Sensational Self-driving Cars and OLED Display in 2017

Institute for Information & Communications Technology Promotion(IITP) has selected and announced the next-year top 10 issues of ICT(Information & Communication Technology) since 2008, and selected automotive issues including self-driving and connected cars among top 10 ICT issues in 2017.

A self-driving car is a vehicle that is capable of sensing its environment and surroundings and driving along a planned path, and a connected car is a car that is usually connected with a network due to its convergence with IT technology. Apple’s CarPlay and Google’s Android Auto are representative.

An autonomous car currently under development puts more importance on the display that can provide necessary information in time because information is increasingly diversifying and complex. With the higher availability of interior space in the not partial but full self-driving age, the utilization of display that can support a driver’s various secondary activities is expected to increase.

In addition, as smart devices and network have advanced, a connected car is expected to use media contents streaming and various application services through display including in-vehicle CID(Center Information Display). And, it will be a connected device that connects a driver-car-house through display that provides wireless communication service and information.

Accordingly, many panel companies including LG Display are developing automotive displays, and automobile companies also try to apply different displays in order to differentiate from other companies and highlight merchantable quality. Especially, they are actively considering flexible displays because it is difficult to use the large area of flat displays with curved surface in cluster and CID, and therefore OLED display with good design availability is receiving attention.

AMOLED panel has the advantages of rapid response speed and high visibility based on wide viewing angle, high color reproduction rate and contrast range. And, its flexible design is so easy that it is applicable regardless of location, thereby attracting automobile companies. But, its short lifespan remains a current issue, and panel companies are carrying out development for performance improvement such as better lifespan, service temperature, and brightness.

<Market Share Forecast of Displays in the Automotive Display Market, 2017~2022>

Meanwhile, according to “Automotive Display Report – application & market trend analysis and the market forecast” published by UBI Research, OLED pane is expected to be applied to automotive cluster or CID beginning in 2018, and the automotive display market is likely to increase about 17% annually on average and will reach about US$ 25,000 million by 2022. Also, it forecasted that the AMOLED panel market will account for about 20% of the total sales.

Will Curved TV Disappear in the Premium TV Market?

The curved TV introduced firstly in 2013 has attracted attention for a long time, and many companies including Samsung Electronics and China’s Hisense, Haier and TCL showcased curved TVs at CES 2016. In addition, newcomers including Xiaomi and LeTV released curved TVs, and Samsung Electronics organized ‘Curved Federation’ with China’s TV companies such as Hisense and TCL in August, 2016 to cooperate with each other for the expansion of curved market, and the reviews on the curved TV market are generally positive.

But, only a few companies such as Korean and Chinese ones unveiled curved TVs at CES 2017, while other electronics companies in Europe and the US showcased flat TVs only. Meanwhile, LG Electronics said that it plan to release flat TVs only for Q9, a flagship TV model of 2017 but curved TVs for less expensive models Q7 and Q8. With its plan to focus on flat OLED TV in the future, pointing out the downward trend of curved TV market, LG plans to pay more attention to flat OLED TV. Likewise, major TV set companies’ awareness of curved TV started to change. Besides, European electronics company Vestel mentioned the disadvantage of curved TV that is too sensitive to viewing angle, and TV review company Reviewed.com and other review companies offered negative opinions on curved TV. This expects that the position of curved TVs is likely to dwindle in the premium TV market.

Accordingly, the premium TV market will have intense competition for the clear picture quality of flat type TVs, whereas curved TVs are expected to have competition with Chinese companies in a lower level TV market. As many Chinese TV makers have released curved TVs, curved TV in the premium TV market is no longer a competitive point. Therefore, TV set companies need to find a new turning point to catch the eyes of the consumers.

<Booth Photos of Samsung(Left) and LG(Right) at CES 2016 and 2017. Many curved TVs were mainly unveiled in 2016, but flat TVs in 2017>

All about OLED in one place, UBI Research, ‘3rd OLED KOREA Conference’ will be held

UBI Research plans to hold the 3rd OLED KOREA Conference with the theme of “Lessons from History and How OLED Can Evolve” at Novotel Ambassador Hotel on Mar. 8 (Wed) to 9 (Thu).

