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OLED Daily Issue, April 22, 2019

▶ OLED is also worried about oversupply…” China factory size, twice that of Korea.” (YONHAP NEWS)

(Full text of articles: https://www.yna.co.kr/view/AKR20190419148900003?input=1195m)

Following LCD panels, there are predictions that oversupply can become a reality for OLED panels.

Concerns are growing as South Korean companies plan to grow OLEDs into new “cash cow” instead of LCDs that China has taken the lead.

According to a recent report released by Hana Financial Management Research Institute on 21th, the number of OLED panel factories currently under construction in China is 419,000 sheets per month, about twice the amount of 225,000 sheets per month, which is the size of South Korea’s expansion.

According to the report, China’s BOE, which ranks first in LCD panel market, is going to increase its size to 144,000 panels. In addition, Chinese panel manufacturers such as CSOT, Visionox, and TCL are also scrambling to expand their facilities on a large scale.

Among South Korean companies, LG Display is set to operate its 90,000-unit monthly plant in Guangzhou, China, and it is expected that there will be a total of 45,000 panels per month in Paju.

Industries predict that size of OLED plant that will be built by Samsung Display in Tangjeong, South Chungcheong Province, will reach 90,000 sheets per month.

“As speed of expansion of OLEDs in South Korea and China is much faster than rate of increase in demands, there is a high possibility that oversupply will worsen.” said Joo-wan Lee, a researcher.

 

▶ The screen shield that caused controversy over faulty Galaxy folds…Why do I need it? (Yonhap news)

(Full text of articles: https://www.yna.co.kr/view/AKR20190421010700017?input=1195m)

Samsung Electronics’ first foldable Smartphone was embroiled in controversy over its screen defects even before it was released. Samsung Electronics explains that this happened because early users removed “screen protection film,” which can be misunderstood as screen protection film.

<Samsung Electronics [Samsung Electronics Co., Ltd.]>

According to industries on the 21st, current Smartphones are going to protect displays by attaching cover windows with reinforced glass material on top of OLED display panels.

OLED panels themselves are very thin like vinyl and are weak against external shocks. Plastic OLED (Plastic OLED) that is used for foldable Smartphones is more vulnerable to scratch. However, it can’t put glass, which is a material that doesn’t fold, so it is finished by applying film of plastic material.

“Although screen protection films that we already know are additional products that prevent scratching, protective films that are used for flexible displays are very important for displays.” said Professor Hak-seon Kim of UNIST, who is a former vice president of Samsung Display. Ok-hyun Jeong, an electronic engineering professor at Sogang University, also said, “The fact that we took out a protective film from PLED is tantamount to ripping off the display parts themselves.”

OLEDs emit light as organic materials, and due to their characteristics, they are very susceptible to oxygen and moisture components. When a thin panel itself is subjected to strong pressure during a screen’s opening, it can cause the screen itself to become indigestion due to moisture in an empty space.

Plastic has a weaker hardness than glass, making it easier to scratch the surface.

In addition to screen glitches, the media that received Galaxy Folders for review such as Bloomberg and Derverge points out that the protective film is easily dented or scratched. One reviewer said, “I tapped the screen with my fingernails, but there are still permanent marks.”

Some point out that there is a gap between the protective film and the display, which makes it easier for dust and others to get rid of it. One reviewer suggested a photo showing the gap between the screen’s protective screen and bezel, suggesting that it could be misleading.

Due to this reason, Samsung Electronics explained that its screen shield is for ‘replacement’. Since there is a higher chance of damage such as scratch than conventional glass, they were made so that they could be replaced at that time. However, users should not replace them directly and go through a service center.

Experts point out that such precautions should be sufficiently notified to consumers before the launch, and that early users also need to follow basic precautions as they use first-generation products.

Jeong said, “Samsung Electronics seems to have lacked notice of screen protection. “We need to strengthen advance notice when it is officially released.” said a person who dropped it from the company, which is about 100 grams more than normal Smartphones, risks further damage when it is dropped from the same location. This part also requires the user to pay attention,” he pointed out.

“Since the film itself is a plastic material, even if it is attached with protective film, it can be pierced and torn if exposed to sharp needles, unlike glass,” Professor Kim said. “In fact, these precautions should be properly introduced when selling it.”

 

▶ SK is investing in OLED business? (etoday)

(Full text of articles: http://www.etoday.co.kr/news/section/newsview.php?idxno=1747027)

SK Corp. is considering investing into OLED material business. As OLED markets are rapidly growing, industries that are made of OLED materials are also increasing.

According to mid- and long-term management plan data that SK Corp. held a corporate briefing for analysts of securities companies on Wednesday, SK Corp. is also reportedly considering investing in OLED materials to expand its material business.

SK Corp. has set a mid- and long-term strategy for its material business to expand its high-growth area by utilizing its current material platform.

