Acta Optica Sinica, Volume. 29, Issue 10, 2885(2009)
Light Out-Coupling Efficiency in Flexible Organic Light-Emitting Devices
Based on the geometrical optics model,the expression of flexible organic light emitting devices (FOLED)′s out-coupling efficiency was presented. The influence of substrate curvature and its thickness,and organic layer′s refractive index on the performance of the FOLED′s out-coupling efficiency was studied,and the variation of out-coupling efficiency between FOLED and plane organic light emitting display (OLED) are contrasted as well. The result shows that:the out-coupling efficiency is enhanced with increased substrate curvature and its thickness,but is reduced with increased organic layer′s refractive index for outcurved substrate. The out-coupling efficiency is reduced with increased substrate curvature and thickness,and is also reduced with increased organic layer′s refractive index for incurvated substrate. The out-coupling efficiency of OLED is reduced with increased organic layer′s refractive index.
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Xiong Zhiyong, Li Hongjian, Wang Junxi, Yuan Ming, Zhou Ziyou, Li Xueyong. Light Out-Coupling Efficiency in Flexible Organic Light-Emitting Devices[J]. Acta Optica Sinica, 2009, 29(10): 2885
Category: Optical Devices
Received: Nov. 28, 2008
Accepted: --
Published Online: Oct. 19, 2009
The Author Email: Zhiyong Xiong (xzy0201@126.com)