The OLED industry is expected to grow rapidly according to the adaption of full-driven OLED panels by Sony and Apple in 2017 and the competition among panels, equipment, and manufacturing companies can be intensified at the same time. It is necessary to understand and respond strategically to industry trends for successful business under such circumstances. The opportunities to share ideas and concerns each other and close exchanges between Industry-academic institute, panel, materials and equipment companies have been required. UBI Research has prepared a place to freely exchange various information and opinions through the 3rd OLED Korea Conference by reflecting such needs of the industry.

The Korea Conference will be an opportunity to analyze the past trends of OLED which the usage and application range is getting wider and to discuss the successful advancement and strategies to grow the OLED industry for the future. Therefore, it will be a valuable time to practically help the OLED industry.

The Presentation is planned by twenty-four (24) domestic/international experts related to OLED display such as set and panel makers, materials/equipment companies, university/research etc. including UBI Research, Samsung Display, Cynora and CEREBA about followings:

▲Exploring new opportunities with OLED and the preparation, ▲Possible directions and the reasoning for OLED, ▲Lessons from the history and how OLED can be evolved, ▲OLED and its collaboration, investigating the possibilities

We will establish the opportunity to contribute to the growth of the OLED industry based on the sharing of mutual opinions by preparing a networking space between the companies through luncheon during the conference period and breakfast with OLED reception.

Detail information can be found in www.oledkoreaconference.com

The image quality is enough, AMOLED for user’s eye health is general trend now.

Modern people who are exposed to electronic devices such as smart phones, PCs, TVs, and monitors can cause fatigue and dry eye syndrome by blue light which might damage the retina or lens in severe case. It may especially disturb a restful sleep by affecting melatonin negatively which is the secretion of sleep-inducing hormone.

Samsung Display has introduced the strength points of self-emitting AMOLED on the blog that can block the harmful blue light by emitting nearby safe wavelength to keep the color and reduce the emission of 425-455mm area in harmful wavelength. They have acquisitioned the industry’s first “Safety for Eyes” certification regarding on the excellence of eye’s health in the photobiological stability test conducted by German certification institute, VDE (Verband Deutscher Elektrotrchniker e.v) in 2016.

They have also represented various advantages that offer excellent color reproduction ratio of 100% against LCD showing 74% level of DCI-P3 standard, thinner thickness than half and low power consumption compared to LCD. They promoted variety merits of eco-friendly AMOLED only for user’s eye health (e.g., ‘Vision Aid’ checks itself the degree of deficiency of cone cell for color blind people and adjusts intentionally the insufficient color stronger for them to look well) as well as the performance including image quality by using blog.

Meanwhile, Samsung Display showed a Bio blue panel applied pixel structure with deep blue sub-pixel and light blue sub-pixel in SID 2016 and IMID 2016. Deep blue and light blue are applied to prevent the degradation of color expressiveness of AMOLED panels that are replaced by light blue only and sharply reduced the gravity of blue light on AMOLED to 12.8%, half of the 25.1% of LCD.

<Bio Blue OLED Panel of Samsung Display, SID 2016>

AUO introduced bi-directional foldable AMOLED display which both internal and external displays can be bent 180 degrees.

Taiwanese company, AU Optronics(AUO) introduced bi-directional foldable AMOLED display at IDW(International Display Workshoops) 2016 opened in Japan Fukuoka from last December 7th through 9th, which both internal and external displays can be bent 180 degrees.

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<Changes in luminance ratio according to the folding time in inward and outward folding condition, IDW 2016>

The existing flexible AMOLED display is formed in the order of plastic board / OLED device / circular polarizer / touch film, and this structure had limits in flexibly bend both internally and externally because the upper and lower properties of main material become asymmetric. Regarding this, AUO located approximately 10um thickness of color filter array in the middle which replaces the circular polarizer, and located TFT and TFE layer in neutral axis, and by forming a structure to endure the tensile strength and compressive strength, they made it possible to endure folding cycle of more than 1.2 million in 4mm radius of curvature. The entire thickness is approximately 100um, and color filter array excluded the polarizer and used as a purpose of suppressing the reflection light.

