SID 2015 Archives

HUD and HMD Meet Virtual Reality and Soar

2015年 8月 10日/0 コメント/カテゴリ: ディスプレイ, 技術 /作成者: OLEDNET

At SID 2015 Review Workshop held in Konkuk University on July 31, Inha University’s Associate Professor Jae-Hyeung Park announced that interest in HUD (head-up display) and HMD (head-mounted display) increased at SID 2015.

HUD signifies technology that provides diverse information for the driver beyond the role of a front glass that simply allows the outside to be viewed and provides protection. Through HUD, drivers can grasp vehicular and destination information without having to take eyes off the road. At this juncture, AR (augmented reality) HUD is more than a simple display as it recognize the user’s movements and applies it to the display.

In SID 2015 paper, Japan’s Ricoh termed the device that self-intervenes in the vehicular operation as ADAS (Advanced Driving Assistance System) and announced that the information from the device applied to HUD will be able to help the user’s recognition and decision making. It was also added that improved AR can be realized when the contrast range is increased to be equal to reality and reiterated and the distance from the virtual image is 5m.

HMD, as a head-mounted device, provides differentiated feelings of immersion compared to other displays. Due to the increased realism from the wide viewing angle, HMD was widely used as an entertainment display, but with the recent increased interest in AR, it is receiving much spotlight as an AR display device.

At SID 2015, the West Saxon University of Applied Sciences of Zwickau revealed an HMD device that actualizes AR naturally by changing the distance where image is shown according to the use by adjusting the focal distance. Zhejiang University’s college of Optical Science and Engineering used method of showing hologram to each user’s eyes using the light field concept that realizes the light strength to all directions from all points in 3D and produced improved AR.

Park explained that with SID 2015 as a starting point, the AR related HMD and HUD interest and research will increases greatly and that the trend will continue in future.

Samsung Electronics released HMD device Samsung Gear VR that can be used by plugging in to Galaxy S6 or Galaxy S6 Edge. Oculus VR and Sony Computer Entertainment each revealed OLED applied VR headset Oculus Rift and Project Morpheus, and scheduled release regular product in Q1 and H1 of 2016 respectively. Korea’s HLB released AproVIEW S2 which used virtual image distance actualization method, a first for HUD.

Inha University’s Associate Professor Jae-Hyeung Park at SID 2015 Review Workshop

Korea, China, and Japan’s OLED TV Alliance to Boost the Market

2015年 6月 19日/0 コメント/カテゴリ: 市場 /作成者: OLEDNET

Korean companies had been leading the OLED TV industry. Before SID 2015 (31 May – 5 June), LG Display and Samsung Display had been the only companies to reveal 4K OLED panels, and until now, LG Electronics has been the only company to sell 4K OLED TV in large quantity. In terms of OLED TV market, despite OLED’s superior characteristics compared to LCD regarding contrast ratio, high viewing angle, fast response time, and thinness, the market share has been limited mostly due to its relative high price. However, this is expected to change soon.

LG Electronics has been pushing for OLED TV alliance and corporation with Chinese and Japanese companies. As a result, Chinese and Japanese companies resolved to jump into OLED TV market from the second half of 2015. Japan’s Panasonic and Sony are expected to release OLED TV for the first time later this year. China’s Skyworth, Changhong, Konka, and Hisense are expected begin sales from this fall.

Consequently, the number of set companies producing 4K OLED TVs will increase to 7 by the end of 2015. LG Display, the only company that can mass produce OLED panel with 4K resolution, is planning to increase production by 4 times this summer to supply these new to OLED TV set companies.

As mentioned above, until SID 2015, LG Display and Samsung Display had been the only companies which showed 4K OLED panels, and with LG Display being the sole company able to mass produce 4K OLED panels. However, in SID 2015, AUO showed their own 4K OLED panel during an author interview session, and CSOT and BOE presented paper on 4K resolution OLED panel. This signifies they possess technology needed for OLED panel production, and with proper investment they can begin mass production.

Soon LG Display will no longer be the lone supplier of OLED panels contributing toward increase in shipment of OLED panels and OLED TVs. This will naturally lead to lower cost for consumers and energize OLED TV market.

Next Generation Display Requires Next Generation Ecosystem

2015年 6月 17日/0 コメント/カテゴリ: ディスプレイ /作成者: OLEDNET

It seems like new milestones are reached in the display industry every month. From a consumer’s point of view, it was not that long ago that HD (high definition) sets entered the market and revolutionized the picture screen. However, now next generation display with even higher resolution, UHD (ultra high definition) are being actively developed. 4K resolution sets, LCD and OLED, are already on the market. 8K panels have been part of exhibitions for a while now, and the world’s first 10K 82inch LCD panel was revealed in SID 2015 (31 May – 5 June).

However, in order to move forward to having the next generation of displays in consumer sets, the whole ecosystem of surrounding industries also has to evolve together.

