Company Filing History:
Years Active: 2008
Title: Charles A Schrama: Innovator in LED Technology
Introduction
Charles A Schrama is a notable inventor based in Penang, Malaysia. He has made significant contributions to the field of LED technology, particularly in the development of backlighting systems. His innovative approach has led to advancements that enhance the performance and efficiency of LED lighting.
Latest Patents
One of Charles A Schrama's key patents is for an LED light source for backlighting with integrated electronics. This patent describes an LED backlight structure that sets voltages and currents for LEDs. In this design, red LEDs are connected in series between a first voltage regulator and a first controllable current source. Green LEDs are similarly connected between a second voltage regulator and a second controllable current source, while blue LEDs are connected in series between a third voltage regulator and a third controllable current source. The current sources may be linear current regulators controlled to balance the three colors to achieve a target light output using a light detection chamber. Additionally, PWM controllers control transistor switches connected in parallel across groups of LEDs, allowing for adjustable brightness levels.
Career Highlights
Charles A Schrama is associated with Philips Lumileds Lighting Company LLC, where he has been instrumental in advancing LED technology. His work has focused on creating efficient lighting solutions that cater to modern display technologies, including LCD televisions. His innovative designs have contributed to the evolution of backlighting systems, making them more effective and energy-efficient.
Collaborations
Throughout his career, Charles has collaborated with notable colleagues such as Pieter Grootes and Noboru Kaito. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.
Conclusion
Charles A Schrama's contributions to LED technology exemplify the impact of innovation in the lighting industry. His patented designs and collaborative efforts continue to shape the future of efficient lighting solutions.