The Other Microdisplay

May 11, 2006
Most microdisplays are used in rear projection TVs (RPTVs). But some devices, also known as "near-to-eye" microdisplays, are taking the home theater out of the house and on the road. Products based on near-to-eye microdisplays can be found in many ev

Most microdisplays are used in rear projection TVs (RPTVs). But some devices, also known as "near-to-eye" microdisplays, are taking the home theater out of the house and on the road.

Products based on near-to-eye microdisplays can be found in many everyday items like digital cameras and camcorders, as well as head-mounted displays. They also can be found in these products' viewfinders. Head-mounted displays can be built with twin electronic viewfinders for viewing DVD players, home location-based entertainment, and game playing. Typically simpler and smaller than the microdisplays used in HD RPTVs, near-to-eye devices generally employ a single source of light like an LED.

Microdisplay manufacturer Kopin Corp. teamed up with personal display solutions company Icuiti Corp. to create a piece of eyewear that incorporates a full-color video system. Resembling a pair of futuristic sunglasses, the Icuiti V920 employs Kopin's CyberDisplay color-filter VGA microdisplays. It creates a sharp image for the viewer that is equivalent to a 42-in. flat screen viewed from a distance of 7 ft.

Liquid-crystal-on-silicon (LCoS) microdisplay manufacturers have their eye on other applications for their products besides RPTVs. They include niche markets for neartoeye displays in home video-game consoles, pocket projectors, and cameras and camcorders.

About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.

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