投稿

車載用OLED、車載用ディスプレイ市場をリードする

Audiは先日5月に電気自動車SUV「E-Tron Quattro(E-トロン クワトロ)」のサイドミラーをカメラ化し、内部にOLEDディスプレイを搭載することで、空気抵抗係数を0.28 cdまで引き下げることができたと発表した。これによって、燃料効率を向上させるたけでなく、死角を無くして安全に運転することもできるようになる。

<2015年に公開されたAudi E-tronのインテリアコンセプト写真、参考:insideevs.com>

さらに、インテリアディスプレイには全てOLEDが採用された。OLEDはLCDに比べ、高いコントラスト比と速い反応速度、広い視野角を持ち、高い視認性を実現することができることから、車載用ディスプレイに適合するという評価を受けている。

自動車部品サプライヤー(部品製造業者)のContinental corporationも自社ホームページで、2枚のOLEDを搭載したミラーレス自動車の様々な利点を紹介し、暗い状況や雨天時にも快適な視野を提供することができると明らかにしたことがある。

一方、Samsung DisplayやLG Displayのみならず、中国のパネルメーカーも市場攻略に向け、多彩なOLED製品を披露している。

Samsung Displayは先日5月に開催されたSID 2018で、OLEDを活用して画面を様々なサイズに調整できるRollable CID(Center Information Display)と12.4型サイズのCurved CIDを展示した。

<OLEDを採用したSamsung Displayの12.4型Curved CID>

6.22型サイズのUnbreakable steering wheel OLEDと4.94型サイズのTransparent OLEDを採用したHUD(Head Up Display)など、OLEDを活用した様々な自動車用製品を紹介した。

BOEもSID 2018で12.3型車載用フレキシブルOLEDを、またTianmaとTrulyは2018年1月に開催されたLighting Japan 2018で車載用リジッドOLEDを展示した。

<BOEの12.3型フレキシブル車載用OLED>

車載用ディスプレイはモバイル機器やTVと比較し、より多くのカスタマイズが必要なため、高付加価値の創造が期待される産業として注目を集めている。

Samsung Electronicsは、6月初にシンガポールで開いた投資家フォーラムで、車載用OLEDパネル事業を未来事業として強調し、「今年10万枚だった車載電装用OLEDパネルは、2020年に100万枚、2022年に300万枚にまで増える」と展望を示したことがある。

サムスンディスプレイ主席研究員「VR•ARが3Dテレビのようになる?」

サムスンディスプレイのイ・ジョンソ主席研究員が基調講演をしている。

Hyunjoo Kang / jjoo@olednet.com

サムスンディスプレイのイ・ジョンソ主席研究員は、「VR•AR市場は、過去3Dテレビ市場とは異なり、肯定的であるという観点を提示した。

8月23日、済州島済州ICCで開催された「インダストリアル・フォーラムで、イ・ジョンソ主席研究員は、「VR/ARのためのディスプレイ技術」というタイトルの基調講演で、VR•AR市場が過去3Dテレビ市場とおなじような道を歩くであろうと一角の懸念にについて言及した。

イ・ジョンソ主席研究員は、「3Dテレビ市場は、コンテンツ生産および3D転換技術の限界、3Dディスプレイの低品質、標準の不在などで活性化されなかった」とし、「しかし、VR・AR市場は、ポケモンGO、ホロレンズなど、すでにコンテンツとハードウェアが登場しており、数多くのメーカーがこの分野に参加している」と述べた。

Apple、マイクロソフト、インテル、facebookなど、屈指の企業がVR・AR分野のために積極的に投資しており、生態系が形成されているというのが彼の説明である。

イ研究員は、ゴールドマン・サックスの資料を引用して、「VR・AR市場は、2025年までに850億ドルの規模を形成するであろう」と強調した。

イ研究員は、さらにバーチャルリアリティ(VR)と拡張現実(AR)分野に有用な有機ELの技術的特徴を説明した。特に透明有機ELが拡張現実(AR)技術を具現するための核心ソリューションであると強調した。

彼はARについて「実際、物理的環境やリアルタイム画面に加わるデジタル経験である」と説明し、「透明ディスプレイがこれを具現してくれる」と述べた。

有機ELは、LCDに比べて透過率が高く、透明ディスプレイを作るための最適なソリューションとして考えられている。この研究は、「透明有機ELの具現のためには、高い透過率と低い抵抗のカソード(cathode)が必要であり、基板(substrate)が熱によく耐え、フレキシブルが可能でなければならない」と説明した。

また、透明ディスプレイの透明領域にメタル類を適用すると、ミラー(mirror)ディスプレイで具現され、鏡のような形としてもARを楽しむことができる。そのためには、高い反射率と高度の色域(high color gamut)が必要であるというのがイ・ジョンソ主席研究員の説明である。

Sung-Chul Kim, Samsung Display’s CTO, What is Needed for OLED To Enter New Areas?

Sung-Chul Kim, Samsung Display’s CTO, at the 1st OLED Frontier Forum (Jan 28) gave a presentation ‘AMOLED Technical Issue and Future’ and discussed OLED technological issues of the past and present.

 

Kim pointed out the fact that glass substrate is not always necessary for OLED as the most different factor compared to LCD, and emphasized flexible OLED where plastic substrate is used. Kim reported that flexible OLED issues include window’s durability and coating, touch panel’s electrode materials and flexibility, reduction of number of encapsulation layers and flexibility, and backplane’s low stress structure and OTFT application. He revealed that developing spherical stretchable display, which the user can zoom in, is also included in the product roadmap.

