Interconnections & Packaging: White LED Light Guides For 3G Cell Phones Up Backlighting Efficiency

March 1, 2004

The MicroLens family of molded white LED light guides provides bright, efficient, and cost-effective backlighting for 3G cell phones. These guides feature enhanced brightness (up to 10,000 nits), crisper colors, extreme thinness (0.65 mm), lower power consumption, and more efficient use of white LEDs. Features can be designed into the backlight, and the LEDs can attach directly to a flex circuit and be molded into the backlight. They can be custom designed to any size, including 1-, 1.5-, 1.8-, and 2-in. diagonal. The light guide with back reflector, frame, brightness-enhancement films, diffuser, and mask ranges from $0.95 to $1.25 in production quantities.

Global Lighting Technologieswww.glthome.com; (866) 922-4584

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.