US-based Saphlux has developed a 0.39" full-color microLED Microdisplay, based on the company's NPQD color conversion technology. You can see a sample of Saphlux's T1-0.39 RGB display in the video below.
Saphlux's first microdisplay offers a maximum white brightness of 250,000 nits, and a wide color gamut. The company is using high-EQE blue microLEDs (it has a partner that supplies the LEDs) and its NPQD technology achieves 67% photon conversion efficiency. The company's technology enables a pixel pitch of sub-2 microns.
Saphlux's NPQD technology makes use of a nanopore structure to deposit the quantum dots on blue microLED chips. Saphlux says that the nanoporous structure has a unique scattering effect, which enhances light conversion efficiency and the reliability of the quantum dots. The solution also provides a wide color gamut, good color consistency and high efficiency.
Saphlux's technology is also suitable for larger displays, and its investor Leyard is producing large-area tiled microLED displays using the company's NPQD microLEDs.