Seminar #1: LED backlighting for Monitors and LCD-TV
Speaker: Gerard Harbers, Lumileds Lighting, San Jose, CA
Seminar #2: High Power LED Illuminators in Projection Displays
Speaker: Steve Paolini,Lumileds Lighting, San Jose, CA
Abstract #1: Light-emitting diodes (LEDs) are used today for backlighting of small LCD displays such as PDA’s and mobile phones. For bigger displays Cold Cathode Fluorescent Lamps (CCFL) are still used, but this is going to change the next few years. We will show that with the new Light Emitting Diode technology developed by Lumleds Lighting, LED backlighting can be applied for bigger displays as well, resulting in better front of screen performance, and higher system reliability.
About the Speaker: Gerard Harbers started his career in 1986 at Philips Research in the Netherlands. Main topic of his work at Philips Research was optical recording, in specific the optical design and testing of optical components. In 1996 he transferred to the Philips Lighting, where he managed the optical design group. Since 1999 he is working for Lumileds Lighting, first in the Netherlands, but now in San Jose (CA). Within Lumileds, he is responsible for the advanced development activities within the new Business Development Group. In that role, he started investigating LED backlighting opportunities almost 3 years ago, and is doing the same for LED illumination in projector applications now.
Abstract #2: High power LEDs, such as Luxeon from Lumileds, have increased in luminance to the point that they are becoming attractive for projection displays. A brief history of LEDs and future forecast will be given. Several architectures for Luxeon based projectors will be discussed with respect to system efficiency and throughput. The critical constraint is the etendue of the light source given the typical projection system. Allowing that, there are some unique advantages to using LEDs and at least one unique product that will be discussed.
About the Speaker: Steve Paolini is the Director of Business Development at Lumileds. He has held numerous engineering and management positions his 21 years in the LED business starting with Hewlett Packard. During the ’90s he worked in Japan and Malaysia. As a result of the decades long exponential improvement in LED efficiency and lumen-package output, his current role focuses on developing new businesses several years in the future. One of the most promising of these is applying LEDs to projectors.
Post-Seminar Dinner: The seminar is free. Please join our speaker for dinner ($10-20) afterwards. Directions to the restaurant will be handed out at the seminar.