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[IMID 2015] LG Display Reveals Detailed OLED Plans

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During the keynote session of IMID 2015 (August 18 – 21), LG Display’s Sang Deog Yeo, the head of OLED division revealed LG Display’s intention to change the world with OLED together with everyone and strength in OLED industry expansion. Yeo explained that the most important factor in the success of large area OLED is strong conviction in OLED’s success and courage; he also announced further investment for OLED as future growth stimulus.

 

Yeo reported that TV’s first revolution was a change from black and white TV to color. The second revolution was the appearance of flat panel display and that the third revolution will be OLED. He explained that the key factors in TV panels are design and picture quality. He evaluated that these factors are advancing separately in other display while OLED is improving these issues together.

 

Explaining in more detail, Yeo reported that OLED has high design freedom as OLED structure is simple, a self-emitting light without BLU. Additionally, each pixel of OLED can operate independently and actualize true black, leading to differentiated picture quality.

 

In the beginning, LG Display struggled in applying WRGB technology and oxide TFT to OLED TV, which resulted in almost 0% of yield. Even within the company, there were opinions that oxide TFT application to Gen8 panel or larger will be almost impossible. However, the effort including introduction of external compensation circuit and coplanar structure, and compensation algorithm application to brightness and color brought LG Display’s current success of OLED TV mass production.

 

Yeo announced that much like how LG Display solved OLED TV’s technological problems of the past, they will improve the oxide TFT mobility to 50. He also revealed that LG Display is searching for a method of applying top-emission technology to mass production in order to improve transparent and flexible OLED technology, and researching light shutter technology and improved plastic substrate application technology.

 

LG Display recently announced their decision to invest approximately US$ 9,300 million centering around OLED. During the keynote session, Yeo reported that LG Display will increase the large area OLED panel’s production rate through investment, specifically from current 600 thousand units to 2 million units in 2017. He also announced that they will expand Gumi Gen6 line which will be used to increase production rate of small to medium-sized OLED panels and plastic OLED panels.

 

Although there has been speculation regarding this investment, through this keynote speech, it can be forecast the investment will be used in specific roadmap of large and small to medium-sized OLED. For the progress of OLED industry, which is growth stimulus of the future, Yeo emphasized the need for closer cooperation between materials, components, manufacturing equipment, and set companies, and laboratories and universities.

LG Display’s Sang Deog Yeo, IMID 2015

LG Display’s Sang Deog Yeo, IMID 2015

How Can Small and Medium-Sized OLED Panel Companies Survive?

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With the great increase of interest in flexible OLED from China and Taiwan’s small and medium-sized panel companies, diverse issues related to this are emerging.

 

Recent smartphone trend is moving from high resolution and specs toward diverse designs such as curved or bendable/foldable and flexible display that can differentiate applications. AMOLED flexible display is currently being applied to smartphone and smartwatch. However, only 2 companies, Samsung Display and LG Display, are supplying these high spec flexible AMOLED panel.

 

Small and medium-sized panel companies do not have the technology to mass produce high performance flexible AMOLED panel and cannot invest in mass production. For these reasons, Chinese and Taiwanese small and medium-sized companies are aiming for finding new applications where flexible PMOLED or low resolution flexible AMOLED can be applied and make mass production investment. Accordingly, set companies’ interest in flexible OLED applied application is also increasing.

 

Additionally, companies are in agreement that yield of flexible PMOLED that is applied to some smartbands does not meet demand. Taiwan’s wisechip and RiTdisplay, key PMOLED companies, are concentrating on developing flexible PMOLED and flexible OLED lighting. Taiwan’s AUO and Innolux, and China’s Visionox and EDO are also among those that are developing wearable flexible AMOLED.

 

Diverse application development where lower resolution flexible AMOLED, flexible PMOLED, or flexible OLED lighting, instead of expensive high-end smartphone and smartwatch, can be applied is essential. The outcome of this is forecast to greatly affect the growth of small and medium-sized OLED panel companies.

LGD Expands Market Through Active Support of OLED

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150724_LGD, OLED 적극적인 지원으로 시장 확대2

 

On July 23, LG Display announced its earnings results at LG Twin Towers in Yeouido, South Korea. During this event, LG Display revealed its decision to invest approximately US$ 900 million in Gen6 flexible OLED line in order to lead the flexible OLED market.

 

LG Display’s CFO, Kim Sang-don, explained that flexible OLED Gen6 line investment was decided at the board of directors meeting on July 22, and was made official on the morning of July 23. Kim added that the decision was reached so that LG Display can lead the OLED business in terms of technology and to occupy initial market in foldable and rollable technologies. He also commented the monthly capa. of the flexible OLED line will be 7.5K.

