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LG Display, Already completed development of OLEDoS-applied prototype for VR

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LG Display presenting OLEDoS at OLED School

LG Display presenting OLEDoS at OLED School

At the 19th OLED School held at Sookmyung Women’s University from February 9th to 10th, Senior Research Fellow Yoo Chung-geun of LG Display announced, “We are developing a set for VR using OLEDoS, and some of the prototypes have already been developed.”

On this day, Research Fellow Choong-Keun Yoo gave a presentation on ‘The Future of OLED Display, Metaverse and Display’. Researcher Yu explained the specifications and technologies required for micro displays such as metaverse and VR/AR, and said, “In general VR devices, luminance of 10,000 nits or more and AR devices require luminance of 100,000 nits or more, but it is difficult to apply this to OLEDoS. Currently, the display for AR developed by LG Display has achieved a brightness of over 7,000 nits and a resolution of 3,500 ppi.”

LG Display OLEDoS Manufacturing Process

LG Display OLEDoS Manufacturing Process

3500ppi or higher OLEDoS being developed by LG Display requires ultra-high-definition patterns, so Si-wafer backplane and WOLED + CoE technology must be applied, so cooperation with semiconductor foundries is essential. Research Fellow Yu explained, “For high-resolution OLEDoS, semiconductor foundries have no choice but to make display backplanes through wafers.”

Finally, researcher Yoo said, “We are developing a set for VR using OLEDoS, and it is planned to be released soon. We are developing products for major IT companies such as Apple, Google, and Meta, and some prototypes have already been developed.” He continued, “It takes more time to supply products that meet consumer needs, such as brightness of 10,000 nits or more, but it is possible to produce better VR devices even with 3500ppi class OLEDoS, which has now been developed.” When asked if the next actual product supply time was right before September, he replied, “There is nothing planned yet.”

▶ AMOLED Manufacturing Process Report Ver.5 Sample Download

Can VR replace TVs and Monitors?

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VR devices have been on the rise since 2016 and were expected to be an important factor in IT business, but have not yet made a big impact. At CES 2016, Intel exhibited applications that enable creative activities such as education and art. In 2017, Samsung presented games and movies that can be felt with the body in 4D form at the IFA VR experiment zone.

VR features excellent immersion and presence. A 1-inch display can look like a 60-inch display. The display that provides information uses micro-display, but LCoS (liquid crystal on silicon) has a slow response speed, poor color, and low contrast ratio. So the trend is changing to OLEDoS (OLED on silicon). Sony is making its own micro OLED and Panasonic is working with US Kopin to make VR.
Recently, VR devices are preparing to replace monitors. If it is made in high resolution, about 10 screens can be displayed on each VR monitor screen. In the future, the monitor market will change to the VR market. VR can emerge as the best dark horse in the IT market. VR may possibly also replace TVs. A head speaker with a much better three-dimensional effect is essential. There may also be changes in the movie theaters as a VR device might provide a 60-inch screen and provide a high sense of immersion into the film for movie-goers.
Micro OLED composition consists of TFT designed on a silicon wafer and OLED is formed on it. LGD’s WOLED method is used for OLED. The RGB method requires a fine metal mask, but the AP system is preparing a mask capable of 2000ppi or more using a laser. Because WOLED uses a color filter, there is a loss of about 10%. RGB may be more advantageous in terms of luminance, but for commercialization, WOLED resolution can be much higher. Since it has been developed for a long time, WOLED is expected to be applied. Applications include military, medical, industrial, viewfinder, smart glasses, and the like.

Recently, Apple requested LG Display and Samsung Display to prepare Micro OLED. LG Display placed an order for the Sunic System evaporator in June and is moving quickly.
Samsung Electronics also has a request for VR. In 2025, it can be seen that LG Display and Samsung Display can produce many types of Micro OLED. We expect to see Apple’s VR devices around 2024.

Related Report : 2022 Micro-display REPORT