According to the French research organisation, the technology will help developers to address growing demand for AR glasses for consumer and professional use, head-up displays for vehicles and pico projectors.
The prototype microdisplay is based on a self-emissive GaN based technology and is said by Leti to boast the highest resolution and smallest pixel pitch yet presented.
The demonstrator, which features a monochrome (blue or green) active-matrix prototype with WVGA resolution of 873 x 500 pixels, was created by patterning high-density microLED arrays and hybridising them on a CMOS circuit.
“Leti’s technology has reached an important milestone,” said François Templier, project manager. “We will continue to work towards a 5µm pixel pitch and, beyond that, on a new technology that will take GaN LED microdisplays to a pixel pitch of less than 5µm.”