As mentioned above, 4K sets, as well as 4K recording devices, are already commercially available. The 4K content is, unfortunately, still quite restricted at present. However, streaming and subscription services provide or plan to provide increasing amount of UHD content in near future, and UK’s BT is also launching an UHD box to host Europe’s first 4K TV channel.

Another important part of the ecosystem is connectivity. For over a decade, HDMI (high-definition multimedia interface) has been the favored connection for home entertainment systems and on HDTVs, as well as some PCs and monitors. However, if the interconnect development does not match the capability of the set or the content, then the intended display quality cannot be met. To cope with this, HDMI 2.0 which can handle 4K was released. DisplayPort, another interface standard, can also support 4K, but it also provides greater color depth, a more robust and stable AV link. DisplayPort is enabled to work over the new USB-C connector, and an 8K enabled version will be released this year.

It is not enough for one or two particular sectors of an ecosystem to evolve to lift an entire industry to the next generation. For a healthy and efficient market to be formed, agreed upon objectives, compromises, specifications, and schedules have to be in accord. VESA (Video Electronics Standards Association) is an international non-profit corporation that facilitates this, as is the recently established UHD Alliance. At SID 2015, a VESA representative explained that “for the industry as a whole to be effective and successful commercially, cooperation between businesses of all sectors, including competitors, is crucial”. This can only benefit consumers and businesses alike.

Whether the display market will be led by LCD or OLED, it is certain that the next generation display requires a next generation ecosystem.

Samsung Display’s SUHD TV, WIS 2015

[SID 2015] OLED’s Endless Evolution. SEL Reveals 8K Foldable AMOLED Panel

2015年 6月 16日/0 コメント/カテゴリ: Oled Video /作成者: OLEDNET

During the author interview on 3 June, first day of SID 2015 Symposium, Japan’s SEL (Semiconductor Energy Laboratory) revealed 13.5 inch 8K foldable AMOLED panel and drew most attention in the room. During the last year’s SID, SEL showcased OLED’s most evolved product at the time with 5.9 inch foldable AMOLED panel and 13.3 inch 8K AMOLED panel.

The 13.5 inch 8K foldable AMOLED panel that was shown this year is a product that combined last year’s foldable and 8K technology. It utilized RGB laminated white OLED, RGB color filter, and top emission structure. Additionally, 664ppi was actualized through 3Tr+1C/Cell structure and external correction method.

[SID 2015] AUO’s New RGBY Pixel Structure, Can It Be an Answer for Low-Powered OLED?

2015年 6月 10日/0 コメント/カテゴリ: ディスプレイ, 技術 /作成者: OLEDNET

Display consumes most power out of smartphone battery usage. This means that low-powered display is most important in lengthening the smartphone’s usage time.

AMOLED panel is a self-illuminating device driven by each RGB subpixels, and theoretically power consumption should be much lower than LCD’s which requires BLU (back light unit) to be constantly lit. However, as OLED materials’ performance, particularly blue, is not sufficient the power consumption falls short of expectation.

In SID 2015, AUO gave a speech on new RGBY pixel structure attempting to solve the power consumption issue. AUO applied PSA (power saving algorithm) and SPR (sub pixel rendering) of RGBY method, not RGBG structure’s pentile method of existing FMM RGB mechanism, and reported that this showed higher definition and lower power consumption compared to the pentile method RGB applied for high resolution. Particularly it was shown that it can be a key technology for low-powered AMOLED panel through HD 4.65inch (317ppi) panel demo; the power consumption of yellow sub pixel (efficiency 80-120 cd/A) was reduced by 16-20% in comparison to existing RGB method.

Dr. Meng-Ting Lee of AUO told the audience yellow sub pixel application improves high resolution, high definition, low power consumption, and panel’s lifetime simultaneously and that AUO’s RGBY SPR and PSA technology can become key technology for AMOLED panel for mobile device.

AUO’s RGBY Pixel Structure, SID 2015

Comparison of Power Consumption Between RGB and RGBY

[SID 2015] High Resolution OLED for Commercial Display Too! SEL Reveals 81inch Multi OLED Display

2015年 6月 9日/0 コメント/カテゴリ: ディスプレイ, 展示 /作成者: OLEDNET

Commercial display is a display installed in public areas. With the advantage of being able to deliver various information without being restricted to a place or time, it is becoming a new display market.

In order to lead increasingly expanding commercial display market, key panel companies are leaning toward high resolution and large size panel exhibitions. Recently released commercial displays have enlarged the size by attaching small LCD panels in a tile style creating bezel between panels. In LCD sector, commercial display products with minimized bezel are being developed.

However, 8K ultra high resolution commercial display has been produced without bezel through OLED. In SID 2015, SEL revealed world’s largest 81inch 8K OLED multi display that was produced by combining 36 13.5inch 8K flexible AMOLED panels.

