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Cheng, Ko-Ting Distinguished Professor
(Chair)
 
886-3-4227151 ext 65269
886-3-4252897
IL-429
chengkt@dop.ncu.edu.tw



Biography

Ko-Ting Cheng received his B.S., M.S. and Ph.D. degrees in Physics from National Cheng Kung University (NCKU, Taiwan) in 2001, 2003 and 2006, respectively. He is currently a full professor in the Department of Optics and Photonics at National Central University in Taiwan. Prior to this designation, from Jan. 2007 to Jul. 2010, he was a postdoctoral researcher in Prof. Andy Ying-Guey Fuh’s lab, Electro-Optical Laboratory, in the Department of Physics of NCKU. After that, between Aug. 2010 and Jan. 2013, he worked on the same group as an assistant research scholar, supported by National Science Council, Taiwan. In the meantime, Dr. Cheng joined Prof. Harry J. Coles’ group at Centre of Molecular Materials for Photonics and Electronics (cmmpe), Centre for Advanced Photonics and Electronics (CAPE), Department of Engineering, University of Cambridge, United Kingdom, as a visiting researcher in 2012 for 6 months. In Feb. 2013, he joined the faculty of the DOP at NCU as an assistant professor, and has been promoted to associate professor and professor in Aug. 2017 and Aug. 2021, respectively. In 2016, he was awarded the “2016 Young Photonics Engineering Award” by the Taiwan Photonics Society (TPS). Now, he is also serving as a director in council of Taiwan Liquid Crystal Society (TLCS), and the vice Secretary-General of TPS.

Dr. Cheng’s current research interests in liquid crystal (LC) field are mainly in the following areas: physics and electro-optics of LCs, bistable/multistable LC devices, LC asymmetrical optics, LC green optics, LC polarization optics, light scattering, alignment and photo-alignment of LCs, flexible electronics, LC display technology, LC simulations, color vision, color gamut, some functional materials (monomers / polymers / azobenzenes / micro-particles / nano-particles / ionic LCs / gelators / LC elastomers), and LC devices (light shutters / lenses / gratings / apertures / polarization rotator / fast switching / antenna / smart windows). Dr. Cheng has been continuously publishing the research results in SCI journals.


Education

Ph.D. in Physics, National Cheng Kung University, Taiwan

Work Experience
  • 2021/08 –                 Professor at Department of Optics and Photonics, NCU
  • 2017/08 – 2021/07    Associate Professor at Department of Optics and Photonics, NCU
  • 2014/02 – 2017/07    Assistant Professor at Department of Optics and Photonics, NCU
  • 2013/02 – 2014/01    Project Assistant Professor at Department of Optics and Photonics, NCU
  • 2010/08 – 2013/01    Assistant Research Scholar, supported by NSC (Department of Physics, NCKU)
  • 2012/03 – 2012/08    Visiting Scholar, cmmpe, CAPE, Department of Engineering, University of Cambridge
  • 2007/01 – 2010/07    Postdoctoral Researcher, supported by NSC (Department of Physics, NCKU)
Research Interests

Physics and electro-optics of LCs, bistable/multistable LC devices, light scattering, alignment and photo-alignment of LCs, flexible electronics, LC display technology, LC simulations, color vision, color gamut, some functional materials (monomers / polymers / azobenzenes / micro-particles / nano-particles / ionic LCs), and LC devices (light shutters / lenses / gratings / apertures / polarization rotator / fast switching /antenna /smart windows)

Research Groups Display TechnologyHolography and Optical Information ProcessingLasersOptoelectronics

Current Research Areas

The major research interests cover the electro-optical properties of liquid crystals (LCs) and their physics and applications. The used materials include nematic LCs, cholesteric LCs, blue phase LCs, ferroelectric LCs, azobenzenes (chiral dopants, polymers, dyes, etc.), monomers, polymers, micro-/nano-particles, ionic materials, chiral dopants, mesoporous, and others. Recently, we are studying their properties and developing some applications based on the above materials, including LC alignment, LC photoalignment, LC lens, polymer-dispersed LCs (PDLCs), nanoparticle-doped LCs, electrically and optically controllable smart windows, controlling the reflection band of cholesteric LCs (CLCs), flexible LC electronics, holographic gratings, polarization convertors, LC displays (LCDs), multistable LCDs, fast response, antennas, simulations, and so on.

