Analysis of the Electro-optical Characteristics of Thin Film Electroluminescent Devices
In this paper, we present the electro-optical characteristics of EL devices made by SVA. A Sawyer-Tower circuit has been set up to evaluate the luminous efficiency based on the measurements of luminance and transferred charge of the EL device. A program is developed to plot the luminance and efficiency as a function of voltage from the input of measurement data. These plots are useful for evaluating the performance of the EL devices and providing feedback for the optimization of thin film structure and processing parameters. When the modulation voltage is 30 V, it is shown that the luminance and efficiency of the yellow (ZnS: Mn) EL device is L30 =250 cd/m2 and η30 = 1.3 lm/W, respectively. Furthermore , the color spectra and the CIE color coordinates of various EL samples (green and blue) developed by SVA are evaluated and discussed.
Luminance Efficiency Spectrum
Jianbo Xu Junhui Lou Xin Yang Tian Xiao
Institute of Image Processing and Pattern Recognition, Shanghai Jiaotong University,Shanghai, 200240 Flat Panel Display Technology R& D Center, SVA Electron Co., Ltd.,196 Ouyang Rd., Shanghai 200081, C
国际会议
上海
英文
1596-1599
2007-03-12（万方平台首次上网日期，不代表论文的发表时间）