TADF、今年の秋、有機ELカンファレンスで話題に… Cynora、メーカーを代表して技術力を強調

TADF is one of hot issues in OLED industry. (写真出典 : CYNORA)

Hyunjoo Kang / jjoo@olednet.com

済州島IMID 2016をはじめに今後有機EL関連のカンファレンスが本格的に開かれる予定の中、熱活性化遅延蛍光(TADF)技術が今回秋シーズンの有機ELイベントの熱い関心事の一つであると予想される。

Cynoraのような、この分野をリードするメーカーは、今年の秋の有機EL関連イベントを通じて、その技術力を積極的に公開する計画である。

現在、市販されている有機EL搭載製品は、ブルー発光材料の効率が低いため、ディスプレイのエネルギー効率に限界があるというのが問題として指摘されている。

核心的なディスプレイメーカーの間で、TADF技術はブルー発光材料の効率を高めるための代表的な方法として脚光を浴びている。

来る8月23日から済州島で開かれるIMIDと、28日からサンディエゴで開催されるSPIEカンファレンスでも、この技術に対する重要性が浮き彫りにされる予定である。

ブルー材料関連のTADFをリードするCYNORA GmbHは、今回のふたつの行事で、業界を代表してこの技術に関連する情報を発表する計画である。材料の開発から精密な機械工学に至る内容が用意されている。同社は5月、外部量子効率(EQE)が16.3%(100cd/m2条件)に至る濃紺色材料を開発したと発表した。

これと共に、韓国の成均館大学、日本の九州大学、中国の清華大学も今年の秋のカンファレンスを通じて、この技術に関連する学術情報を共有する計画である。

一方、9月末にサンディエゴで開催される有機EL World Summitでも、有機EL応用製品の消費電力を改善する技術が重要なテーマの一つであると予想される。

 

やはり特許の強さ… UDC上半期、材料の売上高は低下、営業利益は大幅に上昇

出典 = UDC

出典 = UDC

有機EL材料の特許で最強の企業であるユニバーサルディスプレイ(UDC)が、2016年上半期の材料の売上高が低下したのもかかわらず、大幅な営業利益を記録した。ロイヤリティとライセンス部門の売上高が増加したのが、利益上昇の要因であると分析される。

4日(現地時間)、UDCは実績発表を通じて上半期は米ドル9,410万ドルの売上高と、3,670万ドルの営業利益(operating income)を出したと明らかにした。UDCは、前年同期は310万ドルの営業損失(operating loss)を記録したが、今年上半期の営業利益が大幅に改善された。売上高は、前年同期に比べて5.4%上昇した。

UDCは、今年上半期の材料の売上高が4,662万ドルで、前年同期より約9%下落した。しかし、ロイヤリティとライセンスの売上高は約24.3%上昇し、営業利益の改善に貢献した。

有機EL市場が成長するにつれて有機EL材料市場も大きくなっているのがUDCの実績成長につながったと分析される。UBIリサーチの「2016 OLED Emitting Materials Annual Report」によると、世界の有機EL発光材料市場は、2016年から有機EL発光材料市場は年平均46%の成長率を描き、2021年には43億2300万ドル(約4兆9250億ウォン)規模に達すると予想される。

有機EL材料市場は、多数の特許が適用されるところであるため、広範囲な特許を保有しているUDCの立地が大きい。実際にUDCは、過去2014年、2015年連続で有機EL発光材料市場の売上高グローバル1位に上がった。この会社は、最近、BASFで有機ELりん光材料の特許を9600万ドルで買収して注目を浴びた。

UDC、BASFの有機ELりん光材料の特許を9600万ドルで買収 …やはり材料界の特許の帝王

Source = UDC

Source = UDC

Hyunjoo Kang / jjoo@olednet.com

有機EL材料業界で特許の帝王として君臨しているユニバーサルディスプレイ(UDC)が、ビーエーエスエフ(BASF)の有機EL関連の特許を米ドル約9,600万ドルで買収したと28日発表した。

この特許ポートフォリオは、主に有機ELりん光材料に対するもので、既に出願された500件を超える特許とまだ出願前の86件の特許も含む。BASFのこの有機ELポートフォリオは、平均で10年間有効である。

