Biography
Prof. Akiyoshi Mikami
Prof. Akiyoshi Mikami
Kanazawa Institute of Technology, Japan
Title: Highly Efficient and Wide-Color-Gamut Organic Light-Emitting Devices based on the Multi-Scale Optical Design
Abstract: 
Organic light-emitting devices (OLEDs) are expected as a high performance flat panel display, including the capability of flexible and transparent panels.Luminescent properties such as power efficiency and color purity have been improved by introducing vearious optical design technologies for the enhancement of light-extraction process. It will be shown that the external micro-cavity effect coupled with surface plasmon resonance is useful for the improvement of the color purity of the emission and out-coupling efficiency. In results, color coordinates of three primary color emission approaches to BT.2020 national standard and an external quantum efficiency becomes higher by a factor of about 1.5. The effect and behavior of optical intractionin waveguide and surface plasmonmodesin an OLED will be discussed from a viewpoint of multi-scale optical design analysis.
Biography: 
Akiyoshi Mikami received his Doctor in electrical engineering in 1985 from Osaka City University Japan. Subsequently, as a researcher at Sharp Corporation, he worked in Central Research Labs. and Liquid Crystal Labs for 14 years. In 1999, he was inaugurated as the professor of Kanazawa Institute of Technology, where he engaged in electronic and optical engineering. Recent research field is the optical design theory and technology for improving the performance of organic light-emitting devices.