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[IMID 2023] OLED exhibited by Samsung Display and LG Display

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At ‘IMID 2023’ held in BEXCO, Busan on August 22, Samsung Display and LG Display exhibited a number of OLED products.

First, in ‘IMID 2023’, Samsung Display introduced 77-inch QD-OLED and light field display ‘2D↔3D Display’, ‘Slidable Flex Solo’ and ‘Slidable Flex Duet’, ‘Rollable Flex’, ‘Flex G’, ‘Flex It exhibited foldable and sliderable products such as ‘S’ and ‘Flex Note’. Products other than ‘2D↔3D Display’ were exhibited at ‘K-Display 2023’ held last week, and the exhibition scale was smaller than ‘K-Display 2023’.

Samsung Display 2D↔3D Display

Samsung Display 2D↔3D Display

Samsung DIsplay Light Field Display

Samsung DIsplay Light Field Display

The size of the ‘2D↔3D Display’ exhibited by Samsung Display was 16 inches, the panel resolution was 3840×2400, and eyetracking technology was inserted to support a 3D viewing angle of more than 40°.

LG Display’s 77-inch 8K OLED with ‘META Technology’ applied, 45-inch and 27-inch gaming OLED, ‘34” Full Dashboard OLED’, ‘18” Rollable OLED’, ‘15.6” Light Field Display’, ‘0.42” OLEDoS’ exhibited.

LG Display Rollable OLED

LG Display Rollable OLED

The 18-inch rollable OLED, which LG Display unveiled for the first time in Korea, realized a brighter screen by applying a tandem element structure, and passed more than 100,000 rolling tests. The resolution of the ‘18” Rollable OLED’ is 2560×1440, the brightness is 1,000nits, the rolling radius is 20R, and the cover window material is TPU (Thermoplastic Poly Urethane). An official from LG Display said, “There is no plan to mass-produce 18-inch rollable OLED yet, and the rolling radius will be between 5 and 10R when mass-producing actual products.”

‘0.42” OLEDoS (OLED on silicon)’, an ultra-high resolution product with 3500ppi, was the same as the product exhibited at ‘K-Display 2023’. It is a product that combines the optical system of LetinAR, a domestic optical module developer, with the panel of LG Display.

[SID 2022] AUO 14 6” Rollable Micro LED Display Display Week 2022

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Resolution (pixel) : QHD (2560 x RGB x 1440)
Pixel Density : 202PPI
Brightness :1,000 cm/m²
Contrast Ratio : 1,000,000 : 1
Color Gamut : 100% NTSC
Pixel Configuration : Color Conversion
Viewing Angle : 179° / 179° / 179° / 179°
LED Size : 30um

[Press Release] AMOLED sales to reach USD 32.2 billion in 2019, up 13.8% from 2018

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UBI Research (CEO, Yi, Choonghoon) published the annual OLED report in 2019.

According to the report, the OLED market is expected to reach $ 32.2 billion in 2019 and 13.8% market growth. The market growth is due to the launch of a variety of applications in 2019. Foldable OLED will accelerate the growth of the flexible OLED market as a convergence product that fuses smartphones and tablet PCs, and 8K OLEDs and rollable OLEDs to be launched from 2H 2019 will further solidly support the premium OLED TV market. In addition, an increase in flexible OLED shipments due to improved yields by Chinese panel makers will support growth in the Chinese OLED market.

AMOLED revenue in the fourth quarter of 2018 was $ 7.9 billion, down 3.7% from $ 8.2 billion in the third quarter and down 10.4% from $ 8.8 billion in the fourth quarter of 2017. The quarterly OLED market was highly volatile due to sales fluctuations at Samsung Display.

Revenue in 2018 was $ 28.3 billion, up 7.1% from $ 26.4 billion in 2017. The growth slowed suddenly compared to growth of 58.7% in 2017. The sluggish growth is attributable to the sluggish OLED smartphone market, which drove the OLED market up until now. The OLED market for smartphones, which was worth $ 24.2 billion in 2017, was only $ 24.5 billion in 2018.

Flexible OLED panels are not being adopted in mid-end smartphones due to the high cost of manufacturing flexible OLED panels for smartphones. As a result, the oversupply will continue due to lack of demand compared to the 6G flexible OLED investment. In the fourth quarter of 2018, there was an oversupply of 31%. In the first quarter of 2019, oversupply will increase to 39% by overlapping seasonal demand decline.

