July 2017 | OLEDNET

OLED Encapsulation, TFE is the Top Trend

July 28, 2017/in /by olednet

Expected application of TFE to all edge type and full screen use flexible OLED
PECVD manufacturing equipment, 62% of total encapsulation manufacturing equipment market

According to 2017 OLED Encapsulation Annual Report published by UBI Research, of OLED encapsulation technology, TFE (thin film encapsulation) will be applied to approximately 70% of total OLED panel in 2021, and become the key encapsulation technology.

OLED display trend is heading toward minimizing bezel for full screen actualization from edge type, and flexible OLED is being considered as the most optimal display for full screen. As such, Chinese panel companies, as well as Samsung Display and LG Display, are concentrating on flexible OLED mass production line investment rather than rigid.

Flexible OLED must be thin and bendable; glass using frit encapsulation Is not suitable and TFE (thin film encapsulation) or hybrid encapsulation must be applied. TFE is a structure that is formed via laminating thin inorganic and organic materials. In the early stages of development, it had 11 layers of complex organic and inorganic material deposition with low yield. However, it now has been reduced to 3 layers and greatly improved productivity, yield, and cost and it is being applied to most of flexible OLED.

Hybrid encapsulation, which uses barrier film, is being applied to some flexible OLED. However, due to the high cost of barrier film and relatively thick thickness, recent investment is focused on TFE application.

According to UBI Research analyst Jang Hyunjun, TFE encapsulation is expected to continue to be applied to edge type and full screen type flexible OLED panel, and related manufacturing equipment and material market will carry on their growth.

The report explains that TFE’s key manufacturing equipment are inorganic material forming PECVD and organic material forming ink-jet printer. In particular, PECVD is used in inorganic material film formation of hybrid encapsulation as well as TFE. Therefore, PECVD market is estimated to record US$ 6,820 million in 2017-2021, and occupy approximately 62% of the total encapsulation manufacturing equipment market.

The report includes encapsulation related key manufacturing equipment and material market in addition to encapsulation development history and trend, and key panel companies’ trend.

LG Electronics, “Sales of the Premium TV in 2017 would hold 60%”

July 27, 2017/in /by olednet

LG Electronics spoke that “The portion of premium TVs in total TV sales will be increased from about 40% in 2016 to around 50% in first half of 2017 and up to 60% in the end of this year.” at the conference call in Q2 2017, which was held on 27th.

The performance in Q2 for HE area of LG Electronics showed 4 trillion and 234.9 billion won in sales, and 343 billion won in operating profit. The QOQ on sales was declined to 2.1%, and the demands of the global TV market are continuously reducing, but the sales of the same quarter in last year showed 1.9% growth through the sales expansion of the OLED premium TVs.

Jin-ho, Ha, the HE director of LG Electronics said that “The Q2 performance was slightly decreased in QOQ and same quarter in last year due to the panel cost increase and marketing promotion for the new product launching, but we sustained healthy profit structures through the expansion of the premium TV sales and the improvement of cost structures consistently.” And also expected, “There are concerns on the slowdown in growth of worldwide TV market for the interest rate hikes and the oil price decrease, nevertheless, the premium TV market will steadily grow according to the demand increase on OLED TV and UHD TV.”

Subsequently, he answered on the question of the counterstrategy for the SONY, “It is not just right time to judge the OLED TV of SONY yet, but until now, we think that the OLED TV of us is quite superior regarding the aspect of design of products, image quality, and its lineup and so on.”

On the recent investment for large-sized OLED of LG Display, “LG Display and LG Electronics, both of us, will wisely take and proceed the world best strategy together of premium TVs by strengthening the premium status of OLED TV.”

He explained on the TV business of LG Electronics, “We have been improving the profitability focusing on the premium lines, and also completely avoiding the quantitative competition. We plan to continuously sustain the quality-oriented rather than quantity.” He added, “We will pursue the activities to intensively keep the premium image of OLED.”

They stated to be maintaining the stable profit structures with aiming at continuous sales expansion of premium products through the marketing promotion for the premium TV-oriented to prepare the high-season for the TV market in second half.

Samsung Electronics’ Display Business Recorded Operating Profit of 1.71 Trillion KRW in Q2, 2017

July 27, 2017/in /by olednet

Samsung Electronics announced that it reached sales of 61 trillion Korean won and operating profit of 14.07 trillion Korean won, and the display business recorded 7.71 trillion won and operating profit of 1.71 trillion won, through the Q2 2017 Earnings Conference Call on 27^th. Its display business has recorded more than 1 trillion won in the black, for 4 consecutive quarters since Q3 2016.

