You can look up the patents that Russ Draper and David Fellowes share with eMagin. Look where they are now and what they are working on and what they get awards for.. We can stop worrying about other display systems can't we?

David Fellowes and Russell Draper, U.S. Army Research, Development and Engineering Command Communications-Electronics Center Night Vision and Electronics Sensors Directorate, received a Defense Manufacturing Technology Achievement Award, "Enhancing Military Capability," for their work on Organic Light Emitting Diode Microdisplays. Their project matured manufacturing processes required to produce advanced technology for head-worn displays that provide situational awareness for Soldiers.

https://www.army.mil/article/216095/army_promotes_modernization_priorities_at_defense_manufacturing_conference