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

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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.

<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.

<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

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Kopin, 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.

<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

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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.

<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.

<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.

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

Sony, Two OLED TV models will be released in 2017??

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It is true that Sony, which had rumors, has entered the OLED TV market in 2017. Barry Young, CEO of the OLED association, told Forbes that Sony will launch two 55-inch and 65-inch OLED TVs in 2017.

The CEO, Barry Young will begin panel shipment from Q2 2017, and will begin full-fledged sales in Q3 or Q4. It plans that 55-inch 4K OLED TV will be about 80,000 units, and 65-inch OLED TV will be about 120,000 units.

Sony has previously released monitors based on LGD’s OLED panels, and it is reported that LGD will also supply OLED TV panels. Notable thing is the price of Sony OLED TV. According to Barry Young, Sony’s 55-inch OLED TV will cost about $ 1,999 and the 65-inch will cost about $ 2,999. This is respectively $300 cheaper than LG’s 55-inch UHD OLED TV price of $ 2,297 (OLED55B6, Amazon) and 65-inch UHD OLED TV price of $ 3,297 (OLED65B6, Amazon) released by LG Electronics in June 2016. In the premium OLED TV market, which is now dominated by LG Electronics, a price competition is expected.

It is unclear whether Sony’s OLED TV will be released at CES 2017, but it is expected to be confirmed at CES 2017 if production is certain. Due to Sony’s entry into the OLED TV market, LG Electronics is expected to aggressively price OLED TVs in 2017, it is focused on how Sony’s entry into the OLED TV market will contribute to the popularization of OLED TV and how it will affect the display industry.

<Sony’s PVM-X550 HDR 4K OLED monitor, source:digitalmediaworld.tv>

OLED TV, leading a new paradigm in the display market

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‘2016 OLED accounting seminar was held by Ubi industrial research on Dec 2nd in the Small& Medium Enterprise Hall. Lee, ChungHoon, the president of Ubi industrial research said, “OLED is leading a new paradigm in the display market, advancing a perfect black color and fast response rate compared to LCD. Most LCD manufacturers have introduced QD-LCD with the enhanced color reproduction, compared to the existing LCD. However, OLED is also in the evolution of display technology ”

LG electronics set up dark light at the booth in CES 2016; but later in IFA 2016 it displayed OLED TV, brightening the booth to show the confidence in luminance of OLED TV. Via CES 2016 and IFA 2016 the luminance has been improved from 600 nits to 800 nits, and next year OLED TV with higher than 1,000 nits will be launched.

The president Lee said, “In the current TV market, the unit price of OLED panel is triple the price of LCD and QD-LCD is double. If LG display reduces the OLED panel price, LCD manufacturers will be threatened due to the competitive pricing and technology of OLED panel.”

LCD manufacturers need to prepare marketing strategy for QD-LCD to be distinguished from OLED. Certainly there has been a market interest increased in QLED which seems, however, to be at a very early development stage like an embryo in the product life cycle. The soluble OLED will be introduced in the market earlier than QLED, the development of which prospectively takes at least 10years.

The primary issues of OLED TV can be summarized in three elements-size, price and luminance. The current OLED TV size is mainly 55”, but it is important to form a market for 65” and larger. The investment in Gen 10 line is necessary but has not been well established yet. As far as the price is concerned, if the ink jet technique is implemented in a new production line the price can be significantly reduced. The luminance can also be improved by 3-stack and top emission structure.

The shipping amount in 2016 is 390million, and will reach 1.5billion in 2020 in prospect. Flexible OLED panel will lead the high-end market while a rigid OLED panel for the mid-end market. The revenue will grow from 17trillion in 2016 to 60trillion in 2020. The estimate can be accomplished if Chinese manufacturers such as BOE, Tianma and GVO successfully advance and continue to grow in the market.

The current OLED market is growing in the mobile-oriented market, however, since 2018 TV will be stably settled and well established in the future.

2017 will be an important year to be able to emphasize the innovation of OLED to consumers

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<Lee Woo-keun, a senior researcher at LG Economic Research Institute>

Lee Woo-keun, a senior researcher at LG Economic Research Institute, predicted that the year 2017 will be an important year to be able to emphasize the innovation of OLED to consumers, in the seminar for the 2016 OLED evaluation held at the Yeouido Small & Medium Business Center in Seoul, hosted by UbI Research on last December 2.

He added “LG is leading the OLED TV market in the premium TV market ahead of next year’s CES, but we will have to keep an eye on the impact of Sony’s joining” as one of the notable issues in large-sized OLED panels, and he continued “as there is still a fundamental expectation for Sony’s image quality among existing consumers, we will have to pay attention to what innovative appearance Sony’ OLED TVs will show and how they can appeal to consumers.

Referring to the adoption of OLED panels in Apple’s iPhone8 (tentative name) in the mobile phone market, as a small and medium issue, he said “it is important how to realize OLED display on Apple iphone 8, and how much impact it will have on consumers through this”. He said “if we could not show the innovation distinguishing it from existing LCDs despite adopting OLEDs, consumers’ expectations for OLEDs may be diminished,” emphasizing that it should draw meaningful responses to OLEDs from consumers’ perspective .

It is expected that Apple will launch iPhone applying flexible AMOLED panels in 2017, and Sony is also being confirmed to continuously review its entry into the OLED TV business. In 2017, it is expected that the number of set-makers launching OLED-applied products will increase more. In the situation that consumers are expecting a ‘completely new thing owned only by OLED products’, which is entirely different from existing LCD products, through various media reports and rumors, the year 2017 seems to be an important year to emphasize the innovation of OLED and to promote its merchantability.