In this study, the delamination status of a display in response to a pad-drop impact is investigated using a computer simulation. Furthermore, reliability of display delamination and stress is assessed, considering the uncertainty factors such as material properties and noise that affect the degree of delamination. Considering that adhesive properties of optical clear adhesive are required to observe the degree of delamination, cohesive zone model is formed, and cohesive parameters are determined by comparing the results of peel test and finite element analysis. In this process, statistical model calibration and validation comprising three steps is employed: uncertainty propagation, statistical model calibration, and statistical model validation. The probability distributions of adhesive properties obtained by this model are compared with those obtained by a deterministic model. The result reveals that the statistical model calibration and validation decreases the cost while retaining the predictive capability. In addition, the reliability of display delamination is evaluated, considering the adhesive properties and the experimental conditions having uncertainties as variables. Based on the variables, the uncertainty of the response function is propagated, and the delamination probability is predicted. The study helps establish that the failure of display delamination in the case of a pad drop simulation can be predicted statistically through reliability assessment.

在这项研究中，使用计算机仿真技术来研究显示器在发生跌落冲击时的分层状态。此外，考虑到不确定因素（例如影响分层程度的材料属性和噪声），评估了显示器分层和应力的可靠性。考虑到需要光学透明粘合剂的粘合性能来观察分层的程度，形成了内聚区模型，并通过比较剥离试验和有限元分析的结果来确定内聚参数。在此过程中，采用包括三个步骤的统计模型校准和验证：不确定性传播，统计模型校准和统计模型验证。将通过此模型获得的粘合特性的概率分布与通过确定性模型获得的概率分布进行比较。结果表明，统计模型的校准和验证在保持预测能力的同时降低了成本。另外，考虑到粘合性能和具有不确定性的实验条件作为变量，评估了显示器分层的可靠性。基于变量，传播响应函数的不确定性，并预测分层概率。这项研究有助于确定可以通过可靠性评估从统计学上预测在焊盘跌落模拟情况下显示器分层的失败。结果表明，统计模型的校准和验证在保持预测能力的同时降低了成本。另外，考虑到粘合性能和具有不确定性的实验条件作为变量，评估了显示器分层的可靠性。基于变量，传播响应函数的不确定性，并预测分层概率。这项研究有助于确定可以通过可靠性评估从统计学上预测在焊盘跌落模拟情况下显示器分层的失败。结果表明，统计模型的校准和验证在保持预测能力的同时降低了成本。另外，考虑到粘合性能和具有不确定性的实验条件作为变量，评估了显示器分层的可靠性。基于变量，传播响应函数的不确定性，并预测分层概率。该研究有助于确定可以通过可靠性评估从统计学上预测在焊盘跌落仿真情况下显示器分层的失败。传播响应函数的不确定性，并预测分层的可能性。这项研究有助于确定可以通过可靠性评估从统计学上预测在焊盘跌落模拟情况下显示器分层的失败。传播响应函数的不确定性，并预测分层的可能性。这项研究有助于确定可以通过可靠性评估从统计学上预测在焊盘跌落模拟情况下显示器分层的失败。