LED developers

Aledia, headquartered in Grenoble, France,  was founded in 2011 to commercialize a  3D GaN Nanowire-on-Silicon platform, on 200 mm and 300 mm silicon wafers using CMOS wafer-fabrication processes and tools. 

The company develops microLED solutions addressing three strategic markets: optical interconnects for AI data centers, augmented reality (AR) microdisplays, and advanced microLED displays.

Manufactured on 200 mm silicon wafers using semiconductor industry standard processes, Aledia says that its technology combines the scalability of silicon manufacturing with the performance advantages of 3D GaN nanowire architectures, enabling breakthrough microLED performance across multiple applications.

Austria-based ams OSRAM is a multinational photonics application developer, focusing on sensors, LEDs and light-based treatment solutions.

ams OSRAM is at the forefront of microLED epiwafer production. In 2021, the company announced that it will expand its LED production plant in Kulim, Malaysia, with an investment of around $850 million, with plans to produce mini-LED and micro-LED chips on 8-inch wafers. ams OSRAM hoped to enter microLED mass production in 2024, mainly to supply microLEDs to Apple.

Established in 2006, China-based Changelight is a manufacturer of LED devices, mostly for outdoor applications.

In 2018 it was reported that Changelight is developing both mini-LEDs and micro-LEDs. For micro-LED displays, Changelight focuses on chip and mass transfer technologies.

China-based Enkris Semiconductor, established in 2012, 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. The company mainly targets the power electronics market, and microLED displays.

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.

Taiwan-based Ennostar Corporation was established in early 2021 as a joint venture between Epistar and Lextar. Ennostar started out as a holding company that owned both Epistar and Lextar, and more subsidiaries, and together the two companies hold about 12.5% of the global LED chip market. In 2025, Epistar and Lextar formally merged into Ennostar.

Ennostar's 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 is active in three main areas: LED epitaxy and chip production (formerly Epistar's business), LED packaging and module production (formerly Lextar's business) and an advanced compound semiconductor foundry (formerly Unikorn Semiconductor).

Taiwan-based Epileds Technologies was established in 2006 at the Tainan Science Park. Epileds develops, designs and produces blue, green, red, and white light LED wafers and chips.

In early 2018 it was reported that Epileds has initiated an R&D project to develop micro-LEDs and mini-LEDs. In May 2018 Foxconn acquired a stake in Epileds, with a specific interest in its micro-LED project.

Established in 2003 in the USA (with operations in Sweden as well) based on research performed at Lund University, Glo is developing GaN nanowire based micro LEDs for display applications. In 2021 the company was acquired by Nanosys. In 2022 Nanosys sold its GaN fab and engineering team to Avicena.

Before Nanosys' acquisition, Glo said that its Nanowires technology enables high reliability red, green and blue microLEDs. Glo was targeting the entire display market, from small-sized wearable displays to TV panels and large-area displays.

HC SemiTek Corporation, established in 2005 in Wuhan China, is a LED supplier that focuses on full-color ultra-high LED epitaxial products and chips.

In 2018 HC SemiTek announced it is launching a new project to develop Micro-LED chips. In 2023, HC SemiTek launched a $700 million USD project to build a microLED production line in Jinwan District, Zhuhai, China. As of October 2024, the project is progressing on track, with full-scale production expected by end of 2025.

In 2022, BOE invested $289 million in HC SemiTek, and is the company's largest stakeholder.

Korea based ILJIN Display is a producer of sapphire substrates, and the only company in Korea that makes sapphire single crystal and substrates.

ILJIN supplies microLED substrates to microLED developers - including to Epistar, PlayNitride and Samsung Electronics.

Japan-based Nichia Corporation is a leading chemical engineering and manufacturing company that produces LEDs, laser diodes, battery materials and more.

Nichia develops micro-LED chips, transfer technologies and related equipment.

Taiwan-based PlayNitride was established in June 2014 to research and develop Nitride related materials and applications. The fabless company is now focusing on GaN based MicroLEDs.

PlayNitride developed its own microLED epiwafer production process (using Aixtron's G5+ MOCVD systems), its own stamp-based transfer technology and also its own repair technology (SMAR.Tech).

PlayNitride started to sample micro-LED at the end of 2017, and in May 2018 PlayNitride demonstrated its first Micro-LED prototypes. PlayNitride has a pilot production facility at Hsinchu Science Park. In 2020 PlayNitride started constructing a second production line that will start mass producing in H2 2021.

Polar Light Technologies is a Swedish microLED company spun out of Linköping University. The company has developed a proprietary bottom-up manufacturing technology in which pyramidal InGaN/GaN microLEDs are grown directly by MOCVD, instead of being defined through conventional etching.

PLT says that its bottom-up approach avoids the sidewall damage and efficiency losses associated with etched microLEDs, particularly as pixel dimensions are reduced, and so provides a route to highly efficient, densely integrated microLED arrays and monolithic multi-colour devices. 

Polar Light Technologies develops microLED components, display modules and development platforms for microdisplays, optical systems and larger-area display applications.