 

Regarding large area OLED panel, it was emphasized that this year’s panel production target remains to be 600,000 units and 1,500,000 units next year, same as the ones announced during the Q1 earnings results presentation. It was also revealed that 34K, approximately 9K higher than current capa., will be in operation in 2016. Addressing the concern of oversupply of next year’s 1,500,000 units while the OLD TV market is still small, LG Display suggested the solution of increasing the demand by active promotion from the second half of this year.

 

Despite the fall of mid to large size panels’ sales price, from the enlargement of sets and AIT technology applied sales performance, the business profit of approximately US$ 4,000 million was recorded. This is a 34% decrease compared to the previous quarter but a 199% increase from the same period in 2014. LG Display estimates that the sales will increase in the third quarter due to seasonal factors and panel’s enlargement trend.

 

[SID 2015] JDI’s Flexible White OLED Scheduler

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Japan Display (JDI) revealed product level of flexible OLED exceeding the demonstration standard of OLED panel exhibition. JDI has been carrying out white OLED panel development for several years, and had shown 5.2 inch flexible AMOLED panel in Display Innovation 2014.

5.2 inch flexible OLED panel revealed in SID 2015 is similar to last year’s flexible panel. It is 5 inch FHD (423ppi) with 0.05mm thickness and pixel structure formed by combining white OLED and color filter. LTPS TFT was used for backplane.

Flexible OLED produced by Samsung Display and LG Display has RGB structure. While the resolution is FHD, as it uses pentile type drive the actual resolution is about 320ppi. However, flexible OLED revealed by JDI has white OLED structure, which is structurally similar to WRGB OLED for OLED TV currently being produced by LG Display.JDI1 JDI2

LG Display, next is the plastic OLED!

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Supported by the success of WOLED production for OLED TVs, LG Display is ambitiously formulating the next project with the plastic OLED. The development of dual-edge plastic OLED was completed as an extension of the plastic OLED product already used in LG’s G Flex and G Watch, and the product for automobile dash board is under preparation.

Presenting the curved plastic OLED display for dash board and dual-edge plastic OLED at the press conference exhibition hall of CES 2015, LG Display demonstrated its diverse products portfolio employing plastic OLED.

150130_LG디스플레이, 다음은 plastic OLED다!

 

LG Display CEO Han Sang-beom mentioned at the press conference that the dual-edge plastic OLED panel to apply for diverse customers and smartphones is under discussion and the product for a dash board is under development in close collaboration with two automobile companies. However, he also said that it may require more time as the display for an automobile demands brighter light quality and the clients are expecting to use it from 2017.

Though the original plastic OLED produced by LG Electronics for G Flex was only HD level resolution incompatible with other displays for smartphones, now the FHD plastic OLED for the G Flex 2 which was announced at CES 2015 secured enough competitiveness in terms of resolution compared to the LCD and OLED panels manufactured by other rival companies.

“A decision for investment will be made soon!” said Mr. Han at the end of the press conference regarding the plastic OLED line investment.

The size of the early investment is estimated to be Gen6 15K and the major clients for the plastic OLED panel will be LG Electronics and Apple.

Chung-hoon Lee, Editor, editor@olednet.co.kr

LG Chem. announces new OLED lighting product milestones

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LG Chem announced today that it achieved two important milestones in the development of OLED lighting products with the start of manufacturing of the 320 x 320 mm OLED light panel, the world’s largest available in the market, and the completion of the research and development phase for a new plastic-based OLED light panel.

The 320x320mm OLED light panel is 0.88mm thick panel and has an efficiency of 60lm/W, CRI over 90, and has output levels of 800lm with a nominal input (8.5V 1,600mA). The panel’s output can reach 1,200lm which is similar to a common 60-75 Watt incandescent lamp. This is significant because it marks first time that OLEDs can be considered as an energy-efficient / human-friendly light source available for general purpose use.

With LG Chem having begun mass producing the 320x320mm panels in January, the panels can be ordered at $680USD per panel, with a lower negotiated price for bulk orders.

150128_LG 화학, 새로운 OLED 조명 제품 목표 발표1

 

LG Chem has also completed development of a truly flexible plastic-based OLED light panel and engineering samples are now available. LG Chem’s current bendable OLED panels (F6BA40, F6BA30) are thin-glass based that provides a limited bending radius of 75mm. The new flexible OLED panel has vastly increased the bending radius flexibility to 30mm because of the adoption of a plastic substrate for the panel, which also eliminates the danger of the panel shattering when excessive force is applied.

