Publications

Journal Papers (33)

2024 (1)

1. “Reconfigurable Narrow-Band Bandpass Filter Using Electrically-Coupled Open-Loop Resonators Based on Liquid Crystals”, Jinyoung Choi, Junseok Ma, Hyunwoo Oh, and Wooksung Kim*, J. Phys. D: Appl. Phys. (2024).

2023 (9)

1. "Characterization of Nematic Liquid Crystal Dielectric Properties using Complementary FSS featuring Electrically Small Cell Gaps across a wide Sub-THz Range", Daehyeon Kim, Jinyoung Choi, Youngno Youn, Suho Chang, Cheonga Lee, Wooksung Kim, and Wonbin Hong, IEEE Trans. Antennas Propag. (2023).

2. "Full‐color Generation Via Photo‐tunable Mono Ink for Fast and Elaborate Printings", Yun Hyeok Lee*, Won Jun Song, Jae-Man Park, Gimin Sung, Min-Gyu Lee, Miji Kim, Sungeun Park, Ju Sang Lee, Miyoung Kim, Wook Sung Kim, Jeong-Yun Sun*, Adv. Mater. (2023).

3. “Liquid Crystals for Advanced Smart Devices with Microwave and Millimeter-wave Applications: Milestone for Next-generation Communication", Junseok Ma, Jinyoung Choi, Sungeun Park, Imbo Kong, Daehyeon Kim, Cheonga Lee, Youngno Youn, Myeonggin Hwang, Seungwon Oh*, Wonbin Hong*­­­­, and Wooksung Kim*,  Adv. Mater. (2023)   

4. “Diffractive liquid crystal device for privacy window with a low operating voltage", Chan-Hee Han, Tae-Hoon Choi, Wook-Sung Kim*, and Seung-Won Oh*,   J. Inf. Disp. (2023)  

5. "Constructing physical space design for high color gamut in mixed reality environment", Jihyung Kim, Jonghyeon Ka, Ju Hong Park, and Wooksung Kim*,  J. Inf. Disp.  (2023)

6. "A Novel High-Voltage-Gain Quasi-Resonant DC-DC Converter with Active-Clamp and Switched-Capacitor Techniques", Im-Bo Kong, Wook-Sung Kim*, and Sang-Won Lee*, IEEE Trans. Ind. Electron. (2023)

7.  “A simulation of liquid crystal grating with field-induced twist deformation for beam-steering applications”, Sun-Geun Park, Ye-Lin Lee, Wook-Sung Kim*, and Seung-Won Oh*, Adv. Photon. Res. (2023)

8. "Phase Shifting Enhancement of a Substrate-Integrated Waveguide Phase Shifter based on Liquid Crystal", Hyunji Shin+, Junseok Ma+, Jinyoung Choi+, and Wooksung Kim*, Appl. Sci. (2023). (+  Authors contributed equally to this work.)

9. "Teaching Methodology for Understanding Virtual Reality and Application Development in Engineering Major", Jihyung Kim, Kyeongsun Kim, Jonghyeon Ka, Wooksung Kim*,  Sustainability (2023).

2022 (5)

1. "An evaluation of Surface-Active Agent Hexadecyltrimethylammonium Bromide with Vertical Self-Alignment Properties to Align Liquid Crystals for Various Cell Gap Conditions", Junseok Ma, Jinyoung Choi, Hyunji Shin, Jaewhan Lee, Seungwon oh*, and Wooksung Kim*,  Appl. Sci. (2022).

2. “A simulation of diffractive liquid crystal smart window for privacy application”, Chan-Hee Han†, Hyeonseok Eo†, Tae-Hoon Choi, Wook-Sung Kim*, and Seung-Won Oh*, Sci. Rep. (2022).

3. "Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks", Badloe, T., Kim, J., Kim, I., Kim, W. S., Kim, W. S. Kim, Y. K., & Rho, J.,  Light: Science & Applications (2022).

4. "Impact of Immersive Virtual Reality Contents Using 360-degree Videos on undergraduate education", Jihyung Kim, Kyeongsun Kim, and Wooksung Kim*, IEEE Transactions on Learning Technologies (2022).

