Development of the high efficiency solution processed fluorescent organic light-emitting device

141107_단국대 이준엽 교수

Korean researchers have developed the highly efficient florescent organic light-emitting device which enables to enhance the efficiency more than three times and is receiving much attention as the next generation display.

This research by the Prof. Jun Yeob Lee, the Ph.D. candidate/researcher Yong Joo Cho (the 1st author) and the Prof. Kyoung Soo Yook from the Department of Polymer Science and Engineering at Dankook University was supported by the Mid-career Researcher Program funded by the Ministry of Science, ICT and Future Planning and the National Research Foundation of Korea as well as the General Researcher Program funded by the Minister of Education and the National Research Foundation of Korea, and the research results were published on the Advanced Materials which is the international journal covering  materials science on the 15th October. (Paper Title: High Efficiency in a Solution-Processed Thermally Activated Delayed-Fluorescence Device Using a Delayed-Fluorescence Emitting Material with Improved Solubility)

Using the solution processing, it is expected to ease and simplify the process of producing the organic light-emitting device as the large area compared to the existing vacuum deposition plating.

However the problem is that when a device is produced through the solution processing using the existing fluorescent emitting material, the efficiency (external quantum efficiency) is only 5%. This is much less than the 20% which is the efficiency when produced by the vacuum deposition plating process.

The research team developed the high efficiency fluorescent organic light-emitting device, improved three times more than the previous fluorescent device for the solution processing. Compared to the existing structure, a solubility was increased by introducing the alkyl group as a substituent. Furthermore, the Donor-Acceptor Structure was employed to realize high efficiency by inducing delayed fluorescence phenomenon.

It is anticipated to advance the commercialization of a large scale organic light-emitting device for the enlargement of a future display.

The decrease of efficiency issue was resolved by making the surface film coating of a device smooth through the development of a new fluorescent light-emitting material which is soluble in organic solvents.

And introducing the strong Donor – Acceptor structure, it was possible to improve the efficiency as drawing delayed fluorescence phenomenon. The Donor – Acceptor structure refers to a monomer composed of an entity that donates electrons to another compound and that accepts electrons transferred from another compound.

Professor Lee revealed that “The following research will be continued to commercialize the solution processed fluorescent organic light-emitting device by developing a new material to improve not only the efficiency but also the lifespan of a device and a device structure appropriate for a solution processing.”

[Analyst Column] Samsung Display, shooting for the future of display


The DVCE (Display Valley Conference & Exhibition), supported by Samsung Display is held in every November in Asan, Chungcheongnam-do as one of the major events in the region which has established its position as a mecca of display industry. It is an international conference created by the active support from Samsung Display for the purpose of local development and industrial development of display business and it is the 10th year of DVCE in 2014.

In the first day of DVCE on the 11th, Hak-sun Kim, the vice president of Samsung Display gave a key note speech titled “Display Beyond Imagination”, suggesting the future directions for display through humanistic considerations.

Given that most of display related conferences or seminars are primarily of hardware or technology associated contents, this was the first occasion that the directions for the future display was proposed. Comparing the display with the history of art, Kim defined a new technology market to converge analog and digital. He mentioned the necessity to produce creative display by employing new functions in display as famous art masters have created innovative artworks by developing various techniques.

In particular, he has emphasized that it is critical to produce a human-friendly product as a human interface through fundamental understanding and reflection on the light and human eyes when developing a display. Kim proposed a vision for the future of the convergence product equipped with varied functions like lighting and eye, bio sensor, haptic sensor, etc. through the techniques employed by the artists like lighting and perspective, trompe I’oeil, texture, etc.

Kim expressed sincere regret for the decrease of display industry in Korea where new products are no longer produced, claiming the need for engineers who develop displays to converge and combine by means of humanistic consideration in order to promote display industry.

Yi Choong-hoon /Chief Analyst / UBI Research /

Samsung, to actively respond to the low and middle priced smartphone market

Samsung Electronics announced the performance presentation for 3Q held on the 30th of October. IM (mobile) division recorded KRW 24.580 trillion, a quarter-on-quarter decrease of 14% and the business profit was KRW 1.75 trillion, a quarter-on-quarter decrease of 60%.

The 3Q business profits of IM showed the largest drop compared to the previous quarter since 2012, and it was the first time falling under KRW 2 trillion. It is due to fierce growth of Chinese electronic companies and a month delayed announcement of Galaxy Note 4 than the previous model, having little influence on the performance of 3Q.

Robert Yi, chief of the firm’s investor relations team said, “We failed to quickly respond to the market flow of smartphones which is changing its focus towards price competition.” In view of that, Kim Hyun-joon, a senior executive at its mobile division, said “We will increase the profitability as actively response to the low and middle priced market” and the competitiveness will be reinforced as differentiating display and materials, and improving camera, AP system, etc.

141103_삼성, 스마트폰 중저가 시장 적극 대응

Samsung Electronics unveiled the Galaxy A series targeting the low and middle priced market, on the 31st, only a day after unveiling the strategy regarding the low and middle priced market. With full metal body design, ‘Galaxy A5’ and ‘Galaxy A3’ are the slimmest Galaxy smartphones to the thickness of 6.7mm and 6.9mm respectively. Furthermore, Galaxy A5 and A3 is equipped with the 5-inch and 4.5-inch correspondingly, and front camera of diverse selfie functions and the very first five million pixels, targeting young consumers who are the most frequent selfie mode users. The price range is expected to be about 400 – 500 million won, and it will begin to release in November at the selected countries including China.

There is much attention towards whether Samsung Electronics will bring about good results with the full metal bodied Galaxy A series at the heart of China’s enormous price competitiveness.

LG Electronics, Now it is the Age of OLED TV

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LG Electronics presented a variety of products from TV to smartphone and smart watch at the Korea Electronics Show held from 14th to 17th October. The most prominent products among others were the OLED TV and newly released G Watch R. With five 77-inch UHD curved OLED TVs exhibited in panoramic array, the entry way attracted much attention from the visitors and at the exit, there was the G Watch R presented with the round display which represents the internal display of G Watch R. The LG Electronics’ view on the OLED was evidently demonstrated at the booth specifically designed the entrance and exit with OLED applied products.