Distinctions
  • 2017 Outstanding Teaching Award, awarded by National Central University
  • A director in the council of Taiwan Liquid Crystal Society (TLCS)
  • Editor for Newsletter of Taiwan Photonics Society (TPS)
  • Technical program committee, The Optics & Photonics Taiwan, the International Conference (OPTIC 2017).
  • Technical Program Sub-committee member, The 2017 International Display Manufacturing Conference (IDMC’17).
  • Outstanding Poster Award, The 3rd Asian Conference on Liquid Crystals (ACLC 2017).
  • Local organizing committee, The 3rd Asian Conference on Liquid Crystals (ACLC 2017).
  • 2016 Young Photonics Engineering Award, Taiwan Photonics Society.
  • Two M.S. Students, Po-Yi Lee and Wei-Hsuan Chen, were awarded the “2016 Student Thesis Award” from the Taiwan Photonics Society.
  • Hosted the 2015 Annual Meeting of Taiwan Liquid Crystal Society.
  • program committee, 2013-2015, The Optics and Photonics Taiwan, the International Conference.
  • Program Committee, 2014 International Conference on Materials and Engineering Technology (MET2014)
  • Program Committee, Global Conference on Materials Science and Engineering (CMSE 2013)
  • Outstanding Poster Paper Award, 20th International Display Workshops.
  • Poster Paper Award, 2012 Annual Meeting of Physical Society
  • Outstanding Poster Paper Award, 2010 Taiwan Display Conference
  • Poster Paper Award, 2010 Annual Meeting of Physical Society.
Selected Publications
Journal Papers
 No. Title
1 Cheng-Kai Liu§, Shu-Ching Chang§, Yung-Shiang Juang, and Ko-Ting Cheng*, “Hiding private information in private information protection liquid crystal displays using periodical waveplates and pixel quaternity,” Opt. Express 31(2) 2445-2455 (2023).
2 Ko-Ting Cheng, Hengyu Guo, Vincent K. S. Hsiao*, Jr-Hau He, and Zhong Lin Wang*, “Polymer-Dispersed Liquid Crystals Actuated by a Rotary Triboelectric Nanogenerator,” IEEE Photon. Technol. Lett. 34(24) 1369-1372 (2022).
3 Cheng-Kai Liu, Shu-Ching Chang, Sheng-Wen Wang, and Ko-Ting Cheng*, “Privacy-protection system using a unidirectional emission waveguide liquid crystal display and an asymmetrical transmission window system,” Opt. Lasers Eng. 158, 107175 (2022).
4 Cheng-Kai Liu§, Chi-Tang Huang§, Jyun-Cong Lai, and Ko-Ting Cheng*, “Spontaneous and field-induced evolutions of 2D patterns in fingerprint chiral textures,” J. Mol. Liq. 361, 119504 (2022).
5 Cheng-Kai Liu§, Ming-Chi Liao§, Chi-Tang Huang, Shao-Hao Liao, and Ko-Ting Cheng*, “Detection of polarization state of a polarized light using azimuthally symmetric dye-doped liquid crystals,” Dyes Pigment. 204, 110446 (2022).
 
Book(s)/Book Chapter(s)  
  • Cheng-Chung Lee, “The Current Trends of Optics and Photonics,” Chapter 12 Liquid Crystal Display-Present Status and Emerging Technology (2015, Springer Science); ISBN 978-94-017-9391-9 ISBN 978-94-017-9392-6 (eBook)
 
Research Projects
Position Project Project Duration Funding Agent Grant (NT$)
PI
Studies of the frontier liquid crystal electro-optical technologies and their applications using the composites of liquid crystals, nano-particles, ionic materials, gelators, polymers, and mesoporous
2017-08-01 - 2020-07-31 Ministry of Science and Technology, Taiwan 7,676,000
PI
Studies of the electro-optical properties of nanosphere-, azobenzene-, monomer-doped nematic and blue phase liquid crystals, and multi-stable scattering mode liquid crystal light shutters
2014-08-01 - 2017-07-31 Ministry of Science and Technology, Taiwan 7,544,000
PI
Studies of novel and particular liquid crystal electro-photonics and thier applications
2013-08-01 - 2014-07-31 National Science Council, Taiwan 960,000
PI
Examination of electrically controllable liquid crystal glasses
2013-04-01 - 2013-12-31 E Sheng Opto-Tech CO., LTD. 301,400
PI
Studies of the electro-optical properties of nanoparticles- and azo materials-doped liquid crystals/liquid crystal-polymer composites and their applications
2010-08-01 - 2013-10-31 National Science Council, Taiwan 932,000
Laboratory
Liquid Crystal Electro-Optical Laboratory (Ⅰ)
Liquid Crystal Electro-Optical Laboratory (II)

 

Address: Kwoh-Ting Optics and Photonics Building, No. 300, Zhongda Rd., Zhongli District, Taoyuan City, Taiwan (R.O.C.)
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