Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design
The study proposes and demonstrates an enhancement of a touch display panel (TDP) through a polymer-based protection structure to achieve higher bendability and reliability. The bending performance of the TDP without or with the protection structure designs is addressed using three-dimensional geome...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/106424 |
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| author | Hsien-Chie Cheng Wei-Heng Xu Wen-Hwa Chen Pi-Hsien Wang Kuo-Feng Chen Chih-Chia Chang |
| author_facet | Hsien-Chie Cheng Wei-Heng Xu Wen-Hwa Chen Pi-Hsien Wang Kuo-Feng Chen Chih-Chia Chang |
| author_sort | Hsien-Chie Cheng |
| collection | DOAJ |
| description | The study proposes and demonstrates an enhancement of a touch display panel (TDP) through a polymer-based protection structure to achieve higher bendability and reliability. The bending performance of the TDP without or with the protection structure designs is addressed using three-dimensional geometry-nonlinear finite element analysis and mechanical testing. The elastic properties of the components in the TDP structure are derived from nanoindentation and uniaxial tensile/compressive testing. The calculated results are compared with each other and also against the experimental bending fatigue test data. At last, a design guideline and optimal factor setting for enhanced bending performance are sought through parametric FE analysis and Taguchi experimental design, respectively. The optimal design is compared with the original in terms of bending stress. The simulation results show that bending would create significant tensile and compressive bending stresses on the indium tin oxide/dielectric layers, which are the main cause of several commonly observed failures, such as thin film cracking and delamination, in a thin rigid film coating on a thick compliant substrate. It also turns out that a substrate with a lower stiffness has a better mechanical stability against bending stress. |
| format | Article |
| id | doaj-art-3991f761ffc54ba79dff5f8478890cd7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-3991f761ffc54ba79dff5f8478890cd72025-02-03T06:11:29ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/106424106424Bending Characteristics of Foldable Touch Display Panel with a Protection Structure DesignHsien-Chie Cheng0Wei-Heng Xu1Wen-Hwa Chen2Pi-Hsien Wang3Kuo-Feng Chen4Chih-Chia Chang5Department of Aerospace and Systems Engineering, Feng Chia University, Taichung 40724, TaiwanDepartment of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanDepartment of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanDisplay Technology Center, Industrial Technology Research Institute, Chutung 31040, TaiwanDisplay Technology Center, Industrial Technology Research Institute, Chutung 31040, TaiwanDisplay Technology Center, Industrial Technology Research Institute, Chutung 31040, TaiwanThe study proposes and demonstrates an enhancement of a touch display panel (TDP) through a polymer-based protection structure to achieve higher bendability and reliability. The bending performance of the TDP without or with the protection structure designs is addressed using three-dimensional geometry-nonlinear finite element analysis and mechanical testing. The elastic properties of the components in the TDP structure are derived from nanoindentation and uniaxial tensile/compressive testing. The calculated results are compared with each other and also against the experimental bending fatigue test data. At last, a design guideline and optimal factor setting for enhanced bending performance are sought through parametric FE analysis and Taguchi experimental design, respectively. The optimal design is compared with the original in terms of bending stress. The simulation results show that bending would create significant tensile and compressive bending stresses on the indium tin oxide/dielectric layers, which are the main cause of several commonly observed failures, such as thin film cracking and delamination, in a thin rigid film coating on a thick compliant substrate. It also turns out that a substrate with a lower stiffness has a better mechanical stability against bending stress.http://dx.doi.org/10.1155/2015/106424 |
| spellingShingle | Hsien-Chie Cheng Wei-Heng Xu Wen-Hwa Chen Pi-Hsien Wang Kuo-Feng Chen Chih-Chia Chang Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design Advances in Materials Science and Engineering |
| title | Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design |
| title_full | Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design |
| title_fullStr | Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design |
| title_full_unstemmed | Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design |
| title_short | Bending Characteristics of Foldable Touch Display Panel with a Protection Structure Design |
| title_sort | bending characteristics of foldable touch display panel with a protection structure design |
| url | http://dx.doi.org/10.1155/2015/106424 |
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