plans to supply only foldable OLEDs using UTG (Ultra Thin Glass) to Samsung Electronics and other China this year, and is expected to adopt UTG as the main cover window material in the future.

BOE and CSOT currently focus on transparent PI, but they are securing technology by continuously collaborating with UTG-related glass processing companies. For this reason, according to the UBI Research component and materials market track, UTG is expected to occupy 80% of the market for foldable cover windows in the future, and transparent PI is low in price and easy to apply to products larger than 10 inches As a result, it is expected to be applied to low-end models, tablets, and notebook models.

 

 

 

 

 

 

In 2020, small OLED shipments increased by 3.4%↑, sales decreased by 2.8%↓

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Corona 19 and Huawei’s US sanctions negatively affected the OLED market for smartphones, but it was a plus with Apple’s strong sales of iphone 12.

Samsung Display completed the Y-OCTA renovation of the Apple line in 2020, and the LTPO TFT secured a 30K scale. By the first half of 2021, the company plans to convert the LTPS line from Apple’s line to the LTPO TFT line.

The foldable phones released by Samsung Electronics in 2020 are the Galaxy Z Flip released in February and the Galaxy Z Fold 2 released in September, both in-folding and using UTG (ultra thin glass). Galaxy Z Fold 2 is a product to which LTPO TFT technology is applied.

BOE failed several times without exceeding the approval process in Apple’s iPhone12 quality test, but received final approval for panel supply at the end of December 2020. BOE’s new line, B12, is an Apple module line that starts bringing in equipment from December 2020, and is aiming for mass production in November 2021.

According to the annual small OLED display report published by UBI Research, small OLED shipments in 2020 increased by 3.4% compared to 2019, but sales decreased by 2.8%. The increase in shipments is due to the increase in OLED for watches, and the decrease in sales is due to the decrease in OLEDs for smartphones.

In 2020, the total sales of OLED for smartphones was 26.7 billion dollars, of which Samsung Display accounted for 78.8% with 21 billion dollars. LG Display has sales of $2.8 billion and a market share of 10.5%. Samsung Display accounted for 91.7% with 2.35 million dollars in 2019. Smartphone sales in 2020 decreased by 6.68 million units compared to 2019.

 

 

Middle and Large OLED sales growth of 40.2% in 2020

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Although Samsung Display’s rigid OLED line is expected to decrease due to a decrease in Huawei’s volume due to the US production, demand for rigid OLEDs is expected to increase as demand for laptops, monitors and tablet PCs is increasing. To respond to this, investment in rigid OLED lines in A4 is also being reviewed. This year’s notebook OLED panel is expected to come out with more than 10 different model product lines, and Apple’s OLED production for iPad is scheduled to start from 2022, so demand for middle and large-sized OLED panels is expected to increase.

In addition, LG Display, a leader in P-OLED supplying in the automotive field, is planning to supply plastic OLEDs for automobiles to German car makers by producing premium OLED panels, and Samsung Display is also supplying OLED panels for vehicles.

According to the 2021 middle and large OLED annual report published by UBI Research, the total sales of middle and large-sized OLEDs in 2020 was $3.882.7 million, and last year was $2.63 billion, an increase of 40.2% from the previous year. By application, the notebook and automobile markets have increased remarkably, and the notebook, monitor, and automotive product markets are expected to grow in 2021.

Samsung Display’s QD-OLED mass production is expected to be around December 2021, and 65-inch panels are highly likely to be used by Sony. Samsung Electronics is expected to receive only 32-inch QD-OLEDs for monitors, not purchasing 65 inches.

LG Display’s 2020 TV OLED panel shipments were counted to 4.4 million units, and if the Guangzhou plant operates at 90K from the third quarter, the production capacity will reach 8.5 million units in 2021.

 

 

2020 OLED annual performance analysis

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Total shipments of AMOLED in 2020 were aggregated to 575.78 million units. This is an increase of 20.41 million units compared to the 557.46 million units shipped in 2019.

The first OLED application products released in 2020 are for automobiles and for notebooks. Analysis by application product shows that the market has increased for foldable OLED, TV WRGB OLED, and watch OLED, and the decline is for smartphone and tablet PC.

Sales in 2020 were $32.68 billion, an increase of $2.3 billion from $32.45 billion in 2019. The insignificant increase in sales compared to the increase in shipments in 2020 is due to the decline in OLED unit prices for smartphones. This is because the OLED unit prices of iPhone and Galaxy S20, which are supporting the OLED market for smartphones, have decreased compared to 2019, and OLED shipments by Chinese panel makers have led to a decrease in OLED unit prices of Samsung Display.