One difference that the LG Electronics revealed at the Korea Electronics Show is no other than the attitude regarding the LG OLED TV.

Though numerous OLED TVs were exhibited at the IFA 2014, Germany in September, LG Electronics had somewhat passive approach as putting the phrase “The Future of TV” under every explanation of the OLED TV. However, after a month later at the Korea Electronics Show, the change was apparent toward more active way by arranging the large phrase of “Now, it is OLED age for TV” on the upper area of the booth with the 77-inch UHD curved OLED TVs.

141021_LG전자, TV는 OLED시대2.jpg


There’s a lot to be done for LG Displays to expand the age of OLED TV. As LG Display marked on the photo above for itself, the curved UHD TV will be another task to be tackled. It is anticipated to see the LG Display’s next movement until the “The Age of OLED for TV” after crossing mountains on its way.

[Analyst Column]For OLED Panel Late Starters, Securing High-Resolution Mask is Crucial

The Chinese display companies like Visionox, Tianma, etc. are preparing the development and commercialization of OLED panel with BOE at the head. To keep up with the present leading company, Samsung Display, these second movers must be equipped with both product quality and reasonable price.

As the front runners of OLED panel, Samsung Display is maintaining the exclusive market for rigid type OLED which is made of a glass, and LG Display is producing the plastic (flexible) OLED panel using PI substrate for mobile devices.

The OLED panel is produced in QD resolution as a mobile device changes to adopt a high-resolution, but it is not a real resolution but uses a pentile method. For Samsung Display and LG Display are the two leading companies of the OLED industry, the supply chain is very firmly structured. So the relatively latecomers in this industry have difficulties in getting good materials and components from the suppliers who have intimate relationship with these two companies from the materials to equipment and components providers.

Furthermore, the established companies are managing and controlling the ecology of the industries to exclude the rival companies, preventing suppliers from providing products to the competing companies or late starters. Due to these strategies, the new comers are unable to secure sufficient resources for the development.

A typical component is a shadow mask which is critical for high-resolution. Known as a fine metal mask, this mask is an essential element to produce a high-resolution OLED of RGB structure and the shadow mask made of about a 40um thin plate to produce the high-resolution OLED which is more than 300 ppi but it is hard to find suppliers for the late comers.

BOE is seriously reviewing the matter of developing the OLED of WRGB structure to solve the shadow mask issue. The WRGB OLED does not require a fine metal mask as it uses the emitting materials in layers. The WRGB OLED creates the white light and realizes colors through the color filter.

Tianma is in the process of developing the slot type mask splitting the shadow mask.


<Tianma, divided mask slot type>

Yi Choong-hoon /Chief Analyst / UBI Research /

Korean Display Companies, need urgent restructuring!

As the sales of Korean display companies drop drastically, the business profits are under the serious situations.

In 2012 when Samsung Display was established, the sales was about 33 trillion won and 29.8 trillion won in 2013, reduced by 10%. And it is expected to be about 24 trillion won, decreased about 20% compared to the previous year. LG Display is undergoing the similar situation where the sales was 29.4 trillion won in 2012 and 27 trillion won in 2013, losing the amount of 2.4 trillion won. The prospected sales for 2014 is about 25~26 trillion won.

Samsung Display’s business profits recorded 3.2 trillion won in 2012 and 3 trillion won in 2013, but the profit of 2014 is not anticipated as it is only 140 billion won in the second quarter of the year. Meanwhile, the business profits of LG Display were 0.9 trillion won in 2012 and 1.2 trillion won in 2013, expecting 1.4 trillion won in 2014.

While the sales and business profits of Samsung Display are slumping, the LG Display is improving its business value as the business profit increases slightly despite the sales decrease.

But these companies are facing inevitable sales decrease due to the intense investments and panel cost reductions of Chinese display companies, and increase of the production costs, worsening sales conditions of Korean display companies. Moreover, it is even harder to secure competitiveness as the technology level of Chinese panel companies are getting closer to that of Korean companies.

The problem is the decrease in the business profit. In reality, Samsung Display maintains the 33,000 employees since 2012. Given that the sales has decreased by 30% from 33 trillion won to 24 trillion won, keeping the same number of employees implies chronic structure of restricting the improvement of business profit. In purely arithmetical terms, Samsung Display requires structural adjustment of about 10,000 employees. The situation is unfavorable with LG Display as well. LG Display has about 55,000 employees which is 20,000 more than Samsung Display. LG Display’s business profit for this year might be greater than that of Samsung Display but it is relatively in bad circumstances considering sales per individual.

There still is no element likely to appear in 2015 to enhance the sales and business profits more than 2014. The sales fall is expected as the price is continually decreasing without any additional investment, and there is a high probability of business profit drop. However, there is a chance to increase the sales and business profits if these companies secure a market for the expensive OLED panel.

For display companies, the only way to achieve business profits without restructuring is lowering the supply prices of the parts, materials, and equipment. The OLED material industry which is blossoming now is struck by the mortal blow of 50% decrease of OLED emitting materials and relevant materials compared to 2012. The price decrease range of materials is excessively severe compared to the price decrease of the panel. Some companies are reconsidering the business and the poor performances of those display companies are shaking the forward and backward linkages of the industries higher than the actual numerical value.

To save the entire Korean display industries, Samsung Display and LG Display must secure the sound financial structure through structural adjustments rather than requesting of cost reduction for the supplier unilaterally.

The collapses of Japanese companies resulted from retaining the employments in spite of sales aggravation must be taken as a lesson.

LG Chem., provide OLED lighting panel illuminate Tincan, the restaurant in London

LG Chem. continues its intense marketing activities for the OLED lighting. The OLED lighting panels were applied inside the Hanoak (traditional Korean house), remodeled with the IVAAIU City Planning last August, and the butterflied shaped lightings applying 240 OLED lighting panels were supplied to the caf? called Marley coffee in Itaewon. And the circular type OLED lighting panels were used to decorate Tincan, a newly opened pop-up restaurant in London in last September.