According to Samsung Electronics, its earnings for Q2 2017 has increased compared to the previous quarter due to the expanded sales of flexible OLED panels and high value-added LCD products.

The OLED division saw its earnings improvement on the back of flexible products sales increase due to the expanded sales of major customer flagship models, and accounted for low 60% of sales. The LCD division also improved earnings by expanding the sales of high value-added products, mainly UHD and large TVs.

The OLED division is expected to see sales growth for the second quarter of this year due to the expanded supply of flexible products compared to the last quarter. However, there will be fiercer competition with LTPS LCD in the mid to low-end market and a risk of cost increase resulting from ramp-up of new capacity lines. Accordingly, Samsung plans to improve profitability by aggressively responding to major customer demand through stable ramp-up of new lines and improving product mix.

The LCD division is anticipated to be in a supply-demand imbalance due to set companies’ stock increase of panels and panel suppliers’ supply expansion, but premium TVs such as high resolution and super-size TVs are expected to continue to grow. Samsung has a plan to increase profitability by promoting yield and cost improvement activities and by expanding the sales of not only high value-added products such as UHD and large-size products but also differentiated design products such as frameless and curved products.

Samsung Electronics recorded sales of 93 million mobile phones and 6 million tablets in Q2 2017, and in the third quarter, the sales of mobile phones and tables are likely to increase slightly and remain flat, respectively quarter on quarter. The sales volume of LCD TVs is expected to reach 9 million units and grow at low single in the third quarter.

Samsung Electronics invested a total of 12.7 trillion KRW in its facilities in the second quarter, of which 4.5 trillion KRW were invested in the display. This year’s investment plan for facilities is yet to be determined, but investment is expected to increase substantially from last year, especially for semiconductors and displays. The display division plans to invest in production expansion to meet the increasing demand for flexible OLEDs.

Director Lee Chang-hoon of Samsung Display said, “The smartphone set makers’ OLED adoption will continue to increase with the constant strong demand for it. The current OLED line is being resiliently operated in line with market and customer needs”. He added “We will continue to use and operate OLED lines strategically in accordance with market demand and customer needs.”, and explained they are not considering the plan to further shift LCD lines into OLED.

LG Display, Expects 40% of OLED out of total sales in 2020.

July 26, 2017/in Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on, Focus on /by olednet

LG Display spoke that they plan to change the sales structure by focusing on the OLED sales at the conference call in Q2, 2017 which was held on 26 July, and they expected that the OLED sales portion among the total sales would be from 10% in this year to 40% in 2020.

Sang-don, Kim, the CFO of LG Display said that they will invest about 15 trillion won of production line for the Gen10.5 OLED and the Gen6 POLED(Plastic OLED) at Paju P10 factory against 4 years. He said that “The investment of Paju P10 is a leading task for the mass production and the improvement of efficiency because the demand of OLED TV is rapidly increasing by the forecasting of 2.5 million units in 2018 and 6 million units in 2020. We will take the P10 factory as an OLED hub.”

The CFO also said that “We plan to order and install the necessary equipment from July 2017 to January 2019 for the Gen10.5 OLED line in Paju P10 factory, and through test period for 6~12 months, the 1^st target will be to mass-produce the OLED of 30,000 units per month based on single unit. 5 trillion won will be invested to the P10 factory to install new lines of the Gen6 POLED with 30,000 units per month and it would be started to produce it in 2019.”

Accordingly, LG Display announced that E5 in Gumi, which was previously invested, plans to mass-produce the Gen6 POLED with monthly 15,000 units of scale in this year, E6 in Paju plans to mass-produce the Gen6 POLED with monthly 15,000 units of scale in Q2 2018. In addition, they mentioned that at the OLED new line in Guangzhou, China, will mass-produce the Gen8.5 OLED with monthly 60,000 units of scale from the first half of 2019 by the investment of the 5 trillion won. For concerns on the technology leakages about the investment of the Gen8.5 OLED in Guangzhou, the CFO, Sang-don, Kim, said “There was no cases of technology leakages in the LCD line of Guangzhou until now from last 2013 since the OLED is complicated technology to copy, and there would be much benefit by the localized equipment and all investment instead of it.”

