Kyungah Choi, Ph.D.

Senior Designer of UX Team, Visual Display Division, Samsung Electronics

My main research objective is to contribute to the development of products that can enhance momentary as well as long-term user experiences. I am interested in how technologies can be systematically designed to enrich user experiences by sensing, interpreting, and reacting to human emotions and behaviors. As a design researcher with deep quantitative expertise, I will work with multidisciplinary teams and use research findings to inform and inspire strategic decisions and design solutions.

EXPERIENCE

PROFESSIONAL EXPERIENCE

  • Senior Designer, UX Team, Visual Display Division, Samsung Electronics, Seoul, Republic of Korea (2020~Present)

  • Startup Advisor, LUPLE (Samsung Electronics Spin-off), Seoul, Republic of Korea (2020)

  • Research Professor, Dept. of Industrial Design, KAIST, Daejeon, Republic of Korea (2018~2020)

  • Lecturer, Dept. of Visual Communication Design, Hanbat National University, Daejeon, Republic of Korea (2018~2019)

  • Postdoctoral Fellow, Industry Management Research Center, KAIST, Daejeon, Republic of Korea (2017~2018)


ACADEMIC SOCIETY

  • Editorial board, Korea Society of Color Studies (2019~Present)

EDUCATION

  • Ph.D. in Industrial Design, KAIST, Republic of Korea (2014~2017)

Dissertation: Dynamic lighting for a better learning environment
  • M.S. in Industrial Design, KAIST, Republic of Korea (2012~2014)

Thesis: User-preferred white point adjustment for displays under varying illumination conditions
  • B.S. in Industrial Design, KAIST, Republic of Korea (2007~2012)

Grand prize for graduation & Department honors scholarship

PUBLICATIONS

SCI JOURNALS

  • Choi, K. & Suk, H. J. (2020). “The gradual transition from blue-enriched to neutral white light for creating a supportive learning environment .” Building and Environment, 180, 107046.

  • Lim, D., Choi, K., Hayati, D., Park, D., Ghifari, A., Lee, K. M., Ko, Y., Jun, Y., Suk, H. J., & Hong, J. (2019). “Blue-colored dyes featuring a diketopyrrolopyrrole spacer for translucent dye-sensitized solar cells.” Dyes and Pigments, 173, 107840.

  • Choi, K., Shin, C., Kim, T., Chung, H. J., & Suk, H. J. (2019). “Awakening effects of blue-enriched morning light exposure on university students’ physiological and subjective responses.” Scientific Reports, 9, 345.

  • Choi, K., Kim, T., Chang, J., & Suk, H. J. (2018). “True white point for television screens across different viewing conditions.” IEEE Transactions on Consumer Electronics, 64(3), 292-300.

  • Choi, K. & Suk, H. J. (2016). “Assessment of white for displays under dark- and chromatic-adapted conditions.” Optics Express, 24(25), 28945.

  • Choi, K. & Suk, H. J. (2016). “Dynamic lighting system for the learning environment: performance of elementary students.” Optics Express, 24(10), A907-A916.

  • Choi, K., Lee, J., & Suk, H. J. (2016). “Context-based presets for lighting setup in residential space.” Applied Ergonomics, 52, 222-231.

  • Na, N., Choi, K., & Suk, H. J. (2016). “Adaptive luminance difference between text and background for comfortable reading on a smartphone.” International Journal of Industrial Ergonomics, 51, 68-72.

  • Choi, K. & Suk, H. J. (2015). “Optimal employment of color attributes to achieve saliency in icon matrix designs.” Color Research & Application, 40(5), 429-436.

  • Choi, K. & Suk, H. J. (2014). “User-preferred color temperature adjustment for smartphone display under varying illuminants.” Optical Engineering, 53(6), 061708.

  • Na, N., Choi, K., Lee, J., & Suk, H. J. (2014). “Color tolerance study on white in practical aspect: Perceptibility versus acceptability.” Color Research & Application, 39(6), 582-588.


SCOPUS JOURNALS

  • Choi, K., Kim, T., & Suk, H. J. (2020). “Lighting User Experience (LUX) cards: A card-based design tool for the design of smart lighting solutions.” Archives of Design Research, 33(1), 55-65.


DOMESTIC JOURNALS

  • 최경아 (2018). 스마트 시대에서의 인간 중심 조명. 조명·전기설비, 32(5), 25-30.

  • Na, N., Choi, H., Jeong, K. A., Choi, K., Choi, K., Choi, C., & Suk, H. J. (2017). “Smartphone use at night affects melatonin secretion, body temperature, and heart rate.” Korean Journal of the Science of Emotion and Sensibility, 20(4), 135-142.