The OLED light used as the light source at Tincan was the Φ100 OLED Light panel (N6OA30) that the LG Chem. introduced early this year for the first time. The efficacy of the panel is 60lm/W, a high CRI is over 90, and the lifetime is 40,000 hours (LT70) at 3,000 cd/m2, with only 1mm in thickness. The Lamp was designed by the architectural design firm AL_A using 3D printing.


LG Chem. is leading the OLED lighting panel business most actively as making the announcement last September for the release of the OLED lighting panel in November which will be equivalent to a LED lighting with the efficacy of 100lm/W and the lifetime of 40,000, and it has secured various lighting companies like Acuity and Zumtobel as a client.


< LG Chem.’s OLED lighting panel installed at Tincan>

OLED TV, still the TV of the future?

Total eight companies announced the OLED TVs at the IFA 2014. The size ranged from 55-inch to 77-inch and six among those eight companies exhibited UHD resolution OLED TV.

What these eight companies are implying through exhibiting the OLED TV is that it is the Future TV. Revealing the three UHD OLED TVs using LG Display’s 65inch UHD panel, Panasonic set off that it is the Next-Generation TV Technology and the Chinese company Changhong presented 55-inch and 65-inch Curved OLED TVs in the Changhong @ Future Display zone.


For the First in World Innovation Technology Zone demonstrating the future of the company, Samsung showed OLED TV with the phrase ‘Curved OLED TV’, underlining the word ‘Curved’ not ‘OLED’ and this indicates the company’s focus in other direction,Curved LED TV.


As the leading company of the OLED TV market, LG outdid the OLED TV exhibition with total 11 products of OLED TV from FHD to UHD Curved, and variables in different sizes. But LG also shared that the OLED TV is ‘The Future of TV’. It is contrasted against that OLED TV took more than 50% of the entire booth at IFA 2014 and the active involvement implemented to take over the OLED TV market.

140912_OLED TV, 아직까지 미래의 TV인가

[Future TV, OLED TV in IFA2014]

Then what is the current TV for LG? Why the future of a TV should be the OLED TV? First of all, it is due to the pricewise. The LCD TV of the same size and resolution is sold for the half price and even the consumers recognize no distinctive differences for purchasing the LCD TV.


Majority of the companies exhibited the OLED TV have manufactured the product using panels provided by the LG Display which is in the course of making constant efforts to open a full-scale OLED TV market. And numerous companies in related business expect LG to open a market for OLED. It is anticipated to see how LG the different TV maker will form the OLED TV market in the future.

What is the optimal encapsulation technology for the Flexible AMOLED?

Currently mass-producing flexible AMOLED panels are taking PI substrate, backplane, and RGB deposition method, and the existing encapsulation technologies for A2 line of Samsung Display is TFE (thin film encapsulation) and hybrid encapsulation for LG Display.

But for the flexible AMOLED exclusive A3 line which is newly invested by the Samsung Display, advanced the orders not in the TFE but in the hybrid encapsulation method which is laminating the film after resin coating process on the passivation structure of inorganic layer and organic layer, similar to the method that the LG Display takes.

The reason for the change of encapsulation technology at the A3 of Samsung Display was analyzed in the “2014 Flexible OLED Report” issued by the UBI Research including the latest trends and issues such as the flexible AMOLED related issues and processes, market forecast of the flexible AMOLED panel and flexible OLED lighting, flexible AMOLED technologies comparison of Samsung Display and LG Display, etc.

According to this report, the flexible AMOLED panel market is forecasted to show a compound annual growth rate of about 60% through to 2020, reaching $ 17,600 million where the primary applications are expected to be for the flexible AMOLED panel of tablet pc.

140926_Flexible AMOLED용 encapsulation, 최적의 기술은

<Flexible AMOLED panel Market Forecast>

OLED for Smart Watch!

140912_Smart Watch는 OLED다

As Apple announces the Apple watch on the 9th (local time), the battle of a smart watch began for electronic companies including Samsung, LG, Apple, Sony, Motorola, and even ASUS. With the Samsung’s smart watch the Galaxy Gear, most of the products are released in the form similar to a square type display electric watch. In particular, when it comes to customer’s willingness to purchase a smart watch, the design is a critical element for it requires features for both electric device and fashion item at the same time.


Reflecting the comments that the design is rather crude, Samsung and LG adopted a new smart watch design. The Galaxy Gear of Samsung expanded the panel in 2-inch, acquiring visibility and adjusted to appropriately fit on a wrist. LG presented G Watch R with the round shape different from previous square types. The most recently unveiled Apple watch took the design of existing square form but highlighted a sense of softness as the surface curves toward the edges.


These all three products employed the flexible OLED which is thin and bendable, and enables different designs more than the glass type LCD as the cutting process is easily modifiable. Furthermore, the display qualities like the color resolution and power efficiency issues were already verified from the success of the Galaxy series which were equipped with the AMOLED panel.


The fact that Samsung, LG, and Apple chose to use the flexible OLED must be noted. From this detail, it is expected that there might be another trend in the OLED market as smart watches – though it is only three products for now- take the flexible OLED when the sales of AMOLED panel for mobiles are decreasing at present.

[IFA2014] Future of LG is OLED

140905_LG의 미래는 OLED_1

LG unveiled the smart watch LG G Watch R and 77-inch 4K OLED TV at the IFA.


Equipped with the 1.3-inch round display using the advantages of the plastic OLED, the LG G Watch R with the round plastic OLED (flexible OLED), distinguished itself from existing smart watches of a square screen resulting from the properties of display. Furthermore, its design approach has improved from the assumed notion of typical crude smart watch shape, presenting the all new circular display which is by no means inferior to conventional analog watches.