Meanwhile, the sales of LG Display for the Q2 this year were reduced QOQ 6% (7,620 billion won) as 6,629 billion won, but, increased 13% versus same quarter of last year (5,855 billion won). The portions by the products are following: 46% for TV panels (QOQ +3%p), 22% for Mobile panels (QOQ -4%p), 17% for Monitor panels (QOQ +2%p), 15% for Laptop/Tablet panels (QOQ -1%p). LG Display explained that the performance in first half declined due to the seasonality impact, but the shipments in second half considered as high-season, will be increased versus first half.

What is the next-generation display poised to outshine OLED?

July 21, 2017/in /by olednet

The micro LED, QLED and hologram, which are referred to as the next generation displays, were presented at the seminar entitled ‘Recent Trends in Display and Vehicle Display Technology’ hosted by UBI Research on the 14th.

Under the theme ‘Technical Issues of micro LED Display and Market Trend’, professor Moon Dae-gyu of Soonchunhyang University said, “Micro LED can be realized in high resolution and it is easy to implement curved display or flexible display because there is no limit of panel shape and size” He added “When applying micro LED to a display, high resolution is feasible even on a small substrate size, so that it can be applied to VR, etc.” and expected “When applied to a public display, it will be able to escape from the method of tiling many display panels”. However, there remain some technical problems such as the problem of transferring and connecting millions of LED chips quickly and accurately, the deviation problem of color and luminous efficiency between LED chips, and the technical problem of implementing an active matrix for the application of a display.

Next, Dr. Hwang Do-Kyung of Korea Institute of Science and Technology(KIST), Dr. Bae Wan-ki, senior researcher of KIST, and Dr. Oh Min-Suk of Korea Electronics Technology Institute(KETI) announced the manufacturing principle of quantum dot and the possibility of self-emitting QLED using it. Dr. Hwang said, “The quantum dot has the advantage of not only color change depending on the size and but also narrow half width.” “Self-emitting QLED can display higher color purity than OLED.” he added.

Dr. Bae expected “If research is carried out on an enterprise scale, the speed of technology development will increase more rapidly.” saying that “At present, the efficiency of quantum dot devices is continuously improving, but the life span is insufficient compared to OLED.”

“We need the next generation display technology to follow the LCD and OLED,” said Dr. Oh Min-Seok of Korea Electronics Technology Institute(KETI). He added “QLED is attracting much attention as a next-generation display, but there remain such issues as too much focus on the development of emitting devices, the lack of solution process-related devices and technologies, and the non-cadmium-based high-efficiency blue light emitting devices”.

<Dr. Oh Min-Seok of Korea Electronics Technology Institute(KETI)>

As the last speaker, Kang, Hoon-Jong, team leader of Korea Electronics Technology Institute(KETI) explained the digital hologram technology and its application, and emphasized that a display panel capable of expressing the hologram is necessary to implement it. He said “We have a holographic printer or a microscope but there is no enough technology to apply it to TV”. Then, he closed his presentation saying “We need to develop a film for hologram first and then a functional design that can implement the screen.”

During the presentation about the next generation display, many of the speakers emphasized the importance of cooperation and participation among schools, research institutes and companies in order to overcome technical problems and realize them as actual displays. The display competition is expected to become even more intense in the future, as R&D in micro OLED, QLED, and hologram, which are considered as the next generation display, is concentrated.

The OLED is the best automotive display

July 18, 2017/in /by olednet

The seminar on the trend of the up-to-date technology for the next generation display which was themed ‘The technology trend for latest display and the automotive display’ hosted by the UBI Research, was held on July 14th at COEX in Seoul.

In the seminar, Sun-hong, Park, a senior researcher of automotive parts, said that “The attention to the display is increasing due to the importance of the visual intelligence, and its application will also grow because the OLED is able to easily realize the flexible deign and the transparent display.”

In addition, he expected that “The digitalization for the automotive will be lasting, and the China will take 50% and more of the worldwide consumption market for automotive in 2020, and the application of display including OLED will increase in accordance with the attributes of the Chinese who prefer colorful design.”

During the briefing of a car not having a side mirror which became an issue in recent, “The application of the OLED which has rapid response speed and wide viewing angle is highly likely to be employed. If it can just overcome the reliability, the OLED will be the best display for the automotive.”

In the other side, according to the “Automotive Display Report – application & market trend analysis and the market forecast” published by the UBI Research, it expected the OLED panel will be started in earnest applying to the cluster or CID of the automotive from 2018, and the automotive display is expected to grow about 17% annually, reaching around US$ 25,000 million by 2022. The AMOLED panel market among this will be account for about 20%.

