A Bright New Page in Portable Displays

Three new types of displays might make mobile devices the best way to get your newspaper

15 min read
a 160-mm-diagonal, color cholesteric liquid-crystal display

Despite being photographed outdoors in full sunlight, a 160-mm-diagonal, color cholesteric liquid-crystal display, built with off-the-shelf electronics for demonstration purposes by Kent Displays Inc., shows a bright image. The image is produced by reflected light, not backlighting, and no power is needed to hold the image on the screen.

Photo: Kent Displays Inc.

It would be a lot easier to read a laptop display if the information on it looked as if it were printed on paper, as in a newspaper or magazine. The backlit screen would not wash out in bright light, but would look even brighter. One could view the screen from any angle and still be able to read it. Text and images would be sharp and details would be clear. And what if, as a bonus, the display consumed no power while it was being read?

Sounds good, doesn't it? Well, a trio of displays being developed will do all that. The goal is for them to look and work like paper. They reflect ambient light and retain images indefinitely, rather than rely on back-lighting and screen refreshing as a laptop's display does, so they need not consume power to be readable. And they can be read from any angle, because they reflect light evenly in all directions, a property referred to as Lambertian reflection.

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Video Friday: Drone in a Cage

Your weekly selection of awesome robot videos

3 min read
A drone inside of a protective geometric cage flies through a dark rain

Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We also post a weekly calendar of upcoming robotics events for the next few months. Please send us your events for inclusion.

ICRA 2022: 23 May–27 May 2022, PHILADELPHIA
IEEE ARSO 2022: 28 May–30 May 2022, LONG BEACH, CALIF.
RSS 2022: 21 June–1 July 2022, NEW YORK CITY
ERF 2022: 28 June–30 June 2022, ROTTERDAM, NETHERLANDS
RoboCup 2022: 11 July–17 July 2022, BANGKOK
IEEE CASE 2022: 20 August–24 August 2022, MEXICO CITY
CLAWAR 2022: 12 September–14 September 2022, AZORES, PORTUGAL

Enjoy today’s videos!

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Remembering 1982 IEEE President Robert Larson

He was a supporter of several IEEE programs including Smart Village

3 min read
A photo of two men in suits.  One behind the other.

Robert Larson [left] with IEEE Life Fellow Eric Herz, who served as IEEE general manager and executive director.

IEEE History Center

Robert E. Larson, 1982 IEEE president, died on 10 March at the age of 83.

An active volunteer who held many high-level positions throughout the organization, Larson was the 1975–1976 president of the IEEE Control Systems Society and also served as IEEE Foundation president.

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Reduce EMI and EMC Issues with Engineering Simulation Software

Save time and money all while delivering accurate and reliable results

1 min read
Reduce EMI and EMC Issues with Engineering Simulation Software

Electronic components and systems exist today in nearly all consumer and industrial products. A major design consideration in all electronics is electromagnetic interference (EMI) and compatibility (EMC). EMI and EMC issues are complex. They can be hard to detect and can be taxing to a design. With the use of engineering simulation software, design engineers can mitigate issues before entering the prototype testing phase. Avoiding the test-retest cycle with simulation can help save time and money all while delivering robust and reliable products.