One of the critical issues regarding a smart watch is battery life. While an analog watch requires battery replacement once in a year or even 2-3 years, the smart watch needs to be charged at least once or twice a day minimum. So the screen turns off whenever it is not in use. LG enhanced the battery capacity from300mAh to 410mAh, emphasizing that it is a smart watch available all day by providing it with the Always On function that never turns off the screen to check time like an analog watch.


Unlike the Tizen, another smart watch for Galaxy Gear with AMOLED, it is installed with the Android Wear OS. With the voice control function of Google, it lets you search, message, and email.


The 4K OLED TV exhibited at the LG booth was total ten products with one 55-inch 4K, three 65-inch 4K, one variable 77-inch and six Curved OLED TV.

LG touted the OLED TV with three concepts titled Life like color, True black, and Self-lighting pixel. Providing lifelike and true to form experiences with videos magnifying the high contrast ratio, the 77inch 4K flexible OLED TV is the largest 4K OLED TV at present.


More than 50% of LG booth was comprised of the G watch S and OLED TV, demonstrating the scope of OLED business in the present and also the future of LG.

140905_LG의 미래는 OLED_2

Galaxy Note 4 with thoughtful consideration to unveil worldwide

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Samsung Unpacked Event Episode 2 was held in three countries of Belin, Beijing and New York simultaneously on September 3. With a high anticipation of the world, the Galaxy Note 4, Note Edge, the Gear S, and Gear VR were revealed.

Compared to the Galaxy Note 3, the Galaxy Note 4 has improved in its resolution, S Pen function, and camera and battery performances. The resolution has been enhanced from FHD to QHD and the resulting increase of battery power consumption issue was resolved through the advancement of battery performance and power consumption. Though there were not much to pay attention in terms of specifications, what stood out was the sense of careful consideration of users in the Galaxy Note 4’s.

One among those is the battery charging time. Most of the people spend a substantial amount of time using smartphones in daily life. Therefore, the battery charging time is as important as the battery capacity. And the Galaxy Note 4 has decreased the time for charging 50% from 55 to 30 minutes.

Another improvement was a camera software which is the most frequently used function of a smartphone. Assuming that the use of front camera is as common as the back one, the self-camera function was upgraded, featuring 3.7 megapixel resolution, the maximum aperture of F1.9 allowing vivid photographing, 120 degree self-camera function and a function of taking pictures by tapping the HR Sensor.

Samsung has been announced the Galaxy related accessories from the Galaxy S5. For this time with the Galaxy Note 4, the luxurious image was emphasized by releasing products like battery covers created in collaboration with the high-end brands such as Swalovski and Monblac.140904_[IFA2014] 삼성전자 갤럭시노트4 전세계 공개

140904_세심한 배려가 돋보이는 갤럭시노트4 전세계 공개_3


One more product is the Galaxy Note Edge, characterized with a display that curves over right side enabling the information check not only on the front display but also on the side screen. It is possible to see push notifications and launch applications even when the smartphone cover is closed. In addition, the entire front display can be used as a photographing screen and the side screen removes any distraction from any notifications while surfing the internet or watching videos.


Galaxy Note 4 will be on sale worldwide sequentially starting this October.


The future market response is expected to see how the Samsung’s meticulous concern for users presented in the Galaxy Note 4 will be delivered to the customers.

OLED TV cost saving, the alternative is co-planar structure

Current AMOLED panel market is mainly led by either Samsung Display or LG Display, mass producing the LTPS backplane for mobiles and Oxide backplane for TVs.


Though the AMOLED panel market for mobiles has established stable position in the business beyond LCD panel market, the market for TV is having difficulties in settling for its high price compared to the LCD/LED TV, requiring pressing technological development to lower the cost.


As a counterplan for this, the LG Display received a considerable attention at the SID 2014 by exhibiting 65-inch curved UHD OLED TV applying not the existing etch stopper layer (ESL) structure but the co-planar structure.


According to the “2014 AMOLED Backplane Technical Report” published by the UBI Research, it was analyzed that there is a difference in the investment expenses by about $ 80 million when making the additional investment in oxide TFT AMOLED line of co-planar for a-Si LCD line against the supplementary investment in oxide TFT AMOLED for LCD line. (For Gen 8) It was also suggested that the co-planar structure is appropriate for the oxide TFT structure which can make the best use of the backplane and color filter equipment of the previous a-Si LCD line as the mask can be used under 6 layers.


In addition, the core issue of the AMOLED industry which is a technological concern over the flexible LTPS applied to the flexible display was examined along with the latest technology trend analysis of LTPS, oxide, and organic TFT in the “2014 AMOLED Backplane Technical Report”.


LG Electronics to release the world’s first ‘Ultra OLED TV’

LG Electronics unveiled the Ultra OLED TV on August 25 at the Conrad Hotel in Yoido where Ha Hyun-hwoi, president of Home Entertainment (HE) and Choi Sang-gyu, head of Korea sales and marketing at LG Electronics were in attendance.


□ President Ha Hyun-hwoi announced a shift in generation

“The Ultra OLED TV is an epitome of TV technology combining the best display and resolution,” the president Ha Hyun-Hwoi said, adding that “The future OLED TV market will be expanded, leading the display technologies.” Regarding the curved surface of OLED competitive with LCD, he explained “The priority is given to the resolution of a TV” and “There is no distortion of color or change of picture quality in the curved surface of the OLED TV”. Saying that “OLED TV will play a role of a game changer replacing the LCD within 2-3 years with various merits like color reproduction rate, contrast range, viewing angle, etc.” he also emphasized “The next generation of TV market trend will led by the state-of-the-art premium Ultra OLED TV in existence”.


