patent Archives ⋆ OLED

How far has QNED completed?

June 23, 2021/in Display, Focus on, Technology /by olednet

The reality of QNED (quantum dot nano-rod LED), which Samsung Display is preparing as a next-generation display, has become clear.

As a result of analyzing 160 patents applied by Samsung Display, it was confirmed that the structure constituting the QNED has already been completed, and that the only remaining task is to keep the number of nano-rod LEDs arranged in the light-emitting pixel constant.

As a result of classifying the contents of each patent according to the purpose of the application, a total of 39 types were found, with 49 cases related to device arrangement being the most. The following is 20 cases to improve the light efficiency.

The number of aligned nano-rod LEDs per pixel, which determines the yield and image quality characteristics of QNED, is determined by the distribution of LEDs in the ink, the number of LEDs injected into the pixel, and the alignment ratio of the injected LEDs.

If the distribution of the number of nano-rod LEDs per pixel is different, there is a change in the voltage applied to each pixel, resulting in a defect.

It has been confirmed that Samsung Display has already developed a method for making the number of nano-rod LEDs per pixel constant and an algorithm that can make the luminance uniform even when the number of nano-rod LEDs is different.

In the “QNED Technology Completeness Analysis” published this time, it was written as the contents of the previous report published through analysis of 94 patents and 66 newly added patents. It was analyzed and recorded.

In this report, QNED patent numbers, classification tables, and quantitative analysis data that have not been disclosed before are provided in Excel.

[iMiD 2017] OLEDON, Disclose plane source FMM deposition principle for 2250ppi OLED manufacturing

September 1, 2017/in Exhibition, Technology /by OLEDNET

Prof. Hwang Chang-Hoon, CEO of OLEDON, a venture laboratory of Dankook University, presented a plane source FMM deposition technology capable of implementing 2250 ppi at iMiD 2017 held on the 28th.

According to Prof. Hwang Chang-Hoon’s presentation, the plane source deposition technology developed by OLEDON differs from the existing organic material deposition method. The plane source FMM deposition technique is that the organic material is first deposited on the metal surface to form a donor film and then re-evaporate it to form an organic thin film on the substrate. Applying this technique, organic matter forms a vertical gas beam due to plane evaporation. (Source patent: 1012061620000 Republic of Korea)

The shadow distance when organics are deposited with a plane source developed by OLEDON is 0.38 μm – 0.59 μm. This is a level at which a 2250ppi device having a pattern size of 4 um can be manufactured.

Prof. Hwang Chang-Hoon explained ‘applying the plane source deposition technique reduces the incidence angle of the organic material and dramatically reduces the shadow caused by the mask’. In addition, ‘using a plane source, the perpendicular organic gas beam can form a completely zero incident angle, so theoretically, the shadow distance can be zero um’.

In addition, Prof. Hwang Chang-Hoon emphasized that ‘plane source deposition technology is essential for high-resolution shadow masks’.

For linear source FMMs currently in production, the shadow mask opening distance is 80 μm. As a result, the incidence angle of the organic material gas is inevitably large, making it difficult to produce a shadow mask having a high density pattern.

Prof. Hwang Chang-Hoon explained, ‘Using plane source deposition technology, shadow mask taping angle is 80 ° level’, and the distance between openings can be reduced to less than 20 μm so that plane source deposition techniques can solve the mask pattern density problems of linear sources’.

OLEDON is challenging fully shadow-free patterning conditions with plane source deposition technology, and plan to develop and install a plane source FMM evaporator capable of manufacturing 11K class micro OLED devices in cooperation with Prof. Jin Byung-Doo in Dankook University. (Reference: Homepage of OLEDON www.oledon.co.kr)

The opening density change of the shadow mask when the plane source FMM deposition technique is used

Meanwhile, OLEDON has 13 registered patents for plane source FMM deposition for mass production. Based on recent research results, they filed 7 new patents for mass production equipment in Korea and 3 applications are filed for PCT international application.