 

CES2019, the Biggest Issue of TV is LG Electronics OLED TV R

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Reporter : Daejeong Yoon

The CES, held in early January of each year, is the most important event to understand all of the consumer electronics trends of the year. This year, TV makers from all over the world exhibited a variety of products to attract spectators to the event.

When OLED TV occupied more than 50% of the premium TV market with more than $ 2,000, the LCD TV industry sought to prevent the OLED TV market from expanding by exhibiting 8K LCD TVs to CES. However, the attention and admiration of the spectators were poured into OLED TV R.

The 8K TV market began to open slightly from last year, in preparation for the 8K broadcast starting from the Tokyo Olympics in 2020. LCD TV companies displayed 8K LCD TVs of various sizes to preoccupy the market with the keyword of 8K. LCD TV, however, has not been recognized by viewers as a new TV product since Sharp has already exhibited steadily.

Another reason is OLED TV R displayed by LG Electronics. In the main body with built-in speaker, OLED TV rises up and goes down again. A lot of people came to see OLED TV R to shoot.

 <LG Electronics, OLED TV R>

Last year, micro LED TVs became more prominent. In addition to Samsung Electronics, Sony, TCL and Hisense exhibited micro LED TVs this year. It seems that the gap of micro LED TV technology between Korean companies and Chinese companies is only about one year. In the micro LED TV market based on assembly technology that does not require special manufacturing technology, China, which is the world’s best LED industry and infrastructure, is expected to dominate the market soon.

However, as LG Display has a unique OLED TV manufacturing technology, which has a very complicated panel structure and manufacturing process, the technological gap between Korea and China is expected to be more than five years difference. In this situation, OLED TV R, released by LG Electronics, once again realizes that Korea’s OLED technology is the best in the world.

On the other hand, TV companies’ display of OLED TVs, except for LG Electronics, has stagnated. These companies are not yet receiving 8K OLED panels and rollable OLED panels from LG Display. Even Sony does not have any special features, only OLED TVs that are well known so far.

As a result, the CES TV show was notable only for LG Electronics.

It is judged that LCD TV using mini LED that TCL has released can compete with OLED TV in this exhibition. The contrast ratio is displayed as 1,000,000: 1 similar to OLED TV. Black is a very good product that has a vibrant color and contrast ratio similar to OLED TV. However, a holo-effect was found around the bright screen displayed on the black desktop. It is a phenomenon that the surroundings appear to spread brightly. As it is invisible to non-specialists, it is competitive in price and is a product that can compete well with OLED TVs.

< TCL, 8K QLED TV with mini LED>

LG Display Vice Chairman Han Sang-Bum, “50% of sales of OLED and upbringing business in 2020”

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Growing into the mainstream of OLED growth by expanding large OLED, differentiated products and supply

■ Small and Medium-sized POLED, strengthening fundamental business capacity and preparing future products such as Foldable

■ Develop commercial and automotive products, new technologies / new markets and develop into first-class business

LG Display is one of the world’s largest electronics exhibitors, and will hold a press conference at the Las Vegas Convention Center (LVCC) in Las Vegas on June 7, the day before the opening of the Consumer Electronics Show (CES) with Han vice chairman, executive vice president Kang In-Byoung, Strategy and Marketing Group Director Song Young-kwon, and other executives.

At the meeting, Han Sang-bum said, “Although there were many difficulties due to excessive supply and enormous investment due to intensified global competition last year, large-sized OLED business turned to surplus and stable profit was generated mainly in high value-added products. “This year, LG Display will focus on OLED investments, accelerating OLED growth, and focus on commercial and automotive businesses. By 2020, LGD will account for more than 50% of total OLED and growth businesses. “He said.

To this end, LG Display plans to expand its large-size OLED market, strengthen its fundamental business capabilities in small- and mid-sized P-OLED (plastic OLED) businesses, and develop new markets with differentiated commercial and automotive products.

■ Large OLED, differentiated products and supply expansion

Since LG Display first supplied OLED TV panels in 2013, LG Display has continued to develop its technology. And last year, it sold nearly 3 million units and developed into a strong player in the premium TV market. This year, the company plans to expand its TV product lineup from the existing 4K resolution to 8K, and to further enhance its competitiveness by further enhancing performance such as luminance and response time. In addition, the company will expand its market by expanding differentiated products such as wall paper, CSO (Crystal Sound OLED), rollable and transparent display. LG Display will complete the G8.5 OLED panel factory in Guangzhou, China in the first half of this year, and mass-produce OLED from the third quarter. Through this, the company plans to expand its sales volume from 2.9 million units in 2018 to 4 million units this year, and to achieve more than 10 million units in 2021.

