GaN-on-Silicon nanowire technology is promising for several display applications. Since one of the microLED display major challenges is to drastically reduce the cost, the possibility to downsize the microLED is paramount. Aledia has developed a nanowire microLED technology on large Si wafers which keeps the same blue emission efficiency for ⪅2μm size devices containing only 1 NW as for larger devices containing up to few hundreds of NWs. A RGB integrated pixel relying on this technology is presented where quantum dots are used for green and red color conversion. Another nanowire microLED concept for AR/MR applications is also presented where light emission directivity and pixel size downsizing are mandatory.
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