AR and VR Market, Active Expansion in 2019 – What Propels the Growth?

July 13, 2017/in /by olednet

Forecast of US$ 58,700 million of total revenue of AR and VR in 2021
Active expansion expected in 2019 with UHD contents mass production and fast transfer of large size content for VR through introduction of 5G

With recent ICT (Information and Communication Technologies) progress, fourth industrial revolution is receiving attention as the new growth engine. Along with the increased interest in augmented reality (AR) and virtual reality (VR), products such as Oculus Rift and Gear VR continue to be released.

Released AR products include glass types such as Microsoft’s HoloLens and Google’s Google Glass. HMD (Head Mounted Display) based VR type products include Oculus VR’s Oculus Rift, HTC’s Valve, and Sony’s PlayStation VR, and smartphone based VR types include Samsung Electronics’ Gear VR.

According to AR and VR Display Market Report published by UBI Research on 7th, AR and VR product shipment is expected to record 17 million units in 2017 with US$ 3,900 million revenue. UHD contents mass production and introduction of 5G for fast processing large size VR content are expected from 2019. Accordingly, total shipment of AR and VR products is estimated to increase at approximately 54% CAGR, and show 96.4 million units of shipment and US$ 58,700 million revenue.

The report divided the market by product and display for AR and VR market analysis, which is further categorized into AR and VR product total market, market by VR product, AR and VR use display total market, AR and VR use OLED, and market by other display type.

For immersive virtual reality experience without dizziness, display conditions such as latency, FOV, refresh rate, and high resolution were selected as key issues and were analyzed. AR and VR products released between 2014 and 2016 were arranged by types, categorized by display type and key companies and analyzed.

Furthermore, business status of key IT companies, including Apple and Facebook, is included handling AR and VR product release status, related patent, and related company takeover. With the information on key panel companies’ AR and VR product exhibition status, the report is expected to be conducive to understanding key trends of related companies.

UBI Research estimates AR and VR use OLED shipment to be 2.6 million units in 2017, with 2.4 million units of other displays. OLED is expected to show 52% of market share with 48% of other display. In 2021, AR and VR use OLED is expected to show shipment of 52 million units and occupy 80% of the market.

LG and Samsung at the International TADF Symposium in Germany

July 12, 2017/in /by olednet

TADF (Thermally Activated Delayed Fluorescence) is an exciting new technology to provide highly efﬁcient and stable emitting materials for OLED devices. TADF emitters are poised to contribute to the next material-driven advancement of the OLED industry, making OLEDs ideal for even more applications. Right now, TADF technology is receiving much attention as it will lead to major improvement of OLED displays again. The importance of TADF technology and its impact of the Next-Generation OLEDs will be highlighted at the International TADF Symposium in Frankfurt, Germany. (www.tadf-symposium.com)

Directly after the well-known IFA conference, the world’s leading researchers from European and Korean universities will discuss aspects related to the development of TADF OLED materials from modelling through synthesis to analytics and device fabrication. In addition, the leading OLED manufactures LG and Samsung will reveal some of their views on the OLED industry and what impact high-efficiency TADF materials will have on it. Furthermore, CYNORA, the leading TADF materials provider, will present an update of its status and its finals steps in commercialization of first blue TADF emitters.

The registration for the International TADF Symposium will be open till 15^th August. The TADF event is sponsored by Lesker Tool, Schrödinger and CYNORA.

Meet the leading experts from OLED industry and academia on September 7th in Frankfurt, Germany.

Reduce OLED manufacturing time to 1/10

July 10, 2017/in Focus on /by olednet

Manufacturing technology has been developed to quickly fabricate OLED.
The Korea Research Foundation (KFRI) announced the Yun, Hongseok research team at Hanbat National University has developed a high-speed transfer technology that can effectively transfer multiple thin OLED layers to desired locations through high-pressure air jet injection.

The OLED transfer separates multiple layers of thin film from the substrate all at once and combines them with other thin films to produce a device. At this time, the thin film is ripped apart or wrinkled, and the corner is torn off, which make it difficult to mass-produce.

The team used the principle of effectively controlling the bonding energy between the thin film and substrate by a high-speed peeling technique using the air jet technology,. An air jet close to the sonic speed is injected between the substrate and OLED thin film to effectively reduce the bonding force with the substrate, thereby enabling the transfer without damaging the thin film. The high-speed transfer method through the air jet requires only short time to transfer the OLED; the processing time takes about 1/10 of production time. OLED thin films can be manufactured at low cost by coating them with a solution.

