Startups have raised more than US$800 million to date, including at least US$100 million in 2019 and it is estimated that Apple has spent in the range of US$1.5 to US$2 billion on the technology over the last five years, observe the analysts at Yole. Panel makers such as Samsung Display, LG Display, AUO or Innolux have also significantly increased their efforts, and novel performance or process yield breakthroughs regularly make the news.
“Without doubts, today microLEDs are progressing on all fronts,” says Yole’s principal display market & technologies analyst, Eric Virey.
Patent filings are growing exponentially and technology is progressing. The external quantum efficiency of blue and green microLED chips has more than doubled over the past 24 months. Some transfer and assembly processes are reaching performance close to what is required to enable some microLED consumer applications. Progress is also visible in the proliferation of prototypes presented over the last 18 months by close to 20 companies.
“The demos cover a broad range of display types, sizes and technologies. Native RGB or color converted displays on TFT backplanes are offered by many companies, with some examples including Playnitride, CSOT, Samsung, LG, glō, AUO, eLux, and Kyocera. Lumiode has developed native RGB or color converted displays on monolithicaly integrated LTPS”, highlights, Zine Bouhamri, technology & market analyst at Yole.