In other embodiments the eyepiece may utilize OLED displays, quantum-dot displays, and the like, that provide higher power efficiency, brighter displays, less costly components, and the like. In addition, display technologies such as OLED and quantum-dot displays may allow for flexible displays, and so allowing greater packaging efficiency that may reduce the overall size of the eyepiece. For example, OLED and quantum-dot display materials may be printed through stamping techniques onto plastic substrates, thus creating a flexible display component. For example, the OLED (organic LED) display may be a flexible, low-power display that does not require backlighting. It can be curved, as in standard eyeglass lenses. In one embodiment, the OLED display may be or provide for a transparent display.
https://www.onmsft.com/news/newly-published-microsoft-patent-shows-a-miniaturized-hololens-like-device
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