LED developers - Page 2

San'an Optoelectronics is China's largest LED epitaxial wafers and chips producer. San'an says it produces over 24 million epitaxial wafers and 300 billion LED chips annually - which is about 58% of the total production in China.

In 2018 San'an signed a long-term agreement with Samsung to co-develop and supply LED chips for Samsung's Micro-LED displays. In early 2025 we reported that the company passed Samsung's audit and quality tests and will start shipping microLEDs wafers to Samsung.

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 Semiconductor holds over 12,000 patents.

Seoul Semiconductor buys its LED chips from its sister company Seoul Viosys, and adds packing, modules, etc. 

Korea-based Seoul Viosys develops and producers LED of all wavelengths, and operates its own LED (and microLED) epiwafer foundry.

In collaboration with its sister-company Seoul Semiconductors, Seoul Viosys develoopes its WICOP mp MicroPixel technology, which is an RGB microLED vertical pixel. The company demonstrated several prototypes and published a roadmap in May 2023. The company is mostly targeting the signage market.

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.

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.