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[2nd OLED KOREA Conference] Visionox Reveals Core Keyword for Flexible OLED Surge

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On February 24, Dr. Xiuqi Huang, Visionox’s general manager, gave a keynote speech at the 2nd OLED KOREA Conference (Feb 24-25). With the presentation title of Development of AMOLED Display: From Rigid to Flexible, Dr. Huang discussed how the flexible display was introduced and its future.

 

Flexible display is expected to solve CRT’s heavy weight, and FPD’s design limitation. Key issues include thin film formation process, structure that can withstand bending, and materials with high tensile strength. Dr. Huang emphasized that OLED is a display that can solve all 3 issues.

 

In order for flexible OLED to make the leap, Dr. Huang announced that 7 technological developments need to be carried out: encapsulation, TFT backplane, array design, flexible technology, flexible substrate, stress management, and module integration.

 

Visionox first developed flexible OLED in 2001, and revealed 5.2 inch flexible AMOLED of rollable type with 3 mm curvature radius and 20 um thickness in July 2015. They are aiming for mass production within 2 years.

 

Regarding OLED mass production, Dr. Huang revealed that the Gen 5.5 AMOLED mass production line phase1 4K will be increased to 15K until 2016, and Gen 6 AMOLED mass production line is expected to be in operation in 30K volume in 2017.

 

[2nd OLED KOREA Conference] LG Display, OLED is the Next Generation Display that Satisfies Both Performance and Design

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In the 2nd OLED KOREA Conference (Feb 24-25), Won-Gyun Youn, LG Display’s head of OLED TV Product Planning Team, gave a keynote speech. Through the presentation, he emphasized the importance of display’s design and performance and discussed why OLED will become important in next generation display.

 

Youn told the attendees that in the last few years, display performance issues, such as 3D, UHD, and HDR, and design issues, such as curved and super slim, arose together. Emphasizing these issues, Youn revealed that OLED is the display that can solve both. He added that in terms of performance, OLED can actualize perfect black and colors, cleanly express movement, and has wide viewing angle. In terms of design, OLED is thin and flexible, and can produce diverse shapes and be transparent.

 

LG Electronics and LG Display recently installed ultra large OLED signage OLED Moment in 2 places inside Incheon International Airport. They also presented OLED sculptures in various shapes such as tunnel, waves, cylinder, and others using 250 units of 55 inch OLED panels at N Seoul Tower. The 2 companies are carrying out aggressive marketing promoting OLED. Regarding OLED’s future, in short term, form factor changes are expected to occur following design change, and in mid-to-long term, the paradigm will shift with the introduction of rollable and transparent display.

 

Youn revealed that at present OLED has to resolve the expansion of the market and infrastructure, and improvement of productivity and technology. In order to solve this, research in improving the TFT mobility by more than 50%, and increasing the efficiency and lifetime is being carried out. He also added that they are researching ink-jet process, manufacturing equipment, and materials to develop soluble process.

 

[2nd OLED KOREA Conference] Samsung Display, Future Display’s Virtue is Design Freedom

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Insun Hwang, Samsung Display’s principal engineer of the Frontier Technology Team, announced that as the display market is expanding, the key factor for positive outlook for future display is ‘design freedom’.

 

At the 2nd OLED KOREA Conference (Feb 24-25) hosted by UBI Research, Hwang gave a keynote presentation.

 

During the presentation, Hwang announced that the mobile overtook TV as the medium that people use to access daily media. According to the presentation materials, the mobile usage is increasing each year, while the TV usage is decreasing. Also as the mobile usage of people under 50 is higher than that of TV, Hwang forecast that the number of people using mobile to access information will increase. He added that if the display panel price falls down, the number of the display panels will become higher than the number of users and forecast positive future for the display market.

 

Hwang particularly mentioned that AMOLED applied products will increase as it emits less harmful blue light and is human friendly, giving smartwatch and VR as the current examples. He estimated that the smartwatch market can expand through differentiated strategy with new functions and designs. Additionally, as an issue that needs to be solved, he mentioned that the resolution of VR falls as the distance between the user and display is short. High resolution is the key in VR, and Hwang explained that approximately 2,000 ppi is required for suitable realism. He also forecast that the automotive display will lead the display field and the future market. He further explained that as OLED can actualize the curvature and transparency, it is appropriate for automotive display.

 

However, Hwang also mentioned OLED’s lack in technology. Pointing out that technology for plastic window, flexible touch, encapsulation, and backplane falls short of what the market requires for flexible display and design freedom, Hwang described the need for OLED technology development.

 

Hwang estimated many flexible display equipped smart products in future, and concluded that display’s design freedom will be the most important issue.

[2nd OLED KOREA Conference] Looking at the Future Through Display Trend

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Choong Hoon Yi, the president of UBI Research, discussed the trend change of CES 2016 and the effects on future OLED display and market forecast.