UDCは、今回のBASF社の特許買収により、ブルー発光システムを開発するために役立つことを期待している。今回の買収でUDCは、4,000件を超える出願特許と待機中の特許を保有することになる。UDCは、米ドル3億9,570万ドルの現金を持っており、今回のIP買収の費用は十分に可能である。

今回のUDCの動きは、韓国の有機EL発光材料メーカーも注目している。有機EL材料市場は、特許競争力が左右するので、十分なIP確保が重要だからである。

UBIリサーチの調査によると、UDCは、このような特許競争力を前面に出して、2015年は前年に続いて、世界の有機EL発光材料市場で1位を占めた。徳山ネオルックスなど、韓国の材料メーカーは、UDCの強固な市場の先取りに対抗して、特許競争力の確保に積極的に乗り出している。

成均館大学高分子工学部イ・ジュンヨプ教授は、4月に開かれたフォーラムで、「UDCの特許は、これまで訴訟を経てやや縮小された部分もあるが、いまだりん光材料がほとんどすべて含まれる広いクレームを持っている」とし、「UDCは別の特許を買収するなどの対応に乗り出し、韓国メーカーもこれに対する対応策を探さなければならない」と強調した。

一方、BASFは、2015年には有機EL関連の研究開発を中断している。

Galaxy S Series Luminance Increase Trend Shows Blue Materials Luminance Needs to be Improved by 3.7 Times

Galaxy S Series Luminance Increase Trend Shows Blue Materials Luminance Needs to be Improved by 3.7 Times (Source = UBI Research)

Galaxy S Series`s Blue Materials Luminance Needs to be Improved by 3.7 Times (Source = UBI Research)

Hyunjoo Kang / jjoo@olednet.com

If the Galaxy S Series luminance increase trend continues, it is estimated that the luminance will reach 754 nits within 2-3 years. In order to produce Galaxy S with 754 nits, the luminance of blue emitting materials, that will be used for the product’s AMOLED, is analyzed to require improvement by approx. 3.7 times.

According to AMOLED Characteristics Analysis Report of Galaxy S Series, published by UBI Research, the analysis of luminance increase trend of Galaxy products from S4 released in 2013 shows Galaxy S series with full white luminance of 430 nits and peak white of 754 nits is expected to be produced within 2-3 years. The Galaxy S4 luminance is 338 nits (peak white), and the luminance increased to S7’s 505 nits via S5 and S6’s 400 nits mark. Calculating based on this trend, the future product is analyzed to have 754 nits of luminance.

The report reveals that for Galaxy S7, the luminance of red materials is 142 nits, green 338 nits, and blue 26 nits. To actualize 754 nits screen, the red materials have to improve luminance by approximately 1.5 times, green 1.2 times, and blue 3.7 times. UBI Research explained that for high resolution screen with limited size, emitting materials performance improvement is a must and that technology development should be focused on blue emitting materials.

* Luminance figures (nits) quoted in the article have been measured by UBI Research, with Auto Brightness function switched off. Future luminance forecast is also without this function.

Silicone Better than Acrylic for Flexible OLED…Momentive Introduces InvisiSil

Momentive demonstrated InvisiSil at SID 2016 (Source = Momentive)

Momentive demonstrated InvisiSil at SID 2016 (Source = Momentive)

 Hyunjoo Kang / jjoo@olednet.com

One of the issues of flexible OLED actualization is acrylic’s vulnerability against lower temperature, and silicone is emerging as a solution. Meanwhile, Momentive is attracting attention with their promotion of silicone based InvisiSil.

One of the key encapsulation technologies for flexible OLED is TFE (thin film encapsulation) that laminates thin inorganic and organic films, used by Samsung Display. Of these, organic material is formed through inkjet OLED process using acrylic materials. However, acrylic organic materials are easily broken under 0 ℃, which leads to difficulties in producing flexible OLED using these. However, silicone based materials can withstand up to -40 ℃ and are considered strong candidate for acrylic replacement.

Momentive is a company that develops such silicone based materials. In SID 2016 (22-27 May), Momentive opened an exhibition booth and presented InvisiSil Snap Cure silicones. The InvisiSil Snap Cure systems can cure rapidly at room temperature without UV exposure.

Momentive explained that for flexible AMOLED panel to move past edge type and toward true flexible such as foldable and rollable, silicone is much better suited than acrylic. Furthermore, they added that silicone based materials have yet revealed any disadvantages compared to acrylic, and that it is in development for continued application to mass production.

