OLEDWorks, released LumiCurve Wave, a flexible OLED lighting.

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OLEDWorks recently announced the release of ‘Wave’, the first commercially available OLED (organic light-emitting diode) lighting platform on flexible glass.

 

<OLEDWorks’ Wave lighting, source: oledworks.com>

As part of the new LumiCurve product family, the Wave is processed on 0.1mm thin Corning’s ‘Willow Glass’. OLEDWorks says that the Wave panels are extremely thin and light and deliver the superb light quality and excellent color rendering that is uniquely achievable with OLED.

The Wave is available in a warm white (3000K) model and a neutral white (4000 K) model. Warm white offers up to 300 lumens of brightness. Its efficacy is up to 62 lm/W (at 100 lumens), the temperature is 3000 K, and the CRI is 90. Neutral white has a maximum brightness of 250 lumens, efficacy of 47 lm/W (at 100 lumens), color temperature of 4000 K and CRI of 90. Both products offer a lifetime of up to 50,000 hours with a minimum bending radius of 10cm.
OLED, which is actively being adopted by the display of current mobile devices and TVs, is also being applied to a wide variety of applications including indoor lighting, automotive lighting, and display lighting in the lighting market due to its unique surface emitting characteristics.
In addition to OLEDWorks, which is launching new products, LG Display, which can mass produce OLED panels for lighting, is also expected to showcase various OLED lightings at CES 2019. Industries are focusing on whether OLED lighting market will be expanded in earnest.

The meaning of ‘Flexpai’, the world’s first foldable mobile phone

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Reporter : Daejeong Yoon

Having a Gen5.5 7.5K line in Shenzhen, Royole is known as a head mount display (HMD) company rather than a display company. After completing installation of equipment in the second quarter of this year, Royole has been developing panels for the target of 7.8-inch tablet PC.
RoYole has two peculiarities in OLED field. One is the world’s first mass-production of foldable OLEDs and the other is the first use of oxide TFTs in mobile displays.

 

Source: Royole Homepage

 

Because plastic film is used for the cover window of foldable phone, the display of out folding foldable phone is very likely to be damaged due to the external environment.

In fact, Samsung Display already developed a QHD resolution outfolding foldable OLED with a bending radius of 5 mm a few years ago, but the company plans to mass produce infolding foldable OLED to minimize damage to the screen from December.

Since Royole has not yet produced products with oxide TFT, the company has not achieved complete TFT reliability. Because of very low yield for the time, the available supply volume is expected to be limited even if the sales begin.

Apple adopts LTPO TFT to extend battery life time to Apple Watch Series 4

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Reporter & Analyst : Daejeong Yoon

Apple released its Apple Watch Series 4 with enhanced healthcare features on a larger screen than before, in the Steve Jobs Theater at Apple Park in California, USA on September 12.

<Apple Watch Series 4, Source: Apple.com>

In this announcement, Apple brought Apple watch series 4 with a new technology called LTPO to improve power efficiency.

LTPO stands for low temperature polycrystalline oxide. It is a kind of TFT using only the advantages of poly-Si with good charge mobility and IGZO with low power driving. LTPO TFTs have low leakage current and good on / off characteristics, which lowers power consumption and increases battery life.

<Apple’s LTPO TFT patent>

In addition, Apple increased the size of its Apple Watch 4 to 40mm and 44mm. The edge-to-edge screen is 35% and 32% larger than previous models by narrowing the bezel compared to previous models. The screen resolution was 368×448 pixels for the 44mm model and 324×394 pixels for the 40mm model. The display of Apple Watch4 is a plastic OLED made by LG Display with a maximum brightness of 1,000 nit. The Apple Watch Series 4 starts at US$399 for GPS model, while the cellular model starts at US$499. The Apple Watch Series 4 is available for pre-order from Septmber14 in the U.S. with the availability beginning September 21.

Japan’s first flexible OLED, finally made its debut

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Reporter & Analyst : Daejeong Yoon

Japan, which used to be the strongest country in display industry in the past, gradually declined through the era of CRT, PDP and LCD, and has fallen to the third-largest producer in OLED industry after China.
Currently, Japanese companies that produce AMOLEDs are Sony and JOLED. Both companies are producing OLED for special monitors at 500 ~ 1,000 units per month. Although JDI has developed flexile OLED, it has not commercialized yet.

Sharp has challenged the OLED market for smartphones in the current Japanese manufacturing environment, which was passive in production. The production of flexible OLED is to be started at the 4.5 generation production equipment of Sakai plant. The flexible OLED is scheduled to be adopted on AQUOS zero model for Soft Bank.