□ Concentration of hardware competitiveness and platform capacity of LG

The LG Ultra OLED TV provides the most lifelike graphic picture quality with ultra HD resolution of its unique WRGB technology and 33 million sub-pixels. For the characteristics of the self-lighting pixels, the indefinite contrast rate is allowed, reproducing perfect black color. With rapid response speed, it also reproduces natural image without any afterimages. This product is also equipped with a sound quality which is appropriate for the flawless picture quality. Designed with the world-renowned professional audio company Harman, it delivers balanced wide-range sound quality of exhilarating effects with multi-channel ultra surround technology. In addition, the sense of immersion and the aesthetic effect were maximized for the innovative design approaches of ultra slim curved screen and leaf-shaped stand. Due to its own attribute, there is no distortion or change of color in OLED TV watching from every direction. It can be installed on the wall depending on the surrounding environment and preferences. Loaded with innovative web OS, this product offers significant values more than the existing smart TV. The web-based smart TV is recognized as a new strong point of TV platform of reorganizing the smart TV market by the ‘simple usability’ through ▲simple transition ▲simple search ▲simple connection which is the essence of a TV.


□ Establishment of next generation TV market pioneering base

LG Electronics plans to lead the next generation TV market by securing medium-and long-term growth momentum through OLED TV. And through the continuous innovation in manufacturing technology, R&D, and investment on marketing, the OLED TV era is to be advanced and the OLED TV will be the new growth engine for display industries through the expansion of ecosystem. Established the OLED TV manufacturing line in major cities over the world from the last year, LG Electronics will release the Ultra OLED TV at the beginning next month in North America, Europe, etc. sequentially.


□ Presales to begin on 26th at LG Electronics distributors nationwide

LG Electronics will take pre-orders for 65-inch Ultra OLED TV (Model: 65EC9700) from the 26th to 29th of next month at the LG Electronics distributors nationwide. The 65-inch Ultra OLED TV will be sold at a price of 12,000,000 won through the cashback benefit. The delivery starts from the end of September. And LG will consolidate the lineup of the Ultra OLED TV as releasing 77-inch (Model: 77EG9700) model in the fourth quarter.


Samsung Electronics Released the ‘Galaxy Alpha’ Smartphone Equipped with Metal Frame

140818_삼성전자, 메탈프레임을 적용한 스마트폰 ‘갤럭시 알파’ 출시

The premium smartphone ‘Galaxy Alpha’ released on 13th of this month is the first to feature the specialized design approach with a metal frame.

According to the Samsung’s own website, the ‘Galaxy Alpha’ unveiled its new design approach applying metal frame material for solid finish.

The grip is emphasized measuring at just 6.7mm thick and the weight of 115g, and it comes with 4.7-inch HD super AMOLED (1280X720) display.

Samsung says that the Galaxy Alpha takes the Exynos 5430 and the model number is Exynos Modem 303 which is the Application Processor (AP) that Samsung developed independently with the world’s first 20nm manufacturing process and as a result the power consumption reduces to 25% compared to its predecessor based on a 28 nm process.

Also, the Galaxy Alpha has connectivity with the Samsung wearables such as Gear 2, Gear Fit, etc. and includes the latest features like ultra-power saving mode, finger print scanner, S-health, etc.

“Samsung always tries to provide consumers with a new product that they want,” said JK Shin, CEO and Head of IT & Mobile Communication at Samsung Electronics, and added “The Galaxy Alpha is a distinguishing device of combining beautiful and functional design with a unique user experience of Galaxy smartphone.”

The Galaxy Alpha will be available at the beginning of September in over 150 countries sequentially.

AMOLED manufacturing equipment market, expected to be about 36 trillion won from 2015 to 2020

According to an equipment report, “2014 AMOLED manufacturing Equipment Technology Analysis and Market Forecast (2015~2020),” published by a market research firm, UBI Research, the AMOLED manufacturing equipment market size will be about 36 trillion won from 2015 to 2020. Stepper appears to be the largest sector in the equipment market by forming about 10 trillion won and taking up about 30 % of market share. Evaporator will take 17% with about 6 trillion.


It is forecasted that Chinese makers will start to invest in AMOLED business. Predicted market size is about 6 trillion won in 2015. In 2017, full-scale investment on the AMOLED panel line for TV will be started. About 9.5 trillion won market will be formed and become the largest market size by 2018.


From 2015 to 2020, the market share of backplane manufacturing, encapsulation and OLED manufacturing equipment will be 69%, 17% and 14%, respectively, in the overall AMOLED equipment market.


In the overall AMOLED equipment market by country, Korean market size is expected to grow to about 20 trillion won taking up 55% market share for six years and it is analyzed that Korea will continuously lead the AMOLED industry.


<2015~2020, AMOLED manufacturing equipment market>

KITECH, Developed the world’s first refining technology for organic light-emitting material using ILs for OLED TV

Dr. Taewon Kim’s team of photovoltaic energy convergence research group of Korean Institute of Industrial Technology (KITECH, President Yong-Soo Lee) developed an original technology to refine organic light-emitting materials in bulk for fine OLED TV at low price.

Dr. Kim’s team established a new concept for the refining technology by using Ionic Liquids (ILs), and it can solve issues of high cost·low yield rate arisen in production of the organic light-emitting material for the OLED TV.

Ionic Liquids are liquids that only consist of positive and negative ions at room temperature and stays in liquid form at high vacuum (~100℃) with almost no volatility. Recently, ILs became a future clean solvent in green chemistry field with a strength of good solubility for high molecular substance and a feature of metal salts.

Until now, ‘sublimation refining method’ has been used to get high purify organic light-emitting material by utilizing the difference of sublimation points between vaporization and solidification of a material. However, cons of this method are low yield rate and very high production cost because it is impossible to realize complete auto and continuous process.

To address this issue, Dr. Kim’s team started developing the large scale refining technology for the organic light-emitting materials at low cost since 2011 and applied for original patent in December, 2012. Their effort on verifying the possibility of the technology’s application produced this result in 19 months.

The key of the result is the application of the high purity refining technology on the organic light-emitting material for the OLED TV by focusing on the non-volatile feature of ILs at high vacuum·high temperature.

This technology uses a principle of separating impurities in the order of vaporizing the organic light-emitting material in a vacuum chamber; dissolving it in a liquid filter of ionic liquid; and recrystallizing supersaturated material in the liquid. It enables to get 99.95% of high purity organic light-emitting material through one refining process.