Professor Yoon, Hongseok explained, “This research has developed a technology that can rapidly manufacture OLED device because they can be effectively transferred all at once by using an air jet without damaging the OLED thin film. The unit production cost of OLED can be significantly reduced, which has been used in a wide range of applications such as OLED lighting, advertising and display. It is expected to be applied to basic electronic devices in the future such as solar cells and semiconductor devices. ”

The research was carried out with the support of the Researcher Support Project for the Basic Research Support Program of the Korea Research Foundation and was published in the international journal on nanomaterials applications, Nanoscale.

OLED TV is the competitive TV covering the whole areas such as the design and the sound quality as well as the image quality.

July 6, 2017/in /by olednet

“While the existing OLED TV is focused on the image quality, the current OLED TV is not only picture quality but also covering any areas including the design and the sound quality.”

In the keynote address for the workshop of ‘the 12^th Display National R&D Projects’ held on 5 July in Hoengseong, Gangwon-do, Soo-young, Yoon, a director of LG Display, introduced the advantages of OLED TV such as superior image quality, design freedom, and sound quality improvement including the capacity of the light and shade, and color implementation.

He said, “It is unlike LCD, OLED is the self-emitting, and be able to be controlled by a pixel unit, so that it is capable of expressing the perfect black, and implementing the unlimited contrast range. Therefore, OLED is the best display to express the stars or a bright moon in the darkness.” And also, he emphasized that “OLED TV is free to express the middle gradation through the precise color expressiveness, so that it is able to realize the vivid color as realistic.”

Subsequently, he introduced the wallpaper and CSO (crystal sound OLED) which attracted lots of attention in last CES 2017, “If the existing OLED TV is an image quality-oriented, the current OLED TV goes through any areas such as the design, sound quality but also the image quality. Especially, the embedded speaker methods are able to realize the high level of immersion, by agreeing the position of the mouth and the sound along with the effect of design advancement.”

A director, Soo-young, Yoon, also introduced the transparent flexible OLED which can implements the radius of curvature 80R, 40% penetration ratio, and 77-inch UHD, that developed for the commercialization, and mentioned that the transparent and flexible display will be a future display. He also said that they are on-going to develop the devices and materials for solution process, and it needs to be discovered the new application and new form factor.

Finally, he mentioned the P10 factory at Paju, “We expect to ultimately produce new OLED TV at P10 factory which plans to be completed by the end of this year through thorough preparation.”

OLED Highly Polarized OLED, A New Approach to Improve OLED Light Efficiency,

July 3, 2017/in Display /by olednet

Professor Kim Jae-Hoon of Hanyang University announced at the seminar, ‘OLED market analysis and latest technology’ for the first half, host by UBI industry research last June that a small amount of chiral molecule added to the polymer OLED emissive layer controls the polarization of light emission to improve light efficiency by 60%.

Two linear polarizers applied in orthogonal form to LCD are used to transmit or block the light from the back light unit through liquid crystal movement while one circular polarizer of OLED prevents reflection of external light, which is applied as a role to increase outdoor visibility

Display companies have focused on development of device structure, optical extraction technology and material, and luminescent mechanism to compensate for more than 50% luminescent light loss due to the polarizer. We need a way to improve the efficiency of OLED using polarized light. Professor Kim, Jae-hoon has presented a method and research results to improve the OLED light efficiency in use of polarized light, emphasizing ‘the need of a new approach in a new perspective’.

Professor Kim, Jae-hoon explained, ‘Polymer materials of OLED generate high linearly polarized light with high liquid crystallinity in general. When this light passes through a light emitting layer inclusive of chiral molecules, it becomes a circularly polarized light’. “Theoretically, the light efficiency can be increased by 100%,” he added. “This way, we can implement brighter OLED with lower power consumption.”

In application of this principle, Professor Kim, Jae – hoon and his team members have developed the OLED with luminous efficiency 60% higher than existing OLED and further research will be continued on circular polarization based on low molecular materials.

Meanwhile, the research was sponsored by the ‘Future Display Core Technology Development’ project, and the research outcomes have been published in the recent issue of an international journal, ‘Advanced Materials’.

How about the future OLED market performance?

July 3, 2017/in Display, Display, Display, Display, Display, Display, Display, Display, Display, Display, Display, Display /by olednet

At the seminar titled “OLED market analysis and the latest technology” host by the UBI Research at the FKI last June, the president, Lee Choong Hoon predicted the market through analyzing the OLED industry investment and mass production in the first half of 2017.