The product was exhibited at the Sharp booth of CEATEC 2018, which is a QHD+ 6.2-inch dual edge type. Sharp
Officials said that the sales have not started yet.

 

 

In addition, Sharp also exhibited two types of flexible OLEDs which are under development.

 

OLEDON, is to announce belt-plane source deposition technology for manufacturing ultra-high resolution and ultra-area OLED

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Plane source technology, which was first developed by OLEDON in the world, has the principle of depositing the first organic material on the metal surface and evaporating it upwards to produce fine pattern of 2250 ppi, which is ultrahigh resolution. In this plane source process, three processes such as the first deposition, the plane source inversion, and the second evaporation are necessary, and the number of the high vacuum chambers is increased when the mass production is applied. The belt plane source FMM deposition technology introduced by OLEDON has a concept of carrying out the above processes at a time in one evaporation equipment. This is a continuous plane source supplying deposition technology in which the metal surface is formed in a belt shape.

 

Hwang added, “Using vertical plane source enables smooth deposition process for the 12th generation class area substrate for QD-OLED TV without sagging problem. Vertical belt-plane source evaporation equipment adopts the concept of depositing the substrate in a standing-up position so that the load on the framed glass chuck and the open mask is very low. Thus, easy transportation of the substrate, and uniform deposition process of thin film over a very large area in the static state are possible.” This technology is expected to be applicable not only to the 8th generation but also to the cluster type mass-production evaporator with substrate sizes more than 10 generations in the future.

 

 

<Vertical belt plane source evaporator for QD-OLED, Source: OLEDON>

Commenting finally that the company has successfully completed the material denaturation test for blue materials and the blue dopant deposition test, Hwang expected the plane source deposition technology to be applied to both small & medium sized OLED and large area OLED manufacturing in future.

On the other hand, OLEDON holds more than 30 related patents including original patents of plane source and belt plane source evaporator. Also, the company recently filed a patent related to a vertical belt plane source evaporator for mass production.

 

Quarterly OLED sales was increased significantly

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According to the 3Q AMOLED Market Track issued by UBI Research, the second quarter OLED market was sluggish, affected by the lower utilization rate of Samsung Display. However, in the third quarter, the market rebounded rapidly, forming a market of US$ 8.3 billion.
The performance of the third quarter is up 43.9% from the US$ 5.77 billion in the second quarter, and up 16.6% from the same period of last year.

 

Samsung Display, which drove sales growth, posted sales of US$ 7 billion, while OLED sales for Smartphone accounted for US $ 7.2 billion as its major application.
By country, Korea achieved sales of US$ 7.9 billion, accounting for 95.5% of the total market. China occupied 4.3% of total sales with US $ 360 million.
Yi Choong-hoon, CEO of UBI Research, explained that 3Q sales growth was attributable to Samsung Display’s production of Galaxy Note and Flexible OLED for Apple’s iPhone XS.

[IMID 2018] Samsung Display, The display that will lead 5G is OLED

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At the IMID 2018 exhibition held in COEX, Seoul from Oct. 24 to 26, Samsung Display presented various OLED products under the theme of ‘optimized OLED for 5G era’.
First, Samsung Display emphasized the advantages of OLED by introducing the transition process of full screen OLED and HDR & true black under the theme of ‘realistic multimedia’. Currently, the smartphone market is dominated by full-screen smartphones applied with OLED, and OLEDs are able to display a completely black color compared to LCDs, resulting in a clearer picture quality.

 

The company also introduced the next generation touch technology such as HoD (Haptic on Display; when you touch the screen, you can feel the physical vibration by hand. Thus, you can enjoy the contents realistically.), FoD (Fingerprint on Display) and SoD (Sound on Display) together with full screen technology.

In addition, the front of the booth is equipped with a space to experience the durability of the flexible OLED with a plastic cover window, so that visitors can try to hit the panel with a hammer or drop the ball. Various advantages of flexible OLED have been shown.

 

Moreover, OLED for VR, which implemented 1200ppi ultra-high resolution, automotive rollable display (CID) and 5.9 type transparent HUD were displayed, raising expectations for future development of display technologies.

LG Display unveiled its 8K OLED TV for the first time in Korea, which had been showcased at CES 2018 in Las Vegas earlier this year. This product is the biggest OLED TV that is currently in existence and provides 4 times clearer picture quality than UHD resolution.

Furthermore, LG Display showed the possibility of various OLED applications while the company showcased its 65-inch CSO (Crystal Sound OLED), a sound system built into the panel, and 77-inch UHD wallpaper OLED product that can be closely adhered to the wall to enhance interior effects in the living room.