It is a completely new concept of large scale refining method based on the non-volatility characteristic of ionic liquid at high vacuum·high temperature.

The team is credited with the success of new technology development which can overcome the cons of the existing sublimation refining method including refinery yield rate, automation and continuous process of equipment, and efficiency of mass production. It is also expected to bring a huge cost reduction effect by recycling; collect and reprocess during refinery process, of the expensive but non-volatile ionic liquid.

According to “2014 OLED Emitting Material Annual Report Market Forecast (~2020)” by a professional OLED market research firm, UBI Research, the OLED emitting material market is expected to grow to 1.3 trillion won in 2017 from 2014 estimation of 543 billion won. Forecasted annual growth rate is over 30% and experts see that the growth will be much larger if large size display market including the AMOLED TV expends in full-scale.

Dr. Taewon Kim, said, “this technology increased the yield rate and decreased the production cost by more than 50%. And an ultimate goal is to reduce the current price by one tenth” and “technology development is in progress with companies.” He also said, “the success is a game changer with enormous potential to turn the OLED TV market-to-explosively grow” and “based on the low-cost and large scale refining original technology, domestic businesses will largely contribute to preoccupy the global market of forward-backward industry regarding the OLED TV.”

The team currently applied 16 cases for patent with related process․equipment technology in and out of the country and plans active technology transfer to related businesses.

<Comparison of refining methods for organic light emitting materials Source: KITECH>

Launching of Gionee’s ultra-thin AMOLED smart phone (5mm) is imminent

Ctimes, a Chinese medium, reported that a Chinese smart phone maker, Gionee, will introduce an ultra-thin smart phone modeled GN9005.

GN9005 used AMOLED panel and is 0.55mm thinner than 5.55mm of the previous model, which was introduced as Elife S5.5 last February.

It is noticeable that 4.8” HD AMOLED panel is applied which is smaller than the 5” FHD Super AMOLED applied to the previous Elife S5.5. In general, the AMOLED panels produced by Samsung Display are named super AMOLED. However, no particular name for the AMOLED panel applied to GN9005 and its low performance indicate that the panel is highly likely to be supplied by AUO.

It is known that AUO has started supply to a Chinese maker from last June but any specifics on the maker has not been revealed.

A Chinese smart phone maker, BBK, drew attention with 5.75mm VIVO X3 after the launch of 6.18mm Ascend P6 by Huawei last year. Followed by launching, Gionee introduced the 5.55mm Elife S5.5 in February and will launch 5mm GN9005 and that fierce competition will begin soon in the ultra-thin smartphone market in China.140722_GioneeElifeS5.5vsGN9005

<Gionee’s ultra-thin smart phone comparison>



<Gionee’s the world’s thinnest smartphone, ‘5mm’ GN9005, Source : TENAA>

Taiwan grows OLED lighting industry

According to CTIMES, a Taiwanese professional electronics industry medium, the OLED Lighting Commercialization Alliance (OLCA) was recently established for the development of the OLED lighting industry in Taiwan. Founding members of the OLCA are the Industrial Technology Research Institute (ITRI) and Taiwan Lighting Fixture Export Association (TLFEA), and various companies from materials to manufacturing are members of the OLCA. It is consisted of five committees such as lamps, lighting design, materials, fixtures and optical engines.

Chairman of TLFEA, Steve Lin said, “the OLED is ideal for proximity lightings and it is already installed in luxury apartment in Taiwan. Due to the expensive price of the OLED compare to the LED, it is not in mass-production, but it will become a standard lighting in all households within 3 years.” Vice President of ITRI, C.T.Liu, also forecasted the OLED playing an important role in IoT (Internet of Thing) sector and emphasized that Taiwan will be the center of the OLED lighting industry.

“2014 OLED lighting Annual Report” by UBI research forecasted that the OLED lighting market will be about US M$ 4,700 by 2020.


Sony unveils Head Mounted Display (HMD) for medical care

Sony displayed a system, which enables you to check endoscope video through Head Mounted Display (HMD) at International Modern Hospital Show 2014 held from July 16th to 18th, 2014. For the existing endoscopy surgery, posture restriction exists because the procedure requires external monitoring. With Sony’s new product, surgery, however, can be performed without the posture restriction.

This specialized product for medical purpose weights only about 490g which enables an operator to perform in a standing position. It doesn’t fully cover eyes of an operator by changing the shape of wearable belt so that the operator can visually check surgery device by lowering the eyes without taking it off.

This medical HMD is installed with Sony’s OLED display and shows images on the OLED display individually thus crosstalk is not that large and doesn’t induce dizziness during its use.

 Sony consulted with doctors to develop this system and said that demand for this competitive system will increase as 3D endoscope increases.

140717_sonyHMD 140717_SonyHMDin

<Sony’s Head Mounted Display(left), Picture of wearing HMD(right), Source : Monoist>

UBI Research, Hosting International OLED Workshop

An event will be held to exchange information with experts from the world on OLED, which suggests new solutions lighting market and brings positive changes to a staggering display market with introduction of a flexible smartphone and a curved TV.

On 12 th, UBI Research, a market research and consulting firm specialized in the OLED, announced that it will host ‘the 2nd Annual Korea OLED Workshop’ at COEX conference room in Samsung-dong on June 24th.

It is known that the world’s top OLED experts have been invited to cover information valuable to the industry to the upcoming event. Also, commercialization of flexible display, technological roadmap of WRGB OLED TV, and opportunities and challenges of the OLED display and lighting technology will be addressed. Especially technology and opportunity of Chinese OLED display will be covered.

An official of UBI Research said, “this workshop will be a place to check the roles and competitiveness of Korean, Chinese, Japanese and Tawnies companies in the next OLED lighting and flexible areas.”

For more information on the OLED Workshop, where researchers and executives of the OLED industry participate from around the world, refer to and or contact +82-2-577-4391.



Oculus Rift’s DK2 shipment just begins

Oculus, an American VR business, began shipment of the 2nd generation product, DK2.

