84‐2: Study on Reliability for Impact and Rolling of Film Stacks in Rollable AMOLED Display by Finite Element Analysis
In this study, the film stacks of rollable AMOLED display are analyzed and designed by FEA (finite element analysis). The control for the layer thicknesses and stiffness of film stacks are two of the key designs for rollable AMOLED display. Also, the use of OCA (optically clear adhesives) brings a p...
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| Veröffentlicht in: | SID International Symposium Digest of technical papers 2020-08, Vol.51 (1), p.1265-1268 |
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| container_title | SID International Symposium Digest of technical papers |
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| creator | Cheng, Aries Wei, Qiaoqiao Jin, Jian Su, Tsungyi Peng, DZ |
| description | In this study, the film stacks of rollable AMOLED display are analyzed and designed by FEA (finite element analysis). The control for the layer thicknesses and stiffness of film stacks are two of the key designs for rollable AMOLED display. Also, the use of OCA (optically clear adhesives) brings a particular effect to the setting of neutral plane. In the FEA, constitutive model of hyperelasticity is chosen to describe the mechanical behavior of adhesives since the nonlinear elastic behavior and large deformation characteristics of adhesives. A 7.4‐inch WQHD prototype rollable AMOLED display has been successfully rolled up more than 15,000 cycles in dynamic at 10mm rolling radius without damages. |
| doi_str_mv | 10.1002/sdtp.14110 |
| format | Article |
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| subjects | Active matrix displays Adhesives Constitutive models Elastic deformation Elasticity FEA (finite element analysis) Finite element analysis Finite element method hyperelasticity impact reliability Mechanical properties neutral plane OCA (optically clear adhesives) rollable AMOLED display rolling reliability Stacks Stiffness Thickness |
| title | 84‐2: Study on Reliability for Impact and Rolling of Film Stacks in Rollable AMOLED Display by Finite Element Analysis |
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