本文旨在研究液晶顯示面板(Liquid Crystal Display)歷經落摔衝擊後之動態響應及可靠度。文中以矩形平板來代表顯示面板，並將落摔高度視為ㄧ隨機變數。再以雙自由度的阻尼系統來近似裝設顯示面板的電子系統，其中以底座(Chassis)代表第一自由度，顯示面板代表第二自由度，如將底座及面板視為剛體，據此可計算其支撐邊之位移及加速度。再者，我們將考慮板件實際上為一嵌入襯墊的彈性體，本文乃使用Gorman發展出的疊加法來分析振動系統的固有值問題，再利用應力與應變的關係式求出面板的彎曲應力。文中將分別檢視意外落摔後，阻尼及彈簧常數對板件支撐邊的最大位移停止距離、最大加速度及平板的彎曲應力之影響。

The main purpose of this thesis is to study the dynamic response and the reliability of LCD experienced a drop impact. In the analysis the LCD is represented by a rectangular plate and the drop height is considered as a random variable. A two-degree-of-freedom damped system is used to approximate the LCD equipped electronic system. The two degrees can be used to represent a LCD mounted within the chasis. The chasis represents the first degree of freedom, and the LCD the second. Accordingly the displacements and the accelerations of the chasis and the support contour of the plate element can be evaluated assuming that these components are rigid. Furthermore, we will take into account the fact that the plate element is an elastic body which is clamped into the gasket. The superposition method developed by Gorman is applied to analyse the eigenvalue problem of vibration systems, and the bending stress of elastic plate element is solved using the relation of stress and strain. The effects of spring and damping constants of the support on the maximum displacement stop distance, the maximum acceleration of the contour of the plate element, and the induced bending stress due to an accident drop respectively, will be examed in this study.

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