Company Filing History:
Years Active: 1994-2000
Title: Gitte Harkonen: Innovator in Electroluminescent Technology
Introduction
Gitte Harkonen is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of electroluminescent technology, holding 2 patents that showcase his innovative approaches.
Latest Patents
Harkonen's latest patents include a method of growing a ZnS:Mn phosphor layer for use in thin-film electroluminescent components. This invention involves growing the ZnS:Mn phosphor layer on a substrate using the ALE method with volatile zinc, sulfur, and manganese compounds as precursors. The method utilizes an organozinc compound, such as diethylzinc or dimethylzinc, for zinc, hydrogen sulfide or an organosulfur compound for sulfur, and an organomanganese compound for manganese. This invention results in a display component with drive-voltage-symmetrical light emission and stable characteristics of luminance level and turn-on voltage.
Another significant patent is related to a multilayer phosphor layer system for an electroluminescent display. This phosphor layer consists of several superimposed host matrix material layers and interposed activator-containing doping layers. The extremely thin doping layers prevent disturbances to the crystal growth of the host matrix material. The layered structure allows for the use of host matrix/activator material pairs that would otherwise be ineffective due to poor efficiency or weak light emission.
Career Highlights
Gitte Harkonen is associated with Planar International Oy Ltd., where he continues to develop innovative technologies in the field of electroluminescence. His work has contributed to advancements in display technologies, enhancing the performance and efficiency of electroluminescent components.
Collaborations
Harkonen has collaborated with notable colleagues, including Erkki Lauri Soininen and Marja Lahonen, who have contributed to his research and development efforts.
Conclusion
Gitte Harkonen's innovative work in electroluminescent technology has led to significant advancements in display components. His patents reflect a commitment to improving the efficiency and performance of electroluminescent systems.