CYNORA, significant progress in blue materials for OLEDs…EQE 16.3%

Source : CYNORA

Source : CYNORA

Hyunjoo Kang / Reporter / jjoo@olednet.com

CYNORA, a leader in TADF (thermally activated delayed fluorescence) materials, has made significant progress in its highly efficient blue material developments during the last 6 months: a strong indicator for reaching performance levels requested by the OLED industry.

CYNORA has been working on organic TADF emitting materials during the last 5 years.

Since 2015, CYNORA applies its experience to develop pure organic highly efficient blue dopants for vacuum deposition.

The TADF technology combines high efficiency (3 times better than the state-of-the-art fluorescence technology) together with long lifetime.

OLED displaysincorporating blue TADF materials will reduce power consumption up to a factor of 2.

CYNORA has developed deep blue material reaching an EQE of 16.3% (at 100 cd/m2) compared to 3% reached in October 2015, a factor 5 improvement in six months. In parallel, the company is using sky blue material to improve the device lifetime.

A significant increase in the lifetime to more than 400 h (LT50, 500 cd/m2) has recently been achieved from a level of a few minutes in last October.

“We have yet to reach the performances requested by the OLED display industry” says Thomas Baumann, CYNORA’s CSO, “but our rapid progress during the last 6 months proves our capability to reach the performance levels we have defined together with our key customers to support their technical roadmap. We will use the coming months to combine both efficiency and lifetime in a single deep blue material.”

CYNORA owns a broad IP portfolio on TADF with over 100 patent families and is aiming for over 600 patents.

UDC’s 2015 OLED Emitting Materials Revenue $ 113 million, a 11% Decrease…Still Leading Market

Source : UDC

Source : UDC

Hyunjoo Kang / Reporter / jjoo@olednet.com

UDC (Universal Display) that is dominating the global OLED emitting materials market, recorded 11% reduced OLED emitting materials revenue in 2015 compared to 2014. Despite the decreased revenue, it maintained its top place in the market.

According to 2016 OLED Emitting Material Annual Report, published by UBI Research, UDC recorded approximately $ 113 million in 2015 OLED emitting materials revenue. In 2014, this company’s OLED emitting materials revenue recorded $ 127 million and led the global market, and maintained its position in 2015.

In particular, this company is a dominating presence in dopant materials sector. In 2015, UDC occupied 82% of the dopant materials sector, and the rest of the companies share the remaining 18%. Based on the phosphorescent patents, it is supplying phosphorescent red and green dopant to Samsung Display and LG Display.

Following UDC’s top place in 2015 global OLED emitting materials market in terms of revenue, Idemitsu Kosan ranked 2nd, and this was followed by Novaled, Dow Chem., and Samsung SDI. In 2013, Dow Chem. was at the top of the market, but since 2014 UDC overtook the leadership. In 2016, LG Display’s OLED TV mass production line operation rate, materials structure of Galaxy Note series to be mass produced in H2, and other factors are expected to affect the OLED emitting materials market.

UDC is scheduled to announce 2016 Q1 performance on 5 May (local time).

 

2015 OLED Emitting Materials Market, Dow Chem and LG Chem in Slump…Why?

Hyunjoo Kang / Reporter /jjoo@olednet.com

 

Source: UBI Research, 2016 OLED Emitting Materials Annual Report

Source: UBI Research, 2016 OLED Emitting Materials Annual Report

 

In the midst of UDC`s domination of 2015 global materials market, with Japanese Idemitsu Kosan`s rapid growth and slump of emitting materials companied, there has been changes to the enviroment.

According to [2016 OLED Emitting Materials Annual Report] to be published by UBI Research in mid-April, the 2015 global emitting materials market recorded approximately a 17% growth compared to 2014

 

 

UDC’s revenue decreased from previous year, but remained at the top, the same as 2014. UDC was closely followed by Idemitsu Kosan despite its fourth place in 2014.

Such growth of Idemitsu Kosan is mainly due to its supply expansion in regards to Korean companies such as Samsung Display and LG Display. In 2015, Idemitsu Kosan began actively supplying Samsung Display with blue materials. Together with the increase in Idemitsu Kosan’s client LG Display’s OLED panel for TV mass production line’s operation rate, Idemitsu Kosan’s supply increased.

