반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

곡면 코팅 공정을 위한 수직 지향 경로 생성 알고리즘 적용에 대한 연구

A Study on Application of Normal Oriented Path Generation Algorithm for Curved Surface Coating Process

  • 김건호 (한국생산기술연구원 스마트생산시스템연구부문) ;
  • 김기현 (한국공학대학교 메카트로닉스공학부) ;
  • 박재현 (한국생산기술연구원 스마트생산시스템연구부문)
  • Gun Ho Kim (Smart Manufacturing System R&D Department, Korea Institute of Industrial Technology) ;
  • Kihyun Kim (Mechatronics Engineering Department, Tech University of Korea) ;
  • Jaehyun Park (Smart Manufacturing System R&D Department, Korea Institute of Industrial Technology)
  • 투고 : 2023.11.29
  • 심사 : 2023.12.14
  • 발행 : 2023.12.31
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초록

This study is normal orientation technology of slit coating equipment to improve the quality of curved displays. Currently, the demand for curved displays is increasing significantly due to advantages such as screen immersion or design in various industries. Accordingly, changes in the display coating process are essential. In the curved display coating process, unlike the existing flat coating process, the nozzle must be rotated along the curvature of the curved surface to spray the coating solution. The coating solution must be applied while maintaining a uniform thickness. If the thickness of the coating liquid applied to the target surface is non-uniform, the quality of the product may be degraded such as image quality deterioration and light spreading. This paper presents technology and experimental results for keeping the nozzle of slit coating equipment perpendicular to the curved surface and is expected to contribute to the quality improvement of curved displays.

키워드

과제정보

본 연구는 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원을 통해 수행되었습니다. (Nos. 20014812 and KM230030).

참고문헌

  1. G.H Kim, Y.H Song, "Plastic Substrates for Flexible Display", Electronics and Telecommunications Trends, Vol. 23(5), pp. 111-123, 2008. https://doi.org/10.22648/ETRI.2008.J.230513
  2. Sung Hee Ahn, Byungki Jin, Sanghyun Kwon, Myung Hwan Yun, "A Research on Curved Display Comparing to Flat Display Regarding Posture, Tilt Angle, Focusing Area and Satisfaction", J Ergon Soc Korea, Vol. 33(3), pp. 191-202, 2014. https://doi.org/10.5143/JESK.2014.33.3.191
  3. Nooree Na, Kyeong Ah Jeong, Hyeon Jeong Suk, "Do Curved Displays Make for a More Pleasant Experience?", SPIE-IS&T Vol. 9394 939419-1, 2015.
  4. Hakkinen, J., Polonen, M., Salmimaa, M., and Hautanen, J., "Reading experience with curved hand-held displays," Journal of the Society for Information Display, Vol. 16(11), pp. 1099-1103, 2008. https://doi.org/10.1889/JSID16.11.1099
  5. Sung Hwan Choi, "Trends of flexible display and wearable devices", The Korean Institute of Electrical Engineers, Vol. 71(11), pp. 45-48, 2022.
  6. D. Satas, "Coating Technology Handbook", Marcel Dekker, Inc., New York, 19 (1991).
  7. Jeong Woo Woo, Dal Je Sung, Min Young Lyu, "Analysis of coating Uniformity through Unsteady and Steady State Computer Simulation in Slot Coating", J. Polymer Vol. 38(5), pp. 640-644. 2014. https://doi.org/10.7317/pk.2014.38.5.640
  8. Si Hyung Lee, Hyun Jung Koh, Hyun Wook Jung, Jae Chun Hyun, "An Optimal Die Design for the Coating Uniformity of Non-Newtonian Liquids in Slot Coating Process", The Korean Institute of Chemical Engineers, Vol. 49(3), pp. 314-319, 2011. https://doi.org/10.9713/kcer.2011.49.3.314
  9. T.H Kim, D.Y LEE, D.J Sung, M.Y Lyu, "Coater Die Design and Coating Quality Evaluation in the Machine Direction of Slot Coating Through Computer Simulation", Elastomers and Composites, Vol. 48(4), pp. 282-287, 2013. https://doi.org/10.7473/EC.2013.48.4.282
  10. Songeun Hong, Kyungjun Jeon, Youngkyun Shin, Jongwoon Park, "Fabrication of Anti-moire Filter with Light Diffusing Particles Using Slot-die Coating", Journal of the Semiconductor & Display Technology, Vol. 21(4), pp. 33-38, 2022.
  11. Chang Hwa Woo, "Research Trend of OCA (Optically Clear additive) for Display Panel by Analysis of Patent and Papers Publication", Journal of the Semiconductor & Display Technology, Vol. 17(3), pp. 75-81, 2018.
  12. Jinyoung Lee, Jongwoo Park, "Effect of the Microtip Length in a Slot-die Head on Fine Stripe Coatings", Journal of the Semiconductor & Display Technology, Vol. 18(4), pp. 69-74, 2019.
  13. Semi Lee, Jaewook Nam, "Analysis of Slot Coating Flow Under Tilted Die", J. AIChE, Vol. 61(5), pp. 1745-1758, 2015. https://doi.org/10.1002/aic.14752
  14. Hsien-Ming Chang, Yu-Rong Chang, Chi-Feng Lin, Ta-Jo Liu, "Comparison of vertical and horizontal slot die coatings", J. Polymer Engineering & Science, Vol. 47, pp. 1927-1936, 2007. https://doi.org/10.1002/pen.20910