Cooling Analysis of Super Precision and Large Stage for OLED

  • Kim, Bo-Seon (Department of Mechanical Engineering, Soonchunhyang University) ;
  • Kim, Kug Weon (Department of Mechanical Engineering, Soonchunhyang University)
  • Received : 2018.12.10
  • Accepted : 2018.12.20
  • Published : 2018.12.31

Abstract

As the OLED industry develops, display equipment is becoming larger. As a result, the stage required for display equipment is getting bigger. This enlargement led to increase in OLED production and industrial development. However, due to the large scale of the stage, other problems due to overheating and overheating caused by heavy load on the linear motor, which is mainly used in the stage, must be solved. In this study, a linear motor equipped with a cooling channel is modeled and the three - dimensional heat conduction flow analysis for this model is simulated using Fluent to analyze the cooling efficiency and cooling efficiency according to the cooling water flow rate. As a result, the cooling channel was effective and the cooling effect and efficiency were the best when the flow rate was about 5 ~ 10 L./min. In addition, the cooling effect is increased when the flow rate is increased, but the efficiency is significantly lowered when the flow rate is more than the predetermined value.

Keywords

References

  1. Tsai, M.-J. and Juan, C.-J., "Implementation of a novel system for measuring the lifetime of OLED panels," IEEE Transactions on Consumer Electronics, Vol. 49, No. 1, pp. 1-5, 2003. https://doi.org/10.1109/TCE.2003.1205448
  2. Lee, D. E., Kim, S. H. and Lee, E. K., "Development of a Hybrid Substrate Handler for Precision Alignment," Journal of the Korean Society of Semiconductor & Display Technology, Vol. 6, No. 1, pp. 1-6, 2007.
  3. Yim, K. K., Seo, H. I., Cho, H. C., Kim, K. S. and Kang, H. S., "Stage System for LCD Exposure Equipment Using Touch-type Displacement Sensor," Journal of the Korean Society of Semiconductor & Display Technology, Vol. 6, No. 1, pp. 7-10, 2007.
  4. Park, J.-Y., Han, S.-Y., Lee, N.-H., Choi, J.-O. and Shin, H.-S., "Alignment System Development for producing OLED using Fourth-Generation Substrate," IMID/IDMC/ASIA DISPLAY '08 DIGEST, pp. 873-878, 2008.
  5. Minami, H., Mori, J., Iwai, S, Moriya, H. and Watanabe, N., "Manufacturing and Inspection Equipment for Efficient Production of Large LCDs," Hitachi Review, Vol. 60, No. 5, pp. 228-232, 2011.
  6. Shin, D. and Li, D., "Comparative Analysis for Kinematics and Accuracy for High-Precision 4-Axis UVW Stage," Journal of the Korean Society for Precision Engineering, Vol. 35, No. 9, pp. 867-874, 2018. https://doi.org/10.7736/KSPE.2018.35.9.867