 

During the 2nd OLED KOREA Conference (Feb 24 – 25), Yi gave a key note presentation titled ‘Dynamic Change in OLED Industry’.

 

Discussing CES 2016, Yi first gave VR and drones as display related hot issues. However, he defined the 2 products as items that bring enjoyment to the users rather than products that are necessary in everyday life. Yi estimated that the market is expected to grow but with some limitation.

 

The second issue Yi gave was automotive display which he forecast significant growth as dashboard attachment from the exhibitions by automotive and related companies that became more prominent since the last CES. Volkswagen particularly drew attention with IoT function attached dashboard display that can control electronic appliances at home. Additionally, Hyundai Mobis and Denso embedded display for side mirror use on the dashboard.

 

Yi reported that in CES, for TV section which is the most important home appliances, LG Electronics’ OLED TV decidedly stood out. At CES 2016, LG Electronics impressed the viewers by actualizing the blackness of the space and fiery sun filmed by NASA. Samsung Electronics exhibited existing SUHD TV with quantum dot display. Japanese companies such as Panasonic and Sony presented LCD panel applied TV.

 

Additionally, Yi told the attendees that Samsung’s transparent OLED using Galaxy Gear promotion and LG’s dual-view curved tiling OLED promotion of various home appliances were impressive. He added that these exhibitions were only possible by companies currently producing OLED. Forecasting that OLED market will exceed 1,000 million units of shipment in 2020 and mentioning investment forecast following this, Yi concluded his presentation.

JDI Announces OLED Mass Production in 2018

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Japan Display (JDI) officially announced OLED mass production. The press, including the Sankei Shimbun and the Nikkei, reported that on January 22 JDI revealed their plans to begin mass production of OLED panel to be used in smartphone from 2018.

 

JDI continued development with the aim of LTPS TFT and WRGB OLED technology applied high resolution AMOLED panel mass production for mobile device, and revealed the results through exhibitions in recent years.

 

In Display Innovation 2014 (FPD International) and SID 2015, JDI have presented 5.2 inch FHD flexible AMOLED panel. Particularly, in SID 2015, JDI showed a notepad equipped with flexible OLED panel.

 

JDI is likely to mass produce flexible AMOLED following the current mobile device market trend. Although the mass production technology was not mentioned, due to the client demands, it is estimated that either the RGB method, which is being used by LG Display and Samsung Display, or WRGB method, which is being developed by JDI, will be selected.

 

At present, only Samsung Display and LG Display can mass produce flexible AMOLED panel, but Chinese companies are fast in pursuit. There is much interest in how this JDI’s mass production announcement will affect the future OLED market.

 

JDI

OLED Frontier Forum’s 3rd Section Panel Discussion Summary

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The 3rd section of the 1st OLED Frontier Forum (Jan 28), OLED’s Future, held a panel discussion with government, industry, and academia experts discussing OLED industry development strategy, such as next generation technology development, convergent areas, and personnel training, and future forecast. OLEDNET summarized the answers that each expert gave to the questions of the panel chair (Professor Changhee Lee, Seoul National University).

 

Jun-hyung Souk (Professor, Sungkyunkwan University)

For SDC mobile, as the OLED depreciation is ending the OLED production cost is becoming almost the same as LCD. If OLED related experts stay within Korean industry as well as the technology, Korea can continue to lead for 4-5 years. In order to achieve the continued leadership, differentiation through flexible R2R has to be carried out, as well as the materials and encapsulation technology development.

 

 

Sung-Chul Kim (CTO, SDC)

As a-Si is an existing technology, there is no room for further advancement. Sharp’s difficulty in panel business is due to lack of technology research on the panel. Because one technology can only be used for approximately 7 months, diverse technology development is required.

 

 

In-byeong Kang (CTO, LGD)

Fast organizations cannot but win. Therefore, rapid change to OLED from LCD is needed. As difficult is the technology, cooperation between academia and industry is needed. Now is the time when this cooperation for next generation technology development is more in demand. LGD is putting in much effort for OLED profitability.

 

 

Sung-Jin Kim (Vice President, Toray Advanced Materials Korea)

Cooperation between materials and manufacturing equipment companies is important in solution process materials development. Particularly, how to control dry process is an important issue. Also, Kim expects the current solution process materials development to show tangible results in 3-5 years.

 

 

Junyeob Lee (Professor, Sungkyunkwan University)

Solution process is favorable for materials optimization. From the initial concentration on polymer materials, recently small molecule materials focused soluble materials development is being carried out, and how to implement common layer is an issue. Emitting layer is using the small molecule materials that are being used as evaporation materials. The difference is the higher cost as the solvent is used. Also, as there is an issue (formulation problem) when used in large area, solution is required.

