摘要
为了在短时间内预测白光OLED的寿命,通过加大工作电流开展了3组恒定应力加速寿命实验,利用三参数威布尔(Weibull)函数和双线性回归法(BRM)得到了OLED寿命信息.数值结果表明:加速寿命预测的实验方案是正确可行的;OLED的寿命服从Weibull分布;加速模型符合阿伦尼斯方程;精确计算的加速参数使得快速估算OLED寿命成为可能.
In order to forecast the life of white OLED in shorter time, three groups of constant-stress aeeelerated life tests were conducted by increasing the working current. Life information is obtained by using three-parameter Weibull function and bilinear regression method （BRM）. The numerical results indicate that the scheme of the accelerated life tests is correct and feasible, that the OLED life follows Weibull distribution, and that the accelerated model meets Arrhenius equation. The accurate acceleration parameters enable rapid estimation of the white OLED life.
出处
《宁夏大学学报（自然科学版）》
CAS
2012年第4期362-364,共3页
Journal of Ningxia University(Natural Science Edition)
基金
上海市教育发展基金会晨光计划项目(2008CGB27)
关键词
OLED
寿命预测
Weibull
BRM
organic light emitting device
life prediction
Weibull
bilinear regression method