 

2015 Global OLED Emitting Materials Market Ranking Source: UBI Research, 2016 OLED Emitting Materials Annual Report

2015 Global OLED Emitting Materials Market Ranking
Source: UBI Research, 2016 OLED Emitting Materials Annual Report

 

◆ Samsung Display to Determine Up and Down of Companies

On the other hand, some OLED emitting materials companies that ranked high until 2014 showed poor performance. Dow Chem., that reached the second place in 2014 after UDC in revenue, fell to the fourth place in 2015 due to a big sales decrease. The third and fifth companies in 2014, LG Chem and Duksan Neolux respectively, fell below fifth place in 2015 due to the same reason.

Dow Chem. and Duksan Neolux are analyzed have recorded sales decrease in comparison to 2014 due to the supply chain changes of Samsung Display. In the case of LG Chem, the sales fell as the Samsung Display’s supply volume decreased.

However, Samsung SDI recorded sales increase, and entered within the top 5 in 2015. This company’s performance improved as it supplied Samsung Display with green host.

The company that recorded greatest growth is a Germany company Novaled that Samsung SDI, then Cheil Industries, took over. This company recorded approximately 150% revenue increase compared to previous year, and reached the third place in 2015 following UDC and Idemitsu Kosan. With the increase in OLED panel for TV mass production line’s operation rate, Novaled’s revenue greatly increased.

UBI Research estimated that in 2016, LG Display’s OLED TV mass production line operation rate and Galaxy Note series’ material structure, to be mass produced in the second half, will greatly affect revenue of OLED emitting materials companies.

CYNORA focuses on blue TADF-materials

During the 2nd OLED Korea Conference, the Germany-based CYNORA has presented its current status in blue TADF-based OLED-emitter development.

CYNORA focuses on materials that are able to convert triplet excitons into light via Thermally Activated Delayed Fluorescence (TADF).  While efficient emitters for red and green are already commercially available from other suppliers, there is still no blue OLED material available to match the strong demand for the industry. TADF technology is a promising candidate for highly efficient and stable blue emitter systems. TADF-based emitters offer up to four times better efficiency than currently used materials, which are based on fluorescence.

CYNORA has shown its current TADF-materials for sampling with good color points in blue (CIE 0.16, 0.17) and sky-blue (CIE 0.19, 0.36). The presented materials confirm that blue emission and high efficiency can be combined. CYNORA is focusing its current material development on vacuum-processing following the customer request, as represented in large investments into this deposition technology by the major AMOLED displays makers.

In order to provide more sample materials to customers, while reducing the cycle times for material improvements, CYNORA is growing its infrastructure. The company is extending the device testing capacity by setting up a new cluster tool and hiring continuous experts for the synthesis and device department. Due these actions CYNORA’s emitter throughput will increase significantly.

The strong interest from the OLED industry in TADF-based blue emitters systems has been once more confirmed at this UBI event and allowed CYNORA to further extend its network with the Korean OLED community.  The present expansion of CYNORA management operations, consistently sampling and improvement of blue OLED materials are further strengthening the position of CYNORA as a technology leader in the field of TADF emitter systems.

[Lighting Japan 2016] What is the Key Issue of Solution OLED Materials?

In Lighting Japan 2016 (January 13-16) conference, Sumitomo Chemical and Merck revealed recently developed soluble OLED materials performance results.

 

The soluble OLED materials efficiency published in this conference reached ≥ 65% of UDC’s evaporation materials; particularly, Sumitomo Chemical’s red achieved ≥ 85%, and green reached ≥ 88% of UDC’s evaporation materials efficiency. Lifetime (LT 95) results were not as good as efficiency with red’s 25% and green’s approximately 40% (average).

 

Sumitomo Chemical and Merck both revealed that although in terms of efficiency the soluble materials almost caught up to evaporation materials, but lifetime requires further development.

 

Solution process is a method that allows for large area OLED panel production in RGB method using ≥ Gen8 manufacturing equipment. Key panel companies are actively carrying out research development, and the performance of soluble OLED material is considered the biggest issue. According to Solution Process OLED Report 2015, published by UBI Research, when solution process is applied the material cost can be approximately 40% reduced compared to the current evaporation process using large area OLED panel. The timing for the solution process application to mass production is expected to be decided depending on the development speed of soluble OLED materials.

 

OLED Materials Performance Comparison

OLED Materials Performance Comparison