LG디스플레이 IP 담당 오정훈 상무, 한국지식재산협회장 선임 돼

August 18, 2016/in 미분류 /by OLEDNET

LGD IP 담당 오정훈 상무

강현주 / jjoo@olednet.com

LG디스플레이(대표이사 부회장 한상범, 韓相範 / www.lgdisplay.com)는 한국지식재산협회(KINPA, Korea Intellectual Property Association) 총회 결과 LG디스플레이 IP (Intellectual Property) 담당 오정훈 상무가 제 3대 회장으로 선임되었다고 18일 밝혔다.

한국지식재산협회는 기업의 지식재산 경쟁력 강화를 위해 2008년 설립된 우리나라의 대표적인 지식재산 민간단체로서 LG전자와 삼성전자 등 약 120여개 기업을 회원으로 두고 있다.

한국지식재산협회는 또한 각종 컨퍼런스 및 교육을 통해 지식재산의 중요성을 알리는데 앞장서는 한편, 지식재산 이슈의 대응방안 논의를 위해 회원사간 협력을 도모하고 있으며, 이를 통해 국가 지식재산 역량 강화에 기여하고 있다.

오정훈 신임 회장은 “한국지식재산협회가 지식재산 분야의 전문성을 보유한 독립적인 기업 협의체로서 활동 저변을 확대하고 성장할 수 있도록 최선을 다할 것”이라며 “특히, 대•중소기업간 협력을 통해서 유용한 지식재산 노하우의 공유 등 회원사에 실질적 혜택이 돌아갈 수 있도록 할 것”이라고 포부를 밝혔다.

UDC Acquires BASF’s OLED IP Portfolio for USD 96 Million…King of Materials Patents

June 30, 2016/in 미분류 /by OLEDNET

Source = UDC

Hyunjoo Kang / jjoo@olednet.com

On 28 June, Universal Display (UDC), dominating the patents within the OLED materials sector, announced that they acquired OLED related patents for approximately USD 96 million.

Most of the portfolio represent patents regarding phosphorescent OLED materials, including over 500 issues and pending patents around the world in 86 patent families. BASF’s OLED portfolio’s average lifetime is 10 years.

UDC is anticipating that this move, that allows them to have over 4,000 issued and pending patents, will help them develop blue emissive systems. As UDC has USD 395.7 million in cash, it should not be a problem financing this IP acquisition cost.

Korean OLED emitting materials companies are also focusing on this move; as the patent competitiveness could be said to sway OLED materials market, IP acquisition is important.

According to UBI Research, with this patent competitiveness UDC led the global OLED emitting materials market in 2015 for two consecutive years. Korean materials companies, including Duksan Neolux, are actively participating in improving their patent competitiveness to respond to UDC’s solid domination of the market.

In April, Professor Jun Yeob Lee (Chemical Engineering, Sungkyunkwan University) explained at a forum that UDC’s patents slightly diminished through litigation, the company still has wide claim that includes almost all of phosphorescent materials sector. He emphasized that UDC began to react through acquiring other patents, and that Korean companies should also search for other methods of response.

In 2015, BASF stopped OLED related research development.

UDC, 바스프 OLED 인광 재료 특허 9600만 달러에 인수…역시 재료계 특허제왕

June 30, 2016/in 미분류 /by OLEDNET

출처 = UDC

강현주 / jjoo@olednet.com

OLED 재료 업계의 특허 제왕으로 군림하고 있는 유니버셜디스플레이( UDC )가 바스프( BASF )의 OLED 관련 특허를 미화 약 9600만달러에 인수했다고 28일 발표했다.

이 특허 포트폴리오는 주로 OLED 인광 재료들에 대한 것으로, 이미 출원된 500개가 넘는 특허와 아직 출원전인 전세계 86개 분야 특허도 포함하고 있다. 바스프의 이 OLED 포트폴리오는 평균적으로 10년간 유효하다.

UDC는 이번 바스프 특허 인수를 통해 블루 발광 시스템을 개발하는 데 도움이 될 것으로 기대하고 있다. 이번 인수로 UDC는 4000개가 넘는 출원 특허와 대기중인 특허를 보유하게 된다. UDC는 미화 3억9570만달러의 현금을 가지고 있어 이번 IP 인수 비용을 충분히 감당할 수 있다.

