Abstract
Predicting the mechanical behavior and failure modes of complex, multi-layer electronic displays can be challenging, as simulations based on standard datasheet values may not represent the properties of a manufactured assembly. This disclosure describes a methodology to create a finite element analysis (FEA) model by calibrating it with empirical test data. The process can involve conducting mechanical tests, such as indentation on both full and partial display stacks, to obtain load-displacement characteristics. This data may then be used to derive effective material properties for a simplified, reduced-layer FEA model. In some applications, failure modes observed in physical testing, like pixel damage or a growing dark spots, are correlated to quantitative strain limits within the calibrated model. This methodology can yield a computationally efficient simulation to predict display performance and failure, which may be used to support design validation.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Akula, Venkata M K and Cammino, Roberto, "Methods for Characterizing Mechanical Behavior and Failure Modes of Electronic Displays", Technical Disclosure Commons, (October 03, 2025)
https://www.tdcommons.org/dpubs_series/8668