In addition, LGD will expand sales areas for existing customers, strengthen collaboration with strategic customers, and increase sales of premium products such as ultra-large size panel.

■ Small and mid-sized P-OLED, strengthening fundamental business capacity and preparing future products.

LG Display is targeting the small- and mid-sized OLED market through P-OLED.

This year, it is a great challenge to develop core technologies and products for strategic customers in a timely to raise market share of small- and medium-sized panel.

In addition, LGD plans to increase the production capacity of the Gen 6 Gumi factory, which has a capacity of 15,000 sheets per month, and to expand the P-OLED production capacity by early stabilizing the Gen 6 factory in Paju.

In addition, LGD plans to steadily prepare related technologies and infrastructure so that future products such as Foldable can be released on time.

■ Commercial and automotive displays, Fostering first-class business

LG Display nurtures the rapidly growing commercial and automotive businesses to first-class business.

In the commercial market, LGD plans to pursue differentiated products such as 98 and 86 inches, ultra-slim products such as in-touch, bezel of 0.44 mm, transparent and gaming.

For automobiles, LTPS-based high-resolution LCDs and P-OLEDs are expected to focus on 8-inch and larger screens and high-resolution products. In addition, LGD will prepare its production infrastructure to expand its business in a timely manner and further strengthen its cost competitiveness, thereby achieving the first place in the fast growing auto market.

This year LGD plans to complete investment in preparation for the future, which began in 2017. LGD Han Sang-Bum, vice chairman of LG Display, said, “LG Display will be able to lead the global display market once again with OLED.

[IMID 2018] Samsung Display, The key material that will connect the smart world and the individual in the future is the display

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At IMID 2018 held in BEXCO, Busan, Korea on August 29, Kwak Jin-Oh, vice president of Samsung Display, delivered a keynote speech on the theme of ‘The Infinite Evolution with Display’. He emphasized “Display will be the key material to link to the smart world and the creation of a new world and environment will be accelerated.”

Comparing the evolution of living things with the evolution of displays, Kwak pointed out the direction of the next-generation displays such as ‘size diversity from small to large size, adaption in design inclusive of full screen and flexible, and convergence with other technologies’.

In terms of size diversity, Kwak said, “High-resolution displays that can feel realism in small and medium-sized area, and displays that can be immersed like a big screen in a movie theater in large area, are required.”

The design adaptation then was referred to design autonomy as one of the values of next-generation displays. He further emphasized the value of rollable and stretchable displays as well as foldable displays in small and medium sized displays.

Kwak said that Samsung is developing rollable displays as well as foldable displays that are currently attracting great interest. Unlike foldable display, rollable display requires consideration of the stress on the front of the panel. He commented “Because there are many things to consider such as the time when it is rolled up, and the number of times it is rolled and unrolled, the company is conducting research to solve them.”

He also introduced a stretchable display that can implement patterns freely, and explained that it is developing various structures using RGB pixel unit and stretchable unit to implement displays that have high reliability with low stress.

Mentioning about biotechnology at the convergence area, he pointed out that new fusion technologies need to be considered such as measurement of oxygen saturation by transmitting light to hemoglobin or changes in the wake up mode and sleep mode of the display depending on the melatonin change.

Finally, Kwak concluded that display is evolving to create a new society and environment, emphasizing that display is the key material to link between the individual and the smart world in the forthcoming 5G era.

OLED TV continuing to evolve

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At the ‘4th 2018 OLED Korea Conference’ hosted by UBI research on March 7-8, Dr. Han Chang-Wook, Chief Research Fellow of LG Display, made a presentation for the development process of OLED TVs and emphasized the image quality of OLED, design flexibility and expandability.

At first, Dr. Han introduced three core technologies including TFT technology, OLED stack technology, and compensation circuit design applied to OLED TVs. He said, “We changed the TFT as top gate coplanar structure for UHD implementation in bottom gate TFT applied to FHD.” He also mentioned “We changed the WRGB OLED pixel structure from 2 stack structure to 3 stack structure to improve the luminance and color reproduction ratio, and designed the compensation circuit so that it does not affect the OLED even on 8K large screen.”

