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The Journal of The Korea Institute of Intelligent Transport Systems Vol.6 No.2 pp.138-145
발광형 교통안전표지용 청색 OLED의 특성분석에 관한 연구
A Study on the Characteristic Analysis of Blue OLED for the Luminous Traffic Safety Mark
Abstract
Luminous traffic safety mark is restricted to use only the place that has a thick fog, many night traffic accidents, limited field of view due to structure of road. Recently, LEDs are used for luminous traffic safety mark, but we propose an organic LED for a novel luminous traffic safety mark in the near future. The device structure was . The characteristics of the device are most efficient on occasion of using gas plasma treatment. Current density is luminance , and current efficiency 3.53cd/A at an applied voltage of 10V. The maximum EL wavelength of the fabricated blue organic light-emitting device is 456nm. CIE color coordinates are x=0.1449 and y=0.1633, which is similar to NTSC deep-blue color with CIE color coordinates of x=0.14 and y=0.08.
