Earticle

초록

영어

In this study, we observed the occurrence of liquid crystal (LC) alignment when unpolarized ultraviolet (UV) light was irradiated onto polyimide (PI) surfaces used as alignment layers. Although numerous studies have previously reported that the oblique irradiation of unpolarized UV light induces optical anisotropy on PI surfaces, the specific alignment mechanism has not been sufficiently elucidated. Generally, it has been understood that the maximum difference between the inherent P-wave and S-wave polarization components occurs when unpolarized UV light is incident at an angle of 45°, a finding that our research group has also previously published. However, practical experimental results have shown that the most superior LC alignment is achieved at an incident angle of approximately 60°, presenting a challenge for theoretical interpretation. In this paper, we successfully demonstrated the LC alignment mechanism using unpolarized UV light by establishing a correlation between theoretical simulations and experimental data, specifically explaining why an incident angle of 60° produces the most favorable alignment in the final LC cell.

목차

Abstract
1. 서론
2. Simulation and Experiment
3. Results and Discussion
References

키워드

저자

• Lyul-Yun Hwang [ Member, Dept. of Electrical Engineering, Dongshin University ]
• Yong-Sung Choi [ 최용성 | Member, Professor, Dept. of Electrical Engineering, Dongshin University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620