According to OLED info, pre-order of DK2, the 2G product of Oculus, began in March, 2013 and 45,000 units were ordered by June, 2014. Ten thousand out of 45,000 units has been shipped on July 1st and the remaining will be shipped in the middle of August.

Oculus used LCD display for the first prototype but OLED display was used for the new product on the market. A video clip uploaded on Oculus’ homepage ( explicitly shows why Oculus used the OLED rather the LCD for faster response speed. Also replacing the LCD with the OLED greatly reduced motion sickness due to 3D while adding a positional tracking feature by mapping you movements with a camera and infrared light.


Merger between COMEDD and Fraunhofer FEP

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.

LG Electronics’ 77” Curved OLED TV for£20,000

LG Electronics’ 77” UHD curved OLED TV displayed at CES 2014 attracted attention of many foreign visitors. According to a Chinese medium, Shanghai Hotline, LG Electronics (LGE) officially launched the 77” UHD curved OLED TV, for £20,000 (about 34.6 million Kwon) in the British market. Official from LGE says, however, we are just planning to sales 77” UHD curved OLED TV.

With 4K UHD resolution (3840×2160), the 77” OLED TV offers a high picture quality, providing close to nature images, and comfortable viewing experience. Its unique design of curved screen and ellipse shape stand also allows you to enjoy high-contrast colorful pictures from any angle. This 77” UHD OLED TV won ‘Best of Innovations” award at CES 2014, and moves 7.5cm to bend so it moves 8cm to bend from flat and its angle is also adjustable.

LGE plans to launch 65” UHD curved OLED TV for £6,000 (about 10.3 million Kwon) with the same features as the 77” TV in this October.140704_LGCES201477inchamoled


<LG Electronics’ 77” UHD flexible OLED TV at CES 2014>

Samsung, introducing ‘Galaxy S5 mini’ targeting the world market

Samsung Electronics announced Galaxy S5 mini, a new Galaxy series. Its design is similar to the previous model but not the specifications.

Compare it with the previous model, its panel is a 4.5” HD AMOLED which is smaller than the 5.1” FHD AMOLED panel, and lighter by about 25g weighting 120g. Main specifications include quad core 1.4GHz CPU, LTE, 1.5GB memory, 16GB storage, Android 4.4 and 8 mega pixel camera. Galaxy S5 mini has features are waterproof, dustproof, finger scanner and ultra-power saving mode like Galaxy S5.

The galaxy S5 mini colored as the Galaxy S5 is planned to hit the global market after launching it in Russian market in early July.

Samsung Electronics has been continuously introducing new models from the Galaxy S3 to S5 including an entry-level model, mini.140703_GalaxyS5mini

<Galaxy S5 mini, similar design to Galaxy S5>



<Comparison of Galaxy mini series>

Imminent release of the world’s first hybrid smart watch, TalkBand, in UK

TalkBand, a band type wearable device released by Hauwei at MWC 2014 in the last February, is introduced on Amazon, a large online retailer.

One of the TalkBand’s strength is that it can be transformed into a Bluetooth earphone and that gave a title of the world’s first hybrid smart watch to the TalkBand. 1.4” Curved PMOLED by Futaba is applied to the TalkBand. It is expected to draw more customers’ attention by adding a health care feature (tracking calorie intake, sleep pattern and fitness).

According to Amazon UK, TalkBand will be available on June 30th for $99.9 (about 173,000 WON).

140618_Hauwei’s TalkBand MWC 2014

<Hauwei’s TalkBand, MWC 2014>

DOE, Announcing New OLED lighting Project

The U.S. Department of Energy (DOE) announced its selection of nine (9) solid-state lighting (SSL) R&D projects. Four out nine projects are related to OLED lighting and selected companies/universities to run the projects are OLED Works, Pixelligent Technologies, Princeton University, and University of California. The project funding will be over $13.7 million (DOE funding, $10.5 million) and funding for each project was not revealed. It is expected that these one-to two-year projects will accelerate cost reduction of SSL technology and improvement of quality and performance.

Details of the OLED lighting projects are as follows.

140617_DOE, OLED lighting 신규 project 발표

<DOE’s New OLED lighting Projects, Source : DOE>

‘Galaxy Tap S’ is finally unveiled. Targeting the market with differentiated AMOLED picture quality

140616_galaxy tab S

<Galaxy tab S, source ; Samsung Elec.>

Samsung Electronics (SSE) unveiled ‘Galaxy Tap S,’ which is the strategic premium tablet PC of SSE, at an event of ‘Galaxy Premiere 2014’ held in New York, U.S.A on 12th. Excellent color sensitivity of the ‘Galaxy Tap S’ panel was emphasized on the previously introduced teaser trailer with a copy of ‘Tab/Tap Into Color’ by applying AMOLED panel. Good color reproduction, high contrast and fast response speed as well as differentiated picture quality from the existing LCD panel are the strengths to be used to target the market.

The Galaxy Tap S is available in 6.6mm thick two models; 8.4” and 10.5” with WQXGA 2560×1600. It is expected that M6 material upgraded from materials used in the previous Galaxy models will be used.

Estimated price for the Galaxy Tap S is about 400,000 to 500,000 KWON and it will be officially released in July.



Apple’s iWatch with flexible AMOLED will be on the market in October

Apple Inc. plans to release a new product, Smart Watch (iWatch) in October. According to Nihon Geizai Shimnun, iOS 8 combined iWatch will be on the market in this October and 3 to 5 million iWatches will be produced monthly. An IT specialized media,, also reported that ‘tentatively, Apple Inc. will host a special event in October and unveil a wearable device.’

Specifications of Apple’s iWatch are unknown though 1.3~1.5” flexible OLED display is expected to be used. It is forecasted that LG Display will supply the flexible AMOLED panel for the iWatch and mass-produce about 2 million displays from this July to September.

As Mark Parker, the formal CEO of Nike once mentioned that ‘Apple Inc. and Nike will jointly introduce a wearable product,’ the focus of the iWatch will be on health and a partnership between Nike and Apple Inc. is expected.

