Please note, in order to attend the pre-conference workshop, you must be registered for the 2019 Quantum Dots Forum + Workshop*
Dr. Eric Virey | Senior Market & Technology Analyst of Yole Développement
MicroLED displays could potentially match or exceed OLED performance in all critical attributes such as brightness, contrast, color gamut, refresh rate, viewing angle, ruggedness and durability, resolution and pixel density, lifetime, power consumption etc. Development started in the early 2000’s but microLED got its first public exposure when Sony presented a 55” microLED TV prototype at the 2012 CES. The hype around the technology grew further when Apple acquired microLED startup Luxvue in 2014. Since then, investments and the number of companies involved have skyrocketed. So how long will we have to wait until we see the first consumer applications? The science is here, but microLED is an inherently complex technology with cost drivers very different from those of incumbents OLED and LCD. This presentation will provide an update on the status of the microLED industry and remaining technology and supply chain bottlenecks with a focus on color generation and conversion aspects.
Dr. Jennifer Colegrove | CEO and Principal Analyst of Touch Display Research, Inc.
Touch Display Research forecasts that the Quantum dot could improve Liquid Crystal Display (LCD) dramatically in terms of color gamut, color accuracy and reducing power consumption. This is one of the biggest breakthrough technologies for LCD in recent several years. Dr. Colegrove is the first industry analyst to publish a comprehensive quantum dot report since 2013. Dr. Colegrove will provide an update on the current QD market and the various opportunities for those working on QD solutions. Micro & mini LED displays are gaining momentum currently, and they could disrupt the whole display industry due to their benefits of high brightness, wide color gamut, low power consumption, fast response time, etc. There are billion dollar opportunities for LED manufacturers, semiconductor supplier, equipment manufacturers, transparent conductor suppliers, and display companies. Dr. Colegrove will discuss the difference of micro and mini LED, and 15 methods to fabricate micro and mini LED displays. Dr. Colegrove will also provide the market forecast of the micro & mini LED displays from 2019 to 2028. At last, Dr. Colegrove will discuss the combination of quantum dot with micro & mini LED.
Julian Osinski, Ph.D. | Principal Consultant of Opticalogic Advisors
For purposes of obtaining full-color microLED displays, quantum dots (QDs) are viewed as one of the best options for color-converting blue-emitting GaN microLEDs to obtain the red and green subpixels. Due to the small size (<10 microns) of the microLEDs, however, only a thin layer of QD-containing film can be used to avoid excessive lateral losses, ideally using a thickness that is less than the width of the LED. There have been some prototype demonstrations of this approach, but to achieve full color conversion in films as thin as 5 microns or even less, a patterned polymer film containing a high fraction of QDs is required, pushing the limits of what is possible. To quantify the requirements of various QD designs at the industry’s disposal, we have used published values of extinction coefficients to calculate the loading requirements for popular CdSe/CdS, InP/ZnSe/ZnS and perovskite QDs dispersed in polymer films to obtain the highest possible blue absorption in the thinnest possible layer. We find that for material systems exhibiting a cubic dependence of extinction on QD size, or equivalently on QD volume, the loading requirement is independent of QD size. Perovskites are found to be able to achieve a desirable optical density of 2 or more when dispersed in a film of 5 microns thick with a volume loading of under 20%, but materials containing a non-absorbing or weakly absorbing shell such as InP/ZnSe/ZnS can approach the close-packed limit in a 5-micron film at an optical density of much less than 2. We will summarize the findings and suggest the best solutions for obtaining thin-film color conversion of microLEDs using QDs.
Reza Chaji | Founder & CEO of VueReal
VueReal’s unique approach toward QD integration can address some of the challenges in QD technology and improve the display and system development. During these talks, we will review the major challenges and how VueReal has developed solutions that can overcome them.
Clive Beech | Micro-LED Applications Director of Plessey Semiconductors Limited
Plessey’s monolithic micro-LED display technology is described and quantum dot colour conversion of the native blue micro-LED emitters is considered. With typical pixel sizes of eight microns and sub-pixels at approximately four micron the application of quantum dot technology at this scale presents challenges of fabrication, conversion efficiency, stability under intense photo flux and environmental stability. This paper discusses possible approaches to solving these challenges.
Presentation from glō
Using our patented room-temperature wafer transfer technology, millions of RGB microLEDs can be transferred with high yields, bonded to active backplanes made out of Si, glass or flexible substrate materials.