President Lee Choong Hoon emphasized that China will lead the OLED equipment market by 2021 due to increase in OLED demand of Chinese set makers. Accordingly, the Chinese equipment market is expected to account for about 48% of the entire equipment market in 2021, investing approx. US $ 40.5 billion.

It is anticipated that such movement of Chinese companies will affect the OLED smartphone market. In 2019, OLED smartphones will reverse the LCD smartphone market, accounting for 80% of the total smartphone market by 2021.

On the other hand, as for the flexible OLED, between 2017 and 2019, Samsung Electronics expects to invest heavily in BOE to be ranked second in the flexible OLED market, which should cope with the increasing demand on flexible OLED of Samsung Electronics and Apple.

President Lee analyzed that the premium TV market will be formed with larger than 65 inches as the 65-inch panels will be mass-produced at BOE’s Gen10.5 LCD plant from 2018. Consequently, panel makers without Gen10.5 will produce 65 inch panels on the Gen8 line in MMG (multi-model on a glass) method. On the other hand, LG Display is expected to continually produce TV OLED panel at Gen8, and since 2020 at Gen10.5 line.

According to ‘2017 OLED Manufacturing Equipment Annual Report’ published by the UBI research, from 2017 to 2021, it is anticipated that TFT equipment will account for 45% of the market share, followed by OLED pixel forming equipment 17%, encapsulation equipment 13%, cell equipment 13% and module equipment 12% respectively. As the demand on flexible OLEDs is expected to increase remarkably in the future, the market share of cell and module equipment will accordingly increase by 25% with high importance.

OLEDON, Find the future of AMOLED in plane source FMM!

July 3, 2017/in /by olednet

Three years have passed since the first QHD (about 515 ppi) OLED applied to Galaxy Note4 in 2014, but OLED resolution is still in QHD. In order to manufacture high-resolution OLED over UHD, FMM of less than 15 μm is required, but it is not applied to mass production due to various technical issues.

Professor Hwang Chang-Hoon, CEO of OLEDON, a venture business of Dankook University, proposed that the plane source FMM deposition technology is the only solution for a high-resolution OLED manufacturing process over UHD at the 1H semester UBI Research Seminar “OLED Market Analysis and Latest Technology” held on June 30 (Fri) at Yeouido FKI Conference Center.

Professor Hwang Chang-Hoon said, “To improve the resolution of AMOLED, the angle of flight of organic molecules should be reduced to less than 10 degrees and the aspect ratio of TFT devices should be maintained at 1.0 level.” and explained “The evaporation angle (incidence angle) of the currently known linear source is about 40 degrees, and the shadow distance is about 3 um. Therefore, the ratio of the pattern width, the shadow distance, and the aspect ratio can be increased at the SUHD level AMOLED patterning process. Ultimately, the current patterning technology loses the flatness of the film. “.

In addition, Professor Hwang Chang-Hoon said, “Linear deposition technology has limitations in achieving resolution higher than QHD, and development of plane source FMM deposition technology is the only way to manufacture OLED with 2000 ppi or higher.”.

The shadow distance measured by OLEDON’s plane source FMM deposition technique ranges from 0.68 to 1.05 μm and the angle of incidence is 13 to 19 degrees and converting this result to resolution makes it possible to fabricate a device with a maximum of 1500 ppi. On the other hand, with the newly developed Xplane source, the shadow distance was 0.38 ~ 0.56um and the incident angle was 7.2 ~ 8.0 degrees, it is possible to manufacture up to 3300 ppi device by converting it to the resolution. In the last SID2017, Prof. Jin Byung-Doo and Prof. Hwang Chang-Hoon introduced the world’s first measurement of sub-micron-scale shadow distance using plane source patterning technology, it has been announced that it is possible to manufacture a micro AMOLED device having a Super Ultra (SUHD) resolution of 11K (2250 ppi) or more if scale-up development is applied to large-area OLED display production industry in the future. (Paper title: Plane source evaporation techniques for Super ultra high resolution flexible AMOLED)

Sub-micron Shadow data and incident angle data obtained by plane source FMM deposition technology, Source: the 1H semester UBI Research Seminar

On the other hand, based on the development results, OLEDON announced that it plans to develop and install planar source FMM evaporator for research, which can manufacture ultra-high resolution micro OLED devices using plane source deposition technology, in Dankook University. (Refer to: OLEDON homepage www.oledon.co.kr)

영문 풋터