Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not an Insider? Subscribe now for unlimited access to online articles.

Intelligent Machines

Laser Television

Purer than plasma, with more colors

Watch out, plasma TV lovers. Later this year, ­Mitsubishi and ­Samsung could be selling TVs that use lasers to provide more, and more accurate, colors than other display technologies do. That even goes for plasma displays, which use electrically charged gases to cause materials called phosphors to glow.

A three-centimeter-wide emitter of red, green, and blue laser light is shown above.

Lasers have always been theoretically better, but until recently, lasers small enough to fit in displays or projectors were too weak to be practical. But Novalux, a company in Sunnyvale, CA, found that adding a crystal of lithium niobate to a gallium indium arsenide laser would boost its light output and change its wavelength from infrared to the red, green, or blue that are the building blocks of color displays. The lasers shine on arrays of thousands of micromirrors that flip back and forth thousands of times a second to combine the light into new colors of different intensities, says inventor Aram Mooradian, founder of Novalux and former head of the quantum electronics group at MIT’s Lincoln Laboratory.

This story is part of our January/February 2007 Issue
See the rest of the issue
Subscribe

The first commercial products to use the Novalux technology will be televisions that have 72 lasers each. But mobile gadgets that use as few as three lasers–say, cell phones that pro­ject photos on a barroom wall–could be next. Mooradian has his sights on Hollywood: ultimately he hopes to make movie projectors that use hundreds of lasers.

Be the leader your company needs. Implement ethical AI.
Join us at EmTech Digital 2019.

Register now
More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Plus.
  • Insider Plus {! insider.prices.plus !}*

    {! insider.display.menuOptionsLabel !}

    Everything included in Insider Basic, plus the digital magazine, extensive archive, ad-free web experience, and discounts to partner offerings and MIT Technology Review events.

    See details+

    Print + Digital Magazine (6 bi-monthly issues)

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

    Technology Review PDF magazine archive, including articles, images, and covers dating back to 1899

    10% Discount to MIT Technology Review events and MIT Press

    Ad-free website experience

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.