UK-based GaN-On-Si MicroLED microdisplay developer Plessey Semiconductor announced that it has successfully developed the world’s first GaN on Silicon-based Red LED.

Red LEDs are typically based on AlInGaP materia, or are color-converted from blue LEDs. These red LEDs limit the efficiency and the ability to create ultra-fine pitch sub pixels. Plessey says that InGaN red LEDs will also offer lower manufacturing costs, scalability to larger 200 mm or 300 mm wafers and better hot/cold factor over incumbent AlInGaP-based Red.

Taiwan-based PMOLED display maker RiTDisplay announced that it plans to launch its first MicroLED displays in 2020. RiTDisplay aims to mass produce wearable displays and hopes for receive meaningful revenues already in 2020.

In May 2019 RiTDisplay announced a strategic partnership and share swap with MicroLED developer PlayNitride. In June 2019 it was reported that a US-based smartwatch brand will start a design process in Q3 2019 using a micro-LED display that was co-developed by RiTDisplay and PlayNitride. RiT was reportedly to start shipping samples in Q4 2019.

In January 2019 Aixtron and PlayNitride signed a joint-collaboration agreement to accelerate Micro-LED development and PlayNitride ordered an AIX G5+ C MOCVD system. Aixtron announced that the AIX G5+ C system is now fully qualified for production - and Playnitride placed a follow-up order for a second such system.

Aixtron says that the G5+ C is an advanced advanced production tool that offers market leading wavelength uniformity to meet the tightened Micro LED market specifications in a batch reactor high-throughput environment. The system allows for the lowest defect and particle level in the industry due to an effective in-situ cleaning technology and the cassette-to-cassette handler which is essential for high yields. The G5+ C MOCVD was also recently ordered by Plessey for its own GaN-on-Silicon Micro-LED development and production.