6 March 2013 Printing method for organic light emitting device lighting
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Abstract
Organic Light Emitting Device (OLED) has a characteristic to change the electric energy into the light when the electric field is applied to the organic material. OLED is currently employed as a light source for the lighting tools because research has extensively progressed in the improvement of luminance, efficiency, and life time. OLED is widely used in the plate display device because of a simple manufacture process and high emitting efficiency. But most of OLED lighting projects were used the vacuum evaporator (thermal evaporator) with low molecular. Although printing method has lower efficiency and life time of OLED than vacuum evaporator method, projects of printing OLED actively are progressed because was possible to combine with flexible substrate and printing technology. Printing technology is ink-jet, screen printing and slot coating. This printing method allows for low cost and mass production techniques and large substrates. In this research, we have proposed inkjet printing for organic light-emitting devices has the dominant method of thick film deposition because of its low cost and simple processing. In this research, the fabrication of the passive matrix OLED is achieved by inkjet printing, using a polymer phosphorescent ink. We are measured optical and electrical characteristics of OLED.
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Hyun Chul Ki, Hyun Chul Ki, Seon Hoon Kim, Seon Hoon Kim, Doo-Gun Kim, Doo-Gun Kim, Tae-Un Kim, Tae-Un Kim, Snag-Gi Kim, Snag-Gi Kim, Kyung-Jin Hong, Kyung-Jin Hong, Soon-Yeol So, Soon-Yeol So, } "Printing method for organic light emitting device lighting", Proc. SPIE 8622, Organic Photonic Materials and Devices XV, 86221J (6 March 2013); doi: 10.1117/12.2003568; https://doi.org/10.1117/12.2003568
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