The steady state damp heat test and dry heat test of plastic substrate based displays

The plastic substrate based display has many advantages in practical applications of electronics, such as portable, flexible, super thin etc. However, its reliability may significantly impact its performance under the specific environmental conditions. Among the environmental factors, the temperature and humidity are two of the most important factors which may affect the performance of the displays dramatically. In this study, to evaluate the reliability and adaptability under the high temperature and the high humidity, the new environmental testing process for the plastic substrate based displays is presented. It consists of the damp heat under steady state test and the dry heat test, together with visual inspections and electro-optical property measurement. Based on the test, the analysis and assessment of the reliability and adaptability of the plastic substrate based displays under high temperature and high humidity were further performed.