For OLED materials, LG Display is planning to develop its own technologies by linking current SK Trichem’s technologies such as precursors and others while also considering investing in them.

Industries predict that SK Corp. will be able to expand its business through investments as it is an investment-type holding company.

For battery materials, which are planning to enter markets with high-entry barrier materials through partner companies’ cooperation and investment in technology holding companies, it has quickly entered the market by investing 270 billion won into shares of related companies.

SK Corp. previously acquired the stake in Watson, China’s No. 1 company that manufactures the second-order essential part of the battery, in November last year.

A reason why SK is showing interest in OLED markets is because OLED markets are growing rapidly.

According to a market research company called Ubi Research, size of OLED display market was estimated to be $28.31 billion (31.9568 trillion KRW) last year, which is a 7.1% increase year-on-year and is expected to grow to $32.3 billion (36.457 trillion KRW) this year.

It is expected to grow to $59.5 billion by 2023.

As a result, many other companies are working on OLED materials. Earlier this month, LG Chem stepped up its related business by acquiring material technology for “Solid Organic Light Emitting Diodes,” a key platform for next-generation displays, from DuPont in the U.S.

Doosan also established a new company through division of its business sector to strengthen its material businesses such as OLED.

“We have no specific plan to invest in OLED materials yet.” said a representative for SK Corp.

가상(VR)·증강현실(AR)이 선택한 ‘OLED 디스플레이’

최근 4차 산업혁명을 주도하고 있는 가상·증강현실 기기에 OLED 디스플레이를 채용함으로써, LCD에 비해 응답속도가 빠르고 풍부한 색감과 높은 명암비 구현이 가능해짐에 따라, 사용자는 보다 현실감 있고 생동감 넘치는 영상을 체험할 수 있게 되었다.
가상·증강현실용 OLED 디스플레이는 게임, 광고, 교육 등 전 산업 분야에 걸쳐 폭넓게 활용되고 있으며, 이에 따라 관련 출원이 최근 활발하게 이루어지고 있는 것으로 나타났다.

특허청에 따르면, 가상·증강현실용 OLED 디스플레이의 출원은 매년 증가 추세에 있으며, 특히 최근 3년간 관련 출원이 크게 증가한 것으로 나타났다.

<가상·증강현실용 OLED 디스플레이 출원 동향, 출처: 특허청>

최근 연도별 출원 현황을 보면, 2014년 240건, 2015년 263건, 2016년 439건으로, 2014년을 기점으로 가상·증강현실용 OLED 디스플레이 기술에 관한 출원 건은 급격히 증가하였다.

가상·증강현실용 OLED 디스플레이 분야 출원이 최근에 증가한 이유는 가상·증강현실 기기의 본격적인 대중화를 위한 선결 과제로 해상도와 응답속도, 활용성, 착용감, 가격 등 다양한 조건들의 발전이 요구되고 있는데, OLED 디스플레이는 실감나는 영상을 구현할 수 있고, 플렉시블 설계가 용이하다는 점에서 기존의 LCD에 비해 이러한 니즈를 월등하게 충족할 수 있기 때문인 것으로 보인다.

또한, 2020년 기준으로 가상·증강현실 시장 규모가 약 800억 달러로 크게 증가될 것이라는 전망에 비추어 볼 때, 가상·증강현실 기기에 적합한 OLED 디스플레이가 플렉시블, 롤러블, 벤더블 및 스트레쳐블 디스플레이 형태로 다양하게 개발됨에 따라 가상·증강현실용 OLED 디스플레이 기술에 관한 출원의 증가 추세는 지속될 것으로 예상된다.

가상·증강현실용 OLED 디스플레이 기술에 관한 출원인별 출원 현황(2007년 ~ 2016년)은 대기업 774건(60%), 중견·중소기업 142건(11%), 대학‧연구기관 72건(6%), 개인 70건(5%)을 출원하였고, 외국인이 237건(18%)을 출원한 것으로 조사되었다.

주요 출원 업체별로는 엘지전자 465건, 삼성전자 216건, 마이크로소프트사 51건, 삼성디스플레이 29건, 에스케이플래닛 20건, 퀄컴 17건, 엘지디스플레이 17건 순으로 집계되어, 가상·증강현실용 OLED 디스플레이 관련 기술이 국내 기업에 의해 주도되고 있음을 알 수 있다.

가상·증강현실용 OLED 디스플레이의 응용분야별 출원 현황을 보면 개인용 엔터테인먼트(게임, 테마파크, 체험관) 426건, 국방(전쟁 시뮬레이션, 무기개발, 전투기 조종) 169건, 광고 141건, 의료(3차원 시뮬레이션, 가상 내시경, 모의수술) 131건, 헬스케어 123건, 영화 117건 등으로 나타나, 가상·증강현실용 OLED 디스플레이 기술은 게임과 국방 산업 분야에 가장 활발히 활용되고 있음을 알 수 있다.