5. "Optical See-Through Head-Mounted Display including Transmittance Variable Display for High Visibility", Jihyung Kim, Seungwon Oh, Jinyoung Choi, Sungeun Park, and Wooksung Kim*, Journal of Information Display (2022).

2021 (3)

1. "Liquid-Crystal-Based Floating-Electrode-Free Coplanar Waveguide Phase Shifter with an Additional Liquid-Crystal Layer for 28-GHz Applications", Junseok Ma, Jinyoung Choi, Seungwon Oh, and Wooksung Kim*, Journal of Physics D: Applied Physics (2021).

2. "액정의 고주파 대역 특성과 RF 응용 기술 동향", Junseok Ma, Jinyoung Choi, Wooksung Kim*, Information Display (2021).

3. "Self-Regulation of Infrared Using a Liquid Crystal Mixture Doped with Push–Pull Azobenzene for Energy-Saving Smart Windows.", Oh, S. W., Nam, S. M., Kim, S. H., Yoon, T. H., & Kim, W. S*, ACS Applied Materials & Interfaces (2021).

Previous Works

1. "Multicolor emissive carbon dot with solvatochromic behavior across the entire visible spectrum", Carbon 156, 110-118, 2020.

2. "Reduction of input voltage/current ripples of boost half-bridge DC-DC converter for photovoltaic micro-inverter", Solar Energy 188, 1084, 2019.

3. "Air-like plasmonics with ultralow-refractive-index silica aerogels", Scientific reports 9, 2019.

4. "Amino-acid-and peptide-directed synthesis of chiral plasmonic gold nanoparticles", Nature 556 (7701), 360-365, 2018.

5. "Facile approach to synthesize highly fluorescent multicolor emissive carbon dots via surface functionalization for cellular imaging", Journal of Colloid and Interface Science 513, 505, 2018.

6. Kim, G., Cho, S., Chang, K., Kim, W. S., Kang, H., Ryu, S. P., ... & Shim, W. (2017). Spatially Pressure‐Mapped Thermochromic Interactive Sensor. Advanced Materials, 29(13), 1606120. 

7. Lorenz, A., Gardiner, D. J., Morris, S. M., Castles, F., Qasim, M. M., Choi, S. S., ... & Wilkinson, T. D. (2014). Electrical addressing of polymer stabilized hyper-twisted chiral nematic liquid crystals with interdigitated electrodes: Experiment and model. Applied Physics Letters, 104(7), 071102. 

8. Atkinson, K. L., Morris, S. M., Qasim, M. M., Castles, F., Gardiner, D. J., Hands, P. J., ... & Coles, H. J. (2012). Increasing the flexoelastic ratio of liquid crystals using highly fluorinated ester-linked bimesogens. Physical Chemistry Chemical Physics, 14(47), 16377-16385. 

9. Gardiner, D. J., Morris, S. M., Hands, P. J., Castles, F., Qasim, M. M., Kim, W. S., ... & Coles, H. J. (2012). Spontaneous induction of the uniform lying helix alignment in bimesogenic liquid crystals for the flexoelectro-optic effect. Applied Physics Letters, 100(6), 063501. 

10. Gardiner, D. J., Morris, S. M., Castles, F., Qasim, M. M., Kim, W. S., Choi, S. S., ... & Coles, H. J. (2011). Polymer stabilized chiral nematic liquid crystals for fast switching and high contrast electro-optic devices. Applied Physics Letters, 98(26), 263508. 

11. Lee, J. H., Song, D. H., Kim, T., Shin, H. K., Jhun, C. G., Kwon, S. B., ... & Kim, J. C. (2011). Reflective dual mode liquid crystal display with dynamic mode utilizing the transition behavior between the two stable states of its memory mode. Japanese Journal of Applied Physics, 50(8R), 084101. 

12. Lee, J. H., Kim, T., Shin, H. K., Jhun, C. G., Kwon, S. B., Kim, D. G., ... & Kim, J. C. (2010). Reflective dual-mode liquid crystal display switchable between dynamic and memory modes. Applied Physics Letters, 97(13), 133510. 

