#389 Nov 24, 2014 – Princeton Team Creates 3D-Printed LEDs

This week’s headline story: Princeton Team Creates 3D-Printed LEDs

LED Components
LED Components

A team of researchers at Princeton have developed a 3D printing technique that makes it possible to print complex electronic components such as LEDs and semiconductors. The scientists choose printable electrodes, polymers and semiconductors, which are dissolved in solvents to keep them from damaging underlying layers during the printing process; after that, the team uses design software to print the materials in interweaving patterns. They have used the technique to 3D print a tiny LED that could be duplicated across a grid to create displays which could then be embedded in other printed objects, including those with curved surfaces. The technology could spawn a whole new generation of flexible and wearable gadgets.

The researchers believe that the technology could be used to embed a tiny display in a contact lens, or to create bionic implants that use lights to stimulate nerves. Since the approach should work with other semiconductors, it could be used to put solar cells, transistors and other electronics into places where they’d have previously been impractical or impossible.

in other tech news…

  • Can China’s New Internet Conference Compete with the West in Defining Norms of Cyberspace? [Forbes]

    China Blocks Web Sites as Internet Meeting Begins [NewsFactor]

    Ironically, the country known for its strong Internet censorship, is playing host to the World Internet Conference. The conference is hosted by the Cyberspace Administration of China and follows similar conferences hosted by the UK, Hungary, and South Korea. China says that the mission of the conference is to promote the “development of the Internet to be the global shared resources for human solidarity and economic progress.” Just prior to the conference, Chinese censors blocked several web services used by dissidents to subvert the great firewall of China.


and in Information Security news this week..

  • Web Site Shows Feeds from Thousands of Private Web cams [NewsFactor]

    A Russian Web site is showing live footage from thousands of people’s web-cams. The Web site’s index lists more than 4,500 feeds in the U.S., as well as hundreds more from France, the Netherlands, Japan, Italy, the UK and Hong Kong. An introductory note on the home page notes that the site “is fully legal” as it provides access only to images from cameras without passwords. “This site has been designed in order to show the importance of the security settings,” the Web site also added. “To remove your public camera from this site and make it private the only thing you need to do is to change your camera default password.”

and in Tech Industry news…

  • WhatsApp Starts Encrypting Text Messages by Default [NewsFactor]

    WhatsApp, the popular cross-platform mobile messaging app, has released it’s first version with end-to-end encryption for text messages. The latest version of the app for Android has encrypted messaging selected by default, with plans to extend encryption across all platforms. “Even though we’re still at the beginning of the rollout, we believe this already represents the largest deployment of end-to-end encrypted communication in history,” WhatsApp boasts over 600 million active monthly. Facebook recently acquired WhatsApp for $16 billion.

  • Facebook Launches New App for Groups [NewsFactor]

    Facebook has launched a new mobile app for its Groups feature. Facebook says the Groups functionality is designed to help people share information faster and more easily with “all the groups in their life.” With Groups as its own app, the company seems to be continuing with a trend of unbundling capabilities away from the main social network. Facebook did something similar when it spun out its Messenger functionality into its own app earlier this year.

  • Apple Starts the Clock on Apple Watch Launch [NewsFactor]

    Apple is preparing for its launch of the Apple Watch due out in early 2015. The company announced the debut of WatchKit, a set of tools for developers to design apps for the Apple Watch. Apple suggested developers could help users perform simple tasks with the watch, such as shutting off the lights, in addition to checking the status of a flight or the score of a game, citing apps from the likes of American Airlines and ESPN.

and finally…

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