Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Smart Phone Display Drop Simulation and Design

Smart Phone Display 낙하 Simulation과 설계

  • Kim, Won-Jong (Department of Engineering Science & Mechanics, Graduate School, KIT)
  • 김원종 (금오공과대학교 대학원 기계설계공학과)
  • Received : 2019.04.08
  • Accepted : 2019.06.05
  • Published : 2019.06.30
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Abstract

In this Study, as the structure of smart phone display becomes thin to catch up with slim product trend, the reliability of display module is on the rise as a issue for product design. Especially, almost part of cellular phone should undergo drop test when they fall 1.5m above ground. Thus many manufacturers have considered design guide line using CAE and simulation for more efficive usage of limited resources om the martket. This test simulates the case when cellular phone slips through user's flingers while he is talking on the phone. This paper studies a drop simulation of glass for display in smart phone. This design for reliability improvements are suggested on the basis of the results of FE Analysis and display of smart phone design.

Keywords

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Fig. 1 3D Modeling of Display and JIG

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Fig. 2 FE-Modeling of Display and JIG

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Fig. 3 Display and JIG

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Fig. 4 Glass Front in Display Module

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Fig. 5 JIG & Glass Deformation After Drop Simulation

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Fig. 6 Max Stress of Glass After DropSimulation

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Fig. 7 Compensate the defect of Display’s Glass

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Fig. 8 Simulation Result after of Display Design Change

References

  1. ABAQUS Version 6.10 Documentation
  2. Richard G. Budynas, 1977, Advanced strength and applied stress analysis, McGraw-Hill, Chap. 3.
  3. Electronic Components Research Center, 2005, "[Market analysis of promising electronic components] General situation of mobile communication parts and camera-phone modules."