An innovative display that:

· Is covered by US Patent 10,885,828.

· Is fabricated using Si3N4 CMOS processes. 

· Has several million color pixels per  square inch.

· Provides contrast rendition better than current technology.

· Operates at frame rates limited by the CMOS electronics.

· Operates at any wavelength from 0.4 to 5 micrometers.   

The figure at right compares the construction of a Waveguide Display projector with construction of a Texas Instruments Digital Light Processing projector. The WD requires only fiber coupled light and a lens, whereas the DLP requires a more complicated design. Further, the WD is much faster than DLP.

• Pigtailed light emitting diodes (LED) provide light.
• Pixel intensity is controlled by a combination of Mach Zehnder Interferometers (MZI) and LED timing. 
• Light is radiated from Bragg Gratings with light control provided by Bragg Reflectors and metallization. 
• Light that is not radiated is coupled to a silicon diode to monitor uniformity & determine the correct MZI phase settings.