The main challenge of converting from a glass substrate to plastic was to maintain the performance levels of efficiency, luminance, and CRI. LG Chem has overcome this challenge by adopting its expertise in barrier and encapsulation technology.

The specifications of the LG Chem’s new plastic-based OLED light panel are 60lm/W efficiency, 75lm brightness, 3,000K in color temperature, and CRI over 85. Engineering samples are available at $250USD per panel. The mass production of the flexible panel is scheduled to begin in July 2015. The price will be adjusted accordingly once mass production starts.

150128_LG 화학, 새로운 OLED 조명 제품 목표 발표2150128_LG 화학, 새로운 OLED 조명 제품 목표 발표3

Feast of Plastic OLED

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LG Electronics unveiled its secret weapon, G Flex2 at CES2015. Produced with the plastic OLED from LG Display, the smart phone G Flex2 features relatively enhanced resolution from the HD level resolution to FHD (403ppi) though the display has reduced from 5.99-inch to 5.5-inch when compared to the existing G Flex released in 2013.

150123_Plastic OLED의 향연1 150123_Plastic OLED의 향연2 150123_Plastic OLED의 향연3

G Flex2 is the up to date curved smart phone equipped with the latest 64bit Octa-Core CPU and Snapdragon 810 processor from Qualcomm. The frontal curvature of 700R is also the same as in the G Flex, but the backside is 650R, increasing the sense of grip. For its 700R display, it provides much better sound quality by reducing the gap between the user’s face and the phone. With the self-healing back cover as in the G Flex, it just removes various scratches occurred in daily life. 

LG Electronics and Samsung Electronics sold the curved smart phones in 2013 at the same time. LG Electronics’ G Flex was the same panoramic design as now but Samsung Electronics competed by releasing a smartphone curved from left to right to emphasize a firm grip.

LG Display successfully developed world’s first flexible and also transparent OLED.

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LG Display succeeded in developing world’s first flexible and transparent OLED.
LG Display announced the technological development of world’s first 18-inch flexible OLED and transparent OLED of same size, disclosing at the ‘national project workshop for transparent flexible display development’ to be held from July 10 till July 11.
It is considered that LG Display secured the foundation technology for developing a large screen transparent flexible display through the simultaneous development of flexible and transparent OLED this time.
The flexible OLED that LG Display developed is 18-inch in size with HD resolution (1200 X 810) nearly 1 mega pixel quality, and this is the largest OLED in the world, realizing the radius of curvature of 30R. This means it can be rolled up to a radius of 3cm with no operational complications and implies that it is possible to implement a large panel rollable TV over 50 inches in the future.
In order to realize maximum radius of curvature even on 18-inch screen, LG Display used Polymide film of polymer materials on a substrate that TFT and organic matters are deposited, reducing the thickness and increasing flexibility drastically.
Furthermore, this concurrently developed transparent OLED is of same size and resolution as flexible OLED and the transparency is 30% or higher realized by self-developed transparent pixel design technology. It is a radical increase of transparency, given that transparency of existing LCD based transparent display is about 10% or so.
LG Display maximized the degree of completion by lowering the haze caused by circuit element and film down to 2%.
The transparent flexible display is a national project of the future industry-leading technology development program promoted by the Ministry of Trade, Industry & Energy and the Korea Evaluation Institute of Industrial Technology, and LG Display is the leading participants of total 36 organizations of industries, academies, and institutes, aiming to develop a large 60-inch transparent and flexible display by 2017.
According to In-Byung Kang, Senior Vice President and Head of the R&D Center at LG Display, “Pioneered OLED TV market, LG Display is leading future applied technology of OLED,” and “Though there still are many challenges to be resolved, we are confident in developing transparent flexible display of over the 60-inch screen UHD (Ultra High Definition) screen with transparency of 40% and a curvature radius of 100R by 2017.”

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<source : LG Display>

Merger between COMEDD and Fraunhofer FEP

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Fraunhofer FEP announced its merger with COMEDD, a research institute of Fraunhofer on July 5th.

The beginning of COMEDD was a research agency of Fraunhofer IPMS focusing on organic materials and electronic devices. It became an independent research institute of Fraunhofer in July, 2012. It is known that the merger with Fraunhofer FEP is to gain competitiveness for OLED by naming itself as COMEDD FEP.

Director of COMEDD FEP, Prof. Volker Kirchhoff, is hopping that the merger will contribute to development of barrier film for flexible organic components and the OLED based micro-display sector. It will focus on developing large area flexible sheet and the OLED lighting sheet by combining electron beam tech. and plasma tech. of Fraunhofer FEP and organic semiconductors tech. of COMEDD.