Dr. James Murphy Senior Scientist: LED Phosphor Program Manager GE Global Research
GE RadiantRedTM Technology: Market Leading Wide Color Gamut Phosphor & Path Towards Enabling Next Generation Displays
In only five years since initial commercialization, RadiantRedTM Technology from GE using red-line emission of K2SiF6:Mn4+ phosphor (PFS/KSF) centered at 631 nm has become the market leading wide color gamut solution for 4K UHD TVs, tablets, phones and laptops. KSF provides a cost effective, on-chip LED solution for wide color gamut displays that is RoHS compliant. As opposed to OLED or quantum dot containing displays, KSF-based LEDs are a drop-in replacement in LCD BLUs and do not require additional remote films and/or barrier encapsulants to achieve excellent reliability. KSF has penetrated the display market greater than 5 times faster than quantum dot technology with over 30 billion KSF containing LEDs (from 20 licensed LED package manufacturers) used in all major commercial display types worldwide. This presentation will discuss the technology and licensing strategy that have enabled this success and the path forward around integration into future displays with higher color gamut (>90% BT.2020) and additional functionality versus current HDR 4K/8K displays.
References:  James E. Murphy, Florencio Garcia-Santamaria, Anant A. Setlur, Srinivas Sista, SID Symposium Digest of Technical Papers, 46 (1), p. 927-930 (2015).  A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prashanth Kumar, M. Satya Kishore, ECS Journal of Solid State Science and Technology, 2 (2) R3059-R3070 (2013).  F. Garcia-Santamaria, J.E. Murphy, A.A. Setlur, S.P. Sista, ECS Journal of Solid State Science and Technology, 7 (1) R3030-R3033 (2018)  http://www.gelighting.com/LightingWeb/na/solutions/technologies/reveal-trigain/
Jim Murphy is a senior scientist at GE Global Research Center where he serves as the LED Phosphor Program Manager. He has over 60 global patent applications and publications in the field of inorganic luminescent material development. He received his Ph.D. in Physical Chemistry from the University of Colorado where he developed semiconductor nanocrystals for solar cell applications. After serving as a postdoctoral researcher at the National Renewable Energy Laboratory, he spent 2006-2009 as a Principal Research Scientist with OSRAM SYLVANIA Inc. working on phosphor development and scale up at the Towanda, PA facility as it transitioned to become Global Tungsten and Powders Corp. Jim graduated in 1996 with a B.A. in Chemistry from Franklin and Marshall College.