13. Kim, W. S., Elston, S. J., & Raynes, E. P. (2008). Hybrid method for modelling light leakage by a spherical object in a liquid crystal layer. Displays, 29(5), 458-463. 

14. Lee, G. J., Jang, Y. K., Kim, W. S., & Lim, T. K. (1999). Frequency Dependence of Nonlinear Susceptibility of Methyl Orange Embedded in Poly (vinyl alcohol) Matrix: Two-Wave Mixing Study. Japanese journal of applied physics, 38(9R), 5083. 

15. Geon Joon Lee, Sang Hyuck Kim, Jae Cheol Jo, San Sam Chol, Seon Hong Ahn, Wook Sung Kim, Soon Bum Kwon, Tong Kun Lim, ‘Electro-optical Properties of the Intensity and the Phase for the Reflected Light in Reflective Mode, 45deg Twisted Nematic Liquid Crystal Cells’, Ungyoung Mulli, Vol 9, no 2, 167 (1996),

Conference Proceedings / Posters (51)

2024 (4)

1. J. S. Ma, S. W. Oh, J. Y. Choi, H.W.Oh, S.M.Morris*, and W.S. Kim*, "Enhancing Light-driven Polymer Stabilized Liquid Crystal Smart Devices",  The British Liquid Crystal Society: BLCS (2024).

2. J.Y. Choi, J.S. Ma, H.W. Oh, W.S. Kim, "Characterization of Nematic Liquid Crystal at 10 GHz using Director Angle Extraction", 24th Korea Liquid Crystal Conference (2024).

3. S. M. Yu, J. H. Ka, H. S. Eo, W.S. Kim, "Enhanced plasmonic color filters using Fabry-Perot resonator Metasurfaces", CDE (2024).

4. Y. H. Lee, S. G. Park, S. O. Cha, W.S. Kim, "Design and Optimization of All-Dielectric Metasurfaces for Asymmetric Transmission Properties at Visible Wavelengths", CDE (2024).

2023 (10)

1. Y.L Lee, J.H. Park, W.S. Kim, "Effects of Continuously Bending Ridges on Morpho Butterfly Wings", IMID, KOREA, Aug. 22-25, 2023 (2023).

2. T.Y. Kim, W.S. Kim, "Ultra-Wideband Indoor Positioning Using Deep Learning for Integrating Real and Virtual Classroom", IMID, KOREA, Aug. 22-25, 2023 (2023).

3. Y.H. Lee, S.G. Park, W.S. Kim, "Design and Optimization of All-Dielectric Metasurfaces for Asymmetric Transmission Properties at Visible Wavelengths", IMID, KOREA, Aug. 22-25, 2023 (2023).

4. S.Y. Park, S.O. Cha, W.S. Kim, "Applying Vignetting implemented through the average vector of Reversed Optical Flow to frames with Depth of Field for cybersickness mitigation in virtual reality", IMID 2023 (2023).

5. S.O. Cha, S.Y. Park, W.S. Kim, "Analysis of the Relationship between Cybersickness and Vestibular System using Finite Element Method", IMID 2023 (2023).

6. I.B. Kong, S.O. Cha, W.S. Kim, "고승압비 컨버터를 위한 범용성 이 기능 회로 구조", 전력전자학회 2023 (2023).

7. I.B. Kong, S.G. Park, J.H. Ka, H.S. Eo, S.O. Cha, W.S. Kim, "신재생에너지 어플리케이션을 위한 등전류 공유 특성이 내장된 인터리브드 준공진형 DC-DC 컨버터", IEIE 2023 (2023). 

8. S.Y. Park, S.O. Cha, Y.H. Lee, T.Y. Kim, W.S. Kim, "Implementation of Image Processing using Mean Vector of Reversed optical flow", IEIE 2023 (2023).

9. S.O. Cha, I.B. Kong, S.Y. Park, S.M. Yu, W.S. Kim, "A Numerical Analysis of the Cybersickness in Virtual Reality using Finite Element Method",IEIE 2023 (2023).

