China-based Enkris Semiconductor is a GaN epi-foundry, that offers GaN-on-Silicon, GaN-on- SiC , GaN-on-Sapphire and GaN-on-GaN epi wafers with varied sizes.
In 2022 the company launched its first products for the microLED industry, its full-color RGB GaN-on-Si series, available in wafer sizes up to 300 mm.
Polar Light Technologies was spun-off from Sweden's Linköping University to commercialize a monolithic approach to produce pyramidal microLEDs using a MOCVD-based a bottom-up growth process.
Taiwan-based Ennostar was established in early 2021 as a joint venture between Epistar and Lextar. Ennostar is the holding company that owns both Epistar and Lextar, and together the two companies hold about 12.5% of the global LED chip market.
Ennostar official goal is to become a multinational investment platform for the compound semiconductor industries. Specifically the focus is on mini LEDs and microLEDs products and technologies.
Ennostar has three main areas, divided between its daughter companies: Epistar will focus on LED epitaxy and chip, Lextar will focus on packaging and module, and Unikorn Semiconductor Corp. (under Epistar) will develop advanced compound semiconductor foundry.
Porotech was spun-off the University of Cambridge, to commercialize a porous GaN material platform technology using a unique production method.
Porotech targets several markets, including quantum computing, power electronics, lasers and microLEDs.
In 2020, Porotech secured a £1.5 million seed round investment. In November 2020, the company announced what it says is the first commercial native red LED epiwafer for micro-LED applications.
In June 2020 the company raised £3 million.
Taiwan-based Unity Opto Technology, established in 1993, develops and markets a wide variety of LED products, including LED packages, LED back lighting for displays and automotive LED products.
In 2020 Unity Opto announced plans to invest $1.9 billion NT (around $64 million USD) to setup six new production lines for mini-LEDs and micro-LEDs.
Korea-based Seoul Viosys provides a wide range of UV wavelength LED devices and mass produces LED chips for all wavelengths, from 200 nm to 1600 nm.
In collaboration with Seoul Semiconductors, Seoul Viosys developed a new MicroLED technology, called Micro Clean LED that packages three separate LEDs (red, green and blue) into a single MicroLED pixel. In 2022 Seoul Viosys unveiled its WICOP mp MicroPixel technology.
Korea based ILJIN Display is a producer of sapphire substrates, and the only company in Korea that makers sapphire single crystal and substrates.
ILJIN supplies microLED substrates to microLED developers - including to Epistar, PlayNitride and Samsung Electronics.
China-based ShineOn, established in 2010, is a global LED package and module solution provide for the lighting and display markets.
ShineOn has been developing Micro-LED technologies since 2016, including its own laser-lift-off thin-film LED technology. In 2019 the company unveiled a 139" 4K Micro-LED display prototype it developed in collaboration with Korea-based Lumens.
Korea-based Seoul Semiconductor, established in 2000, develops and commercializes LEDs for automotive, general illumination, specialty lighting, and backlighting markets. The company says it is the world's second-largest LED maker (excluding the captive market). Seoul holds over 12,000 patents.
In January 2019 Seoul Semiconductor introduced Micro-LED products for next generation displays. In 2022 the company unveiled its WICOP technology to package vertically stacked microLEDs. The company demonstrated several prototypes and published a roadmap in May 2023.
Japan-based Micro Nitride was established in 2018 as a subsidiary of Nitride Semiconductors to develop micro UV LED chips for Micro-LED displays.
Micro Nitride's technology, called μUV-LED+RGB phosphor, uses UV micro-LEDs and RGB phosphors.