  • Kim, T., Choi, K., & Suk, H. J. (2017). “Beverage taste perception influenced by its turbidity.” Korean Journal of the Science of Emotion and Sensibility, 20(2), 3-10.

  • Lee, J., Choi, K., & Suk, H. J. (2013). “Empirical evaluation of user-centered LED lighting in residential bathrooms.” Korean Journal of the Science of Emotion and Sensibility, 16(3), 305-310.


INTERNATIONAL CONFERENCES

  • Choi, K., Ma, D., & Nam, S. (2019). “Development of UX scenarios for foldable phones.” KSDS Spring International Conference, 88-89.

  • Kim, T., Jeong, J., Choi, K., & Suk, H. J. (2018). “LightUp Cards: Bringing Knowledge Together in Designing Smart Lighting.” KSDS Fall International Conference, 20-21.

  • Je, S., Choi, O., Choi, K., Lee, M., Suk, H. J., Chan, L., & Bianchi, A. (2017). “Designing skin-dragging haptic motions for wearables.” ACM International Symposium on Wearable Computer (ISWC ’17), 98-101.

  • Choi, K., Shin, C., Chung, H. J., & Suk, H. J. (2017). “Lighting design considerations: The impact of light on melatonin secretion.” Asia Design Engineering Workshop, 73.

  • Choi, K., Kim, T., & Suk, H. J. (2017). “White perception of display devices in dark and lit environments.” Asia Design Engineering Workshop, 77.

  • Choi, K. & Suk, H. J. (2017). “Facial skin color variability in Korean women.” International AIC Colour Congress, PS02-01.

  • Choi, H., Choi, K., & Suk, H. J. (2017). “The human sclera and pupil as the calibration targets.” IS&T Electronic Imaging, 200.

  • Choi, H., Choi, K., & Suk, H. J. (2017). “Skin-representative region in a face for finding real skin color.” IS&T Electronic Imaging, 66.

  • Choi, H., Choi, K., & Suk, H. J. (2017). “Performance of the 14 skin-colored patches in accurately estimating human skin color.” IS&T Electronic Imaging, 62.

  • Kim, M., Choi, K., & Suk, H. J. (2016). “Yo!: Enriching emotional quality of single-button messengers through kinetic typography.” ACM Conference on Designing Interactive Systems (DIS ’16), 276-280.

  • Choi, K., Bae, H., Ju, S. W., & Suk, H. J. (2015). “Visual search and attention: What eye-tracking reveals about visual performance in the curved display.” SID Symposium Digest of Technical Papers, 46(1), 798-801.

  • Na, N., Jeong, K. A., Ju, S. W., Choi, K., & Suk, H. J. (2015). “Will curved displays become mainstream in electronics? Appraisal for aesthetic and usability aspects of curved large displays.” SID Symposium Digest of Technical Papers, 46(1), 1251.

  • Lee, J., Choi, K., & Suk, H. J. (2015). “PicLight: User-centered lighting control interface for residential space.” Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA ’15), 1705-1710.

  • Choi, K. & Suk, H. J. (2015). “A comparative study of psychophysical judgment of color reproductions on mobile displays between Europeans and Asians.” IS&T/SPIE Electronic Imaging, 93950T.

  • Choi, K. & Suk, H. J. (2014). “Optimal color temperature adjustment for mobile devices under varying illuminants.” IS&T/SPIE Electronic Imaging, 90150H.

  • Choi, K., Jang, J., & Suk, H. J. (2014). “Recalling white point of smartphone under varying illuminants.” IS&T/SPIE Electronic Imaging, 90150K.

  • Choi, K. & Suk, H. J. (2014). “The optimal color temperature of smartphone display under various illuminant conditions.” IEEE International Conference on Consumer Electronics (ICCE), 506-507.

  • Lee, J., Choi, K., & Suk, H. J. (2013). "Using eye tracking to investigate saliency of color attributes for digital interfaces with icon matrix arrangements." International Congress of International Association of Societies of Design Research (IASDR), 3183-3192.

  • Lee, J., Na, N., Choi, K., & Suk, H. J. (2013). "LED lighting for educational environment: Focusing on math and multimedia based tasks for 4th grade elementary school students in South Korea." International AIC Colour Congress, 1569-1572.

  • Baik, M., Suk, H. J., Lee, J., & Choi, K. (2013). “Investigation of eye-catching colors using eye tracking.” IS&T/SPIE Electronic Imaging, 86510W.

  • Choi, K., Ma, D., & Nam, S. (2019). “Development of UX scenarios for foldable phones.” KSDS Spring International Conference, 88-89.


PATENTS

  • PCT Application (2018). System and method for correcting color of digital image based on the human sclera and pupil, International Publication Number: WO 2018/080575.