He commented, “Unlike LCDs that control pixels with local dimming, OLEDs have pixel dimming controls, which allows for full black representation and less halo effects”

Explaining that OLED allows greater design flexibility and expandability because of the self-illuminating properties that does not require backlight, he referred to the mirror display and transparent display applicable to indoors, and the world’s first 88 inch 8K OLED TV and 65 inch rollable OLED TV exhibited at CES 2018.

Dr. Han said “We expect large OLED panel production to be tripled, compared to 2016, with the expansion of production lines and yield improvement in 2018. In addition, the company will be able to ship over 6 million large area OLED panels by 2020 through the expansion of its Paju and Guangzhou plants.” He also announced that the company will increase continuously the production for OLED panels, which were 5% of the total display panels in 2016, by 40% by 2020.

Stretchable OLED commercialization is on the rise

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Samsung Electronics and LG Electronics have steadily been releasing smartphones and smart watches using flexible OLED since 2013, and electronics companies in China have begun to put out one of them. In particular, Apple, the leader in the smartphone industry, is also seeing the launch of iPhone with flexible OLED, and the flexible OLED market is expected to grow further.

The shape of the flexible OLED was expected to be changed to foldable and rollable beyond the bendable. Recently, however, the display industry has surpassed this trend and has been focusing on the development of stretchable OLEDs.

<Development Roadmap of OLED, Source: Ubi Research>

A stretchable OLED is a type of a flexible OLED that is finally evolves, which means OLED having elasticity as like rubber band.

 

Samsung Display unveiled this stretchable OLED at SID 2017. Samsung Display’s stretchable OLED is 9.1 inch and implementable both convex and concave shapes. At the time, Samsung Display announced that it realized the world’s first technology to maintain the existing image quality while increasing the screen size to 12 mm in concave mode.

<9.1 inch stretchable OLED displayed by Samsung Display, Source: Samsung Display>

LG Display will also develop the stretchable OLED. LG Display announced on June 6 that it will develop backplane and photoluminescence materials, devices, and process source technologies with elasticity of more than 20% for a total of four years through a consortium with Korea University.

 

In addition, LG Display has developed flexible plastic substrate materials, flexible wiring materials and transparent electrode materials, stretchable organic light emitting materials, and flexible encapsulates, they will also acquire essential process technologies including thin film transistors (TFTs) and process architectures that enable low-temperature processing.

 

At present, stretchable related technology is not yet applied to production, or elongation is only about 5%, and the number of repeated stretching is limited. In addition, most of the source technology is in overseas, it is expected that Samsung Display and LG Display will be able to secure technological gap with latecomers.

Stretchable OLED is free of form restrictions and expected to produce applications in new areas when applied to a variety of applications such as smart phones, tablets clothes and human skin when they are commercialized.

Next to Bezel-less is full-screen, Prospect of 60% market share of full-screen OLED panel in 2020.

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Smartphone displays have been diversifying as the hard wares and soft wares in smartphone have been improving. Samsung edge series have successfully entered the flexible OLED smartphone market and other smartphone companies now are manufacturing flexible OLED based products. Furthermore we are expecting a big change in the display market as Apple may release its new iPhone models with OLED in 2017.

According to a recent study “Key Issue and The Market Analysis for Foldable OLED” from UBI research, it is expected that bezel-less type of flexible OLED, which is an upgraded model of dual edge display, will lead the market until 2017 and then there will be new smartphones with various forms of displays as new types of flexible OLED like full-screen, foldable, rollable displays will be launched after.

Also, they expected that full screen displays will be invented by reducing the size of the top and bottom bezels as well as sides bezels and they will be leading the market afterwards.

Moreover, according to the report, they analyzed that the full-screen OLED panels will be at around 17% market share of total flexible AMOLED panel market in 2017 and it will reach around 60% while it will surpass the market share of bezel-less typed panels.

Definition of each Flexible OLED type and the prospect of a market share (UBI Industrial Research)

Researchers also expected that there will be a strong chance that they will release new smartphones with foldable display in 2017 to see how the market reacts and they will get seriously start to manufacture mass production from 2019, taking consumers needs into consideration and anticipating the direction of technology and pace of change. In addition, the size of foldable smartphone’s market is expected to take up to 2% market share by 2020 as around 1.5 million foldable smartphones will be expected to be manufactured.

History of each Smartphone display types. (UBI Industrial Research)