10. J.Y. Choi, J.S. Ma, S.G. Park, W.S. Kim, "Compact Wideband Tunable Bandstop Filter with Electrically Coupled Open Stubs Using Liquid Crystals",IEIE 2023 (2023). 

2022 (8)

1. H.S. Eo, S.G. Park, W.S. Kim, "Two-Fold Color Compensation Algorithm Operation for Optical See-Through Head Mounted Display.", IDW, Dec. 14-16, 2022 (2022).

2. J.H. Ka, I.B. Gong, W.S. Kim, "Improved Stability of Electroactive Elastomer Tunable Lenses", IDW, Dec. 14-16, 2022 (2022).

3. J.H.Ka, Y.L.Lee, Y.H.Lee, S.Y.Park, W.S.Kim, "Mixed Reality-based Outdoor Training System to Improve Football Player Performance", 2022 ICEET, Oct. 27, 2022 (2022).

4. J.Y. Choi, J.S. Ma, H.J. Shin, W.S. Kim, "Reconfigurable Phased Array Antenna Based on Liquid Crystal With Miniaturized Bandpass Filter", ISAP, Oct.31-Nov.3, 2022 (2022).

5. Y.L. Lee, S.G. Park, W.S. Kim, "The Beam Steering Device with Liquid Crystal Phase Grating", IMID, KOREA, Aug.23-26, 2022 (2022).

6. H.J. Shin, J.Y. Choi, J.S. Ma, W.S. Kim, "Phase Shift Enhancement of Substrate Integrated Waveguide Phase Shifter Using Liquid Crystal", IMID, KOREA, Aug.23-26, 2022 (2022).

7.  J.H. Kim, W.S. Kim, "높은 몰입감 제공을 위한 조도 전환형 혼합현실 전용 강의실 설계", 대한전자공학회 하계학술대회 (2022).

8. J.S. Ma, J.Y. Choi, H.J. Shin, W.S. Kim, "Comparative Analysis of Liquid-Crystal Driving between the Grounded-Coplanar Waveguide and the Floating-Electrode-Free Coplanar Waveguide in Liquid-Crystal Phase Shifters", AP-S/URSI 2022 (2022).

2021 (5)

1. J.H. Ka, I.B. Gong, W.S. Kim, "Self-Controlled Electroactive Tunable Liquid Lens for Stabilized Focal Length Change", IMID, KOREA, Aug. 25-27, 2021 (2021).

2. H.S. Eo, S.W. Oh, W.S. Kim, "Novel Structure for 2-Dimensional Liquid Crystal Phase Grating with a Vertically Aligned Fringe-Field Switching Mode", IMID, KOREA, Aug. 25-27, 2021 (2021).

3. J.S. Ma, H.J. Shin, W.S. Kim, "Analysis about Novel Design of Liquid Crystal Based Floating Electrode Free Coplanar Waveguide Phase Shifter for Performance Improvement", IMID, KOREA, Aug.25-27, 2021 (2021).

4. J.Y. Choi, W.S. Kim, "Comparison of Figure-of-Merit Efficiency in Liquid Crystal Phase Shifter Operating Modes: Electrically Controlled Birefringence vs. In-Plane Switching", IMID, KOREA, Aug. 25-27, 2021 (2021).

5. J.H. Kim, J.H. Ka, H.S. Eo, W.S. Kim, "VR 기반 360 강의 컨텐츠를 활용한 몰입형 강의 체계 구축", 대한전자공학회 2021 하계종합학술대회 (2021).

2020 (7)

1. S.O. Cha, J.S. Ma, W.S. Kim, "Concept and Numerical Modeling for virtual acceleration sense on vestibular organ using focused ultrasound", IMID, KOREA, Aug. 25-28, 2020 (2020). 

2. I.B. Gong, W.S. Kim, "A Self-Sensing Electroactive Soft Photonic Devices for improvement of color expression performance", IMID, KOREA, Aug. 25-28, 2020 (2020). 

