Admit it. You’ve always wanted a pair of spy glasses like the ones Ethan Hunt of the Mission: Impossible movies uses to covertly scan the dossier on a master criminal who has to be stopped at all costs. Though your uses for such a device—checking e-mail, enjoying a movie or video game, or even reviewing sensitive company documents containing personal information—aren’t activities in which life and death hang in the balance, a new, ultrathin head-up display will let you view your Microsoft Word documents or situation comedies the way a spy would: as an image that appears to be a 60-inch TV screen situated three meters away.

Lumus-Optical, a Rehovot, Israel�based company that specializes in wearable displays, has developed a pair of eyeglasses that look like ordinary designer eyewear but have postage-stamp-size projectors mounted right where the arms meet the outside edges of the 3-millimeter-thick lenses. Lumus says the wearable display—for which it has yet to set a commercial release date or provide pricing information—can get away with such a compact arrangement while providing a 70-degree field of view because of the company’s patented Light-Guide Optical Element, or LOE, technology (the best conventional optics require 16-mm-thick lenses in order to deliver a 20-degree field of view).

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Digging Into the New QD-OLED TVs

Formerly rival technologies have come together in Samsung displays

5 min read
Television screen displaying closeup of crystals

Sony's A95K televisions incorporate Samsung's new QD-OLED display technology.

Sony
Blue
Televisions and computer monitors with QD-OLED displays are now on store shelves. The image quality is—as expected—impressive, with amazing black levels, wide viewing angles, a broad color gamut, and high brightness. The products include:

All these products use display panels manufactured by Samsung but have their own unique display assembly, operating system, and electronics.

I took apart a 55-inch Samsung S95B to learn just how these new displays are put together (destroying it in the process). I found an extremely thin OLED backplane that generates blue light with an equally thin QD color-converting structure that completes the optical stack. I used a UV light source, a microscope, and a spectrometer to learn a lot about how these displays work.

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