The future of television got a test-drive recently in New York City. While consumers around the globe are just now getting acquainted with the vivid picture quality of high-definition television, or HDTV, a far more advanced super-high-resolution system is in the works. NHK, Japan's public broadcaster, is working on what it has dubbed Super Hi-Vision: a TV technology—not expected to be commercialized for a decade or more—that produces live video with a resolution 16 times that of today's HDTV and twice that of 70-millimeter movies. The New York City test was recorded for display at a convention of broadcasters who were meeting in Las Vegas.

Last November, NHK conducted its first live test in the field, when it transmitted an uncompressed 24-gigabit-per-second SHV video signal for several hours, producing a picture with a resolution of 7680 by 4320 pixels. The live video was relayed over 260 kilometers of optical fiber and viewed on a screen measuring 10 meters by 5.5 meters. The transmission also included a technically swank audio scheme, with more than 22 channels, to match the video's high resolution. To shoot the live transmission, the researchers used two custom-built cameras equipped with four 8-megapixel CMOS sensors.

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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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