플렉시블 디스플레이에서 ITO층의 파괴 특성을 고려한 설계연구A Study on the Design of Flexible Display Considering the Failure Characteristics of ITO Layer
- Other Titles
- A Study on the Design of Flexible Display Considering the Failure Characteristics of ITO Layer
- Authors
- 김민규; 채수원; 박상백
- Issue Date
- 2013
- Publisher
- 한국정밀공학회
- Keywords
- Finite element method (유한요소법); Flexible display (플렉시블 디스플레이); Bending test (굽힘 시험); Barrier layer (차단막); Nano-indentation (나노인덴테이션)
- Citation
- 한국정밀공학회지, v.30, no.5, pp.552 - 558
- Indexed
- KCI
- Journal Title
- 한국정밀공학회지
- Volume
- 30
- Number
- 5
- Start Page
- 552
- End Page
- 558
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/105610
- ISSN
- 1225-9071
- Abstract
- In recent years the interest on flexible display has been increasing as a future display due to its bendable characteristics. An ITO(indium tin oxide) layer, which is part of a flexible display, can be broken easily while bending because it is made of brittle materials. This brittle property can cause the malfunction of flexible display. To analyze fracture characteristics of ITO layer, bending test was conducted commonly. However, it is not possible to know specific phenomena on bended ITO layer by simple bending test only. Accordingly, in this study, the FE(finite element) model is developed similarly to a real flexible display to analyze stress distribution of flexible display under bending condition, especially on ITO layer. To validate FE model, actual bending test was conducted and the test results were compared with the simulation results by measuring reaction forces during bending. By using the developed model, FE analysis about the effect of design parameter (Thickness & Young’s Modulus of BL) on ITO Layer was performed. By explained FE analysis above, this research draws a conclusion of reliable design guide of flexible display,especially on ITO layer.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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