Also, AUO introduced 5” foldable AMOLED panel function which applied the color filter array. When color filter array is applied, the power consumption decreased about 50% from 1603mW to 824mW compared to circular polarizer, and showed that the operating life was improved 3 times in 300 nits of same brightness.

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<AUO’s 5” foldable AMOLED display function, IDW 2016>

 

BY HYUNJUN JANG, HANA OH

Kopin, entering OLED microdisplay market for mobile VR and AR with new technology and business model

kopinKopin, mobile VR and AR wearable technology development company, announced on December 21(local time) that they will enter OLED microdisplay market for mobile VR and AR application. This company’s very first OLED microdisplay is expected to be tested during CES 2017 held next month.

Kopin mentioned they developed a new silicon backplane structure which can implement OLED-on-silicon microdisplay without restrictions of size, weight, and power of the direct view products. The characteristic of this microdisplay is the ultra-high resolution, low power, and small form factor which provides excellent user experience in mobile and wearable system.

Kopin mentioned OLED-on-silicon microdisplay consists of two main factors, silicon backplane and OLED release layer. What is special of Kopin’s business model is that, where the expert knowledge is in Kopin, both of the two manufacturing operations are the very first full fab-less OLED microdisplay business model which is outsourced in private foundry. The main reason that Kopin got involved in this fab-less is that they expect the demand of OLED microdisplay will largely increase along with VR and AR, MR market, and also they think utilizing investments from other companies seems to be the best way to be prepared in the market because there is burden in capital investments in OLED foundry.

Kopin’s CEO, as well as the founder, Dr. John C.C. Fan said “Kopin is one of the biggest and successful suppliers of microdisplay system where more than 30 million of AMLCD and LCOS products are shipped”, and “by adding OLED microdisplay and module in product portfolio, Kopin provide various display technology and optics technology where customers evaluate various designs, and based on that, we were able to manufacture the product where the application is optimized.”

Lastly, Dr. Fan said “Kopin’s OLED microdisplay is specially manufactured so that the improved technology can be utilized well that are being improved in virtual and reinforcement, mixed reality applications field”, and mentioned “Kopin’s target is to occupy a portion where they can grow in the OLED microdisplay market”. Along with competing companies such as eMagin and Sony, what new type of OLED microdisplay panel will Kopin introduce is expected attract attention in CES 2017.

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<Kopin’s world’s smallest smart glass display publicized in January 2016, businesswire.com>

 

BY HYUNJUN JANG, HANA OH

LG Display, announcement on development trend for OLED TV and latest WOLED device for lighting in IDW 2016

In IDW(International Display Workshops) 2016 held in Fukuoka Japan from December 7~9, LG Display announced on the development trend for OLED TV and latest WOLED device for lighting, and mentioned that the color area of latest WOLED device for OLED TV increased from 114% to 129% compared to sRGB, and 90% to 99% compared to DCI. In the paper, 3 stack structured 55” UHD OLED TV shows 150cd/m2 in full white screen, 500cd/m2 of luminance in peak white screen, and showed that it lowered the power consumption by 20% compared with 2 stack structure.

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<LG Display’s 2 stack and 3 stack WOLED lighting structure, IDW 2016>

Also by introducing WOLED for lighting, LG Display mentioned that lighting WOLED has 3 stack tandem structure with green-red/blue/green-red, where WOLED for OLED TV has 3 stack tandem structure with blue/yellow-green/blue. It showed high efficiency of 90lm/w by applying Ag cathode and light extraction film which the reflectivity is high, and the color temperature is 2,850K which is in the warm white range, CRI showed characteristics of 88. This OLED light will start its production in 3rd quarter of 2017 in 5 generation line.

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<LG Display’s 2 stack and 3 stack WOLED light structure which applied light extraction film, IDW 2016>

Meanwhile, LG display exhibited 800 nit 65” UHD OLED TV during OLED summit 2016 held last September in San Diego where they gained much interest compared to 65” curved QD-LCD TV quality, and it is expected that they will introduce OLED TV with improved luminance with more than 1,000 nits next year.

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<Comparison of black quality between 65inch OLED TV(left) and 65inch curved QD-LCD TV(right), LG Display, OLED Summit 2016>