 

 

Kyoung-Soo Kim (Vice President, Korea Display Industry Association)

Expert acquirement is a key issue. Through upgraded cooperation between industry and academia, and industries, cooperation between panel, manufacturing equipment, and materials has to progress into a positive cycle. Also the open platform regarding new OLED application is needed.

 

 

Young-Ho Park (PD, Korea Evaluation Institute of Industrial Technology)

Flexible display competitiveness acquirement is a big concern. Programs for challenging R&D, and high added value product/technology development, and R&D infra establishment (highly cost-effective R&D) have to be considered.

 

패널토론회

Sung-Chul Kim, Samsung Display’s CTO, What is Needed for OLED To Enter New Areas?

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Sung-Chul Kim, Samsung Display’s CTO, at the 1st OLED Frontier Forum (Jan 28) gave a presentation ‘AMOLED Technical Issue and Future’ and discussed OLED technological issues of the past and present.

 

Kim pointed out the fact that glass substrate is not always necessary for OLED as the most different factor compared to LCD, and emphasized flexible OLED where plastic substrate is used. Kim reported that flexible OLED issues include window’s durability and coating, touch panel’s electrode materials and flexibility, reduction of number of encapsulation layers and flexibility, and backplane’s low stress structure and OTFT application. He revealed that developing spherical stretchable display, which the user can zoom in, is also included in the product roadmap.

 

Regarding transparent/mirror display, Kim announced that this is the direction that OLED should head toward and added that layout design development suitable for different application areas is needed. Specifically, the transparent display should be developed to increase the transmittance area and decrease the TFT area, and the mirror display to optimize the ratio between the total reflection and half-reflection areas.

 

Additionally, in order to produce high resolution OLED, Kim mentioned that innovation in terms of pixel operation and backplane structure is needed. He emphasized compensation circuit and that whether high resolution display can be manufactured cheaply and using simple structure is the key.

 

Kim discussed wall display, IoT, educational display, etc. as the new applications which will become important in future. Particularly, mentioning the automotive display area, Kim explained that for OLED to enter these new areas, plastic materials suitable for each applications and technology that can correctly process this are required. In order for this type of research development to be carried out smoothly, Kim added that cooperation between the academia and industry is necessary.

 

삼성기사

In-byeong Kang, CTO of LG Display, Discusses the Past, Present, and Future of Large Area OLED Panel

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On January 28, Korea Display Industry Association organized the 1st OLED Frontier Forum in JW Marriott Hotel Seoul.

 

Under the title ‘OLED, Yesterday, Today, and Tomorrow’, the forum attendees could review Korean OLED research results of the past 20 odd years, and discussed regarding future OLED industry growth strategy.

 

LG Display’s CTO In-byeong Kang gave a presentation on Large Area OLED Status and Future and talked about the current status and forecast of large area OLED which is expected to become the key area of future display.

 

Since the mass production of first 55 inch OLED panel that utilized WRGB method and oxide TFT, 3 years went past. During those 3 years, Kang revealed that many innovations were carried out in terms of TFT device, compensation algorithm, OLED device, OLED materials, and processes.

 

First, the oxide TFT structure changed to coplanar method from etch stopper method, and for compensation wiring, the internal compensation was changed to external compensation. Also, he revealed that through much effort, the existing OLED device and materials were changed to new structure and high efficiency and high color gamut OLED emitting materials. Kang added that the uniformity, which becomes the most crucial point in large area OLED panel mass production, was greatly improved in Gen8 manufacturing equipment.

 

In 2013, there was only 1 LG Electronics’ OLED TV, 55 inch FHD, but recently 77 inch and 65 inch were added, and the resolution increased to UHD. Kang emphasized that although the 2013 product was priced at 11 million KRW with 100/400 nit of brightness but recent products have brightness of 150/450 nit at the reduced price of 4.2 million KRW.

 

LG Display is going through many changes recently. OLED business department began operation from last year. Large area OLED panel, which started with 8K monthly mass production at Gen8, is now being produced at 26K in full operation. Also, additional investment of 10 trillion KRW to large area panel has been decided, and new factory is being built in Paju. Kang told the audience that he heard many positive views on large area OLED at CES, and that there was a huge response regarding the 77 inch HDR video. Kang revealed confidence in the technology reporting that rather than replacing LCD, OLED could succeed as a totally different display.

 

Regarding the next 20 years, Kang forecast that the flat will move toward transparent and flexible, and OLED is the most suitable for this. He explained that the Korean government estimated this and is carrying out national project titled ‘≥60 inch UHD level transparent flexible display and applicable IT fused infotainment system development’ for the past 4 years. LG Display is responsible for this project’s overall consortium, and is planning to reveal UHD level 60 inch transparent flexible OLED panel in 2017 summer when the project is complete.

