China-based MicroLED microdisplay developer Jade Bird Display announced that it is developing a native full-color microLED microdisplay. JBD is working to integrate InGaN and AlInGaP on the same chip, fabricated using conventional thin-film processes.
JBD says it developed a proprietary (and patented) technology in which the epitaxy layers were designed to be less susceptibility to edge effects, which helps to increase the display's efficiency. JBD's technology also enables effective mesa sidewall passivation. JBD refers to its technology as monolithic hybrid integration and says it can reach a PPI of up to 10,000 with a pixel pitch of 2.5 um.
JBD is also adopting micro lens technology (which it calls Pixel Optics) to increase light output.
JBD says that its first microLED display will be 0.22" in size with a qHD (960x54) resolution and a pixel pitch of 5 um. The next display will feature a smaller pixel pitch of 3 um. The dispalys aren't ready yet, and prototypes will only appear in 2023 at the earliest.
In June 2022 it was reported that JBD is building a $92 million USD display production line in Hefei. The production line will have an annual capacity of around 120 million panels (likely JBD's 0.13" monochrome variant). JBD also announced that it has developed a new red microLED emitter, that offers up to 500,000 nits of brightness at 2 micron sizes.
