MicroLED technology is considered by many as the most promising next-gen display technology, enabling highly efficient and bright TVs, smartphones, laptops and more. MicroLED-Info, established in 2017, is the world's leading microLED industry portal - offering a range of services to the microLED industry, including a free publication, market reports and marketing and business-development services.
Chinese mobile phone manufacturer Tecno Mobile announced a new smart glasses product, called the Tecno AI Glasses Pro that utilize microLED microdisplays.
The company did not detail much, but we do know that the displays offers a 30-degrees FOV, and over 1,500 nits of brightness. It seems as if these displays are monochrome (green), and are likely produced by JBD.
We're happy to introduce the Fraunhofer IZM, a research institute that is a part of the Fraunhofer-Gesellschaft, that specializes in applied and industrial research in packaging technologies and integrating multifunctional electronics into systems. With over 400 employees across four departments, it provides expertise in microelectronics packaging from concept to reliability.
The Fraunhofer IZM's microLED project is led by Dr. Oppermann, IZM’s Deputy Head of Department and Dr. Manier, R&D project engineer. Dr. Opperman has led the "Fine Pitch Assembly and Interconnects" group at Fraunhofer IZM since 1999, focusing on flip chip, die attach, and wafer-level packaging for MEMS, RF, opto, and power applications. His innovations include AuSn soldering, transient liquid phase bonding, nanometal bonding, and Indium bonding. Dr. Manier has contributed to flip chip and die bonding technologies in MEMS, power electronics, and medical applications. He has been involved in European and industry projects, including chip-to-chip/substrate bonding and vacuum-tight MEMS sealing.
Dr. Oppermann and Dr. Manier recently finalized a techblick feasibility study into microLED massive parallel assembly and interconnection.
Fig 1. SEM imaging of assembled micro-display of Figure 1 with 3 different small die (RGB) soldered on target substrate
MicroLED-Connect and AR-Connect will host a two-day virtual conference on March 6-7, only three days from now. This exciting event brings you a curated agenda on MicroLED and AR/VR Display technologies from around the world, featuring speakers from Japan, Korea, Taiwan, Australia, Poland, France, Israel, Germany, Belgium, Canada and east, central and west USA!
The virtual 2-day conference will include over 25 exciting talks by leading microLED developers, AR/VR developers, supply chain companies and top-edge researchers. This will be an excellent opportunity to learn and connect with the microLED industry, on an easy to access virtual event. You can register here, with a yearly pass to MicroLED-Connect (with an option to also include entry into our September on-site event in Eindhoven, The Netherlands). Our members also gain access to past event recordings. We have arranged a remarkable agenda, which you can check below:
By: Dr. Tali Hurvitz, VP Research & Development & Noam Shapiro, VP Communications, InZiv
MicroLED technology is transforming the world of displays, from AR/VR devices to cutting-edge automotive applications. However, in order for microLED to mature both technologically and commercially, precise functional inspection continues to be essential. Photoluminescence (PL) and electroluminescence (EL) are two primary techniques for evaluating microLED functionality. PL testing measures light emitted from the microLED after excitation by a laser. This excitation mechanism causes a recombination across the entire junction (usually multiple quantum wells, depending on the excitation wavelength) which in turn leads to the emission of light. In this way, PL can measure certain basic properties of functionality.
IV (current-voltage) curve being measured during EL testing of a microLED chip
On the other hand, EL testing measures light emitted when voltage is applied to the LED, and in this case, the mechanism that activates the emission of light is the electrons and holes moving to the junction. Because electrons move much faster than holes, most electron-hole recombination—and thus light emission—occurs in the region of the junction where the holes are concentrated. This method of light excitation more accurately reflects real-world performance under operational conditions; the microLED display in the final electronic device will be activated via electric current and not via light.
Research has shown that EL is ultimately the superior method, and relying on PL alone, even while calibrating for inaccuracies, is an unreliable approach that often completely misidentifies defective LEDs as functional, and severely compromises measurement accuracy. Moreover, PL also often mischaracterizes the optical power and wavelength distribution across the wafer, failing to provide reliable testing results. We will briefly summarize below some of the research that has demonstrated the superiority of EL over PL for microLED testing and inspection.
Taiwan-based MicroLED developer PlayNitride announced that its financial results for 2024. The company's sales were 1.76 billion NTD ($53 million USD), up 86% from 2023 (943 million NTD, or $28.6 million USD). It's net income in 2024 was 60.1 million NTD ($1.8 milion USD), up from a loss of 512.8 million NTD in 2023.
PlayNitride also announced that it has secured 800 million NTD ($24.3 million USD) in a new secured convertible bond private placement. This follows a similar 800 million NTD bond issue it has announced towards the end of 2024.
China-based microLED developer Jade Bird Display (JBD) launched a microLED-powered printhead module. The company says that this printhead offers a compact footprint, high performance, low power consumption, high accuracy and ultra-quiet operation. The company says that the microLED powered printhead delivers significant commercial value for printer manufacturers.
JBD says that traditional laser print modules are based on point-by-point scanning—from a single point to a line—and gradually expose the surface, whereas the new microLED printhead module employs a more streamlined one-dimensional linear LED array. This design enables an entire row to be exposed at once, significantly enhancing printing efficiency. JBD's new module offers a 1200 DPI resolution, and the company has a roadmap to reach 2400 DPI and 4800 DPI in the future.
Next week, on March 6-7, MicroLED Connect will be hosting a two-day virtual event focused on MicroLED and AR/VR innovations, technologies, manufacturing, markets and more. The online event will be an excellent opportunity to learn the latest microLED and AR/VR updates and connect with industry professionals on our excellent online event platform.
The virtual 2-day conference will include over 25 exciting talks by leading microLED developers, AR/VR developers, supply chain companies and top-edge researchers. This will be an excellent opportunity to learn and connect with the microLED industry, on an easy to access virtual event. You can register here, with a yearly pass to MicroLED-Connect (with an option to also include entry into our September on-site event in Eindhoven, The Netherlands). Our members also gain access to past event recordings.
Ennostar Inc, established in 2021 as a joint venture between Epistar and Lextar, announced that it has decided to restructure and marge Epistar and Lextar into a single company that will be called Ennostar Corp. The merger will formally happen in October 2025.
Ennostar hopes that this move will help to accelerate the company's growth in the high-value-added optoelectronics market, which includes microLED displays, as the company wishes to increase its product range beyond LED devices into high level systems and solutions.
The MicroLED Industry Association launches a new project to initiate an international microLED standard. The association recognizes the need to align microLED developers and make sure the the industry progresses in a unified way as there are many challenges towards full scale microLED production - and adoption.
MicroLED Industry Association members will meet on March 24 to discuss the proposed project and select the companies that will lead the standard drive.
We are happy to announce a new edition of our MicroLED Transfer Process Market Report, with all the latest information, new technologies and companies, and more. MicroLEDs are advancing quickly and the transfer process remains one of the key challenges.
This microLED display transfer process report provides a comprehensive look into current and future LED transfer technologies processes used for the production of microLED displays. The report covers everything you need to know about the current status of the industry.