  • Korea Patent Registration (2020). 환기정보표시 창호시스템, 10-2171069.

  • Korea Patent Registration (2020). 사용자활동패턴 맞춤형 욕실조명시스템, 10-2141226.

  • Korea Patent Registration (2020). 콘텐츠 가독성 향상 방법 및 이를 위한 단말기, 10-2094504.

  • Korea Patent Registration (2018). 눈 흰자위와 동공의 색을 기반으로 한 디지털 이미지의 색 보정, 10-1854991.

  • Korea Patent Application (2020). 대중 교통 환경에서의 자세 기반 개인화 감성 조명, 10-2020-0012567.

FUNDED R&D PROJECTS

PRINCIPAL INVESTIGATOR

  • National Research Foundation of Korea (NRF), Development of human centric lighting solutions towards the sustainable advancement in smart lighting. Principal Investigator. (2019~2020)

  • Samsung Electronics, Smart control of desk lamp using artificial intelligence. Principal Investigator. (2018)

  • Samsung Display, User experience design for foldable smartphone. Principal Investigator. (2018)


PARTICIPATION

  • Hyundai Development Company (HDC) iControls, Designing connected lighting systems for future smart home. Senior Researcher. (2018)

  • Hyundai Motor Group, Smart lighting solution for future bus. Senior Researcher. (2018)

  • SL Co., Development of smart automotive lighting strategy for healthcare. Senior Researcher. (2018)

  • National Research Foundation of Korea (NRF), UX design and prototyping towards a sustainable lighting system. Senior Researcher. (2018~2020)

  • LG Electronics, Light room construction for color, material, and finish (CMF) design. Senior Researcher. (2017)

  • Samsung Electronics, Development of color reproduction strategy for TV displays based on illuminant and genre. Senior Researcher. (2017)

  • Estée Lauder Companies Inc., Capturing skin color through illuminant estimation in images that contain faces. Senior Researcher. (2016)

  • National Research Foundation of Korea (NRF), Visual-environment system for future smart classrooms based on learning activities. Senior Researcher. (2015~2018)

  • Samsung Display, Exploration of cognitive and affective responses to curved displays. Researcher. (2014)

  • Samsung Electronics, Development of smartphone color strategy for improving readability and usability. Researcher. (2013)

  • Samsung Electronics, Scenario development for smartphone display colors based on user context. Researcher. (2012)

  • Korea Photonics Technology Institute, Design of user-centered LED lighting system for educational and residential facilities. Researcher. (2012~2013)

  • National Research Foundation of Korea (NRF), Development of database relating to affective responses to LED lighting. Researcher. (2012)

AWARDS & HONORS

AWARDS

  • Top 10 Research Achievements of 2019, KAIST (2020)

  • Academic Service Award, Korea Society of Color Studies (2019)

  • Excellence in Teaching Award, Industrial Design Department, KAIST (2019)

  • Design Seminar on University Students Winner, Korea Society of Design Science (2017)

  • Best Paper Award, Korean Society for Emotion and Sensibility (2013)

  • Grand Prize for Graduation, Industrial Design Department, KAIST (2012)

  • International Eyeware Design Competition Winner, Opus Design Award, Japan (2010)

  • Solidworks Design Contest Excellence Award, Dassault Systèmes SolidWorks Co. (2009)


HONORS

  • National Scholarship, Korea Ministry of Education (2012~2017)

  • The 18th Scholarship (Academic Excellence), Guwon Scholarship Foundation (2011)

  • The 14th Scholarship (Academic Excellence), Guwon Scholarship Foundation (2019)

  • Department Honors Scholarship (Dean’s List), KAIST (2008~2011)

  • National Academic Excellence Scholarship (Science and Engineering), Korea Student Aid Foundation (2007~2011)

OTHERS

IN MEDIA


TALKS

  • Human-Centric Lighting Design for Vehicles. IASDR Conference Workshop, Manchester, UK (2019)

  • Lighting Design Guide. Dongguk University, Seoul (2019)

  • Life in Color. Chung-Ang University, Seoul (2018)

  • Light in the Eye of the Beholder. Yeungnam University, Gyeongsan (2017)

  • Flipped Classroom. Korea Aerospace University, Goyang (2017)

  • How Light and Color Shape Human Behavior. UNIST, Ulsan (2017)

  • Light, Color, and Human Behavior. Chung-Ang University, Seoul (2017)

  • Flipping the Classroom. Korea Aerospace University, Goyang (2017)

  • Quantitative Approaches to Polish Creative Thinking. Seoul National University (2016)

  • Color Theory for Designers: Understanding Color Spaces. Practical Sketch Inc. (2016)