Lumileds LLC

Koninklijke Philips Corporation N.V.

Marcel Van Gerwen

Hans-Helmut Bechtel

Antonio Lopez-Julia

Thomas Diederich

Jens Meyer

Ronja Missong

Joerg Feldmann

Erik Roeling

An optical coupling structures are disposed on light output surfaces of semiconductor LEDs of a miniLED or microLED array to facilitate coupling of light emitted by the semiconductor LEDs through the light output surfaces. The optical coupling structures comprise light scattering particles and/or air voids embedded in or coated with a thin layer of a material that has an index of refraction close to or matching the index of refraction of the material forming the light output surface of the semiconductor LEDs.

Optical coupling layer to improve output flux in LEDs

Growing community of inventors

Aachen, Germany

Marcel Van Gerwen