 

At the end of the presentation, Kang summarized 3 innovation factors for large area OLED. First, the substrate materials at Gen8 has to change to PI and transparent PI. Second, even for flexible substrate, the structure has to change to top emission from bottom emission, and lastly, Kang added that much more diverse applications have to be considered for flexible panel.

 

엘지기사

Leaders Who Created Korean OLED Industry

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On January 28, OLED Frontier Forum, ‘OLED, Yesterday, Today, and Tomorrow’ was held in Seoul, Korea. With approximately 250 attendees from the industry, academia, and government organizations, experts discussed scenes from the early days of OLED development, the current market and technology competition status, and future industry development issues.

 

President of UBI Research, Choong Hoon Yi, was the first speaker of the first section, and gave a presentation titled ‘Korean OLED Industry Creating Something from Nothing’, introducing figures from the initial stages of OLED development and now. In 1996, Yi, in charge of Strategy Technology Planning of Samsung Display Devices (now Samsung SDI), calculated OLED to be the most powerful display inheriting from LCD. Asserting the need for development, Yi led the OLED research development investment.

 

Discussing the most influential people within the 20 years of OLED industry, Yi first mentioned Samsung SDI’s vice chairman Soon-taek Kim, explaining that despite the IMF crisis Kim decided on AMOLED investment and laid the foundation for Samsung’s main role within the OLED industry. On top of this baiss, Ho Kyoon Chung (then Samsung SDI’s vice president) began active development of small size AMOLED, and Samsung Display’s vice president Sung-Chul Kim is responsible for Samsung’s OLED for mobile device of now. Yi also introduced Miwon Commercial’s CEO Kyu-Ha Chung (then Samsung Electronics executive director) as the key player who suggested vision for large area OLED through world’s first development of 40 inch WRGB OLED. Within LG Display, vice chairman Sang-beom Han was mentioned as the person responsible for OLED TV’s market release through difficulty decision of large area OLED investment, and CTO In-byeong Kang for technological advances as the person in charge of OLED development. For academia, Yi discussed Seoul National University’s Professor Changhee Lee as the first person in Korea who began white OLED development and contributed to OLED standardization. Professor Jin Jang of Kyung Hee University suggested oxide TFT’s commercialization prospect and mentored many people who contributed to Korean OLED industry. Yi, together with Sung-Chul Kim and Dr. Nam-Yang Lee (then LG Philips LCD director) established OLED sector within Korea Display Industry Association. During the talk, he introduced how this formed the inter cooperative structure with OLED industry companies and contributed to Korean OLED industry success on the basis of governmental support.

 

OLED Forum1

 

In the second section of the event, LG and Samsung’s CTOs presented on OLED industry’s key issues, and future innovative technology. The 2 companies both discussed current technology, products and projects that need to be solved in order to increase the competitiveness of OLED.

 

OLED Forum2

OLED Forum3

 

During the last section, the speakers panel discussion handled how to respond to China’s rapid growth. The speakers all agreed on the need for acquisition and hold on experts, corporation between industry and academy, and between companies, and new application areas.

 

OLED Forum4

LG Display to Focus on OLED Investment in 2016

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On January 27, LG Display held Q4 2015 earnings announcement, stating that the business profit recorded a surplus for 15 consecutive quarters, and annual profit of over 1 trillion KRW for 3 years.

 

LG Display’s Q4 2014 sales recorded 7,495,700 million KRW, a 5% increase from the previous quarter’s 7,158,200 million KRW and 10% decrease from 8,341,900 million KRW of the same period from the previous year. The business profit of 60,600 million KRW in Q4 is a significant decrease from previous quarter’s 332,900 million KRW and previous year’s 625,800 million KRW, a decrease of 82% and 90% respectively.

 

Sang-don Kim, LG Display’s CFO, mentioned that the business condition has been difficult due to weak demand and reduced panel prices as a result of China’s additional capa. establishment. Stating that it is hard to expect demand recovery as the economy continues to be uncertain in 2016, they suggested that the poor performances could continue.

 

Kim, in order to overcome the current situation, put up the keywords ‘choice and focus’. He reported that the investment could be flexible at times, but 50-60% of this year’s investment will be focused on OLED. He emphasized that choice and focus will be on areas with technological merits such as large area, M+, and AIT.

 

During the LG Electronics performance announcement (January 26), CFO Do Hyun Jung asserted world’s top premium image mentioning the OLED TV. LG Display also showed confidence in large area OLED technology. Sang-don Kim stated that OLED is a technology that exceeds existing LCD, and not only will it replace LCD TV but it is expanding the market and cemented its place as a premium product, jumping ahead of quantum dot TV. He added that whether in large size or small to mid-size, the technology difference of LCD with Chinese companies is 2-3 years, OLED is 5-6 years.