Ostendo Technologies, Inc.

Rockwell Collins, Inc.

Robert G W Brown

Hussein S El-Ghoroury

Andrew J Lanzone

Dale A McNeill

Huibert Denboer

Vladimir Ivantsov

Alexander L Syrkin

Aditi Majumder

Oleg V Kovalenkov

Alexander Usikov

Philippe Spiberg

Lisa Shapovalova

An array of pixel assemblies emitting multiple wavelengths in a direction and a method therefor, the array comprising: a plurality of pixel assemblies, each respective pixel assembly having a respective pixel area, the respective pixel assembly formed by: one or more waveguides made from electro-optically active material; a plurality of different wavelength emitters, the different wavelength emitters disposed at one or more of the ends of the respective one or more waveguides to propagate their respective wavelengths therealong and capable of being switched; and a one switch disposed to cause when activated, a shifting of the wavelengths propagating in the one or more waveguides of the pixel assembly by substantially 90 degrees to be emitted through the respective pixel area; and a backplane with an electronic circuit for switching the plurality of switches and the emitters.

Multi-wavelength emitter array

A method of growing planar non-polar m-plane or semi-polar III-Nitride material, such as an m-plane gallium nitride (GaN) epitaxial layer, wherein the III-Nitride material is grown on a suitable substrate, such as an m-plane sapphire substrate, using hydride vapor phase epitaxy (HVPE). The method includes in-situ pretreatment of the substrate at elevated temperatures in an atmosphere of ammonia and argon, growing an intermediate layer such as an aluminum nitride (AlN) or aluminum-gallium nitride (AlGaN) on the annealed substrate, and growing the non-polar m-plane III-Nitride epitaxial layer on the intermediate layer using HVPE.

Growth of planar non-polar {1 -1 0 0} M-plane and semi-polar {1 1 -2 2} gallium nitride with hydride vapor phase epitaxy (HVPE)

Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, the light generated from the stack of diodes is emitted perpendicular to the plane of the imager device via a plurality of vertical waveguides that are coupled to the optical confinement regions of each of the multiple laser diodes comprising the imager device. Each of the laser diodes comprising a single pixel is individually addressable, enabling each pixel to simultaneously emit any combination of the colors associated with the laser diodes at any required on/off duty cycle for each color. Each individual multicolor pixel can simultaneously emit the required colors and brightness values by controlling the on/off duty cycles of their respective laser diodes.

Quantum photonic imagers and methods of fabrication thereof

This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.

Hierarchical multicolor primaries temporal multiplexing system

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Tustin, CA, United States of America

Robert G W Brown