절삭 깊이의 무작위 제어를 적용한 다이아몬드 선삭공정에서 소재회전 반경에 따른 미세패턴의 크기변화 분석연구
A study on size variation of micro-pattern according to turning radius of workpiece in diamond turning with controlled random cutting depth
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초록
Ultra-high brightness and thin displays need to optical micro-patterns which can uniformly diffuse the lights and low loss. The micro random patterns have characteristics to rise the optical efficiency such as light extraction, uniform diffusion. For this reason, various fabrication processes are studied for random patterns. In this study, the micro random patterns were machined by diamond turning which used a controlled cutting tool path with random cutting depth. The machined patterns had random shape and directionality along the circumferential direction. The average width and length of machined random pattern according to rotation radius were 40.13~55.51and 37.25~59.49, and these results were compared with the designed result. Also, the machining error according to rotation radius in diamond turning using randomly controlled cutting depth was discussed.
Abstract
Ultra-high brightness and thin displays need to optical micro-patterns which can uniformly diffuse the lights and low loss. The micro random patterns have characteristics to rise the optical efficiency such as light extraction, uniform diffusion. For this reason, various fabrication processes are studied for random patterns. In this study, the micro random patterns were machined by diamond turning which used a controlled cutting tool path with random cutting depth. The machined patterns had random shape and directionality along the circumferential direction. The average width and length of machined random pattern according to rotation radius were 40.13~55.51and 37.25~59.49, and these results were compared with the designed result. Also, the machining error according to rotation radius in diamond turning using randomly controlled cutting depth was discussed.
참고문헌 (5)
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- S Katz, "Using Diffractive Optical Elements", pp.83~86 (2018), Optik&Photonik
- L Zhou, "Built-in Random Inverted Micro-cone Arrays: Nanosecond Laser-induced Surface Texturing for Optical Outcoupling Enhanced Flexible White Organic Light-emitting Diodes", Organic Electronics, pp.1~34 (2018)
- J-Y Jeong, "Fabrication and Optical Chracterization of Micro Random Patterns On a Roll Metal Mold", Micro and Nano Engineering Conference, pp.1~ (2017)
- J-Y Jeong, "Fabrication and Optical Characterization of Micro Random Patterns On a Roll Metal Mold", Micro and Nano Engineering Conference, pp.1~ (2017)