The December 2022 issue of IEEE Spectrum is here!

Close bar

Sizing Up Your LCD TV

It takes more than a tape measure to tell if it's worth the price

4 min read

Have you bought an LCD tele­vision in the past year or two? If so, you probably looked for the biggest screen you could get for your money. You might have paid a few more dollars for a brand you recognized or saved a few dollars by picking up a no-name television at Costco, so long as the size-to-dollar ratio was good.

But picture quality? Hey, all the displays in the store looked pretty good, as they cycled through images of swaying flowers or undulating fish. You might not have given it a second thought. Well, think again. Picture quality is fast replacing size and cost as the main competitive feature.

Keep Reading ↓Show less

This article is for IEEE members only. Join IEEE to access our full archive.

Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, podcasts, and special reports. Learn more →

If you're already an IEEE member, please sign in to continue reading.

Membership includes:

  • Get unlimited access to IEEE Spectrum content
  • Follow your favorite topics to create a personalized feed of IEEE Spectrum content
  • Save Spectrum articles to read later
  • Network with other technology professionals
  • Establish a professional profile
  • Create a group to share and collaborate on projects
  • Discover IEEE events and activities
  • Join and participate in discussions

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.

Keep Reading ↓Show less