| dc.description.abstract | This research is centered on the impact test analysis and test examination for the light guide plate of the TFT-LCD(Thin film transistor liquid crystal display)module. Due to extremely short duration of impact test, it is quite difficult to realize the impact response. This research is adopted with two methods — the impact test for examination and the finite element analysis model. Through the finite element analysis and experiment for truth examination of TFT-LCD module during impact test, we propose the adequate design improvement for the structure design. In the purpose of the evaluation of TFT-LCD module design before the developing mold period, the simulation of impact test on the TFT-LCD module is analyzed by MSC-Dytran finite element software which can predict the whole dynamic action of TFT-LCD module during impact test and compare to the experimental results to modify the analysis model. Thus, we can improve the design on TFT-LCD module and establish the analysis evaluation method of the TFT-LCD module design.
The impact test is aimed to understand the maximum indicating value of impact resistance for products. The large value means that products come with higher reliability. In this research, we conducted Y direction impact onto products to investigate the impact response. Through impact test, we could figure out the structure weakness of products and also increased the product reliability. The test results not only reveal the possible deformation of the TFT-LCD module but also examine the reasonability for the finite element analysis model. Under the process of the finite element analysis of the TFT-LCD module, we found that Light guide plate linkage parts would be affected by impacted and showed high stress area phenomenon which match the crack parts happening to the impact test. Thus, we proposed further design improvement by means of the finite element analysis. The improvement was that we combine the copper cylinder by adding stopper. After the comparison of the simulation analysis and the impact test, we confirmed that the improvement effectively and also eliminate the high stress area phenomenon.
This research developed the evaluated model for TFT-LCD module design after testing and simulation. It can be effective for the design of the TFT-LCD module by applied to experimental and value simulated methods. Thus it can help designers pre-estimate the product strength during the beginning of the development and also shorten the design duration, quickly bring out to mass production to exalt the industry competence of the products. | en_US |