3. S.G. Park, J.Y. Choi, W.S. Kim 'Estimation of Beads Distribution Inside an Electroactive Photonic Crystal System', IMID 2020 (2020)

4. J.H. Kim, J.H. Ka, S.G. Park, W.S. Kim, ‘투과도 가변 디스플레이를 이용한 투과형 증강현실 디스플레이의 관한 연구’, In Summer Annual Conference of OSK 2020 (2020).

5. J.H. Kim, J.H. Ka, W.S. Kim, ‘Improved optical see-through head mounted display using transmittance variable display’, IMID 2020 (2020).

6. J.H. Kim, S.G. Park, W.S. Kim, ‘A structure of optical see-through head mounted display’, ICEIC 2020 (2020).

7. S.O. Cha, I.B. Gong, W.S. Kim, "Active Matrix Driving System for Photonic Nanomaterial Display to Synthesize color and sound", ICEIC 2020 (2020).

2019 (4)

1. I.B. Gong, S.G. Park, W.S. Kim, "Simulation analysis of LC-based array antenna operation and its radiation pattern", IMID 2019 (2019).

2. S.O. Cha, W.S. Kim, "Concept of spatial front sound and optically invisible antenna on display liquid crystal cellular devices", IMID 2019 (2019).

3. J.H. Kim, W.S. Kim, ‘Pinhole array와 MEMS IMU를 이용한 증강현실용 헤드마운트디스플레이’, In Summer Annual Conference of IEIE 2019 (2019).

4. J.H. Kim, W.S. Kim, ‘A structure of optical see-through head mounted display’, IMID 2019 (2019).

Previous Works

1. Park, S. H., Lee, S. W., Hwang, B. H., Lee, J. M., Kim, W. S., Shin, W. S., ... & Hwang, Y. K. (2011, June). 38.6 L: Late‐News Paper: Advanced Coatable Polarizer Technology by Using Novel Liquid Crystalline Materials and Organic Dyes. In SID Symposium Digest of Technical Papers (Vol. 42, No. 1, pp. 532-535). Oxford, UK: Blackwell Publishing Ltd.

2. Lee, J. H., Lee, W. H., Shin, D. C., Lim, J. H., Park, K. B., Lee, J. D., ... & Chung, I. J. (2010, May). P‐141: The Advanced Transflective IPS LCD by Photo Alignment Technology. In SID Symposium Digest of Technical Papers (Vol. 41, No. 1, pp. 1791-1793). Oxford, UK: Blackwell Publishing Ltd. 

3. Ahn, H. J. (2010). Advanced UV Alignment Technology in IPS-LCD for the Improvement of Color and Viewing Angle. Proc. IDW, 2010, 27-28. 

4. Kim, D. G., Lee, W. K., Ahn, H. J., Hwang, H. S., Woo, J. W., Kim, W. S., ... & Chung, I. (2009, June). P‐195L: Late‐News Poster: Effect of the Surface Anisotropy of a Rubbed Polyimide Film on Liquid Crystal Alignment Properties. In SID Symposium Digest of Technical Papers (Vol. 40, No. 1, pp. 1641-1643). Oxford, UK: Blackwell Publishing Ltd. 

5. Jung, S. M., Park, J. U., Lee, S. C., Kim, W. S., Yang, M. S., Kang, I. B., & Chung, I. J. (2009, June). 25.4 L: Late‐News Paper: A Novel Polarizer Glasses‐Type 3D Displays with an Active Retarder. In SID Symposium Digest of Technical Papers (Vol. 40, No. 1, pp. 348-351). Oxford, UK: Blackwell Publishing Ltd. 

6. Wooksung Kim et. al., ‘2D/3D Convertible Display Technologies for Liquid Crystal Displays’, Korea Liquid Crystal Conference, 13 January 2009,

7. W. S. Kim, S. J. Elston, E. P. Raynes, ‘Hybrid Method using Geometrical Optics Approach and Extended Jones Matrix Method for Modelling Light Leakage by a Spherical Object in a Liquid Crystal Layer’, Poster at 21st British Liquid Crystal Society Annual Conference 28-30 March 2007 at University of Sheffield,

8. W. S. Kim, S. J. Elston, E. P. Raynes, ‘Modelling of the Light Scattering by Spherical Objects in Liquid Crystal Displays’, Poster at 20th British Liquid Crystal Society Annual Conference, 11-13 April 2006 at University of York,

