Browse > Article

Study on The Anti-Shock Performance Evaluation of TFT-LCD module for Mobile IT Devices  

Kim Byung-Sun (성균관대학교 대학원)
Kim Jung-Woo (성균관대학교 대학원)
Lee Dock-Jin (성균관대학교 대학원)
Choi Jae-Boong (성균관대학교 기계공학부)
Kim Young-Jin (성균관대학교 기계공학부)
Baik Seung-Hyun (성균관대학교 기계공학부)
Chu Young-Bee (삼성전자)
Koo Ja-Choon (성균관대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.7, 2006 , pp. 130-137 More about this Journal
Abstract
TFT-LCD(Thin Film Transistor Liquid Crystal Display) module is representative commercial product of FPD(Flat Panel Display). Thickness of TFT-LCD module is very thin. It is adopted for major display unit for IT devices such as Cellular Phone, Camcorder, Digital camera and etc. Due to the harsh user environment of mobile IT devices, it requires complicated structure and tight assembly. And user requirements for the mechanical functionalities of TFT-LCD module become more strict. However, TFT-LCD module is normally weak to high level transient mechanical shock. Since it uses thin crystallized panel. Therefore, anti-shock performance is classified as one of the most important design specifications. Traditionally, the product reliability against mechanical shock is confirmed by empirical method in the design-prototype-drop/impact test-redesign paradigm. The method is time-consuming and expensive process. It lacks scientific insight and quantitative evaluation. In this article, a systematic design evaluation of TFT-LCD module for mobile IT devices is presented with combinations of FEA and testing to support the optimal shock proof display design procedure.
Keywords
TFT-LCD; Anti-Shock Performance Evaluation; Impact Tester; Mobile IT device;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Lee, J. K. and Choi, S. S., 'The Study of Impact Analysis of TFT-LCD Module,' KSME Journal A, Vol. 28, No.5, pp. 571-577, 2004   과학기술학회마을   DOI
2 Harris, C., 'Shock And Vibration Handbook,' McGRAW-HILL, 1995
3 Hallquist, J., 'LS-DYNA Theoretical Manual,' Livermore Software Technology Corporation, 1998
4 LS-DYNA Users Manual, Ver. 960, Livermore Software Technology Corporation, 2001
5 Bathe, K. J., 'Finite Element Procedures in Engineering Analysis,' Prentice Hall, 1982
6 I-DEAS Update Training, SDRC, 2000
7 Seo, H. W., 'Development of Integrated CAE System for Mechanical Shock Proof Design of TFT-LCD Modules,' Journal of the Korean Society of Precision Engineering, Vol. 21, No.9, pp. 135-141,2003   과학기술학회마을
8 Park, S. H., 'Analysis on the Fracture of a Panel Glass in a Liquid Crystal Display Module under Mechanical Shock,' Journal of the Korean Society of Precision Engineering, Vol. 17, No. 12, pp. 76-81 2000   과학기술학회마을
9 Wu, J., 'Drop/Impact Simulation and Test Validation of Telecommunication Product,' InterSociety Conference on Thermal Phenomena, pp. 330-336, 1998   DOI
10 Moon, S. J., 'A Shock Damage Evaluation Study of Large Digital TV Display Modules,' Journal of KSNVE, Vol. 14, No. 10, pp. 945-954, 2003   과학기술학회마을   DOI