특허청 김종찬 디스플레이기기심사팀장은 “TV나 휴대폰과 같은 개인용 제품 중심으로 발달한 OLED 디스플레이는 뛰어난 영상제공 능력을 기반으로 가상·증강현실 뿐만 아니라 새로운 산업분야로 활용 영역의 확장이 예상되며, 아울러 OLED 디스플레이의 수명 연장 및 사용 온도 범위 확대 등 성능 향상 과제를 해결하기 위한 기술과 관련된 출원이 증가할 것으로 예상된다.”고 전망했다.
특허청은 OLED 디스플레이 분야의 특허경쟁력 강화를 위하여, 산업계와 특허청 간의 소통과 협력의 일환으로『IP Together』행사를 정기적으로 개최해 왔으며, ‘개정 특허법 설명회’ 등을 통해 관련 정보를 지속적으로 제공해 나갈 계획이다.

한편, 유비리서치가 발간한 ‘AR과 VR용 디스플레이 시장 보고서’에 따르면 AR과 VR용 OLED는 2017년 260만개 출하되어 52%의 시장 점유율을 차지할 것으로 예상하였으며, 2021년에는 5,200만개 출하되어 80%의 시장 점유율을 차지할 것으로 전망하였다.

 

<AR과 VR용 디스플레이 타입별 출하량 전망, 출처: 유비리서치>

‘OLED display’ selected by virtual (VR) · Augmented Reality (AR)

By adopting OLED display in virtual and augmented reality devices, which are leading the fourth industrial revolution in recent years, users can experience more realistic and lively images with faster response time, richer color and higher contrast ratio comparing to LCD.
OLED displays for virtual and augmented reality have been widely used in all industries including games, advertising, and education, and related applications have recently been actively pursued.

According to the Korean Intellectual Property Office (KIPO), the filing of OLED display for virtual and augmented reality is on an increasing trend each year, in particular, the number of related applications has greatly increased over the last 3 years.

<OLED display application trend for virtual and augmented reality, Source: Korean Intellectual Property Office>

According to the recent filing status by year, there are 240 applications in 2014, 263 in 2015, and 439 in 2016, and applications for OLED display technologies for virtual and augmented reality have increased rapidly from 2014.

The reason for the recent increase in applications for virtual and augmented reality OLED display fields is that the development of various conditions such as resolution, response time, usability, comfort, and price is required as a preliminary task for popularization of virtual and augmented reality devices and OLED displays can realize realistic images and are easy to design with flexibility, which is why they can meet these needs much better than existing LCDs.

Also, given the prospect that the virtual and augmented reality market will increase to about $ 80 billion by 2020, OLED displays suitable for virtual and augmented reality devices are being developed in various forms such as flexible, rollable, bendable, and stretchable displays, and it is expected that applications for OLED display technology for virtual and augmented reality will continue to increase accordingly.

For the filing status of OLED display technology for virtual and augmented reality (2007 ~ 2016),  there are 774 cases (60%) of large companies, 142 cases (11%) of medium and small-sized companies, 72 cases (6%) of universities and research institutes, 70 individual cases (5%)  237 foreigner cases (18%).

By major application companies, 465 cases of LG Electronics, 216 cases of Samsung Electronics, 51 cases of Microsoft Corporation, 29 cases of Samsung Display, 20 cases of SK Planet, 17 cases of Qualcomm, 17 cases of LG Display, It can be seen that related technology is dominated by domestic companies.

As for the status of OLED display application field for virtual and augmented reality applications, there are 426 cases of personal entertainment (game, theme park, experience), 169 cases of defense (war simulation, weapons development, fighter pilot), 141 cases of advertisement, 131 cases of medical treatment (3D simulation, virtual endoscopy, simulation), 123 cases of healthcare, 117 movies, etc., indicating that OLED display technologies for virtual and augmented reality are most actively used in the game and defense industries.

“OLED displays, which are developed mainly for personal use products such as TVs and mobile phones, are expected to expand into new industries as well as virtual and augmented reality based on their superior image presentation capabilities,” said Kim Jong-Chan, head of the screening team in the Korean Intellectual Property Office (KIPO). In addition, we expect to see increased applications related to technologies to address performance improvement challenges, such as extending the life of OLED displays and extending the operating temperature range. “.
In order to strengthen the patent competitiveness of OLED display field, KIPO has regularly held “IP Together” event as part of communication and cooperation between industry and patent office, and will continue to provide related information through the “Revised Patent Law Seminar”.

On the other hand, according to the ‘Display Market Report for AR and VR’ published by UBi Research, OLED for AR and VR are expected to be shipped by 2.6 million units in 2017, accounting for 52% of the market share and 52 million units in 2021 accounting for 80% of the market share.

<Shipment forecast by display type for AR and VR, Source: UBI Research>