9. W. S. Kim, S. J. Elston, E. P. Raynes, ‘Influence of the light scattering from spacers on optical characteristics of liquid crystal displays’, Poster at 19th British Liquid Crystal Society Annual Conference 22-24 March 2005 at Exeter University,

10. Ho Seon Rew, Young Ho Oh, Wooksung Kim, Hyun Ho Shin, Soon Bum Kwon and Woo-Sang Park, ‘Simulation for the Two Dimensional Analysis in TFT-LCDs’, Proceedings of 94 Fifth Molecular Electronics Symposium, 115 (1994),

11. WS, P., Kim, W., Kang, D., JH, K., SB, K., & SH, A. (1994). Electro-Optical Characteristics of FLTN-LCDs Optimized by Optical Compensation Method. ITE Technical Report, 18(62), 19-24. 

12. Kwon, S. B., Park, W. S., Kim, W., & Ahn, S. H. (1993). Simple Method for Optimization of Electro-Optical Properties in FSTN-LCDs. In SID INTERNATIONAL SYMPOSIUM DIGEST OF TECHNICAL PAPERS (Vol. 24, pp. 626-626). SOCIETY FOR INFORMATION DISPLAY. 

13. Yoon, J. K., Choi, H. S., Kim, W., Kwon, S. B., & Park, W. S. (1992). Transient Analysis of TFT-LCDs with Analytic Modeling of TN-LC Cells. Proc. IDRC, 435-438. 

Patent Registration (10)

1. "Encoding method and decoding method using metal nanostructures", US Patent 등록번호 10967666 (2021.04.06), 출원번호 16608814, (2018.04.27) LG Display, Seoul National University R&DB Foundation

2. "Method for manufacturing a metal nanostructure having a chiral structure comprising regioselectivity adsorbing a peptide on the surface of a metal  seed particle", US Patent 등록번호 10865277 (2020.12.15), 출원번호 15965726 (2018.04.27) LG Display, SNU R&DB Foundation

3. "투명도 측정장치를 포함하는 측정 시스템 및 투명도 측정 방법", 한국특허 등록번호 1021299730000 (2020.06.29) 출원번호 1020130114583 (2013.09.26) LG Display.

4. "전기영동 입자 및 이를 포함하는 전기영동 광 셔터 디스플레이 장치", 한국특허 등록번호 1020914030000 (2020.03.16) 출원번호 1020130162336 (2013.12.24) LG Display

5. "Liquid lens and liquid lens module", US Patent 등록번호 10474000 (2019.11.12), 출원번호 : 15629062 (2017.06.21) LG Display, KAIST

6. "광편향패널과 이를 사용한 표시장치", 한국특허 등록번호 1020028200000 (2019.07.17) 출원번호 1020130006499 (2013.01.21) LG Display.

7. "발광효율의 감소 없이 야외 시인성을 향상시킨 유기발광 디스플레이 장치", 한국특허 등록번호 1019711460000 (2019.04.16) 출원번호 1020120131160 (2012.11.19), LG Display.

8. "듀얼 모드 액정표시장치", 한국특허 등록번호 1018885160000 (2018.08.08) 출원번호 1020110049121 (2011.05.24) LG Display

9.  "비씨에스엔 모드 액정표시장치", 한국특허 등록번호 1018559850000 (2018.05.02) 출원번호 1020100135018 (2010.12.24) LG Display

10. "액정표시장치", 한국특허 등록번호 1016824330000 (2016.11.29) 출원번호 1020100077996 (2010.08.12) LG Display

Book / Book Chapters (2)

1. "빅테크 트렌드 CES 2022 한 권으로 끝내는 미래 혁신 기술 대전망", 4장. 격동하는 미래 산업 - 메타버스, 새로운 미래이자 기회, 매일경제신문사, 2022.02.

2. "미래 디스플레이 핵심기술 개발 사업 로드맵 (2020 미래 디스플레이 로드맵)", 한국디스플레이연구조합, 2020.2.20.