As of now, it is known that Apple Inc. is testing each of 1.4”, 1.5” and 1.6” models. As prediction says, the iWatch will be available in different sizes by gender; males and females and be about $300.

140612_Apple사의 product launch schedule forecast in 2014 Source Know Your Mobile

<Apple’s product launch schedule forecast in 2014, Source : Know Your Mobile>

140612_iWatch의 concept과 기능, Source  Know Your Mobile

<Concept and functions of iWatch, Source : Know Your Mobile>

OLED lighting, replacing LED is in the not too distant future

At SID2014, it was proved that OLED lighting has competitiveness in terms of efficiency and can compete with LED for the general lighting.

Konica Minolta developed 131lm/W OLED lighting panel last March. It also released an OLED lighting panel with efficacy of 139lm/W at the SID 2014 and drew more attention. Panasonic also presented on OLED, and drew more attention unveiling a prototype in Author interview.

Considering that the efficacy of currently commercialized LED lighting is about 80~130lm/W, it is analyzed that the fruitful result at the SID 2014 showed the potential of the OLED lighting becoming the general lighting instead of the LED lighting.

The most concerned issues of the OLED lighting are lifetime and cost. For the general lighting, 40,000hr, which the OLED panel makers target, is estimated enough considering replace period of the lighting, but the issue is the cost. Compared to the LED, the OLED lighting is expensive and currently forms a high-end lighting market. However, it is inevitable to down the cost for entering the general lighting market. Although LG Chem. announced a price reduction to 200$/Klm from 600$/Klm, investment of the OLED lighting makers in mass-production is vital to reform the general lighting market with the OLED lighting.

The OLED lighting panel has reached the level equal to the LED lighting. Now is the time that the OLED lighting panel companies make a turning point and can leap again by investing as they did with display.

did with display.

140611_Performance report of Konica Minolta’s 139lmW OLED lighting panel SID2014 <Performance report of Konica Minolta’s 139lm/W OLED lighting panel, SID2014>

140611_Panasonic’s 133 lmW OLED lighting panel SID2014

<Panasonic’s 133 lm/W OLED lighting panel, SID2014>


후지 필름(Fujifilm), UDC에 OLED 특허 매각

후지 필름은 Universal Display(UDC)에 OLED 관련 특허 약 1200건과 application을 1억 5백만달러(약 1200억원)에 매각한다고 발표했다.

후지 필름은 10년이상 OLED 관련 개발을 진행해왔으며, OLED 개발을 위한 UDC와 전략적 협약을 위해 OLED 관련 특허 매각을 결정했다고 전했다. 후지필름은 UDC의 공급사를 중심으로 전세계 OLED 제작사에 barrier 필름, 전도성 필름, flexible 기판과 같은 재료의 공급을 늘려갈 예정이다.

Souce: 후지필름, UDC

코니카미놀타 OLED 제작 가능한 잉크젯 헤드 개발

Konica Minolta IJ Technologies, Inc.(코니카미놀타)는 1 피코리터 드롭 사이즈가 인쇄가능한 OLED 제작가능한 잉크젯 헤드”KM128SNG-MB”를 개발했다고 발표했다.
잉크젯프린트헤드 “KM128SNG-MB”는 코니카미놀타의 실리콘 MEMS 기술을 이용해 제작한 첫 제품이며, 올해 봄부터 판매를 시작할 것으로 예상된다.


코니카미놀타의 KM128SNG-MB

새로 개발된 잉크젯헤드 KM128SNG-MB는 반도체 공정 기술을 사용한 실리콘 MEMS 기술을 이용해 제작한 차세대 잉크젯 프린트헤드이다. MEMS 기술을 통해 코니카 미놀타는 마이크로 드롭 사이즈의 배출이 가능한 고정밀 프린트 헤드 구조(인쇄폭38mm, 128노즐) 개발에 성공했다. 잉크 흐름 통로 디자인과 고 정밀 조립 공정에 관한 자사 고유기술은 매우 작은 드롭사이즈의 (레이아웃)을 달성했다. 또한 새로운 잉크젯 헤드는 산업용 기기용의 다양한 잉크에 내구성이 높으며, 낮은 점도의 잉크 사용에도 적합하다. MEMS 기술을 이용함으로써 노즐을 통합할 수 있었으며, 이는 컴팩트 잉크젯 프린트헤드를 제작할 수 있게 했다. 새로이 개발된 잉크젯 프린트헤드는 OLED 디스플레이 패터닝, OLED 조명 thin layer 코팅, 스마트폰과 같은 정확도가 요구되는 디스플레이 제조 기술에 이용될 것으로 기대된다.

차세대 플렉서블 디스플레이를 포함한 인쇄전자 시장은 2020년 약 2조엔 가량까지 성장할 것으로 예상되며(Konica Minolta 연구결과), 이 신제품이 인쇄전자 시장에 사용될 것으로 기대된다. 코니카 미놀타는 2011년 설립된 Japan Advanced Printed Electronics Technology Research Association (JAPERA)의 창립 멤버이다. 이 혁신적인 잉크젯 기술을 이용해 코니카 미놀타는 차세대 인쇄 전자 기술의 연구 개발해 기여하고 있다.

주요 특징

–       반도체 공정에 사용되는 실리콘 MEMS 기술 이용

–       1 피코리터 drop 사이즈의 인쇄 전자 기기를 위한 첫 번째 프린트헤드

–       고정밀 프린트 헤드 구조 : 38mm 인쇄폭,  한 줄에 128개의 노즐 설치

–       한 개의 노즐 단위로 정확도 드라이브 컨트롤

–       산업기기용 낮은 점도의 잉크 최적화와 높은 잉크 저항성

–       100nm 수준의 균일한 박막 코팅

–       OLED 디스플레이와 같은 디스플레이 제조 기술용으로 사용가능





주요 Application


OLED 디스플레이 패터닝, OLED 조명 박막 코닝, 고 정밀함을 요하는 새로운 제조기술, 스마트폰과 같은 고부가가치의 디스플레이.
[코니카미놀타 홈페이지]