innovation for industry
Articles ＆ files | Focus | Article
A novel, compact gan led source enabling dynamic spatial control of light towards high brightness and high resolution illumination
2DLight is a preliminary demonstration of micro-LED array technology allowing spatial and dynamic control of thelight flux without any moving part.
2DLight projects the emitted light on the scene to be illuminated:
Depending on design of the LED array, driving circuit and optical system, this versatile technology addresses severalapplication fields:
This monolithic LED array has several novel features:
connected anodes > uniform electro-optical characteristics
> minimizes interpixel footprint> minimal efficiency droop enabling maximum emission output per chip
> minimizes interpixel footprint> avoids optical crosstalk
What’s Next?In the near future we will work on:
KEY FACTS :
• >95% emitting area(4 μm interpitch 182 μmpitch)>self-aligned patterning• 2 photolithography front-endlevels before hybridization• Patents pending on:• array architecture• pixelation processand integration• low-pitch hybridizationapproaches
© Leti –
Credits photos : CEA -01/2017
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.