The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs
Structural optimization has always been the main solution for increasing the stability of flexible screens. The bending method used to test a flexible display screen is an important factor in assessing the functionality and practicability of the electronic device. The bending mode of the display scr...
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IEEE
2021
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oai:doaj.org-article:046b7268b08a4d13b6bae211a8bebe4e2021-11-20T00:01:41ZThe Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs2169-353610.1109/ACCESS.2021.3127185https://doaj.org/article/046b7268b08a4d13b6bae211a8bebe4e2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9611240/https://doaj.org/toc/2169-3536Structural optimization has always been the main solution for increasing the stability of flexible screens. The bending method used to test a flexible display screen is an important factor in assessing the functionality and practicability of the electronic device. The bending mode of the display screen impacts the screen service life. In this study, 2D simulation models with different bending radii, bending directions, and bending times were constructed in ABAQUS and compared to determine the effects on the flexible screen from changing the stress value, the location of the stress concentration area and the deformation state of the screen under U- and water-drop-shaped bending. The simulation results show that U-shaped bending severely strains the junction between the bent and unbent areas of a model, whereas water-drop-shaped bending can avoid such problems. In addition, the results of multiple bending experiments were used to determine an appropriate reserved length of r=2.1~2.4 mm for a model under water-drop-shaped bending.Bo WangZeyu ZhangWeiwei SuWenxin ZhangQiujun WangDi ZhangFang ZhangIEEEarticleSimulationmotion modeactive matrix organic light-emitting diode (AMOLED)Electrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 152442-152448 (2021) |
| institution |
DOAJ |
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DOAJ |
| language |
EN |
| topic |
Simulation motion mode active matrix organic light-emitting diode (AMOLED) Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
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Simulation motion mode active matrix organic light-emitting diode (AMOLED) Electrical engineering. Electronics. Nuclear engineering TK1-9971 Bo Wang Zeyu Zhang Weiwei Su Wenxin Zhang Qiujun Wang Di Zhang Fang Zhang The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| description |
Structural optimization has always been the main solution for increasing the stability of flexible screens. The bending method used to test a flexible display screen is an important factor in assessing the functionality and practicability of the electronic device. The bending mode of the display screen impacts the screen service life. In this study, 2D simulation models with different bending radii, bending directions, and bending times were constructed in ABAQUS and compared to determine the effects on the flexible screen from changing the stress value, the location of the stress concentration area and the deformation state of the screen under U- and water-drop-shaped bending. The simulation results show that U-shaped bending severely strains the junction between the bent and unbent areas of a model, whereas water-drop-shaped bending can avoid such problems. In addition, the results of multiple bending experiments were used to determine an appropriate reserved length of r=2.1~2.4 mm for a model under water-drop-shaped bending. |
| format |
article |
| author |
Bo Wang Zeyu Zhang Weiwei Su Wenxin Zhang Qiujun Wang Di Zhang Fang Zhang |
| author_facet |
Bo Wang Zeyu Zhang Weiwei Su Wenxin Zhang Qiujun Wang Di Zhang Fang Zhang |
| author_sort |
Bo Wang |
| title |
The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| title_short |
The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| title_full |
The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| title_fullStr |
The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| title_full_unstemmed |
The Influence of the Bending Mode on the Mechanical Behavior of AMOLEDs |
| title_sort |
influence of the bending mode on the mechanical behavior of amoleds |
| publisher |
IEEE |
| publishDate |
2021 |
| url |
https://doaj.org/article/046b7268b08a4d13b6bae211a8bebe4e |
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