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The Big Picture: Attack of the Seven-Story Linebackers

The world's largest TV screens are inside the Dallas Cowboys' new football stadium

1 min read
The Big Picture: Attack of the Seven-Story Linebackers

big picture dec08

Photo: Mitsubishi
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Each of the two 49-by-22-meter sideline-facing screens suspended above the football field at the brand-new Cowboys Stadium in Arlington, Texas, comprises more than 10.5 million LEDs, which together draw 635 kilowatts. That’s enough power to serve the total needs of 975 U.S. homes. The two ”puny” 15.5-by-9-meter end-zone-facing displays each draw just 80 kW. Because there are four LEDs (two red, one blue, and one green) in each pixel, the 2176-by-4864-LED sideline displays provide the same image resolution as any 1080p hi-def TV—but the players running across your screen at home are probably not seven stories tall.

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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.

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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