The key technology is transparent sections of right and bottom edges of the panel. The FPC and scan driver sections of each panel are overlapped with corners of transparent edges (see below diagram).

Daiki Nakamura of SEL revealed that commercial displays of various sizes and shapes can be produced using flexible AMOLED panel and as it is suitable for applications on columns, commercial display can be a new market for OLED.

SEL had previously exhibited 27inch 8K multi OLED display using 4 13.5 inch 8K flexible OLED panels in Display Innovation 2014.

SEL’s 81inch 8K Multi OLED Display, SID 2015

[SID 2015] Chinese LCD’s Continuous Evolution. OLED, What To Do?

2015年 6月 7日/0 コメント/カテゴリ: ディスプレイ, 展示 /作成者: OLEDNET

LCD technology of Chinese companies is continually evolving. In SID 2015, BOE exhibited world’s largest 110inch 8K and world’s first 82inch 10K LCD panels. CSOT drew much attention with its world’s largest 110inch UHD curved LCD TV. By exhibiting ultra high resolution and large size LCD panel ahead of Korean and Japanese panel companies, CSOT aptly demonstrated that Chinese companies have caught up to Korean and Japanese technology skills.

BOE presented NTSC 99% 27inch QHD LCD panel, and CSOT showed NTSC 118% 55inch UHD LCD panel. Particularly, CSOT exhibited 4mm thick 32inch FHD LCD TV and 5.5 mm thick 4K curved LCD panel; this showed that LCD is able to catch up to OLED’s thinness and color gamut advantages. Thus, with LCD’s continuous new technology development and price competitiveness, LCD and OLED’s leadership competition will once again heat up in next generation display’

The current large area TV market is led by LCD and OLED is slowly expanding the market starting with premium TV. Even in premium market, with price competitiveness LCD is one step ahead with QD film applied LCD TV. Therefore, the technology development of LCD that is catching up to OLED’s advantages is expected to be a hurdle for OLED’s market opening.

Although LCD’s color gamut, thickness, contrast ratio, and response time is being continually improved and can approach to OLED’s level but cannot be equal to OLED in all areas. For example, if the thickness is reduced in LCD, the QD film application needed for increased color gamut is difficult. Even if panel with many positive traits altogether is developed, it is expected to take much time giving OLED chance to drop the price to LCD level. Therefore, reducing OLED panel’s price by OLED’s active investment and yield achievement is analyzed to be an essential condition for next generation display leadership.

[SID 2015] OLED’s Endless Evolution. SEL Reveals 8K Foldable AMOLED Panel

2015年 6月 5日/0 コメント/カテゴリ: ディスプレイ, 展示 /作成者: OLEDNET

During the author interview on 3 June, first day of SID 2015 Symposium, Japan’s SEL (Semiconductor Energy Laboratory) revealed 13.5 inch 8K foldable AMOLED panel and drew most attention in the room. During the last year’s SID, SEL showcased OLED’s most evolved product at the time with 5.9 inch foldable AMOLED panel and 13.3 inch 8K AMOLED panel.

The 13.5 inch 8K foldable AMOLED panel that was shown this year is a product that combined last year’s foldable and 8K technology. It utilized RGB laminated white OLED, RGB color filter, and top emission structure. Additionally, 664ppi was actualized through 3Tr+1C/Cell structure and external correction method.

[SID2015] What is the Answer for Flexible & Transparent with Excellent Image Quality?

2015年 6月 5日/0 コメント/カテゴリ: ディスプレイ, 展示 /作成者: OLEDNET

In SID 2015 Display Week (31 May – 5 June), LG Display’s CTO In Byeong Kang gave a keynote speech. He explained that future display in everyday lives will be actively applied to home, office, street, and mobile device areas through various applications including window, ceiling, mirror, kitchen, automotive, desk, commercial, and wearables. He added that OLED will be the answer to key technology of flexible display (curved, rolling, and folding), large-area transparent, and excellent image quality.

Key issues of flexible are bending radius and reliability. Kang emphasized that in order to reduce the bending radius, thinner substrate is needed, and to improve reliability, new material, components development, and internal and external shock mechanism research is important. He mentioned that although OLED is good for transparent’s transparency, light control, and reflectivity as key technology, LCD and LED display also have advantages of their own in transparent display realization. Kang concluded the presentation with the emphasis on the need of expansion into automotive, watch, architecture, and furniture companies from existing panel, material, and components companies’ ecosystem for commercialization of flexible and transparent display.

LG Display is currently mass producing plastic OLED panel for smart watch, and aiming for 80% automotive display market occupation in 2018 with approx. US$ 2,000,000,000,000 of revenue. In SID 2015, LG Display exhibited 18 inch rollable OLED panel, and 12.3 inch automotive OLED panel. Through the OLED and ecosystem’s expansion, it is anticipated LG Display will lead flexible and transparent display market following OLED TV.

投稿