A flexible screen bonding method based on numerical simulation of finite element model

Abstract

The present invention provides a flexible screen bonding method based on finite element model numerical simulation, which includes the following steps: S1: Establish a bonding simulation model, the bonding simulation model includes a bonding platform Stage, a material to be bonded, a roller Drum, and Set the roller outer ring Sheet around the roller Drum, set the bonding platform Stage and the roller Drum as discrete rigid bodies, and assign material properties; set the material to be bonded and the outer ring Sheet as flexible deformable bodies, and assign material attributes; S2: Set the contact mode for the fitting simulation model, and add constraints and loads; S3: Mesh the fitting simulation model; S4: Set different boundary conditions and material parameters and perform simulation solution, and compare the simulation results under different boundary conditions . The invention provides a reference range for the selection of actual processing materials, the time required for bonding, the application of loads, etc., thereby guiding production and improving work efficiency.

Description

technical field [0001] The invention relates to the technical field of finite element analysis, in particular to a flexible screen bonding method based on numerical simulation of a finite element model. Background technique [0002] With the popularization of display terminals, people have more and more stringent requirements on display devices, which not only require them to be compact and portable, but also hope that they can provide larger display sizes for leisure and entertainment. This is mutually restrictive for traditional display devices. If you want to be portable, the screen size must be reduced, and the entertainment experience will be worse; if a larger display screen is provided, its size will inevitably become larger and it is not easy to carry. The emergence of flexible screens provides the possibility to solve the above problems. However, the development of flexible screens faces problems such as creases, bending damage, and peeling of the adhesive layer. ...

AI Technical Summary

Problems solved by technology

However, the development of flexible screens faces problems such as creases, bending damage, and peeling of the adhesive layer.

The polymer polymer materials used in flexible screens contain complex mechanical behaviors, such as elasticity, viscoelasticity, superelasticity and other mechanical properties. It is difficult to calculate and solve the force and deformation during the bonding process simply by using traditional theoretical analysis. However, the cost of the test method is high, and it takes a long time to test, and can only obtain the mechanical state at the initial moment and the last moment, and cannot accurately know the deformation process in the middle, and cannot help developers fundamentally understand the problem.

Moreover, during the deformation process of the flexible module structure, different devices are mutually restricted, and the force situation is very different from that of a single device when it is bent.

If the analysis is only for a single device, it cannot accurately reflect the real force of the module

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