 

Regarding transparent/mirror display, Kim announced that this is the direction that OLED should head toward and added that layout design development suitable for different application areas is needed. Specifically, the transparent display should be developed to increase the transmittance area and decrease the TFT area, and the mirror display to optimize the ratio between the total reflection and half-reflection areas.

 

Additionally, in order to produce high resolution OLED, Kim mentioned that innovation in terms of pixel operation and backplane structure is needed. He emphasized compensation circuit and that whether high resolution display can be manufactured cheaply and using simple structure is the key.

 

Kim discussed wall display, IoT, educational display, etc. as the new applications which will become important in future. Particularly, mentioning the automotive display area, Kim explained that for OLED to enter these new areas, plastic materials suitable for each applications and technology that can correctly process this are required. In order for this type of research development to be carried out smoothly, Kim added that cooperation between the academia and industry is necessary.

 

삼성기사

[CES 2016] Big Changes in LG Display

On January 6 (local time), LG Display held a press conference with key board members in attendance including CEO Sang-Beom Han, CTO In-Byeong Kang, and head of marketing Young-Kwon Song.

 

lgd1

 

At this conference, unlike previously, Han conveyed strong determination and announced LG Display will invest in future large area display with OLED. This was a conviction never seen before.

 

The evidence of the confidence could be read at the exclusive exhibition. OLED TV achieved 800 nit, 150% higher than UHD Alliance’s standard of 540 nit.

 

lgd2

 

With transparent OLED, LG Display reached leading specs. The WRGB OLED structured transparent OLED has 40% transmittance and 600 nit of brightness through the application of the 800 nit OLED technology.

 

lgd3

 

Flexible OLED also was significantly different from last year. In 2015, the comparison between LG’s OLED and LCD for automotive dashboard display showed OLED to be lacking in brightness. However, this year’s exhibition showed OLED panel to have similar level of brightness as LCD and exceeding LCD’s spec with deeper black.

 

lgd4

 

The exhibition showed rapid development of LG Display’s OLED technology.

[2015 OLED Evaluation Seminar] How can OLED Emitting Materials, Components and Other Materials Markets Survive?

By Choong Hoon Yi

 

At 2015 OLED Evaluation Seminar (December 4) hosted by UBI Research, Sung-Kee Kang, DS Hi-Metal’s CSO, reported that OLED display market has to expand through OLED TV and new applications in order for OLED emitting materials companies to grow.

 

Presenting under the title of ‘OLED Organic Material Technology, Industry Trend’, Kang introduced the current OLED emitting material value chain. He explained that within OLED emitting materials market, there are too many players considering the current volume and overall OLED display market expansion is a necessity. However, he added that for OLED display to compete against LCD display, OLED TV market has to expand successfully, and new application that utilizes OLED’s characteristics is needed.

 

In order to expand the market, development of OLED emitting materials and other materials is urgently in demand that meet the required conditions. Kang emphasized that at present new technology seeds promotion for the next OLED is needed as well as development of OLED emitting materials, and other flexible/transparent related materials with new functions.

 

Considering LG’s active OLED TV marketing, Apple’s interest in OLED panel application, and possibility for Samsung to apply AMOLED to all models among others, OLED market is anticipated to rapidly grow. Together with this, the industries of OLED emitting material and component/other materials with new functions are also expected to considerably grow.

Planar Aims for Transparent OLED Product Mass Production in Feb 2016

On November 30 (local time), a US based display production company Planar held an online presentation titled ‘Planar Look Thru OLED Transparent Display Webinar’, discussing transparent display traits and disclosing specifications for products which are estimated to be mass produced from February 2016.

 

Transparent display is defined as a display with see-through screen showing objects behind the display as well as the display contents. Recently, it is receiving much attention as a technology with high potential for diverse applications expanding existing display industry.

 

Planar explained that unlike the existing display, transparent display pixels are separated into transparent and emitting areas with RGB subpixels located in the emitting area. Planar clarified that what is black on general display becomes see-through and white becomes opaque.

 

Transparent display’s performance is decided by several factors such as transmittance, brightness, and color gamut. Regarding this, Planar revealed that the transmittance of transparent display is not fixed but can be affected by ambient light; brighter the surrounding environment, higher the transmittance. Additionally, viewers have tendency to perceive the display with higher color gamut as brighter than the actual brightness, and transparent display’s color gamut is therefore an important factor.

 

In early 2015, Planar revealed a 55inch transparent OLED display prototype. At present, Planar is receiving pre-order and aiming for mass production in February 2016. The company also reported basic specifications for the panel: 45% of transmittance, 100% color gamut, and Full HD (1,920×1,080) of resolution. The product also has 5 input sources: 4 HDMI terminals, and 1 display port.

 

During the webinar, Planar explained that 32 touch points using IR (infra-red) touch system installation is an option. Although this is less accurate than touch system using touch film, Planar explained that this was an unavoidable choice in order to increase the transmittance. They also added that they are continuing research for new touch system application.

 

The 55inch panel price starts from under USD 15,000 and Planar is currently receiving pre-order. Although there are many factors that affect transparent OLED’s lifetime, it was measured to be 20,000 hours at LT50. Answering the question on whether it is affected by UV light, Planar explained that it can be UV sensitive and the product was designed to be an indoor installation.

 

It is estimated that the transparent OLED panel used in the Planar’s product released is produced by Samsung Display as it has the same 45% transmittance, 1920×1080 resolution, and 400nit brightness.

 

Planar’s Transparent OLED Display to be Mass Produced  Source: Planar

Planar’s Transparent OLED Display to be Mass Produced Source: Planar

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