- Volume 9 Issue 4
The FPDs(Flat Panel Displays) such as LCD(Liquid Crystal Display) and PDP(Plasma Display Panel) and OLED(Organic Light Emitting Diode), recently, have been substituted for CRT(Cathode Ray Tube) displays because they have a convex surface, small volume, light weight and lower electric power consumption. The productivity of FPDs is greatly dependent on the area of thin glass panel with 0.6 - 0.8mm thickness because FPDs are manufactured by cutting a large-scaled thin glass panel with patterns to the required product dimensions. So FPD's industries are trying to increase the area of thin glass panel. For example, the thin glass panel size of the 8th generation is 2,200mm in width, 2,600mm in length and 0.7mm in thickness. The air flows both in the thin glass panel and in the porous PE-plate surface were modeled and analyzed, from which a working condition was estimated. The thin glass panel on the porous PE-plate surface with self-lubricating characteristics was investigated and compared with that on the square duct floating bar surface with many holes of 1mm diameter when the thin glass panel contacts the floating bar surface due to malfunction of electric power supply.
glass panel;porous PE-plate;non-contact air floating;Flat Panel Display: FPD;Liquid Crystal Display: LCD;air fluid analysis;CFX
- F. Poh, T. Higuchi, K. Yoshida and K. Oka, "Non-contact transportation system for thin glass plate utilizing combination of air bearing and electrostatic force", SCIE'99, 212, B-2, pp.1053-1058, 1999.
- T. Amano, Y. K. Nakamura, S. Ueda, Y. Hashimoto, "A multi-transducer near field acoustic levitation system for non-contact transportation of large-scaled planar objects", Jpn. J. Applied Physics, Vol.39, part I No.5B, pp.2982-2985, 2000. https://doi.org/10.1143/JJAP.39.2982
- 문인호, 조상준, 김동권, 기몽진, 황영규, “공기부상 웨이퍼 낱장이송 시스템의 부상 및 이송특성”, 2004 한국반도체및디스플레이장비학회 춘계학술대회논문집, pp.72-84, 2004.
- H. J. Jun, K. S. Kim and I. T. Im, "Numerical Study on the Air-Cushion Unit for Transportation of Large-Sized Glass Plate", J. of the Semiconductor & Display Equipment Technology, Vol.6, No.1, pp.59-64, March 2007.
- I. T. Im, H. J. Jun and K. S. Kim, "Numerical study on the air-cushion glass transportation unit for LCD panels", J. of the Semiconductor & Display Equipment Technology, Vol.5, No.1, pp.27-31, 2006.
- 김도훈, 박형준, 문희곤, 이지훈, 노태정, 박범석 “LabVIEW를 이용한 LCD용 공기부상이송 자동화의 Nozzle 압력 측정에 관한 연구”, 2007 대한기계학회 추계학술발표논문집, pp. 881-886, 2007, 10.
- 황성현, 최현창, 노태정, 손태영, 박범석, “비접촉 평판 디스플레이 이송장치에서의 양력을 고려한 평판 디스플레이의 처짐 해석”, 대한기계학회논문집A권, 제32권 제5호, pp. 451-457, 2008.
- 손태영, 최범석, 노태정, 최현창, 공기훈, 권장렬, "FPD 이송시스템의 유로망 해석에 관한 연구", 한국창조공학회지, pp. 85-92, 2006.11.
- C. A. Fletcher, Computational Technique for Fluid Dynamics(Vol. I & II), Springer- Verlag, 1991.
- 신병록, 장근식, 조강래, 전산유체역학-기초와 응용, 대영사, 1993.
- CFX User's Guide, 2005.