이번 UDC의 행보에 한국의 OLED 발광재료 업체들도 이목이 집중된다. OLED 재료 시장은 특허 경쟁력이 좌우한다고 할만큼 IP 확보가 중요하기 때문이다.

실제로 유비산업리서치의 조사에 따르면 UDC는 이같은 특허 경쟁력을 앞세워 지난 2015년 전년에 이어 전세계 OLED 발광재료 시장에서 1위를 차지했다. 덕산네오룩스 등 한국의 재료 업체들은 UDC의 견고한 시장 선점에 맞서 특허경쟁력 확보에 적극적으로 나서고 있다.

성균관대학교 고분자 공학부 이준엽 교수는 지난 4월 열린 한 포럼에서 “UDC의 특허는 그동안 소송들을 거치며 다소 축소되긴 했지만 여전히 인광 재료쪽이 거의 다 포함되는 넓은 클레임을 가지고 있다”며 “UDC는 또 다른 특허들을 인수하는 등 대응에 나섰으며 한국 업체들도 이에 따른 대응 방법을 찾아야 한다”고 강조했다.

한편 바스프는 지난 2015년 OLED 관련 연구개발을 중단한 바 있다.

Apple, Eyes on OLED E-book? Patent Registered for Rollable Newsreader

May 10, 2016/in Set /by OLEDNET

Source = Apple registered patent OLED equipped device

Hyunjoo Kang / Reporter / jjoo@olednet.com

Is Apple eyeing the OLED e-book sector as well?

On 3 May, BidnessEtc reported that the United States Patent & Trademark Office granted a new patent to Apple regarding OLED equipped newsreader device.

It’s patent`s document shows that this rollable device has AMOLED panel on both sides, and as it is flexible it is easily portable. The device can be used for newspaper, magazine contests and advertisement, and can receive messages through wireless networks.

BidnessEtc reports that this shows there is a lack of suitable displays for newspapers and magazine contents.

Meanwhile, this company registered 56 patents in March including regarding AMOLED operation improving device and methods. Much attention is focused as Apple’s release of OLED equipped iPhone is almost confirmed. Apple’s continued moves with patents regarding OLED are expected to create more bustle for the OLED industry.

애플, OLED 전자책도 눈독?…돌돌마는 뉴스리더기 특허 등록

May 4, 2016/in 미분류 /by OLEDNET

애플이 미국 Patent & Trademark Office로부터 OLED 관련 특허를 등록했다. (출처= Apple )

강현주 기자 / jjoo@olednet.com

애플이 OLED 전자책 분야에도 눈독을 들이는 것일까?

애플이 미국 특허청(United States Patent & Trademark Office)으로부터 OLED 탑재 뉴스리더기 관련 특허를 등록했다고 BidnessEtc이 3일 보도했다.

이 뉴스리더기에 대한 애플의 특허문서를 살펴보면 이 기기는 돌돌말리는(rollable) AMOLED 패널이 앞뒤로 탑재됐으며 유연하게 모양이 변형되므로 휴대가 용이하다.

이 뉴스리더기는 신문이나 잡지의 뉴스 콘텐츠 및 광고 콘텐츠를 볼 수 있으며 무선 네트워크를 이용해 문자메시지를 전송 받을 수 있다.

애플이 OLED 뉴스리더기 관련 특허를 등록한 것은 그동안 신문이나 잡지 콘텐츠를 읽기에 적합한 디스플레이가 얼마나 없었는지를 말해준다고 BidnessEtc는 보도했다.

한편 애플은 지난 3월 56건의 특허를 한꺼번에 등록했으며 그 중에는 ‘AMOLED 구동 향상을 위한 디바이스와 방법에 관한 특허’도 포함이 돼 있다. 애플이 OLED 탑재 아이폰 출시하는 게 거의 확실시 되면서 주목되는 가운데, 애플의 잇따른 OLED 관련 특허 등록 행보에 OLED 업계는 더욱 들썩일 것으로 예상된다.

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