The flexible organic light-emitting devices (FOLED) is an important development direction in the next generation of display technology while it can be fabricated on the flexible substrate for flexible display application.

Based on the geometrical optics model,the optical characteristics of our FOLED with a structure of top reflecting mirror/organic material/bottom reflecting mirror/flexible substrate were discussed.

In this paper an active vibration control system of 2D flexible plate is presented by using piezoelectric sensors and actuators.

The rigid-flexible dynamics of a flexible plate considering thermal effect was investigated.

The finite element method was used for the system discretization and the coupling dy- namic equations of flexible plate attached to a central rigid body were obtained by using Jourdain s veloc.

This paper analyzes the shielding efficiency principle of modular from structural design angle, introduces several kinds of commonly used measures to improve shielding efficiency of modular,and especially explain structure making up and shielding mechanism of a new type of cover board named flexible cover board.

In calculation of flexible tube sheet,it is a tedious work to determine the largest non-supported circle and supported area using conventional geometrical technique.