In terms of sales by company, Samsung Display was found to be $22.3 billion, a decrease of $4.2 billion from $26.5 billion in 2019. Samsung Display’s smartphone OLED shipments amounted to 390 million units, a decrease of 40 million units compared to 430 million units in 2019, and sales decreased due to a drop in selling prices. As a result, Samsung Display’s market share in 2020 dropped sharply to 68.2%.

On the other hand, LG Display’s OLED sales reached $68.7 billion, and its market share surged to 21%. LG Display’s sales increase is due to increased shipments of POLEDs for iPhone and OLED panels for TVs.

BOE’s 2020 sales were $1.86 billion, up $7.5 billion compared to 2019. The market share was 5.7%, ranking third.

Korea’s market share in 2019 was 89.3%, falling below 90% for the first time.

http://olednet.com/wp-content/uploads/2021/03/oled4.jpg

Kopin’s 2.6K x 2.6K OLED display incorporated in Panasonic’s new VR glasses

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January 19, 2021 – Kopin Corporation announced its Lightning® 2.6K x 2.6K (2560 x 2560 resolution) OLED display on chip (DoCTM) are incorporated in Panasonic’s VR Glasses introduced at the CES 2021 this week.

<Panasonic’s new VR glasses, Source: Panasonic>

The Panasonic VR Glasses are the world’s first high-dynamic-range (HDR) capable, ultra-high-definition VR eyeglasses and offer stunning lifelike images. It comes in a very small form-factor thanks to the 1.3” displays and the slim Pancake® optics. The small, lightweight form factor makes the glasses comfortable to wear for extended periods of time, unlike today’s bulky VR headsets.

The 2.6K x 2.6K OLED DoC is made with Kopin’s patented ColorMaxTM technology for high color fidelity (> 100% sRGB) and a duo-stack OLED structure for high brightness (> 1000 nits). The 10-bit color control, together with the high color fidelity, high brightness and high contrast ratio (> 10,000: 1), enables the much-desired studio-quality, HDR capable VR experience.

“We have worked very closely with Panasonic and Lakeside Optoelectronic Technology on the display and with 3M on the Pancake optics for the Panasonic VR glasses,” said Dr. John C.C. Fan, President and CEO of Kopin.

Wu Di, President of Lakeside Optoelectronic Technology, said, “In the development of 2.6K x 2.6K OLED displays on silicon with Kopin, we optimized the OLED deposition processes, tuned our production line, and delivered the industry-leading products.”

The mini-LED TV market in 2025 is the trend of the premium TV market

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Products with more advanced LCDs appear. It is an LCD that has greatly improved brightness, HDR, and color reproducibility by adding QD film and mini-LED to BLU. The existing top-level LCD used a full array local dimming (FALD) BLU with a local dimming zone of about 300 to 500.

When the local dimming zone is increased to more than 3,000 by using mini-LED, the contrast ratio is significantly improved, and the halo effect is reduced compared to FALD BLU LCD TVs. In order to achieve the same performance as OLED, the local dimming zone must have as many pixels as the number of pixels, but due to the limitation of LED size reduction, mini-LED TVs to be sold this year will have a local dimming zone of 1,000-3,000 products.

To make the best LCD TV, a TFT substrate capable of AM driving mini-LED BLU is needed. The competitive pointer of LCD TVs using mini-LED BLU is a technology that can make the image quality similar to OLED while minimizing the local dimming zone and the number of LEDs. In order to realize the same image quality as OLED, the local dimming zone must be more than 100,000 divisions, and hundreds of thousands of LEDs and TFT substrates are required for driving, so the manufacturing cost of panels (including modules) becomes similar to that of OLED.

If the backplane of the mini-LED BLU uses FR4 or BT and the local dimming zone is divided into 3,000, the mini-LED TV manufacturing cost can be reduced to about half of that of the OLED TV, maximizing the quality of the LCD TV while lowering the price. The TV with the best cost performance is created.

The manufacturing cost of mini-LED BLU for 65-inch TVs with a local dimming zone of 10,000 divisions or less is analyzed at 250-1,100 dollars level, and the TV price is expected to range from 1,500 to 6,000 dollars depending on the size and local dimming division level. In 2021, the mini-LED TV market is expected to form 2.5 million units.

In terms of market share with OLED TVs, mini-LED TVs are expected to dominate after 2024.

TCL has led the development of Mini-LED TVs, but the market will be led by Samsung Electronics and LG Electronics.